US AIRWAYS GROUP INC
PRER14A, 2000-08-15
AIR TRANSPORTATION, SCHEDULED
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    AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON AUGUST 15, 2000

                                                            PRELIMINARY COPY
==============================================================================

                               UNITED STATES
                     SECURITIES AND EXCHANGE COMMISSION
                           Washington, D.C. 20549
                             -----------------

                          SCHEDULE 14A INFORMATION
                 PROXY STATEMENT PURSUANT TO SECTION 14(a)
                   OF THE SECURITIES EXCHANGE ACT OF 1934
                             (AMENDMENT NO. 1)

                             -----------------

Filed by the Registrant |X|
Filed by a Party other than the Registrant |_|

Check the appropriate box:
|X|   Preliminary Proxy Statement         |_|   Confidential, For Use of the
                                                Commission Only (as permitted
|_|   Definitive Proxy Statement                by Rule 14a-6(e)(2))
|_|   Definitive Additional Materials
|_|   Soliciting Material Pursuant to Rule 14a-12

                           US Airways Group, Inc.
              (Name of Registrant as Specified in Its Charter)

Payment of Filing Fee (Check the appropriate box):
|_| No fee required.
|_| Fee computed on table below per Exchange Act Rules 14a-6(i)(1) and 0-11.
    (1)  Title of each class of securities to which transaction applies:
    (2)  Aggregate number of securities to which transaction applies:
    (3)  Per unit price or other underlying value of transaction computed
         pursuant to Exchange Act Rule 0-11 (set forth the amount on which
         the filing fee is calculated and state how it was determined):
    (4)  Proposed maximum aggregate value of transaction:
    (5)  Total fee paid:
|X| Fee paid previously with preliminary materials.
|_| Check box if any part of the fee is offset as provided by Exchange
    Act Rule 0-11(a)(2) and identify the filing for which the offsetting
    fee was paid previously. Identify the previous filing by registration
    statement number, or the Form or Schedule and the date of its filing.
    (1)  Amount Previously Paid:
    (2)  Form, Schedule or Registration Statement No.:
    (3)  Filing Party:
    (4)  Date Filed:

------------------------------------------------------------------------------

                                                              PRELIMINARY COPY

                                   [LOGO]

                           US AIRWAYS GROUP, INC.
                             2345 CRYSTAL DRIVE
                         ARLINGTON, VIRGINIA 22227

                                                    [August]   , 2000

Dear Stockholder:

      We invite you to attend a special meeting of stockholders of US
Airways Group, Inc. ("US Airways") to be held at 9:30 a.m., local time, on
[September]   , 2000, at [      ] .

      At the special meeting, we will ask you to adopt the merger agreement
that we entered into on May 23, 2000 with UAL Corporation pursuant to which
our company will be merged with a wholly- owned subsidiary of UAL
Corporation. If we complete the merger, you will receive $60.00 in cash for
each share of US Airways common stock you own and US Airways will become a
100% owned subsidiary of UAL Corporation. The $60.00 per share being paid
in the merger represents a premium of approximately 130% over the $26.31
closing price of US Airways common stock on May 23, 2000, the last trading
day before we announced the signing of the merger agreement.

      We cannot complete the merger unless the conditions to closing are
satisfied, including the adoption of the merger agreement by holders of a
majority of the outstanding shares of US Airways common stock and
satisfying various regulatory requirements. We believe that efforts
sufficient to satisfy the requisite regulatory requirements can be
concluded on or before January 1, 2001 and, assuming the merger agreement
is adopted by the holders of a majority of the outstanding shares of US
Airways common stock, the transaction will be consummated promptly
following satisfaction of such regulatory requirements. However, we cannot
assure you that such requirements will be satisfied or, if satisfied, when
they will be satisfied.

      The Board of Directors carefully reviewed and considered the terms
and conditions of the proposed merger. Based on its review, the Board of
Directors has determined that the terms of the merger agreement and the
merger are advisable and are fair to and in the best interests of US
Airways and its stockholders. In making this determination, the Board of
Directors considered, among other things, an oral opinion (which was
subsequently confirmed in writing) dated May 23, 2000 of Salomon Smith
Barney Inc., the company's financial advisors, to the effect that, as of
that date and on the basis of and subject to the matters reviewed with the
Board of Directors, the $60.00 per share to be received by you in the
merger was fair to you from a financial point of view.

      THE BOARD OF DIRECTORS OF US AIRWAYS, BASED ON ITS DETERMINATION THAT
THE MERGER AGREEMENT AND THE MERGER ARE ADVISABLE AND ARE FAIR TO AND IN
THE BEST INTERESTS OF US AIRWAYS AND ITS STOCKHOLDERS, HAS APPROVED THE
MERGER AGREEMENT AND THE MERGER. ACCORDINGLY, THE BOARD RECOMMENDS THAT YOU
VOTE "FOR" ADOPTION OF THE MERGER AGREEMENT.

      The attached notice of special meeting and proxy statement explain
the proposed merger and merger agreement and provide specific information
concerning the special meeting. Please read these materials (including the
appendices) carefully.

      Your vote is important. Whether or not you plan to attend the special
meeting, you should complete, sign, date and promptly return the enclosed
proxy card to ensure that your shares will be represented at the meeting.
If you attend the special meeting and wish to vote in person, you may
withdraw your proxy and do so.

      If you have any questions regarding the proposed transaction, please
call D.F. King & Co. Inc. our proxy solicitors, toll-free at 1-800-359-5559
or our investor relations department at (703) 872-5009.


                                          Very truly yours,



                                          Stephen M. Wolf
                                              Chairman



      This proxy statement is dated [August]   , 2000 and was first mailed to
US Airways stockholders on or about [August]   , 2000.





                           US AIRWAYS GROUP, INC.
                             2345 CRYSTAL DRIVE
                         ARLINGTON, VIRGINIA 22227
                          ------------------------

                 NOTICE OF SPECIAL MEETING OF STOCKHOLDERS
                      TO BE HELD ON [SEPTEMBER] , 2000
                          ------------------------

To the Stockholders of US Airways Group, Inc.:

      A special meeting of stockholders of US Airways Group, Inc. will be
held at 9:30 a.m., local time, on [September] , 2000, at [ ] , for the
purpose of considering and voting upon a proposal to adopt an Agreement and
Plan of Merger, dated as of May 23, 2000, among US Airways Group, Inc., UAL
Corporation and Yellow Jacket Acquisition Corp., as described in the
attached proxy statement. No other matters, except upon appropriate motion
a stockholder vote to adjourn the special meeting, may be brought before
the special meeting.

      The US Airways Board of Directors has fixed the close of business on
[August 21], 2000 as the record date for determining stockholders entitled
to notice of, and to vote at, the special meeting and any adjournment or
postponement of the meeting. A list of stockholders entitled to vote at the
special meeting will be available for examination at US Airways' principal
executive offices, during ordinary business hours, from [September] , 2000
until the meeting.

      If you do not vote to adopt the merger agreement and you follow the
procedural requirements of the Delaware General Corporation Law, you may
receive the fair cash value of your shares as appraised by the Delaware
Court of Chancery. See "Special Factors-Appraisal Rights of Stockholders"
in the attached proxy statement.

      You should not send any certificates representing common stock with
your proxy card.

      Whether or not you plan to attend the special meeting, you should
complete, sign, date and promptly return the enclosed proxy card to ensure
that your shares will be represented at the meeting. If you attend the
special meeting and wish to vote in person, you may withdraw your proxy and
vote in person.

                              By Order of the Board Directors

                              Jennifer C. McGarey
                              Secretary

Dated:  [August]   , 2000



                          TABLE OF CONTENTS

                                                                 Page

SUMMARY TERM SHEET..................................................1
      The Parties...................................................2
      The Special Meeting...........................................2
      The Merger....................................................3
      Additional Information........................................8

INFORMATION CONCERNING THE SPECIAL MEETING.........................10
      Date, Time and Place of the Special Meeting..................10
      Purpose of the Special Meeting...............................10
      Record Date; Quorum; Outstanding Common Stock Entitled
      to Vote......................................................10
      Voting Rights................................................10
      Voting and Revocation of Proxies.............................10
      Solicitation of Proxies......................................11
      Other Matters................................................11

SPECIAL FACTORS....................................................12
      Background of the Merger.....................................12
      Purpose of the Merger; Certain Effects of the Merger.........17
      Recommendations of the Board of Directors; Reasons for the
      Merger.......................................................17
      Opinion of Financial Advisor.................................21
      Certain Estimates Provided to UAL Corporation................30
      Interests of Certain Persons in the Merger...................32
      Merger Financing; Source of Funds............................35
      Certain United States Federal Income Tax Consequences........35
      Accounting Treatment.........................................36
      Appraisal Rights of Stockholders.............................36

THE MERGER AGREEMENT...............................................38
      The Merger...................................................38
      Representations and Warranties...............................39
      Certain Covenants............................................41
      Other Agreements of US Airways, UAL Corporation and Yellow
      Jacket Acquisition Corp......................................44
      No Solicitation of Transactions..............................45
      Employee Benefit Matters.....................................46
      Conditions to the Merger.....................................47
      Termination of the Merger Agreement..........................48
      Termination Fees ............................................49
      Expenses.....................................................50
      Amendment; Waiver............................................50

SUMMARY OF DC AIR..................................................50
      Competitive Presence in Washington, D.C......................50
      DC Air Asset Configuration and Transition Plan...............50

REGULATORY MATTERS.................................................52
      Antitrust Considerations.....................................52
      Department of Transportation ................................53
      Federal Aviation Administration .............................53
      European Communities Filing..................................53
      Other Regulatory Matters.....................................54

CERTAIN LITIGATION.................................................54

PARTIES TO THE MERGER..............................................54

SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT.....56

PRICE RANGE OF COMMON STOCK AND DIVIDENDS..........................58

CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING STATEMENTS..........58

OTHER INFORMATION..................................................59
      Proposals by Stockholders of US Airways......................59
      Where You Can Find More Information..........................59

APPENDIX A: Agreement and Plan of Merger..........................A-1
APPENDIX B: Opinion of Salomon Smith Barney Inc...................B-1
APPENDIX C: Appraisal Rights Under Delaware Law...................C-1



                             SUMMARY TERM SHEET

This summary term sheet does not contain all of the information that is
important to you. You should carefully read the entire proxy statement to
fully understand the merger agreement. The merger agreement is attached as
Appendix A to this proxy statement. We encourage you to read the merger
agreement, as it is the legal document that governs the merger.

THE PARTIES

US Airways Group, Inc.

o     We are incorporated under the laws of the State of Delaware. Our
      executive offices are located at 2345 Crystal Drive, Arlington,
      Virginia 22227. Our telephone number is (703) 872-7000.

o     We are a holding company and our principal operating subsidiary is US
      Airways, Inc., a Delaware corporation, which is wholly owned. US
      Airways, Inc. accounted for approximately 88% of our operating
      revenues on a consolidated basis in 1999. US Airways, Inc. is a
      certified air carrier engaged primarily in the business of
      transporting passengers, property and mail.

o     Our common stock is traded on the New York Stock Exchange under the
      symbol "U."

UAL Corporation

o     UAL Corporation is incorporated under the laws of the State of
      Delaware. The world headquarters of UAL Corporation are located at
      1200 East Algonquin Road, Elk Grove Township, Illinois 60007. UAL
      Corporation's mailing address is P.O. Box 66919, Chicago, Illinois
      60666. The telephone number for UAL Corporation is (847) 700-4000.

o     UAL Corporation is a holding company and its principal subsidiary is
      United Air Lines, Inc., a Delaware corporation, which is wholly
      owned. United Air Lines accounted for virtually all of UAL
      Corporation's revenues and expenses in 1999. United Air Lines is a
      major commercial air transportation company, engaged in the
      transportation of passengers, property and mail throughout the United
      States and abroad.

o     UAL Corporation's common stock is traded on the New York Stock
      Exchange under the symbol "UAL."

Yellow Jacket Acquisition Corp.

o     Yellow Jacket Acquisition Corp. was formed as a Delaware Corporation
      on May 17, 2000 by UAL Corporation for the purpose of entering into
      the merger agreement. Yellow Jacket Acquisition Corp. has not engaged
      in any business activity other than in connection with the merger and
      the related transactions.

THE SPECIAL MEETING OF STOCKHOLDERS

Date, Time and Place and Matters to be Considered (page 10)

o     The special meeting will be held at 9:30 a.m., local time, on
      [September]   , 2000, at [  ] . At the special meeting, you will be
      asked to consider and vote upon a proposal to adopt the merger
      agreement, a copy of which is attached hereto as Appendix A.

Record Date for Voting (page 10)

o     The close of business on [August 21], 2000 is the record date for
      determining holders of shares of our common stock entitled to vote at
      the special meeting. Each share of common stock will be entitled to
      one vote. On the record date, there were [ ] shares entitled to vote
      at the special meeting.

The Procedures relating to your Vote at the Meeting; Appraisal Rights
(pages 10-11, 35):

o     You should complete, date and sign your proxy card and mail it in the
      enclosed return envelope as soon as possible so that your shares may
      be represented at the special meeting, even if you plan to attend the
      meeting in person. Unless contrary instructions are indicated on your
      proxy, all of your shares represented by valid proxies will be voted
      FOR the adoption of the merger agreement.

o     For those participants who hold shares in the US Airways, Inc.
      Employee Stock Ownership Plan, the US Airways, Inc. Employee Savings
      Plan, the US Airways, Inc. 401(k) Savings Plan or the Supplemental
      Retirement Plan of Piedmont Aviation, Inc., you should fill in and
      sign your proxy card and mail it in time to be received no later than
      [September ___], 2000 in order to be voted in a timely manner by the
      administrator of these plans. In accordance with these plans, you may
      not vote these shares in person at the special meeting.

o     If your shares are held in "street name" by your broker, your broker
      will vote your shares only if you provide instructions on how to
      vote. You should follow the procedures provided by your broker
      regarding the voting of your shares.

o     You are entitled to exercise appraisal rights in connection with the
      merger. If you elect to exercise appraisal rights, you must deliver
      to us, before the stockholder vote to adopt the merger agreement is
      taken, written notice of your intent to demand appraisal of your
      shares if the merger is completed, and you must not vote to adopt the
      merger agreement. Neither a failure to vote on the merger agreement,
      nor an abstention from voting on the merger agreement, will be
      construed as a vote to adopt the merger agreement. However, if you
      return your signed proxy left blank, your vote will be counted in
      favor of the merger agreement, and you will waive your appraisal
      right.

o     In order for the merger to be consummated the merger agreement must
      be adopted by the affirmative vote of the holders of a majority of
      the outstanding shares of our common stock. If you do not send in
      your proxy or do not instruct your broker to vote your shares or if
      you abstain from voting, it will have the same effect as a vote
      against the merger.

o You can revoke your proxy and change your vote in any of the following
ways:

      o     deliver to our Secretary at our executive offices, 2345 Crystal
            Drive, Arlington, Virginia 22227, on or before the business day
            prior to the special meeting, a later-dated, signed proxy card
            or a written revocation.

      o     deliver a later-dated, signed proxy card or a written
            revocation to us at the special meeting.

      o     attend the special meeting and vote in person. Your attendance
            at the meeting will not, by itself, revoke your proxy.

      o     if you have instructed a broker to vote your shares, you must
            follow the directions received from your broker to change those
            instructions.

      o     if you hold your shares in the employee plans of our company or
            our subsidiaries, instructions cannot be revoked after
            [September ___], 2000.

o     Please do not send us any of your stock certificates at this time. If
      the merger is completed, we will send you written instructions for
      exchanging your stock certificates for the merger consideration.

THE MERGER

What You will Receive in the Merger

o     You will receive $60.00 per share in cash in exchange for each share
      of our common stock that you own. The merger price represents a 130%
      premium over the $26.31 per share closing price of our common stock
      on May 23, 2000, the last trading day before we announced the signing
      of the merger agreement.

Background of the Merger; Reasons for the Merger (pages 12-17)

o     For a description of the events leading to the approval of the merger
      by the Board and the reasons for such approval, you should refer to
      "Special Factors -- Background of the Merger" and "-- Recommendation
      of the Board of Directors; Reasons for the Merger."

Purpose of the Merger; Certain Effects of the Merger (page 17)

o     The principal purpose of the merger is to enable UAL Corporation, the
      parent corporation of United Air Lines, Inc., to own all of the
      equity interests in our company and provide you the opportunity to
      receive a cash price for your shares at a significant premium over
      the market prices at which the common stock traded before
      announcement of the merger agreement.

o     The merger will terminate all equity interests in our company held by
      public stockholders, and UAL Corporation will be the sole beneficiary
      of any earnings and growth of our company following the merger.

o     Upon completion of the merger, our common stock will be delisted from
      the New York Stock Exchange and will no longer be publicly traded.

Recommendation of the Board (pages 17-21)

o     The Board has determined that the merger agreement and the merger are
      advisable and are fair to you and in your and our best interests and
      recommends that you vote "FOR" adoption of the merger agreement. In
      making this determination, the Board took into account, among other
      things, the oral opinion (which was subsequently confirmed in
      writing) dated May 23, 2000 of our financial advisor Salomon Smith
      Barney Inc. that, as of that date and on the basis of and subject to
      the matters reviewed with the Board, the $60.00 per share to be
      received by you in the merger was fair to you from a financial point
      of view.

Opinions of Salomon Smith Barney Inc. (pages 21-29)

o     Salomon Smith Barney Inc. delivered an oral opinion (which was
      subsequently confirmed in writing) dated May 23, 2000 to the Board
      that, as of that date and on the basis of and subject to the matters
      reviewed with the Board, the consideration to be received by you in
      the merger was fair to you from a financial point of view. We have
      attached a copy of the opinion as Appendix B to this proxy statement.

o     The opinion of Salomon Smith Barney Inc. is addressed to the Board,
      does not address any other aspect of the merger and does not
      constitute a recommendation as to how you should vote at the special
      meeting.

Interests of Certain Persons in the Merger (pages 31-34)

o     In considering the recommendation of the Board of Directors with
      respect to the merger, stockholders should be aware that the
      executive officers and directors of the Company have some interests
      in the merger that may be different from, or in addition to, the
      interests of stockholders generally. Specifically, (1) each of our
      executive officers is party to an employment or severance agreement
      with us which provides for certain benefits upon certain terminations
      of employment following the date of stockholder approval of the
      merger, (2) upon consummation of the merger, each executive officer
      will receive a cash payment with respect to each three-year
      performance cycle then outstanding under our Long Term Incentive
      Plan, (3) the annual retirement benefit payable pursuant to
      supplemental pension agreements we have entered into with certain of
      our executive officers will increase if the merger is consummated,
      (4) unvested stock options held by our executive officers will become
      vested and exercisable upon stockholder approval of the merger and
      (5) certain shares of restricted stock held by executive officers
      will vest at various times at or prior to consummation of the merger.
      The Board of Directors was aware of these interests and considered
      them, among other matters, in making its recommendation. See
      "Interests of Certain Persons in the Merger".

Merger Financing; Source of Funds (page 34)

o     UAL Corporation has informed us that the aggregate merger
      consideration of approximately $4.28 billion to be paid to our
      stockholders (assuming that no stockholders perfect their appraisal
      rights under Delaware law) will be financed through existing and new
      debt facilities and cash on hand. UAL Corporation believes that it
      will be able to obtain any new debt facilities needed to finance the
      merger.

Conditions to the Merger (pages 46-47)

o     Each party's obligation to complete the merger is subject to a number
      of conditions, including the following:

      o     adoption by our stockholders of the merger agreement;

      o     the absence of any law, order or injunction prohibiting the
            merger; and

      o     the expiration or termination of the waiting period under the
            Hart-Scott-Rodino Act and the receipt of any other necessary
            approvals or clearances under applicable competition, merger
            control, antitrust or similar law or regulation.

o     The obligations of UAL Corporation and Yellow Jacket Acquisition Corp.
      to complete the merger are subject to certain additional conditions,
      including the following:

      o     the absence of any legal restraint that has the effect of (i)
            prohibiting or limiting in any material respect the ownership
            or operation of a material portion of our or UAL Corporation's
            business, (ii) prohibiting UAL Corporation from controlling in
            any material respect a substantial portion of our business or
            operations or (iii) imposing material limitations on UAL
            Corporation's ability to acquire, hold or exercise full rights
            of ownership of shares of our common stock; and

      o     we or UAL Corporation having obtained (i) all material
            consents, approvals or authorizations of governmental entities
            legally required in connection with the merger agreement or the
            transactions contemplated by the merger agreement and (ii) all
            other governmental or third party consents, approvals or
            authorizations required in connection with the merger
            agreement, except, in the case of clause (ii), for those the
            failure of which to be obtained would not be expected to have a
            material adverse effect on us or prevent or materially impede
            or delay consummation of the merger.

o     The obligations of UAL Corporation and Yellow Jacket Acquisition
      Corp. to complete the merger are not subject to a financing condition
      or any additional corporate proceedings by UAL Corporation or Yellow
      Jacket Acquisition Corp., including the approval of their
      stockholders.

Regulatory Filings and Approvals (pages 51-53)

o     We must make filings with and receive approvals of various federal
      and foreign regulatory agencies before the merger can be completed.
      At the federal level, filings must be made with, and approvals must
      be obtained from, the Department of Transportation and the Federal
      Aviation Administration and the waiting period under the
      Hart-Scott-Rodino Act must have either expired or been terminated.
      The parties are also required to obtain approval of the transaction
      from the European Commission.

o     Both we and UAL Corporation have received inquiries from a number of
      state antitrust authorities and are cooperating with their
      investigations. While no formal state approvals are required, as is
      the case with other private litigants, the state authorities have the
      capacity to seek judicial injunctions under the federal antitrust
      laws.

o     We believe that efforts sufficient to satisfy the requisite
      regulatory requirements can be concluded on or before January 1, 2001
      and, assuming the merger agreement is adopted by the holders of a
      majority of our outstanding shares of common stock, the transaction
      will be consummated promptly following satisfaction of such
      regulatory requirements. However, we cannot assure you that such
      requirements will be satisfied or, if satisfied, the date by which
      they will be satisfied.

Termination of the Merger Agreement (pages 47-48)

o     The merger agreement may be terminated, whether before or after
      receiving stockholder approval, without completing the merger, under
      certain circumstances, including the following:

      o     by mutual consent of the parties;

      o     by us or UAL Corporation if the merger is not consummated by
            December 31, 2000; provided, however, that either party may
            extend this deadline to August 1, 2001 if, by December 31,
            2000, all conditions to consummation of the merger are
            fulfilled, except the adoption of the merger agreement by our
            stockholders, the receipt of regulatory approvals or consents
            or the absence of a legal restraint;

      o     by us or UAL Corporation if any law or court order prohibiting
            the merger becomes final and cannot be appealed, so long as a
            breach by the party seeking to terminate is not the principal
            reason for such event having occurred;

      o     by us or UAL Corporation if our stockholders do not adopt the
            merger agreement;

      o     by UAL Corporation if our Board withdraws or modifies, in a
            manner adverse to UAL Corporation, the Board's recommendation
            or declaration of the advisability of the merger agreement or
            the merger or recommends an alternative transaction;

      o     by UAL Corporation if (A) any legal restraint shall have become
            final and nonappealable that has the effect of (i) prohibiting
            or limiting in any material respect the ownership or operation
            of a material portion of the business of US Airways or UAL
            Corporation, (ii) prohibiting UAL Corporation from controlling
            in any material respect a substantial portion of the business
            or operations of US Airways or (iii) imposing material
            limitations on UAL Corporation's ability to acquire, hold or
            exercise full rights of ownership of shares of our common stock
            and (B) a breach by UAL Corporation is not the primary reason
            that such event occurred; or

      o     by us, at any time prior to obtaining stockholder approval, in
            response to an unsolicited bona fide binding written offer made
            by a third party to acquire more than 50% of our common stock
            or all or substantially all our assets for consideration that
            our Board determines in its good faith judgment to be superior
            for our stockholders, provided that we have complied in all
            material respects with the no solicitation covenant of the
            merger agreement and we have paid the applicable termination
            fee and expense reimbursement amount to UAL Corporation and we
            concurrently enter into an acquisition agreement with a third
            party.

Termination Fee Payable to UAL Corporation (page 48)

o     We are required to pay to UAL Corporation a termination fee of $150
      million, plus up to a maximum of $10 million for reimbursement of UAL
      Corporation's expenses, if:

o     the merger agreement is terminated under circumstances where:

   -- the termination was due to (i) our stockholders failing to adopt the
      merger or (ii) the merger agreement failing to be completed by the
      applicable termination date;

   -- prior to such termination, a third party made a proposal to acquire
      20% or more of our common stock or a business constituting 20% or
      more of our total revenue, operating income, earnings before
      interest, taxes, depreciation and amortization (EBITDA) or assets;
      and

   -- within 12 months of such termination, we consummate or enter into an
      agreement with a third party providing for the acquisition of 40% or
      more of our common stock or a business constituting 40% or more of
      our total revenue, operating income, earnings before interest, taxes,
      depreciation and amortization (EBITDA) or assets;

   o  the merger agreement is terminated by UAL Corporation because our
      Board withdraws or modifies, in a manner adverse to UAL Corporation,
      its recommendation or declaration of the advisability of the merger
      agreement or the merger or recommends any alternative transaction; or

   o  the merger agreement is terminated by us in response to an
      unsolicited bona fide binding written offer made by a third party to
      acquire more than 50% of our common stock or all or substantially all
      our assets for consideration that our Board determines in its good
      faith judgment to be superior for our stockholders.

Termination Fee Payable to US Airways (pages 48-49)

o     UAL Corporation is required to pay us a termination fee of $50
      million in the event the merger agreement is terminated for any
      reason other than (i) our Board's withdrawal or modification, in a
      manner adverse to UAL Corporation, of its recommendation or
      declaration of the advisability of the merger agreement or the merger
      or recommendation of an alternative transaction, (ii) our material
      breach of our representations, warranties, or covenants, or (iii) our
      termination in response to an unsolicited binding written offer made
      by a third party for consideration that our Board determines in its
      good faith judgment to be superior to our stockholders. This fee will
      have to be repaid by us to UAL Corporation if subsequent to such
      termination, UAL Corporation becomes entitled to receive a
      termination fee as described above under "- Termination Fee Payable
      to UAL Corporation."

Certain United States Federal Income Tax consequences (pages 34-35)

o     The receipt of cash for shares pursuant to the merger will be a
      taxable transaction for United States federal income tax purposes and
      possibly for state, local and foreign income tax purposes as well. In
      general, a stockholder who receives cash in exchange for shares
      pursuant to the proposed merger will recognize gain or loss for
      United States federal income tax purposes equal to the difference, if
      any, between the amount of cash received and the stockholder's
      adjusted tax basis in the shares exchanged for cash pursuant to the
      merger. If the shares exchanged constitute capital assets in the
      hands of the stockholder, such gain or loss will be capital gain or
      loss. In general, capital gains recognized by an individual will be
      subject to a maximum United States federal income tax rate of 20% if
      the shares were held for more than one year, and if held for one year
      or less they will be subject to tax at ordinary income tax rates. You
      should consult your tax advisor as to the tax consequences to you of
      the merger in your particular circumstances.

ADDITIONAL INFORMATION

o     If you have additional questions about the merger or would like
      additional copies of the proxy statement, you should call our proxy
      solicitors, D.F. King & Co. Inc., toll-free at (800) 359-5559 or our
      investor relations department at (703) 872-5009.


                 INFORMATION CONCERNING THE SPECIAL MEETING

DATE, TIME AND PLACE OF THE SPECIAL MEETING

      This proxy statement is furnished to you in connection with the
solicitation of proxies by our Board of Directors for the meeting of
stockholders to be held at 9:30 a.m., local time, on [September] , 2000, at
[ ], or any postponement or adjournment of the meeting. This proxy
statement, the Notice of Special Meeting and the accompanying form of proxy
card are first being mailed to stockholders on or about [August] , 2000.

PURPOSE OF THE SPECIAL MEETING

      At the special meeting, you will be asked to consider and vote upon a
proposal to adopt the merger agreement.

RECORD DATE; QUORUM; OUTSTANDING COMMON STOCK ENTITLED TO VOTE

      All record holders of shares of our common stock at the close of
business on [August 21], 2000 are entitled to notice of, and to vote at,
the special meeting. The presence, in person or by proxy, of holders of a
majority of the outstanding shares of common stock is required to
constitute a quorum for the transaction of business. A list of record
holders will be available for examination at our principal executive
offices from [September] , 2000 until the special meeting. At the close of
business on July 31, 2000, there were 67,060,505 shares of US Airways
common stock outstanding.

VOTING RIGHTS

      You are entitled to one vote for each share of common stock that you
held as of the close of business on the record date. The affirmative vote
of the holders of a majority of the outstanding shares of our common stock
is required to adopt the merger agreement. Under Delaware law, in
determining whether adoption of the merger agreement has received the
requisite number of affirmative votes, abstentions and broker non-votes
will have the same effect as a vote against adoption of the merger
agreement.

VOTING AND REVOCATION OF PROXIES

      A form of proxy card for your use at the special meeting accompanies
this proxy statement. Subject to the following sentence, all properly
executed proxies that are received prior to or at the special meeting and
not revoked will be voted at the special meeting in the manner specified.
If you hold shares in the US Airways, Inc. Employee Stock Ownership Plan,
the US Airways, Inc. Employee Savings Plan, the US Airways, Inc. 401(k)
Savings Plan or the Supplemental Retirement Plan of Piedmont Aviation,
Inc., your proxies must be received no later than [September _____], 2000,
in order to be voted in a timely manner by the administrator of these
plans. If you execute and return a proxy and do not specify otherwise, the
shares represented by your proxy will be voted "FOR" adoption of the merger
agreement in accordance with the recommendation of the Board. In that
event, you will not have the right to dissent from the merger and seek an
appraisal of the fair value of your shares.

      If you have given a proxy pursuant to this solicitation, you may
nonetheless revoke it by attending the special meeting and voting in
person. In addition, you may revoke any proxy you give at any time before
the special meeting by delivering to our Secretary at our executive
offices, on or before the business day prior to the special meeting, or at
the special meeting itself, a written statement revoking it or a duly
executed proxy bearing a later date. If you hold your shares in the
employee plans of our company or our subsidiaries, you may not vote these
shares in person at the special meeting. In addition, if you hold your
shares in these plans, after [September____], 2000, your instructions with
respect to these shares may not be revoked. If you have executed and
delivered a proxy to us, your attendance at the special meeting will not in
and of itself constitute a revocation of your proxy. If you vote in favor
of adopting the merger agreement, you will not have the right to dissent
and seek appraisal of the fair value of your shares. If you do not send in
your proxy or do not instruct your broker to vote your shares or if you
abstain from voting, it will have the same effect as a vote against the
adoption of the merger agreement.

SOLICITATION OF PROXIES

      We will bear the cost of the solicitation of proxies. We will solicit
proxies initially by mail. Further solicitation may be made by our
directors, officers and employees personally, by telephone or otherwise,
but they will not be specifically compensated for these services. Upon
request, we will reimburse brokers, dealers, banks or similar entities
acting as nominees for their reasonable expenses incurred in forwarding
copies of the proxy materials to the beneficial owners of the shares of
common stock they hold of record. We have retained D.F. King & Co. Inc. to
coordinate the solicitation of proxies for a fee of $17,500.

OTHER MATTERS

      Except for the vote on the merger agreement, and upon appropriate
motion, an adjournment of the special meeting, no other matters may come
before the special meeting.

      Your vote is important. Please return your marked proxy card promptly
so your shares can be represented at the meeting, even if you plan to
attend the meeting in person.

      You should not send any certificates representing common stock with
your proxy card. If we complete the merger, the procedure for the exchange
of certificates representing common stock will be as described on page 36
of this proxy statement.


                           SPECIAL FACTORS

BACKGROUND OF THE MERGER

      Representatives of US Airways have from time to time engaged in
discussions with representatives of other airlines, including UAL
Corporation, regarding possible strategic transactions. At a business
meeting in the fall 1999, Mr. James E. Goodwin, Chairman and Chief
Executive Officer of UAL Corporation, informed Mr. Stephen M. Wolf, our
Chairman, that UAL Corporation might be interested in commencing
discussions regarding the possible acquisition of our company by UAL
Corporation. No further substantive communications occurred until early
February 2000, when Mr. Goodwin informed Mr. Wolf that UAL Corporation was
prepared to commence discussions regarding a potential acquisition of our
company. Mr. Goodwin also indicated an interest in engaging in discussions
with Tiger Management L.L.C., Tiger Performance L.L.C. and Mr. Julian H.
Robertson (collectively, "Tiger Management"), each of whom is a stockholder
of our company and collectively hold a substantial economic and voting
interest in our company.

      On February 17, 2000, we entered into a confidentiality agreement
with Tiger Management. Following execution of the confidentiality
agreement, our representatives discussed with representatives of Tiger
Management the content of our preliminary discussions with representatives
of UAL Corporation regarding a potential acquisition of our company.

      On March 3, 2000, we entered into a confidentiality agreement with
UAL Corporation which provided, among other things, that certain
information disclosed by either party would be held by the other party and
its representatives in strict confidence and that the parties would
negotiate exclusively with each other for a period of up to six weeks with
respect to a possible business combination transaction. The decision to
engage in exclusive negotiations with UAL Corporation was based on our view
that UAL Corporation was very interested in entering into a business
combination transaction with us, that UAL Corporation would not have
engaged in negotiations with us on other than an exclusive basis, that
there were limited alternative prospects and that, if a definitive
agreement was reached, the definitive agreement would provide that other
interested parties would have an opportunity to make a superior proposal
for a business combination transaction. Tiger Management agreed to be bound
by the terms of the confidentiality agreement between us and UAL
Corporation.

      On March 4, 2000, UAL Corporation delivered to us a transaction term
sheet that outlined the preliminary terms and structure of the transaction
contemplated by UAL Corporation. The term sheet contemplated, among other
things, a one-step all cash merger at a price per share that was not
identified and provisions with respect to the following:

      o     efforts to be taken by UAL Corporation to obtain antitrust
            clearance for the merger, including the divestiture of certain
            of our assets located at Reagan Washington National Airport;

      o     the grant of an option to UAL Corporation to acquire the US
            Airways Shuttle business and certain unspecified slots in the
            event the merger agreement was terminated under circumstances
            where UAL Corporation is entitled to receive a termination fee
            and a takeover proposal relating to our company made prior to
            the date that is 18 months after the termination of the merger
            agreement is consummated;

      o     restrictions on our ability to solicit or negotiate with other
            potential acquirors unless we receive a third party proposal
            reasonably likely to lead to a proposal for the acquisition of
            our company for consideration consisting of cash and/or
            securities that the Board determined to be of higher value than
            the consideration to be paid in the merger;

      o     our right to terminate an acquisition agreement with UAL
            Corporation, subject to certain restrictions, in order to enter
            into an acquisition transaction with a third party that
            provided for consideration of higher value than that payable in
            the merger;

      o     a termination fee of 3.5% of the equity value of our company
            and expenses of up to $10,000,000 to be paid to UAL Corporation
            if (i) we terminated the agreement to enter into an acquisition
            proposal providing higher value, (ii) UAL Corporation
            terminated the agreement as a result of our Board's failure to
            confirm its recommendation or (iii) following the making of a
            third party acquisition proposal, the agreement was terminated
            for failure to obtain stockholder approval or failure to close
            by September 30, 2001, and we entered into an agreement for, or
            consummated, an acquisition proposal within 18 months of such
            termination;

      o     covenants with respect to the conduct of our business in the
            ordinary course and restricting our ability to issue or
            repurchase securities, make or exercise options with respect to
            new aircraft orders, acquire or dispose of assets, incur or
            repay debt or make changes to executive compensation;

      o     the right of the parties to terminate (i) on or after September
            30, 2001 if the merger had not been consummated, (ii) if
            stockholder approval is not obtained or (iii) if any permanent
            legal restraint prohibits the merger;

      o     conditions to each of the parties' obligations to proceed with
            the merger including, among others, termination of antitrust
            waiting periods, receipt of the approval of our stockholders
            and the absence of a material adverse effect.

      The term sheet also contemplated UAL Corporation entering into a
stockholder agreement with Tiger Management pursuant to which Tiger
Management would vote in favor of the proposed merger and take various
other actions in support of the proposed merger. Concurrent with its
discussions with us, representatives of UAL Corporation also engaged in
preliminary discussions with representatives of Tiger Management about the
proposed transaction and the possibility of entering into a stockholder
agreement with Tiger Management upon the terms described above. In addition
to the matters identified in the transaction term sheet, UAL Corporation
proposed a plan for integrating the pilot groups of both companies.

      In order to facilitate further discussions between the parties,
beginning in mid-March 2000, we began providing UAL Corporation and its
legal counsel with certain confidential information regarding our company
for use in connection with its due diligence review.

      On March 30, 2000, UAL Corporation delivered drafts of the merger
agreement, a stockholder agreement with Tiger Management and the option
agreements involving the US Airways Shuttle and an unspecified group of
slots. The merger agreement delivered on March 30, 2000 contained terms
which were consistent in all material respects with the terms set forth in
the transaction term sheet delivered to us by UAL Corporation on March 4,
2000, the terms of which are summarized on page 12 above. In addition, the
merger agreement delivered on such date contained representations and
warranties, covenants and other provisions with respect to us and our
subsidiaries similar to such provisions which are often included in
transactions of this type.

      On March 31, 2000, we and UAL Corporation entered into an agreement
to extend the term of the exclusivity provision of the confidentiality
agreement from April 14, 2000, the scheduled termination date, through May
15, 2000.

      During March and April 2000, we and UAL Corporation held a number of
meetings to discuss the terms of the proposed transaction documents and
exchanged various drafts and redrafts of the proposed merger agreement. The
negotiations during this period highlighted significant issues for both
parties. In particular, the following issues were among those discussed
and, in some cases, remained open up until a day or two before the merger
agreement was signed:

      o     the price per share that would be paid by UAL Corporation,
            which it was understood would be at a premium to the then
            current market price of our shares, but without reference to a
            specific amount;

      o     the composition of the assets that UAL Corporation would agree
            to divest and the level of efforts that would have to be taken
            by UAL Corporation to obtain regulatory approval for the
            transaction;

      o     the grant of an option to UAL Corporation to purchase assets
            relating to the US Airways Shuttle and certain unspecified
            slots if the merger is not consummated under certain
            circumstances, which option was not included in the final terms
            of the transaction documents;

      o     restrictions on our ability to solicit or entertain competing
            proposals and the fiduciary exceptions applicable to such
            restrictions;

      o     the amount of a termination fee to be paid to UAL Corporation
            in the event the transaction is not consummated under certain
            circumstances;

      o     the payment of a termination fee to us in the event that the
            transaction is not consummated under certain circumstances;

      o     the pre-merger operating covenants applicable to us;

      o     the outside termination date after which either party may
            terminate the merger agreement if the merger is not
            consummated;

      o     the integration of the pilot groups of both companies; and

      o     provisions relating to the treatment of our employees during
            the period prior to, and following, the merger.

      In addition, during this period the parties discussed various other
matters, including a public commitment by UAL Corporation that for a
certain period following the merger it would not increase United States
point-to-point structure fares (subject to certain exceptions) or reduce
domestic standard base travel agency commission rates.

      Representatives of UAL Corporation also engaged in discussions with
representatives of Tiger Management during this period.

      During discussions among our senior management regarding the
disposition of the assets contemplated to be divested by UAL Corporation
upon consummation of the merger, it was suggested that Mr. Robert Johnson,
who is a successful Washington business person, be approached to determine
if he would be interested in purchasing these assets. Mr. Johnson also is a
member of our Board. In mid-April 2000, Mr. Wolf inquired of Mr. Johnson as
to whether he would consider acquiring certain of our assets located at the
Reagan Washington National Airport that would be divested by UAL
Corporation if the proposed acquisition of our company by UAL Corporation
is consummated. Mr. Johnson agreed to consider the acquisition and informed
Mr. Wolf that he would engage his advisors to review the feasibility of
such an acquisition. Shortly thereafter, we informed UAL Corporation of Mr.
Johnson's interest.

      On April 24, 2000, a meeting of our Board of Directors was held at
which the Board was informed by management of the status of negotiations
with UAL Corporation and the open issues that remained to be resolved
between the parties and was apprised by its outside corporate counsel,
Skadden, Arps, Slate, Meagher & Flom LLP, of its fiduciary duties with
respect to its review of the proposed transaction. Previously, Mr. Wolf had
held discussions concerning the merger with directors who are members of
the Executive Committee of the Board.

      Commencing in early May, 2000, drafts of a memorandum of
understanding among UAL Corporation, Mr. Johnson and us were provided that
set forth the terms of a proposed sale, to an entity to be established by
Mr. Johnson, of certain assets expected to be divested by UAL Corporation
in connection with consummation of the merger, including a description of
certain related matters. The parties engaged in extensive negotiations with
respect to the terms of the memorandum of understanding over the course of
the following weeks.

      Our representatives met with representatives of UAL Corporation on
several occasions in early May 2000, to try to resolve the remaining open
issues regarding the transaction documents. Also during this time, Mr. Wolf
and other representatives of our company engaged in discussions with
representatives of Tiger Management regarding issues between UAL
Corporation and Tiger Management with respect to the stockholder agreement.
These issues principally involved the terms under which Tiger Management
and UAL Corporation would have shared any consideration received by Tiger
Management in a business combination transaction involving US Airways in
excess of the consideration to be paid in the merger with UAL Corporation.

      The final negotiations were scheduled for the weekend of May 20,
2000, at which time UAL Corporation was not able to reach an agreement with
Tiger Management regarding the terms of the stockholder agreement. As a
result, on May 22, 2000, UAL Corporation terminated discussions with Tiger
Management and determined to proceed with the transaction with us without
entering into a separate stockholder agreement with Tiger Management.

      One of the issues resolved on May 22, 2000 was the price per share
that would be paid by UAL Corporation to our stockholders in connection
with the merger. Although there had been earlier discussions between the
parties that contemplated higher and lower per share prices to our
stockholders, following the failure of UAL Corporation to secure a
stockholder agreement with Tiger Management, the parties agreed to a per
share transaction price of $60.00.

      Also during the weekend of May 20, 2000, we, UAL Corporation, and Mr.
Johnson reached agreement on the terms of a memorandum of understanding
with respect to the acquisition by an entity to be established by Mr.
Johnson of certain assets located at Reagan Washington National Airport
that are to be divested by UAL Corporation upon consummation of the merger.

      A meeting of our Board of Directors was held on Tuesday, May 23,
2000, to review the terms of the proposed transaction. At the meeting, the
Board received presentations from management regarding the transaction and
its effects on us, our stockholders, our employees and the communities and
customers we serve, the advice of its legal counsel regarding the structure
of the transaction and the Board's fiduciary duties, and an oral opinion
(which was subsequently confirmed in writing) of Salomon Smith Barney Inc.,
our financial advisor, that, as of that date and on the basis of and
subject to the matters reviewed with the Board, the $60.00 per share offer
price was fair from a financial point of view to our stockholders. The
Board, with the benefit of the foregoing presentations and advice, having
deliberated regarding the terms of the proposed transaction, unanimously
(with Mr. Johnson abstaining) determined that the merger agreement and the
merger are advisable and are fair to and in the best interest of us and our
stockholders and unanimously (with Mr. Johnson abstaining) approved the
merger agreement, the merger and the transactions contemplated thereby. The
Board also unanimously (with Mr. Johnson abstaining) approved the
memorandum of understanding with Mr. Johnson. Mr. Johnson, having an
interest in the disposition of certain assets at the Reagan Washington
National Airport in connection with the merger and related transactions,
abstained from voting on the merger, the merger agreement, the memorandum
of understanding and related matters presented to the Board.

      On the evening of May 23, 2000, we and UAL Corporation executed the
agreement and plan of merger and we, UAL Corporation, and Mr. Johnson
executed the memorandum of understanding. We and UAL Corporation issued a
press release regarding the execution of the transaction documents on the
morning of May 24, 2000 and conducted a joint press conference regarding
the transaction on the same morning.

PURPOSE OF THE MERGER; CERTAIN EFFECTS OF THE MERGER

      The principal purpose of the merger is to enable UAL Corporation to
own all of the equity interest in US Airways and afford our public
stockholders the opportunity to receive a cash price for their shares that
represents a significant premium over the market price at which the shares
traded prior to the announcement of the merger. This will be accomplished
by a merger of Yellow Jacket Acquisition Corp., a corporation formed by UAL
Corporation, parent company of United Air Lines, Inc., with and into US
Airways, with US Airways as the surviving corporation. In the merger, all
of the shares of US Airways common stock held by our stockholders (other
than US Airways, UAL Corporation and Yellow Jacket Acquisition Corp. and
other than dissenting stockholders who perfect their appraisal rights) will
be converted into the right to receive the cash merger consideration of
$60.00 per share.

      The merger will terminate all equity interests in US Airways held by
stockholders and UAL Corporation will be the sole beneficiary of any
earnings and growth of US Airways following the merger. Our common stock is
currently registered under the Securities Exchange Act of 1934 and is
listed for trading on the New York Stock Exchange under the symbol "U".
Upon the completion of the merger, our common stock will be delisted from
the exchange and registration of our common stock under the Exchange Act
will be terminated.

RECOMMENDATIONS OF THE BOARD OF DIRECTORS; REASONS FOR THE MERGER

      RECOMMENDATIONS OF THE BOARD OF DIRECTORS

      On May 23, 2000, the Board determined that the terms of the merger
agreement and the merger are advisable and are fair to and in the best
interests of us and our stockholders and approved the merger agreement and
the merger. Accordingly, the Board recommends that our stockholders vote
"FOR" the adoption of the merger agreement.

      REASONS FOR THE MERGER

      In determining to approve and recommend the merger, and in reaching
its determination that the merger agreement and the merger are advisable
and are fair to and in the best interests of us and our stockholders, the
Board of Directors consulted with US Airways' executive officers and our
financial and legal advisors, and considered a number of favorable and
unfavorable characteristics associated with the merger agreement and the
transactions contemplated thereby. In reaching its decision, the Board of
Directors considered the following potentially positive factors:

      o     our knowledge of the current, and our beliefs about the
            prospective, environment in which we operate, including
            domestic and global economic conditions, volatility of and
            competition in the airline industries and the impact of these
            factors on our opportunities as a stand-alone entity and the
            uncertainty that we could achieve a greater value as an
            independent entity;

      o     the strategic options available to us and the Board's
            assessment that none of these options were reasonably likely to
            present superior opportunities, or were reasonably likely to
            create greater value for our stockholders, than the prospects
            presented by the merger;

      o     the fact that the merger consideration on a per share basis
            represented a significant premium over recently prevailing
            market prices of our common stock;

      o     the oral opinion of Salomon Smith Barney Inc. given to the
            Board on May 23, 2000 (and subsequently confirmed in writing)
            that, as of that date and on the basis of and subject to the
            matters reviewed with the Board, the $60.00 per share merger
            consideration was fair from a financial point of view to our
            stockholders;

      o     the terms of the merger and the merger agreement as negotiated,
            including:

            (1)   the $60.00 per share cash merger consideration;

            (2)   the agreement by UAL Corporation to divest certain assets
                  located at Reagan Washington National Airport and to make
                  certain efforts to obtain antitrust approval, including
                  all reasonable efforts to take all actions that are
                  necessary, proper or advisable to consummate the merger;

            (3)   the absence of any option in favor of UAL Corporation to
                  acquire our shuttle business or any of our slots in the
                  event the merger agreement is terminated;

            (4)   the absence of a condition to the consummation of the
                  merger relating to the integration of the pilot groups of
                  both companies;

            (5)   our ability to entertain other potential acquisition
                  proposals if certain conditions are satisfied, including
                  that the acquisition proposal is unsolicited and involves
                  consideration that the Board determines in its good faith
                  judgment to be superior from a financial view to
                  stockholders than the consideration to be paid in the
                  merger;

            (6)   our right to terminate the merger agreement prior to
                  obtaining stockholder approval in order to enter into an
                  acquisition transaction with a third party that provides
                  for consideration that the Board determines in its good
                  faith judgment to be superior from a financial view to
                  stockholders than that payable in the merger;

            (7)   the ability of the Board to change its recommendation if
                  it determines in good faith, based on such matters as it
                  deems appropriate, after consulting with legal counsel,
                  that the failure to take such action would be reasonably
                  likely to result in a breach of its fiduciary duties
                  under applicable law;

            (8)   the $50,000,000 termination fee payable by UAL
                  Corporation if the merger agreement is terminated under
                  certain circumstances more fully described in the section
                  entitled "Summary of the Merger Agreement- Termination
                  Fees" on page 48;

            (9)   the provisions concerning attraction and retention of
                  employees prior to the merger;

            (10)  the right of the parties to terminate the merger
                  agreement (a) on December 31, 2000 if the merger is not
                  consummated, which deadline may be extended to August 1,
                  2001 by either party if all conditions other than the
                  adoption of the merger agreement by our stockholders, the
                  receipt of regulatory approval or consents or the absence
                  of a legal restraint, have been fulfilled by December 31,
                  2000 or (b) if stockholder approval is not obtained or if
                  any legal restraint prohibiting the merger becomes final
                  and cannot be appealed;

            (11)  the conditions of each of the parties obligations to
                  complete the merger, including the expiration or
                  termination of antitrust waiting periods, the receipt of
                  the approval of our stockholders and the absence of a
                  material adverse effect; and

            (12)  the agreement by UAL Corporation to offer continued
                  employment to all of our and our subsidiaries' employees
                  (other than officers) for two years following the merger,
                  subject to certain exceptions.

      o     the fact that a stockholder agreement was not entered into
            between Tiger Management, our largest stockholder, and UAL
            Corporation creating a greater opportunity for a third party to
            present a proposal which is superior to our stockholders;

      o     the terms of the memorandum of understanding among us, Mr.
            Johnson and UAL Corporation which the Board believes, based on
            the creation of a new air carrier by Mr. Johnson in connection
            with the acquisition by an entity to be formed by Mr. Johnson
            of certain assets located at Reagan Washington National Airport
            that are to be divested by UAL Corporation upon the
            consummation of the merger, would significantly enhance the
            probability that the merger would receive regulatory approval;

      o     the decision by UAL Corporation to announce that it would not
            increase United States point-to-point structure fares for two
            years following the merger, with exceptions only for increases
            in fuel costs and consumer price index, and that it would not
            reduce domestic standard base travel agency commission rates
            for two years following the merger;

      o     the likelihood that the merger would be approved by requisite
            regulatory authorities;

      o     future career opportunities that our employees may have with
            UAL Corporation following the merger; and

      o     the potential impact of the transaction on the communities and
            customers we serve, which the Board believed to be favorable.

The Board of Directors weighed these positive factors against the following
adverse considerations:

      o     the covenant in the merger agreement restricting our ability to
            solicit or entertain other potential acquisition proposals
            unless certain conditions are satisfied;

      o     the covenants in the merger agreement restricting the conduct
            of our business prior to the consummation of the merger only in
            the ordinary course consistent with past practice as well as
            various other operational restrictions on us prior to the
            consummation of the merger;

      o     the provision in the merger agreement requiring us to pay a
            $150,000,000 termination fee, plus up to a maximum of
            $10,000,000 for reimbursement of expenses, if the merger
            agreement is terminated under certain circumstances more fully
            described in the section entitled "Summary of the Merger
            Agreement- Termination Fees" on page 48; and

      o     the risks and costs to us if the transaction does not close,
            which risks and costs result from the extensive efforts that
            would be required to attempt to complete the transaction, the
            significant distractions which our employees will experience
            during the pendency of the transaction, the payments in
            connection with employee benefit matters we would make upon
            receipt of approval of the merger by our stockholders even if
            the merger is not consummated and the possibility that our
            stock price could decline below the pre- announcement level.

In addition, the Board considered the interests of certain directors and
executive officers that are different from, or in addition to, the
interests of our stockholders generally described under "Interests of
Certain Persons in the Merger" on page 31. The Board did not believe that
these interests should affect its decision to approve the merger in light
of the fact that such interests are primarily based on contractual
arrangements which were in place prior to the negotiation of the merger and
the Board's assessment that the judgment and performance of the directors
and executive officers would not be impaired by such interests.

      The above discussion concerning the information and factors
considered by the Board is not intended to be exhaustive, but includes all
of the material factors considered by the Board in making its
determination. In view of the variety of factors considered in connection
with its evaluation of the merger agreement and the proposed merger, the
Board did not quantify or otherwise attempt to assign relative weights to
the specific factors it considered in reaching its determination. In
addition, individual members of the Board may have given different weight
to different factors.

      Mr. Robert Johnson, having an interest in the disposition of certain
assets at the Reagan Washington National Airport in connection with the
merger and related transactions, abstained from voting on the merger, the
merger agreement, the memorandum of understanding and related matters
presented to the Board.

OPINION OF FINANCIAL ADVISOR

      On April 27, 2000, Salomon Smith Barney was retained by us to act as
our financial advisor in connection with the merger. In connection with
this engagement, we requested that Salomon Smith Barney evaluate the
fairness, from a financial point of view, of the merger consideration to be
received by our stockholders. At a meeting of our Board of Directors held
on May 23, 2000 to consider the merger, Salomon Smith Barney delivered to
the Board its oral opinion (which was subsequently confirmed in writing)
that, as of that date and based upon and subject to the matters reviewed
with the Board, the merger consideration to be received by our stockholders
was fair from a financial point of view to such stockholders.

      THE FULL TEXT OF THE WRITTEN OPINION OF SALOMON SMITH BARNEY DATED
MAY 23, 2000, WHICH SETS FORTH THE ASSUMPTIONS MADE, MATTERS CONSIDERED AND
LIMITATIONS ON THE REVIEW UNDERTAKEN, IS ATTACHED AS APPENDIX B TO THIS
PROXY STATEMENT. YOU SHOULD READ THE OPINION CAREFULLY IN ITS ENTIRETY. THE
OPINION OF SALOMON SMITH BARNEY IS DIRECTED TO OUR BOARD OF DIRECTORS AND
RELATES ONLY TO THE FAIRNESS OF THE MERGER CONSIDERATION FROM A FINANCIAL
POINT OF VIEW. THE OPINION DOES NOT ADDRESS ANY OTHER ASPECT OF THE MERGER
AND DOES NOT CONSTITUTE A RECOMMENDATION TO ANY STOCKHOLDER AS TO HOW SUCH
STOCKHOLDER SHOULD VOTE ON THE MERGER AGREEMENT. IN ADDITION, THE OPINION
DOES NOT ADDRESS THE UNDERLYING BUSINESS DECISION BY OUR BOARD OF DIRECTORS
TO EFFECT THE MERGER. THE SUMMARY OF THE OPINION OF SALOMON SMITH BARNEY
SET FORTH IN THIS DOCUMENT IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO THE
FULL TEXT OF THE OPINION.

      In arriving at its opinion, Salomon Smith Barney:

      o     reviewed a draft dated May 23, 2000 of the merger agreement;

      o     held discussions with certain of our senior officers concerning
            the business, operations, financial condition and prospects of
            our company;

      o     examined certain publicly available business and financial
            information relating to, as well as certain financial forecasts
            and other information and data for, our company which were
            provided to or otherwise discussed with Salomon Smith Barney by
            our management;

      o     reviewed the financial terms of the merger as set forth in the
            merger agreement in relation to, among other things: current
            and historical market prices and trading volumes of our common
            stock; our historical and projected earnings and other
            operating data; and our capitalization and financial condition;
            and

      o     considered, to the extent publicly available, the financial
            terms of other transactions recently effected which Salomon
            Smith Barney considered relevant in evaluating the merger and
            analyzed certain financial, stock market and other publicly
            available information relating to the businesses of other
            companies whose operations Salomon Smith Barney considered
            relevant in evaluating the operations of our company.

      In addition to the foregoing, Salomon Smith Barney conducted such
other analyses, studies and examinations and considered such other
financial, economic and market criteria as Salomon Smith Barney deemed
appropriate in arriving at its opinion. Salomon Smith Barney noted that its
opinion was necessarily based upon information available to Salomon Smith
Barney, and financial, stock market and other conditions and circumstances
as they existed, had been disclosed to Salomon Smith Barney and could be
evaluated as of the date of its opinion.

      In rendering its opinion, Salomon Smith Barney assumed and relied,
without independent verification, upon the accuracy and completeness of all
financial and other information and data publicly available or furnished to
or otherwise reviewed by or discussed with Salomon Smith Barney. With
respect to financial forecasts provided to or otherwise reviewed by or
discussed with Salomon Smith Barney, our management advised Salomon Smith
Barney that such forecasts were reasonably prepared reflecting the best
currently available estimates and judgments of our management as to the
future financial performance of our company, and Salomon Smith Barney
expressed no opinion as to such forecasts. Salomon Smith Barney did not
make and was not provided with an independent evaluation or appraisal of
our assets (including properties and facilities) or liabilities (contingent
or otherwise) nor did Salomon Smith Barney make any physical inspection of
our properties, facilities or assets. In connection with its engagement,
Salomon Smith Barney was not requested to, and did not, solicit third party
indications of interest in all or a part of our company. Salomon Smith
Barney was not requested to consider, and its opinion did not address, the
relative merits of the merger as compared to any alternative business
strategies that might exist for our company or the effect of any other
transaction in which we might engage.

      In connection with its opinion, Salomon Smith Barney performed
various financial analyses which it presented to and discussed with our
Board on May 23, 2000. The analyses performed by Salomon Smith Barney in
connection with rendering its opinion are described below. These
descriptions of financial analyses include information presented in tabular
format. In order to fully understand the financial analyses performed by
Salomon Smith Barney, the tables must be read together with the text of
each description. The tables alone do not constitute a complete description
of the financial analyses. Considering the data in the tables without
considering the full narrative description of the financial analyses,
including the methodologies and assumptions underlying the analyses, could
create a misleading or incomplete view of the financial analyses performed
by Salomon Smith Barney.

Comparable Companies Analysis on a Non-Control Basis

      Using publicly available information, Salomon Smith Barney analyzed
selected financial data for each of nine publicly traded airline carriers
that Salomon Smith Barney considered comparable to our company (the
"Selected Companies") and compared the data with comparable data for us. In
performing this analysis, Salomon Smith Barney reviewed selected financial
data for the following Selected Companies:

      o     Alaska Air Group, Inc.;

      o     America West Holdings Corporation;

      o     AMR Corporation;

      o     Continental Airlines, Inc.;

      o     Delta Air Lines, Inc.;

      o     Northwest Airlines Corporation;

      o     Southwest Airlines Company;

      o     Trans World Airlines, Inc.; and

      o     UAL Corporation.

      For each of the Selected Companies and for us, Salomon Smith Barney
calculated multiples of the following:

      o     Market Price on May 19, 2000 ($25.31) to:

               o Earnings per share ("EPS") for fiscal year 1998;
               o EPS for the latest twelve-month period ended
                 March 31, 2000;
               o Estimated EPS for fiscal year 2000;
               o Estimated EPS for fiscal year 2001.

      o     Equity value (on a fully diluted basis at the current market
            price less any option proceeds) plus debt, capitalized
            operating leases, capitalized leases, minority interests,
            preferred stock and out of the money convertible securities,
            less investments in unconsolidated affiliates and cash
            ("Enterprise Value") to:

               o Earnings before interest, taxes, depreciation, amortization
                 and total lease expense ("EBITDAR") for fiscal year 1998;
               o EBITDAR for the latest twelve-month period ended March 31,
                 2000;
               o Estimated EBITDAR for fiscal year 2000; and
               o Estimated EBITDAR for fiscal year 2001.

      Salomon Smith Barney's analysis resulted in the following range of
multiples:

<TABLE>
<CAPTION>

                                   1998          LTM          2000E         2001E
                                EPS EBITDAR  EPS  EBITDAR  EPS  EBITDAR  EPS  EBITDAR
---------------------------    ------------- ------------- ------------- -------------
<S>                            <C>    <C>            <C>   <C>     <C>   <C>     <C>
US Airways - Management Case   4.5x   4.6x   NM      8.6x  14.5x   6.0x  5.3x    4.8x
US Airways - First Call Case   4.5    4.6    NM      8.6   21.3    6.1   7.3     NA
UAL Corporation                8.9    6.4    6.0     5.2   6.4     5.2   6.2     5.1
Median Airline Comparables     6.8    6.5    8.0     5.6   7.5     5.4   6.2     5.1
Mean Airline Comparables       9.3    7.1    9.7     6.7   9.1     6.2   7.7     5.6
---------------------------    ----- ------- ----- ------- ----- ------- ----- -------
</TABLE>

      Financial data used to calculate market price to EPS multiples for
the Selected Companies was based on consensus estimates published by First
Call, and financial data used to calculate Enterprise Value to EBITDAR
multiples for the Selected Companies was based on selected research
reports. Financial data used to calculate the multiples for the US Airways
- Management Case described in the first line of the preceding table was
based on estimates prepared by our management and provided to Salomon Smith
Barney, and financial data used to calculate the multiples for the US
Airways - First Call Case described in the second line of the preceding
table was based on consensus estimates published by First Call and selected
research reports.

      Salomon Smith Barney compared the multiples for the Selected
Companies with comparable data for us. Based on the analysis described
above, Salomon Smith Barney derived an equity value reference range per
share of our common stock of $22.00 to $36.00.

Comparable Companies Analysis on a Control Basis

      Based upon publicly available information, Salomon Smith Barney
analyzed selected financial data relating to public company transactions
involving an enterprise value in excess of $10 billion that were
consummated or announced during the period from January 1, 1997 through May
19, 2000 (the "Historical Transactions"). Salomon Smith Barney calculated
that the average control premium paid or proposed to be paid to the
acquired companies in the Historical Transactions was approximately 35%,
based upon the closing stock prices of the acquired companies thirty days
prior to the public announcement of each transaction.

      Based upon this analysis, Salomon Smith Barney applied a 35% control
premium to the equity value reference range per share of our common stock
derived in its "Comparable Companies Analysis on a Non-Control Basis" and
thereby derived an equity value reference range per share of our common
stock of $29.00 to $49.00.

Discounted Cash Flow Analysis

      Salomon Smith Barney performed a discounted cash flow analysis of our
projected after-tax unlevered free cash flows. After-tax unlevered free
cash flow is defined as operating earnings before depreciation,
amortization and interest expense, but after changes in working capital,
net capital spending, and taxes. This analysis was based on forecasts
prepared by our management for the period from March 31, 2000 through
December 31, 2004.

      Salomon Smith Barney calculated implied equity values per share of
our common stock by utilizing discount rates ranging from 9.0% to 10.0% and
terminal value multiples of estimated 2004 EBITDAR for us ranging from 5.4
to 5.8. Salomon Smith Barney arrived at these discount rates based on its
judgment of the weighted average cost of capital for the Selected
Companies, and arrived at these terminal value multiples based upon the
current values of the Selected Companies.

      Based upon this analysis, Salomon Smith Barney derived an equity
value reference range per share of our common stock of $32.00 to $47.00.

Precedent Transaction Analysis

      Using publicly available information, Salomon Smith Barney considered
fourteen transactions within the airline industry that were announced and
consummated during the period from July 10, 1997 to May 19, 2000.

      Of these transactions, twelve were partial acquisitions or minority
investments, or transactions between carriers, including regional or
international carriers, that Salomon Smith Barney did not consider
comparable to the merger. Salomon Smith Barney did, however, analyze the
implied purchase price multiples paid in the following two selected recent
transactions that it considered to have somewhat similar factors to the
merger (together, the "Selected Transactions"):

      o     Delta Air Lines, Inc.'s acquisition of Comair Holdings, Inc.; and

      o     Delta Air Lines, Inc.'s acquisition of ASA Holdings, Inc.

      For each of the Selected Transactions, Salomon Smith Barney

      o     calculated a range of multiples of implied Enterprise Value to
            EBITDAR for the twelve- month period immediately preceding the
            announcement of the transaction, and

      o     applied a range of selected multiples related to the Selected
            Transactions to estimated data derived for our company.

      Based upon this analysis, Salomon Smith Barney derived an equity
value reference range per share of our common stock of $42.00 to $63.00.
Salomon Smith Barney advised our Board, however, that, in light of the
small number of transactions that it considered similar to the merger, this
analysis was not a reliable indicator of value.

      Neither Selected Transaction was identical to the merger, nor are
either of the acquired companies in the Selected Transactions identical to
us. Moreover, an analysis of the results of such a comparison is not purely
mathematical; rather it involves complex considerations and judgments,
based upon the financial advisor's professional experience, concerning
differences in the historical and projected financial and operating
characteristics of the acquired companies and other factors that could
affect the acquisition value of such companies and us.

Market Price Analysis

      Salomon Smith Barney reviewed selected information regarding the
historical stock price performance of our common stock as of May 19, 2000.
The results of this review are as follows:

                  Average Closing Share Price During Last:


             5 Years      1 Year      6 Months      1 Day
             ---------    --------    ----------    -------
             $35.15       $30.52      $25.62        $25.31

                          Low / High During Last:


                    5 Years                  1 Year
             ---------------------    ---------------------
             $8.00        $81.63      $17.63      $53.13


      Salomon Smith Barney also compared the historical stock price
performance of our common stock with the merger consideration. The results
of this review are as follows:

                                                     Market           Offer
(Dollars In Millions, Except Per Share (Data)        $25.31           Price
                                              (as of May 19, 2000)    $60.00
------------------------------------------------------------------------------
Market Price                              |      Premium (Discount) to Market
      Market                      $25.31  |              0.0%       137.0%
                                          |
      52-Week High (5/20/99)       53.13  |            (52.4)        12.9
                                          |
      52-Week Low (3/7/00)         17.63  |             43.6        240.4
                                          |
      12 Month Average             30.52  |            (17.1)        96.6
                                          |
      5 Year Average               35.15  |            (28.0)        70.7
------------------------------------------------------------------------------



-------------------------------------------------------------------------
      Net Equity Value                           $1,715         $4,190

      Enterprise Value (Enterprise Value          9,363         11,838
      is equal to equity value less $1.368
      billion of cash plus $2.874 billion
      of debt and $6.142 billion of
      capitalized operating leases as of
      March 31, 2000.)
-------------------------------------------------------------------------


Synergies Analysis

      Salomon Smith Barney analyzed potential synergies that could be
achieved as a result of the merger. Assuming that revenue synergies for the
combined company of 1% to 4% (based on estimated 2000 revenues) could be
achieved as a result of the merger, Salomon Smith Barney estimated that the
combined company could achieve an increase in annual revenues ranging from
$290 million to $1.16 billion, and that the combined company could achieve
an increase in annual pre-tax profits (relating to these revenues) ranging
from $232 million to $929 million. Assuming that cost-savings synergies for
the combined company of 1% to 4% (based on estimated 2000 operating costs)
could be achieved as a result of the merger, Salomon Smith Barney estimated
that the combined company could achieve annual cost savings ranging from
$253 million to $1.01 billion.

      Salomon Smith Barney's analysis was based on estimated combined
revenues for fiscal year 2000 of $29.03 billion and estimated combined
operating (non-depreciation and amortization) costs of $25.26 billion. For
purposes of its analysis, Salomon Smith Barney assumed that 20% of the
synergies could be realized in first year of operations following the
merger, 60% of the synergies could be realized in the second year and 100%
of the synergies could be realized in the third year. Salomon Smith Barney
also assumed that the one-time costs associated with achieving these
synergies could be $250 million in the first year, $175 million in the
second year and $50 million in the third year. Salomon Smith Barney noted
that the potential synergies described above could be offset by costs
associated with the combination of the two companies.

Implied Valuation Multiples Analysis

      Salomon Smith Barney calculated the following implied valuation
multiples for selected periods of time. The results of these calculations
are as follows:

<TABLE>
<CAPTION>
    Dollars in millions        Market      Offer Price   Comparable     Precedent
  (except per share data)      $25.31        $60.00       Companies   Transactions
-----------------------------------------------------------------------------------
          EBITDAR                             Enterprise Value /
                                                    EBITDAR
<C>              <C>            <C>           <C>            <C>           <C>
1998A            $2,053         4.6x          5.8x           6.5x          --
LTM               1,088          8.6          10.9           5.6           7.8x
2000E             1,571          6.0           7.5           5.4           --
2001E             1,965          4.8           6.0           5.1           --
    Earnings per Share                    Price / Earnings per Share
         (Diluted)
--------------------------- -------------------------------------------------------
1998A             $5.60         4.5x          10.7x         6.8x           --
LTM              (1.81)          NM            NM            8.0          15.5x
2000E             1.74          14.5          34.5           7.5           --
2001E             4.73           5.3          12.7           6.2           --
</TABLE>

      Based upon a review of this analysis, Salomon Smith Barney observed
that the multiple of implied Enterprise Value (at an offer price of $60.00
per share) to EBITDAR compared favorably to the multiple of implied
Enterprise Value (at a market price of $25.31 per share (our market price
as of May 19, 2000)) to EBITDAR and to the median multiple of implied
Enterprise Value to EBITDAR of the Comparable Companies (for each of LTM,
2000E and 2001E). Salomon Smith Barney also observed that the multiple of
offer price (at $60.00 per share) to EPS compared favorably relative to the
multiple of market price (at $25.31 per share) to EPS and to the median
multiple of price per share to EPS of the Comparable Companies.

      EBITDAR and EPS estimates used in this analysis were provided to
Salomon Smith Barney by our management. Data used in this analysis relating
to Comparable Companies and Precedent Transactions was derived from
Comparable Companies Analysis on a Non-Control Basis and the Precedent
Transactions Analysis performed by Salomon Smith Barney and described
above.


Other

      No company, transaction or business used in Salomon Smith Barney's
analyses as a comparison is identical to our company or the merger, nor is
an evaluation of the results of such analyses entirely mathematical;
rather, it involves complex considerations and judgments concerning
differences in financial and operating characteristics and other factors
that could affect the acquisition, public trading or other values of the
companies, transactions or business segments being analyzed. In its
analyses, Salomon Smith Barney made numerous assumptions with respect to
our company, UAL Corporation, industry performance, general business,
economic, and financial market conditions and other matters, many of which
are beyond UAL Corporation and our control. The estimates contained in
Salomon Smith Barney's analyses and the valuation ranges resulting from any
particular analysis are not necessarily indicative of actual value or
predictive of future results or values, which may be significantly more or
less favorable than those suggested by such analysis. In addition, analyses
relating to the value of businesses or securities do not purport to be
appraisals or to reflect the prices at which businesses or securities
actually may be sold. Accordingly, such analyses and estimates are
inherently subject to substantial uncertainty. The material assumptions
underlying the opinion of Salomon Smith Barney vary with each of the
valuation analyses performed by Salomon Smith Barney in rendering such
opinion and, in each case, are disclosed in the summary of the applicable
valuation analysis.

      Salomon Smith Barney's opinion and analyses were only one of many
factors considered by our Board in its evaluation of the merger and should
not be viewed as determinative of the views of our Board or our management
with respect to the merger consideration or the merger.

      Pursuant to the terms of Salomon Smith Barney's engagement, we have
agreed to pay Salomon Smith Barney a fee of $8,000,000 in consideration of
its services in connection with the merger. In addition, we may elect to
pay Salomon Smith Barney an additional fee in an amount not to exceed
$2,000,000 upon consummation of the merger. This additional fee is not a
contractual obligation of ours and would only be paid if our Board of
Directors determines that Salomon Smith Barney performs services
substantially in excess of the services expected to be performed at the
commencement of the engagement. We have also agreed to reimburse Salomon
Smith Barney for all reasonable expenses incurred in performing its
services in connection with the merger, including the reasonable fees and
expenses of its legal counsel, and have agreed to indemnify Salomon Smith
Barney and certain related persons against various liabilities relating to
or arising out of its engagement, including liabilities under the federal
securities laws.

      Salomon Smith Barney has advised us that it and certain of its
affiliates beneficially own approximately 2,869,001 shares of our common
stock. In addition, Salomon Smith Barney has advised us that, in the
ordinary course of business, Salomon Smith Barney and its affiliates may
actively trade or hold our and UAL Corporation securities for their own
account or for the accounts of customers and, accordingly, may at any time
hold a long or short position in such securities. Salomon Smith Barney has
in the past provided investment banking services to us and UAL Corporation
unrelated to the proposed merger, for which services Salomon Smith Barney
has received customary compensation. In addition, Salomon Smith Barney and
its affiliates (including Citigroup Inc. and its affiliates) may maintain
relationships with us, UAL Corporation, Inc. and their respective
affiliates in the ordinary course of their respective businesses.

      Salomon Smith Barney is an internationally recognized investment
banking firm and was selected by us based on its experience, expertise and
familiarity with us and our business. Salomon Smith Barney regularly
engages in the valuations of businesses and their securities in connection
with mergers and acquisitions, negotiated underwritings, competitive bids,
secondary distributions of listed and unlisted securities, private
placements and valuations for estate, corporate and other purposes.


CERTAIN ESTIMATES PROVIDED TO UAL CORPORATION

      In the normal course of business, our management prepares internal
budgets, plans, estimates, forecasts or projections as to future revenues,
earnings or other financial information in order to be able to anticipate
the financial performance of our company. Except in limited circumstances,
we do not, as a matter of course, publicly disclose these internal
documents.

      In connection with the negotiation of the terms of the merger, we
prepared and provided to UAL Corporation in late April 2000 certain
nonpublic estimates for the fiscal years ending December 31, 2000 through
2004. These estimates were also provided to Salomon Smith Barney, our
financial advisor for the merger, in connection with their evaluation of
the fairness, from a financial point of view, of the merger consideration
to be received by our stockholders. These estimates were prepared on the
basis that we continue as a stand-alone entity. Accordingly, these
estimates do not take into account the combination of our operations with
UAL Corporation's operations which would result from the merger.

      The financial estimates were prepared on the basis of limitations,
qualifications and assumptions, and involved judgments with respect to,
among other things, future economic, competitive, regulatory and financial
and market conditions and future business decisions which may not be
realized and are inherently subject to significant business, economic and
competitive uncertainties, all of which are difficult to predict and many
of which are beyond our control. These uncertainties are described under
"Cautionary Statement Regarding Forward-Looking Statements."

      There can be no assurance that the estimates would be accurate, and
actual results could vary materially from those shown. In light of the
uncertainties inherent in forward-looking information of any kind, the
inclusion of these estimates should not be regarded as a representation by
us or any other entity or person that the anticipated results would be
achieved and investors are cautioned not to place undue reliance on such
information.

The material assumptions underlying these estimates are that:

      o     we continue as a stand-alone carrier and do not participate as
            a member of a global alliance;

      o     the current favorable economic conditions continue throughout
            the term of the estimates;

      o     the competitive environment we currently experience will not
            change in any material way;

      o     our flight attendants approve a new five year labor contract,
            which they did on May 1, 2000;

      o     fuel prices (including taxes and service fees) per gallon are
            as follows:

                2000           2001       2002        2003        2004
            --------        --------    -------     --------     -------
               80.9(cent)  76.3(cent)  65.4(cent)  65.4(cent)  65.4(cent)


      o     we do not experience any significant operational disruptions
            during the term of the estimates, including any of the types of
            significant disruptions experienced by us in 1999 and 2000; and

      o     available seat miles (ASMs) for US Airways, Inc., our principal
            operating subsidiary, would increase during the term of the
            estimates as follows:


      ASM (Billions)


                2000      2001     2002      2003     2004
            --------  --------  -------  --------  -------
                67.4      74.0     77.5      79.2     81.0




These estimates are summarized as follows:


                                       FORECAST
                            Fiscal year ended December 31,
                2000         2001        2002        2003         2004
                ----         ----        ----        ----         ----
Total          $9,401      $10,478      $11,195     $11,691     $12,106
Operating
Revenue*
Total          $9,006      $ 9,719      $10,140     $10,635     $11,045
Operating
Expense*
Basic           $1.77        $4.95        $7.90       $8.21       $8.61
Earnings Per
Share
Diluted         $1.74        $4.73        $7.42       $7.60       $7.74
Earnings Per
Share

______________________
*  Amounts in millions


INTERESTS OF CERTAIN PERSONS IN THE MERGER

      In considering the recommendation of our Board with respect to the
merger, stockholders should be aware that the executive officers and
directors have some interests in the merger that may be different from, or
in addition to, the interests of stockholders generally. The Board was
aware of these interests and considered them, among other matters, in
making its recommendation.

      SEVERANCE AND EMPLOYMENT AGREEMENTS

      Each of our executive officers is party to an employment or severance
agreement with us which provides for certain benefits upon a termination of
employment by us without "cause" or by the executive officer for "good
reason" (each as defined in the executive officer's employment or severance
agreement) during the period beginning on the date of stockholder approval
of the merger and ending on the third anniversary of the date of
consummation of the merger (the fourth anniversary in the case of Mr.
Stephen Wolf). In addition, pursuant to the terms of the merger agreement,
UAL Corporation has agreed that (a) with respect to Messrs. Stephen Wolf,
Rakesh Gangwal and Lawrence Nagin, any termination of employment following
the consummation of the merger and (b) with respect to the other executive
officers, any termination of employment during the period commencing on the
six-month anniversary of the date of consummation of the merger and ending
on the nine-month anniversary of such date will, in each case,
automatically be deemed to be a termination for "good reason" giving rise
to the payment of severance benefits.

      Each agreement provides for (a) a severance payment equal to three
times the sum of (i) the executive officer's base salary and (ii) (A) in
the case of Messrs. Wolf and Gangwal, the highest of (1) the annual bonus
paid in respect of the immediately preceding year, (2) the annual bonus
paid during the immediately preceding year or (3) the current year's
maximum bonus, or (B) in the case of the other executive officers, the
highest of (1) the annual bonus paid in respect of the immediately
preceding year, (2) the annual bonus paid during the immediately preceding
year or (3) the annual bonus that would have been paid to the executive
with respect to the last fiscal year if the applicable targets had been
achieved and the current year's bonus percentage had been applied; (b) a
pro rata bonus through the date of termination; and (c) continued
retirement, welfare and fringe benefits, including transportation benefits,
for three years (four years in the case of Mr. Wolf) and that such
executive officer is deemed to have retired from our company for purposes
of such plans at the end of such period; provided, however, the executive
officers receive transportation and certain welfare benefits for life
following such period. In addition, a "gross-up" payment to compensate the
executive officer for any "golden parachute" excise tax is also provided.

      Assuming current salary and bonus information remain in effect, if
the merger is consummated on December 31, 2000 and the employment of each
of the executive officers is immediately terminated, the approximate value
of the severance payments due under the employment and severance agreements
to each of the executive officers, including amounts attributable to
continued retirement plan benefits but not including any payments that may
be made with respect to any excise tax, would be: Mr. Stephen M. Wolf
(Chairman) , $7.6 million, Mr. Rakesh Gangwal (President and Chief
Executive Officer), $8.3 million, Mr. Lawrence M. Nagin (Executive Vice
President, Corporate Affairs and General Counsel), $3.4 million, Mr. N.
Bruce Ashby (Senior Vice President, Corporate Development), $1.9 million,
Mr. B. Ben Baldanza (Senior Vice President, Marketing), $2.4 million, Ms.
Michelle V. Bryan (Senior Vice President, Human Resources), $2.0 million,
Mr. Alan W. Crellin (Senior Vice President, Customer Service), $1.6
million, Mr. Christopher Doan (Senior Vice President, Maintenance), $1.7
million, Mr. Thomas A. Mutryn (Senior Vice President, Finance and Chief
Financial Officer), $2.9 million and Mr. Gregory T. Taylor (Senior Vice
President, Planning) $2.0 million.

      LONG TERM INCENTIVE AWARDS

      Pursuant to the terms of our Long Term Incentive Plan and awards
thereunder, upon consummation of the merger, each executive officer will
receive a cash payment with respect to each then- outstanding three-year
performance cycle equal to the executive officer's target percentage
multiplied by the average rate of base salary in effect on the last day of
each of the three years in the performance cycle. In calculating the
average, the executive officer's rate of base salary upon consummation of
the merger will be utilized for any years in the performance cycle which
have not yet been completed. Based upon performance cycles currently
outstanding under the Long Term Incentive Plan and assuming current salary
and bonus information remain constant, the approximate value of the cash
payments due under the Long Term Incentive Plan to each of the executive
officers upon consummation of the merger would be: Mr. Wolf, $4.0 million,
Mr. Gangwal, $4.5 million, Mr. Nagin, $1.0 million, Mr. Ashby, $0.5
million, Mr. Baldanza, $0.8 million, Ms. Bryan, $0.6 million, Mr. Crellin,
$0.5 million, Mr. Doan, $0.6 million, Mr. Mutryn, $0.9 million and Mr.
Taylor, $0.6 million.

      SUPPLEMENTAL PENSION AGREEMENTS

      Each of Messrs. Wolf, Gangwal, Nagin, Ashby, Baldanza, Mutryn and
Taylor is party to a supplemental pension agreement with us. Assuming the
merger is consummated on December 31, 2000 and that each such individual's
employment is immediately terminated, the annual retirement benefit
commencing immediately for each of Messrs. Wolf, Gangwal and Nagin would
increase by approximately $87,000, $649,000 and $126,000, respectively, and
the annual retirement benefit commencing upon attainment of age 55 for each
of Messrs. Ashby, Baldanza, Mutryn and Taylor would increase by
approximately $40,000, $40,000, $30,000 and $20,000, respectively.


      EQUITY-BASED AWARDS

Stock Options

      Pursuant to the terms of our equity-based compensation plans and
awards thereunder, unvested stock options held by our executive officers
will become vested and exercisable upon stockholder approval of the merger.
Pursuant to the merger agreement, upon consummation of the merger, each
executive officer will receive, with respect to each stock option then held
by such executive officer, a cash payment equal to the amount by which
$60.00 exceeds the exercise price of such stock option, multiplied by the
number of shares subject to the option. The number of unvested stock
options with an exercise price of less than $60.00 per share held by each
of the executive officers as of September 15, 2000 (and the approximate
amount such person will be entitled to receive in respect of those stock
options upon consummation of the merger) is as follows: Mr. Wolf, 240,000
($3.1 million), Mr. Gangwal, 500,000 ($6.4 million), Mr. Nagin, 18,000
($0.6 million), Mr. Ashby, 6,000 ($0.2 million), Mr. Baldanza, 67,500 ($2.2
million), Ms. Bryan, 20,800 ($0.3 million), Mr. Crellin, 4,800 ($0.4
million), Mr. Doan, 20,000 ($0.7 million), Mr. Mutryn, 66,666 ($0.9
million) and Mr. Taylor, 35,250 ($0.6 million).

Restricted Stock

      Pursuant to the terms of our equity-based compensation plans and
awards thereunder, (a) certain shares of restricted stock held by executive
officers (the "Type A Restricted Stock") will vest upon the consummation of
the merger, (b) other shares of restricted stock held by executive officers
(the "Type B Restricted Stock") will vest upon consummation of the merger
or, if earlier, upon certain terminations of the executive officer's
employment following stockholder approval of the merger and (c) other
shares of restricted stock held by executive officers (the "Type C
Restricted Stock") will vest upon stockholder approval of the merger. The
executive officer will receive a payment to compensate him or her for any
income taxes payable with respect to the vesting of Type C Restricted
Stock. The number of shares of Types A, B and C Restricted Stock and the
aggregate value of that restricted stock based upon a per share price of
$60.00 held by each of the executive officers as of September 15, 2000 is
as follows: Messrs. Wolf (0, 100,000, 221,121 and $19.3 million), Mr.
Gangwal (0, 125,000, 237,450 and $21.7 million), Mr. Nagin (10,000, 17,500,
15,331 and $2.6 million), Mr. Ashby (10,000, 19,125, 0 and $1.7 million),
Mr. Baldanza (0, 30,000, 0, $1.8 million), Ms. Bryan (10,000, 18,750, 0 and
$1.7 million), Mr. Crellin (10,000, 12,625, 0, and $1.4 million), Mr. Doan
(3,000, 10,000, 0 and $0.8 million), Mr. Mutryn (10,000, 42,291, 0 and $3.1
million) and Mr. Taylor (10,000, 32,125, 0 and $2.5 million).

Director Equity-Based Awards

      Pursuant to the terms of our equity-based compensation plans and
awards thereunder, the unvested stock options held by our non-employee
directors will become vested and exercisable upon consummation of the
merger. In addition, the unvested deferred stock units held by our
non-employee directors will vest upon consummation of the merger. As of
September 15, 2000, each current non- employee director who is still in
service as a director will hold 1,500 unvested stock options and 500
unvested deferred stock units.

Director Travel Benefits

      Pursuant to the terms of our travel policy for non-employee
directors, each director who terminates service after having completed at
least 10 years of service as a director is entitled to free, positive
space, lifetime travel privileges on US Airways or our successor, including
United Airlines following consummation of the merger, and an income tax
gross up payment with respect thereto. Following consummation of the
merger, each non-employee director who terminates service having completed
less than 10 years of service as a director will be entitled to free,
positive space travel privileges on US Airways or our successor, including
United Airlines, for 7 years following termination of service, with an
income tax gross up payment with respect thereto.


MERGER FINANCING; SOURCE OF FUNDS

      UAL Corporation has informed us that the aggregate merger
consideration of approximately $4.28 billion to be paid to our stockholders
(assuming that no stockholders perfect their appraisal rights under
Delaware law) will be financed through existing and new debt facilities and
cash on hand. UAL Corporation believes that it will be able to obtain any
new debt facilities needed to finance the merger.

CERTAIN UNITED STATES FEDERAL INCOME TAX CONSEQUENCES

      The following is a summary of anticipated material United States
federal income tax consequences of the merger to stockholders of the
Company whose shares are converted into the right to receive cash in the
merger. The discussion does not purport to consider all aspects of United
States federal income taxation that might be relevant to our stockholders.
The discussion is based on current provisions of the Internal Revenue Code
of 1986, as amended (the "Code"), existing, proposed and temporary
regulations promulgated thereunder and administrative and judicial
interpretations thereof, all of which are subject to change, possibly with
a retroactive effect. The discussion applies only to stockholders in whose
hands shares of our common stock are capital assets within the meaning of
Section 1221 of the Code and who do not own directly or though attribution
50% or more of the stock of UAL Corporation. This discussion does not apply
to shares of common stock received pursuant to the exercise of employee
stock options or otherwise as compensation, or to certain types of
stockholders (such as insurance companies, tax-exempt organizations,
financial institutions and broker-dealers) who may be subject to special
rules. This discussion does not discuss the United States federal income
tax consequences to any stockholder who, for United States federal income
tax purposes, is a non- resident alien individual, a foreign corporation, a
foreign partnership or a foreign estate or trust, nor does it consider the
effect of any foreign, state or local tax laws.

      BECAUSE INDIVIDUAL CIRCUMSTANCES MAY DIFFER, EACH STOCKHOLDER SHOULD
CONSULT HIS OR HER OWN TAX ADVISOR TO DETERMINE THE APPLICABILITY OF THE
RULES DISCUSSED BELOW AND THE PARTICULAR TAX EFFECTS OF THE MERGER, ON A
BENEFICIAL HOLDER OF SHARES OF OUR COMMON STOCK, INCLUDING THE APPLICATION
AND EFFECT OF THE ALTERNATIVE MINIMUM TAX, AND ANY STATE, LOCAL AND FOREIGN
TAX LAWS AND OF CHANGES IN SUCH LAWS.

      The exchange of shares of common stock for cash pursuant to the
merger will be a taxable transaction for United States federal income tax
purposes and possibly for state, local and foreign income tax purposes as
well. In general, a stockholder who receives cash in exchange for shares of
common stock pursuant to the merger will recognize gain or loss for
United States federal income tax purposes equal to the difference, if any,
between the amount of cash received and the stockholder's adjusted tax
basis in the shares exchanged for cash pursuant to the merger. Gain or loss
will be determined separately for each block of shares (i.e., shares
acquired at the same cost in a single transaction) exchanged for cash
pursuant to the merger. Such gain or loss will be long-term capital gain or
loss provided that a stockholder's holding period for such shares of common
stock is more than one year at the time of consummation of merger. Capital
gain recognized by an individual upon a disposition of a share of common
stock that has been held for more than one year generally will be subject
to a maximum United States federal income tax rate of 20% or, in the case
of a share that has been held for one year or less, will be subject to tax
at ordinary income tax rates. Certain limitations apply to the use of a
stockholder's capital losses.

      You may be subject to "backup withholding" at a rate of 31% on
payments received in connection with the merger unless you (1) provide a
correct taxpayer identification number (which, if you are an individual, is
your social security number) and any other required information to the
paying agent, or (2) are a corporation or come within certain exempt
categories and, when required, demonstrate this fact, and otherwise comply
with applicable requirements of the backup withholding rules. If you do not
provide a correct taxpayer identification number, you may be subject to
penalties imposed by the IRS. Any amount paid as backup withholding does
not constitute an additional tax and will be creditable against your United
States federal income tax liability. You should consult with your own tax
advisor as to your qualification for exemption from backup withholding and
the procedure for obtaining such exemption. You may prevent backup
withholding by completing a Substitute W-9 and submitting it to the paying
agent for the merger when you submit your stock certificate(s) following
the effective time of the merger.

      You are urged to consult your tax advisor with respect to the tax
consequences of the merger, including the effects of applicable state,
local, foreign or other tax laws.

ACCOUNTING TREATMENT

      The merger will be accounted for using the purchase method of
accounting. Under this method of accounting, the purchase price will be
allocated to the fair value of the net assets acquired. The excess purchase
price over the fair value of the assets acquired will be allocated to
goodwill.

APPRAISAL RIGHTS OF STOCKHOLDERS

      You have the right to dissent from the merger and to demand and
obtain cash payment of the appraised value of your shares of our common
stock under the circumstances described below. The appraised value that you
obtain for your shares by dissenting may be less than, equal to or greater
than the $60.00 per share cash merger consideration provided for in the
merger agreement. If you fail to comply with the procedural requirements of
Section 262 of the Delaware General Corporation Law, you will lose your
right to dissent and seek payment of the appraised value of your shares. In
accordance with Section 262, the Company is obligated to mail to each
holder of shares as of the record date notice that such stockholder is
entitled to appraisal rights for their shares. THIS PROXY STATEMENT AND THE
NOTICE OF SPECIAL MEETING OF STOCKHOLDERS THAT ACCOMPANIES THIS PROXY
STATEMENT, CONSTITUTE SUCH NOTICE.

      The following is a summary of Section 262, which specifies the
procedures applicable to dissenting stockholders. This summary is not a
complete statement of the law regarding your right to dissent under
Delaware law, and if you are considering dissenting, we urge you to review
the provisions of Section 262 carefully. The text of Section 262 is
attached to this Proxy Statement as Appendix C, and we incorporate that
text into this Proxy Statement by reference. Among other matters, you
should be aware of the following:

      o     to be entitled to dissent and seek appraisal, you must hold
            shares of our common stock on the date you make the demand
            required under Delaware law, you must continuously hold those
            shares until the merger has been completed, you must not vote
            in favor of the merger and you must otherwise comply with the
            requirements of Section 262. Neither a failure to vote on the
            merger agreement, nor an abstention from voting on the merger
            agreement, will be construed as a vote in favor of the merger
            agreement. However, if you return your signed proxy left blank,
            your vote will be counted in favor of the merger agreement, and
            you will waive your appraisal right.

      o     before the special meeting, you must deliver a written notice
            that states your identity and your intent to demand appraisal
            to US Airways Group, Inc., 2345 Crystal Drive, Arlington,
            Virginia, 22227, Attention: General Counsel (you should be
            aware that simply voting against the merger is not a demand for
            appraisal rights);

      o     within ten days after the effective time of the merger, the
            surviving corporation will notify all of the dissenting
            stockholders who have complied with Section 262 and who have
            not voted in favor of the merger;

      o     within 120 days after the effective time of the merger, the
            surviving corporation or any stockholder who has complied with
            the requirements of Section 262 may file a petition in the
            Delaware Court of Chancery demanding a determination of the
            value of the stock of the dissenting stockholders;

      o     the Delaware Court of Chancery will determine which dissenting
            stockholders complied with the requirements of Section 262 and
            are entitled to appraisal rights;

      o     the Delaware Court of Chancery may require the stockholders who
            have demanded an appraisal for their shares (and who hold stock
            represented by certificates) to submit their stock certificates
            to the Register in Chancery for notation; and the Delaware
            Court of Chancery may dismiss the proceedings as to any
            stockholder that fails to comply with such direction.

      o     the Delaware Court of Chancery will then appraise the shares,
            determining their fair value exclusive of any element of value
            arising from the accomplishment or expectation of the merger,
            together with a fair rate of interest, if any, to be paid on
            the appraised fair value; the Delaware Court of Chancery will
            consider all relevant factors in determining the fair value and
            the fair interest rate (if any);

      o     the Delaware Court of Chancery will then direct the surviving
            corporation to pay the fair value of the dissenting shares,
            together with any interest, to the stockholders entitled to
            payment; payment will be made when the stockholder surrenders
            the certificates to the surviving corporation;

      o     the costs of the proceeding for appraising the fair value may
            be determined by the court and the court may require the
            parties to bear the costs in any manner that the court believes
            to be equitable;

      o     if you dissent from the merger, you will not be entitled to
            vote your shares of common stock for any purpose or to receive
            dividends or other distributions (other than dividends or other
            distributions payable to stockholders of record at a date prior
            to the effective time of the merger) following the merger;

      o     you may withdraw your demand for appraisal and accept the
            $60.00 per share cash merger consideration provided for in the
            merger agreement at any time within 60 days after the effective
            date of the merger; and

      o     the exchange of shares for cash pursuant to the exercise of
            appraisal rights will be a taxable transaction for United
            States federal income tax purposes and possibly state, local
            and foreign income tax purposes as well. See "Special Factors-
            Certain United States Federal Income Tax Consequences."


                            THE MERGER AGREEMENT

      The following is a brief summary of the material provisions of the
merger agreement. The following summary is qualified in its entirety by
reference to the merger agreement, which we have attached as Appendix A to
this proxy statement and which we incorporate by reference into this
document. We encourage you to read the merger agreement in its entirety.

THE MERGER

      The merger agreement provides that, following the adoption of the
merger agreement by our stockholders and the satisfaction or waiver of the
other conditions to the merger, including obtaining the requisite
regulatory approvals, Yellow Jacket Acquisition Corp. will be merged with
and into us, and we will be the surviving corporation. With respect to
obtaining regulatory approvals, we believe that efforts sufficient to
satisfy the requisite regulatory requirements can be concluded on or before
January 1, 2001. The merger will become effective upon the filing of the
certificate of merger with the Secretary of State of the State of Delaware
or at such later time agreed to by the parties and specified in the
certificate of merger.

      When the merger becomes effective, our Amended and Restated
Certificate of Incorporation will be the Certificate of Incorporation of
the surviving corporation, until thereafter changed or amended as provided
therein or by applicable law. The by-laws of Yellow Jacket Acquisition
Corp. in effect immediately prior to the effective time of the merger will
be the by-laws of the surviving corporation until thereafter changed or
amended as provided therein or by applicable law.

      Conversion of Capital Stock. At the effective time of the merger,
pursuant to the merger agreement and the Delaware General Corporation Law,
each issued and outstanding share of our common stock, other than any
shares (1) owned by us, UAL Corporation or Yellow Jacket Acquisition Corp.,
all of which will be canceled without consideration, or (2) held by a
dissenting stockholder exercising and perfecting appraisal rights, will be
converted into the right to receive $60.00 in cash, without interest.

      Exchange of Common Stock Certificates. At the effective time, each
certificate representing shares of our common stock then outstanding, other
than any shares owned by us, UAL Corporation, Yellow Jacket Acquisition
Corp. or held by a dissenting stockholder exercising appraisal rights, will
represent the right to receive the cash into which such issued and
outstanding shares may be converted. At the effective time, all such shares
of our common stock will be canceled and cease to exist, and each holder of
a certificate representing any such shares will cease to have any voting or
other rights with respect to such shares, except the right to receive upon
the surrender of such certificate the cash consideration payable under the
merger agreement, without interest.

      We will designate a bank or trust company to act as exchange agent
and, as soon as possible after the effective time of the merger, mail a
letter of transmittal to you. The letter of transmittal will tell you how
to surrender your US Airways common stock certificates in exchange for the
$60.00 per share cash merger consideration. You should not send in your US
Airways common stock certificates until you receive a transmittal form. You
should send them only pursuant to instructions set forth in the letter of
transmittal. In all cases, the merger consideration will be provided only
in accordance with the procedures set forth in the merger agreement and
such letters of transmittal.

      We strongly recommend that certificates for common stock and letters
of transmittal be transmitted only by registered United States mail, return
receipt requested, appropriately insured. Holders of common stock whose
certificates are lost will be required to make an affidavit identifying
such certificate or certificates as lost, stolen or destroyed and, if
required by us, to post a bond in such amount as we may reasonably require
to indemnify against any claim that may be made against us with respect to
such certificate.

      Any merger consideration payable in respect of certificates for our
common stock that have not been surrendered prior to two years after the
effective time of the merger (or immediately prior to such earlier date on
which any merger consideration would otherwise escheat to or become the
property of any governmental entity) shall, to the extent permitted by
applicable law, become the property of the surviving corporation, free and
clear of all claims or interest of any person previously entitled thereto.
In addition, the surviving corporation will not be liable to any person in
respect of any merger consideration delivered to a public official pursuant
to any applicable abandoned property, escheat or similar law.

      Stock Options. We have agreed to take all actions necessary so that,
immediately prior to the completion of the merger, all options to acquire
shares of our common stock granted under any of our option plans become
fully vested and exercisable. At the effective time, outstanding options
will be canceled and will be converted into the right to receive a cash
payment from us equal to $60.00 minus the exercise price of the option,
multiplied by the number of shares subject to the option.


REPRESENTATIONS AND WARRANTIES

      The merger agreement contains representations and warranties with
respect to us and our subsidiaries relating to, among other things:

      o     organization, qualification, capitalization and similar
            corporate matters;

      o     authorization, execution, delivery, performance and
            enforceability of, and required consents, approvals and
            authorizations relating to, the merger agreement and related
            matters;

      o     the absence of violation of organizational documents, laws or
            contracts as a result of entering into the merger agreement;

      o     the accuracy of the information contained in the reports and
            financial statements that we and our principal operating
            subsidiary file with the Securities and Exchange Commission
            ("SEC") and other governmental authorities;

      o     the absence of material adverse changes since December 31, 1999;

      o     the absence of material legal proceedings;

      o     contracts and the absence of any material default in these
            contracts;

      o     compliance with applicable laws, permits and agreements since
            January 1, 1997;

      o     the absence of changes in our benefit plans and employment
            agreements since December 31, 1999;

      o     certain environmental, labor and employment, intellectual
            property, employee welfare and benefit plans and tax matters;

      o     aircraft owned, leased or operated;

      o     takeoff and landing rights and foreign operating rights;

      o     the business combination provision in our charter;

      o     the Board's approval of the merger for purposes of Section 203
            of the Delaware General Corporation Law;

      o     the stockholder vote required to adopt the merger agreement;

      o     the absence of undisclosed broker's fees;

      o     the receipt by us of a fairness opinion from Salomon Smith
            Barney Inc.; and

      o     the accuracy of certain information provided by us to UAL
            Corporation.

      The merger agreement contains customary representations and
warranties by UAL Corporation and Yellow Jacket Acquisition Corp. relating
to, among other things:

      o     their organization and similar corporate matters;

      o     the absence of violation of organizational documents, laws or
            contracts as a result of entering into the merger agreement;

      o     their authorization, execution, delivery, performance and
            enforceability of, and required consents, approvals and
            authorizations relating to, the merger agreement and related
            matters;

      o     the creation of Yellow Jacket Acquisition Corp. solely for the
            purpose of engaging in the transactions contemplated by the
            merger agreement;

      o     the sufficiency of capital resources available to UAL
            Corporation to pay the merger consideration; and

      o     the absence of any ownership of our shares of common stock for
            purposes of section 203 of the Delaware General Corporation
            Law.

      The foregoing representations and warranties are subject, in some
cases, to specified exceptions and qualifications. The representations and
warranties of each of the parties will expire upon completion of the
merger.

CERTAIN COVENANTS

      Under the merger agreement, we have agreed that from the date of the
merger agreement until the effective time of the merger, we will (and we
will require our subsidiaries to) conduct business only in the ordinary
course consistent with past practice and that we will (and we will require
our subsidiaries to) use reasonable efforts to comply with all applicable
laws, rules and regulations and to preserve our assets and third party
relationships. In addition, we have agreed that we will not (and will not
permit any of our subsidiaries to) take any of the following actions,
except for actions specifically contemplated by the merger agreement or
disclosed to UAL Corporation prior to the signing of the merger agreement,
without UAL Corporation's prior written consent, which consent shall not be
unreasonably withheld by UAL Corporation:

      o     declare, set aside or pay any dividends on, or make any other
            distributions in respect of, our capital stock, other than
            dividends by one of our wholly-owned subsidiaries to its
            parent;

      o     purchase, redeem or otherwise acquire any shares of our capital
            stock or of our subsidiaries capital stock;

      o     split, combine, or reclassify any of our capital stock or issue
            or authorize the issuance of any other securities in respect
            of, in lieu of, or in substitution for our capital stock;

      o     issue, deliver, sell, pledge or otherwise encumber any shares
            of our capital stock, any other equity or voting interests or
            any securities convertible into, or exchangeable for, or rights
            to acquire shares of our capital stock, except for the issuance
            of shares as a result of the exercise of stock options existing
            when we entered into the merger agreement;

      o     amend our certificate of incorporation or bylaws;

      o     acquire or agree to acquire (i) by merging or consolidating
            with or by purchasing all or a substantial portion of the
            assets of any other person or the assets constituting a
            business or a corporation, joint venture or division thereof,
            other than the merger of any of our wholly owned subsidiaries
            into us or into any of our other wholly owned subsidiaries or
            (ii) any asset, other than (v) aircraft or engines in
            accordance with our fleet plan which was disclosed to UAL
            Corporation prior to the signing of the merger agreement, (w)
            assets acquired in the ordinary course consistent with past
            practice for a purchase price equal to or less than $1,000,000,
            (x) subject to certain restrictions, assets acquired in
            response to unanticipated operational, competitive or economic
            factors, (y) assets acquired reasonably in response to a
            regulatory requirement or mandate or (z) assets acquired in
            accordance with our capital budget;

      o     subject to certain exceptions, sell, lease, license or sell and
            lease back, mortgage or otherwise encumber or subject to any
            lien or otherwise dispose of any of our properties or assets or
            interests therein;

      o     repurchase or prepay or incur any indebtedness or guarantee any
            indebtedness of another person except, (A) short-term
            borrowings incurred in the ordinary course of business
            consistent with past practice and (B) the incurrence of
            indebtedness in the ordinary course consistent with past
            practice, in order to, among other things, (i) finance the
            purchase or leasing of new aircraft or engines as disclosed to
            UAL Corporation prior to the signing of the merger agreement,
            (ii) refinance indebtedness incurred to finance the purchase or
            leasing of aircraft on terms no less favorable to us than the
            terms of the indebtedness to be refinanced or (iii) purchase
            aircraft currently leased to us pursuant to the terms of the
            applicable lease agreement;

      o     make any loans, advances or capital contributions to or
            investments in any person other than (i) in the ordinary course
            consistent with past practice, (ii) to, or in, a direct or
            indirect wholly owned subsidiary or (iii) to the employee stock
            ownership trust in an amount not to exceed the amount of
            principal and interest then due and owing under the ESOP loan;

      o     subject to certain exceptions, incur or commit to incur any
            capital expenditures, obligations or liabilities (x) with
            respect to 2000, in any manner materially inconsistent with our
            capital budget for 2000 and (y) with respect to 2001, (i) that
            in the aggregate exceed the aggregate amount of capital
            expenditures set forth in our capital budget for 2000 or (ii)
            that individually exceed $20,000,000;

      o     except as required by law, (i) pay, discharge or settle any
            claims, liabilities or obligations other than the payment,
            discharge or satisfaction in the ordinary course consistent
            with past practice or as required by their terms or incurred
            since the date of the merger agreement in the ordinary course
            consistent with past practice, (ii) waive, release, grant or
            transfer any right of material value other than in the ordinary
            course consistent with past practice or (iii) waive, release,
            grant or transfer any material benefit under any material
            confidentiality, standstill or similar agreement;

      o     enter into, modify, amend or terminate any portion, aspect or
            whole collective bargaining agreement or other labor union
            contract, other than immaterial modifications in the ordinary
            course, modifications pursuant to "parity plus 1% review" or as
            required by a change in the applicable law;

      o     enter into, modify, amend or terminate any benefit agreement or
            plan providing for the payment of severance, compensation or
            benefits upon the termination of employment, other than
            increases in cash compensation, immaterial changes and
            termination arrangements for employees (other than officers),
            each in the ordinary course consistent with past practice, and
            other than actions taken by us to retain or attract employees
            in key positions consistent with our retention plan (under
            which, subject to certain limitations, (1) we may (a) grant
            restricted stock up to amounts consistent with our past
            practices for purposes of hiring, promotion and selected
            retention needs, (b) provide a compensation package that is
            consistent with our past practice to newly appointed officers
            and (c) pay cash retention bonuses to certain non-officer
            employees up to an agreed upon amount and (2) UAL Corporation
            will pay a severance benefit equal to six-months of base salary
            to any non-union, non-officer employee who, within 6 months
            following the merger, is asked to relocate and declines to do
            so);

      o     enter into, modify, amend or terminate any material contract to
            which we or one of our subsidiaries is a party, other than
            modifications, amendments or terminations in the ordinary
            course consistent with past practice;

      o     except as required by law or any provision of a benefit
            agreement, plan or other contract and subject to certain
            exceptions take any action to (i) fund payment of compensation
            or benefits under any benefit agreement, plan or other contract
            or (ii) to accelerate the vesting or payment of any
            compensation or benefit under any benefit agreement, plan or
            other contract;

      o     materially decrease any levels of employee training or costs
            incurred in connection with such training;

      o     fail to keep in effect any governmental route authority used as
            of the date of the merger agreement or make any material route
            changes, except for such failures that occur or changes that
            are made in the ordinary course of business consistent with
            past practice;

      o     fail to maintain insurance at levels, at least comparable to
            current levels;

      o     establish any new pilot or flight attendant domicile cities;

      o     take action or fail to take action which would result in our
            loss of slots with an aggregate value in excess of $7,500,000;

      o     take any action that would be expected to result in our
            representations and warranties becoming untrue in a material
            respect or any condition to the merger not being satisfied; or

      o     settle any action relating to any material tax, make any
            material tax election or, subject to certain exceptions, make
            any changes to our tax accounting methods unless required by a
            change in generally accepted accounting principles, SEC
            accounting regulations or guidelines or applicable law.

      For purposes hereof, the reasonableness of withholding consent shall
be determined from the point of view of UAL Corporation, taking into
account the relative burden to UAL Corporation and the benefit to us of
granting such consent and any other factors which UAL Corporation
determines in good faith to be, and which are, of reasonable consequence to
it in connection with its determination.


OTHER AGREEMENTS OF US AIRWAYS, UAL CORPORATION AND YELLOW JACKET
ACQUISITION CORP.

      In addition to our agreements regarding the conduct of our business,
we and UAL Corporation have also agreed to take several other actions:

      o     we have agreed to promptly notify UAL Corporation upon the
            earlier of (x) receipt of notice of any action pending against
            us or any of our subsidiaries in respect of any material tax
            and (y) upon any other action in respect of taxes becoming
            material to us and our subsidiaries;

      o     we have agreed to confer with UAL Corporation on a regular
            basis regarding operational and other material matters and to
            advise UAL Corporation of any change or event for which we have
            knowledge which would be expected to have a material adverse
            effect;

      o     we have agreed, along with UAL Corporation, subject to
            confidentiality restrictions, to give each other copies of all
            filings with any governmental entity in connection with the
            merger agreement and the transactions contemplated by the
            merger agreement;

      o     we have agreed to use our reasonable best efforts to cause the
            stockholders meeting to be held as promptly as practicable
            following the date of the merger agreement;

      o     we have agreed to afford to UAL Corporation and its
            representatives reasonable and prompt access to our
            information, assets and personnel and to make available to UAL
            Corporation on a timely basis a copy of each material document
            received by us pursuant to the requirements of domestic or
            foreign laws and all other information concerning our business,
            properties and personnel, subject to confidentiality or legal
            restrictions;

      o     UAL Corporation has agreed, in order to complete the merger, to
            effect the divestiture of the assets and the provision of
            assets, facilities and services as described in Exhibit A to
            the merger agreement and we have agreed, along with UAL
            Corporation, to use all reasonable efforts to take all actions
            that are necessary, proper or advisable to consummate the
            merger, including (i) taking all reasonable action to cause the
            conditions precedent to the merger to be satisfied, (ii)
            obtaining all necessary governmental consents, authorizations
            and approvals, and (iii) obtaining all necessary third party
            consents and approvals;

      o     we have agreed, along with UAL Corporation, to promptly make
            all necessary filings, other submissions and registrations with
            governmental entities, including under the Hart- Scott-Rodino
            Act;

      o     we have agreed, along with UAL Corporation, to give each other
            prompt notice of any of our representations or warranties
            becoming materially untrue or inaccurate;

      o     UAL Corporation and Yellow Jacket Acquisition Corp. have agreed
            to arrangements regarding liability, indemnification and
            insurance matters with respect to our officers and directors;

      o     we have agreed, along with UAL Corporation, to consult with
            each other before issuing any press release or other public
            statements relating to the merger; and

      o     UAL Corporation has agreed that for a period of two years, the
            surviving corporation will offer continued employment to all of
            our employees (other than officers), other than employees
            discharged for cause or performance related reasons or
            employees of a subsidiary that is sold or transferred to a
            third party. Following the two year period, UAL Corporation has
            agreed to provide all of our former non-officer, non-union
            employees of us and our subsidiaries the same job security
            protection, if any, as provided to similarly-situated employees
            of UAL Corporation.


NO SOLICITATION OF TRANSACTIONS

      We have agreed that we will not (and will cause our subsidiaries not
to) solicit, initiate or encourage, or take any action knowingly to
facilitate, any inquiries or proposals relating to, or that is reasonably
likely to lead to, any direct or indirect acquisition, in one transaction
or a series of transactions, of assets or businesses that constitute or
represent 20% or more of our total revenue, operating income, EBITDA or
assets, including our subsidiaries' assets, taken as a whole, or 20% or
more of the outstanding shares of our capital stock or capital stock of, or
other equity or voting interests in, any of our subsidiaries directly or
indirectly holding the assets or businesses referred to above (any proposal
or offer of this nature will be referred to as a "Takeover Proposal").

      We have also agreed that we will not (and will cause our subsidiaries
not to) enter into, continue or otherwise participate in any discussions or
negotiations regarding, or furnish to any person any information with
respect to, or cooperate in any way with, any Takeover Proposal, other than
a Takeover Proposal made by UAL Corporation. Notwithstanding the foregoing
restriction, the Board may, at any time prior to our stockholders adoption
of the merger agreement, in response to a bona fide written Takeover
Proposal which was not solicited in violation of the above restrictions and
which the Board determines in good faith is reasonably likely to result in
the Board determining to change its recommendation of the merger agreement
or lead to a Takeover Proposal that is superior from a financial view to
you, furnish such person with information with respect to us and our
subsidiaries pursuant to a customary confidentiality agreement and
participate in discussions and negotiations with such person regarding the
Takeover Proposal.

      We must promptly advise UAL Corporation of any Takeover Proposal or
any requests for information or inquiries we reasonably believe could lead
to a Takeover Proposal and the terms and conditions of such request,
Takeover Proposal or inquiry. We must keep UAL Corporation informed in all
material respects of the status and details of any such request, Takeover
Proposal or inquiry.

      Neither the Board nor any committee of the Board may (i) withdraw (or
modify in a manner adverse to UAL Corporation) its recommendation of the
merger or recommend a Takeover Proposal, other than a Takeover Proposal
made by UAL Corporation, unless the Board or a committee of the Board
determines in good faith, based on such matters it deems appropriate, after
consultation with legal counsel, that failure to take such action would be
reasonably likely to result in a breach of its fiduciary duties, (ii) adopt
or approve a Takeover Proposal or withdraw its approval of the merger,
(iii) cause or permit us to enter into any agreement that constitutes or is
reasonably likely to lead to a Takeover Proposal or (iv) agree or resolve
to do any of the foregoing. Notwithstanding the foregoing, the Board shall
not be prohibited from taking or disclosing a position contemplated by Rule
14e-2(a) of the Securities Exchange Act of 1934, as amended, or making any
disclosure to you if failure to do so, in the Board's good faith judgment
after consultation with counsel, would be inconsistent with applicable law.

      We may, at any time prior to obtaining stockholder approval, in
response to any unsolicited bona fide binding written offer made by a third
party that if consummated would result in such third party (or in the case
of a direct merger between such third party and us, the stockholders of
such third party) acquiring, directly or indirectly, more than 50% of the
voting power in us or all or substantially all of our assets and the assets
of our subsidiaries, taken as a whole, for consideration consisting of cash
and/or securities that our Board determines in its good faith judgment
(after consultation with a financial advisor of nationally recognized
reputation) to be superior from a financial view to you, taking into
account, among other things, any changes to the terms of the merger
agreement proposed by UAL Corporation in response to such superior proposal
or otherwise (any such proposal will be referred to as a "Superior
Proposal"), terminate the merger agreement and concurrently enter into an
acquisition agreement constituting or related to, or which is intended to
or is reasonably likely to lead to, any Takeover Proposal; provided,
however, that we can not terminate the agreement unless we have complied in
all material respects with the restrictions on solicitation described above
and paid the termination fee and expenses owed to UAL Corporation; and
provided further, that we can not terminate the agreement without first
giving UAL Corporation five business day's notice that we have received a
Superior Proposal, specifying the terms and conditions thereof.


EMPLOYEE BENEFIT MATTERS

      With respect to our employees, or our subsidiaries' employees, that
are classified as regular permanent employees as of the date of the merger
and who are in jobs that will not be covered by collective bargaining or
other labor union contracts after the merger, UAL Corporation has agreed as
follows:

o     to give such employees full credit, for purposes of eligibility,
      vesting and benefit accrual under any employee benefit plans or
      arrangements maintained by UAL Corporation, the surviving corporation
      and their respective affiliates, for such employees' service with us
      to the same extent recognized by us immediately prior to the merger
      (except where it would result in a duplication of benefits);

o     to (i) waive all limitations as to preexisting conditions, exclusions
      and waiting periods with respect to participation and coverage
      requirements applicable to such employees under any welfare benefit
      plans in which such employees may be eligible to participate after
      the merger to the extent waived under the applicable plan immediately
      prior to the merger and (ii) provide such employees with credit for
      any co-payments and deductibles paid prior to the merger in
      satisfying any applicable deductible or out-of-pocket requirements
      under any welfare plans in which such employees are eligible to
      participate after the merger; and

o     to honor our benefit plans and benefit agreements in accordance with
      their terms. For a period of one year immediately following the
      merger, UAL Corporation agrees to provide to such employees employed
      by UAL Corporation employee benefit plans and arrangements (excluding
      equity-based compensation) not materially less favorable in the
      aggregate than those provided to such employees immediately prior to
      the merger and eligibility for stock option grants on the same basis
      as similarly situated employees of UAL Corporation and its
      subsidiaries.


CONDITIONS TO THE MERGER

      Each party's obligation to complete the merger is subject to a number
of conditions, including the following:

o     adoption by our stockholders of the merger agreement;

o     the expiration or termination of the waiting periods under the
      Hart-Scott-Rodino Act and the receipt of any other necessary
      approvals or clearances under applicable competition, merger control,
      antitrust or similar law or regulation;

o     the absence of any temporary restraining order, preliminary or
      permanent injunction, or other order or decree by any court of
      competent jurisdiction or other legal restraint or prohibition
      preventing the merger.

      Our obligation to complete the merger is subject to additional
conditions, including the accuracy of the representations and warranties of
UAL Corporation and Yellow Jacket Acquisition Corp. that are qualified as
to materiality and the material accuracy of the representations and
warranties of UAL Corporation and Yellow Jacket Acquisition Corp. that are
not qualified as materiality, and the performance in all material respects
of their obligations under the merger agreement.

      The obligations of UAL Corporation and Yellow Jacket Acquisition Corp. to
complete the merger are subject to additional conditions, including the
following:

o     the accuracy of our representations and warranties that are qualified
      as to materiality and the material accuracy of our representations
      and warranties that are not qualified as materiality, and the
      performance in all material respects of our obligations under the
      merger agreement; and

o     the absence of any legal restraint that has the effect of (i)
      prohibiting or limiting in any material respect the ownership or
      operation of a material portion of our or UAL Corporation's business,
      (ii) prohibiting UAL Corporation from controlling in any material
      respect a substantial portion of our business or operations and (iii)
      imposing material limitations on UAL Corporation's ability to
      acquire, hold or exercise full rights of ownership of shares of our
      common stock; and

o     we or UAL Corporation having obtained (i) all material consents,
      approvals or authorizations of governmental entities legally required
      in connection with the merger agreement or the transactions
      contemplated by the merger agreement and (ii) all other governmental
      or third party consents, approvals or authorizations required in
      connection with the merger agreement, except, in the case of clause
      (ii), for those the failure of which to be obtained would not be
      expected to result in a material adverse effect on us or prevent or
      materially impede or delay consummation of the merger.

      The obligations of UAL Corporation and Yellow Jacket Acquisition Corp.
to complete the merger are not subject to a financing condition.


TERMINATION OF THE MERGER AGREEMENT

      The merger agreement may be terminated, whether before or after
receiving stockholder approval, without completing the merger, under the
following circumstances:

o     Written Mutual Consent - by written mutual consent of the parties;

o     Delay - by us or UAL Corporation if the merger is not consummated by
      December 31, 2000; provided, however, that this deadline may be
      extended to August 1, 2001 if all conditions to consummation of the
      merger, other than the adoption of the merger agreement by our
      stockholders, the receipt of regulatory approvals or consents or the
      absence of a legal restraint, have been fulfilled by December 31,
      2000;

o      Legal Impediments

      -     by us or UAL Corporation if a law or court order prohibiting
            the merger becomes final and cannot be appealed, so long as a
            breach by the party seeking to terminate is not the principal
            reason for such event having occurred; and

      -     by UAL Corporation if (A) any legal restraint that has the
            effect of (i) prohibiting or limiting in any material respect
            the ownership or operation of a material portion of the
            business of US Airways or UAL Corporation, (ii) prohibiting UAL
            Corporation from controlling in any material respect a
            substantial portion of the business or operations of US Airways
            or (iii) imposing material limitations on UAL Corporation's
            ability to acquire, hold or exercise full rights of ownership
            of shares of US Airways common stock shall be in effect and
            shall have become final and nonappealable and (B) a breach by
            UAL Corporation is not the primary reason that such event
            occurred.

o     Failure to Obtain Stockholder Approval - by us or UAL Corporation if
      our stockholders do not adopt the merger agreement at a duly convened
      stockholder meeting;

o     Recommendation - by UAL Corporation if our Board, acting in
      accordance with certain standards specified in the merger agreement
      relating to its fiduciary duties, withdraws or modifies, in a manner
      adverse to UAL Corporation, its recommendation or declaration of the
      advisability of the merger agreement or the merger or recommends an
      alternative transaction;

o      Breach

      -     by UAL Corporation if (i) we materially breach our
            representations, warranties or covenants under the merger
            agreement and are unable to cure the breach after receiving
            written notice and an opportunity to cure the breach and (ii)
            UAL Corporation has not previously been deemed to have waived
            such breach;

      -     by us if UAL Corporation or Yellow Jacket Acquisition Corp.
            materially breaches its representations, warranties or
            covenants under the merger agreement and is unable to cure the
            breach after receiving written notice and an opportunity to
            cure the breach; or

o     Fiduciary Termination - by us, in accordance with the provisions more
      fully described in the fourth paragraph of the section entitled
      "Summary of the Merger Agreement- No Solicitation of Transactions" on
      page 41, which provides, at any time prior to obtaining stockholder
      approval, in response to an unsolicited bona fide binding written
      offer made by a third party to acquire more than 50% of our common
      stock or all or substantially all our assets for consideration that
      our Board determines in its good faith judgment to be superior from a
      financial view to our stockholders, provided that we have complied in
      all material respects with the no solicitation covenant of the merger
      agreement and we have paid the applicable termination fee and expense
      reimbursement amount to UAL Corporation and we concurrently enter
      into an acquisition agreement with a third party.

      In the event of termination of the merger agreement by either party
under the above events, the merger agreement shall become void and have no
effect; provided, however that this will not relieve a breaching party from
liability for a prior wilful breach of the merger agreement.


TERMINATION FEES

      We have agreed to pay to UAL Corporation a termination fee of $150
million, plus up to a maximum of $10 million for reimbursement of UAL
Corporation's expenses, if:

o     the merger agreement is terminated by UAL Corporation or us under
      circumstances where:

      --    the termination was due to (i) our stockholders failing to
            approve the merger or (ii) the merger failing to be completed
            by the applicable termination date;

      --    prior to such termination, a third party made a proposal to
            acquire 20% or more of our common stock or a business that
            constitutes 20% or more of our total revenue, operating income,
            EBITDA or assets; and

      --    within 12 months of such termination, we consummate or enter
            into an agreement with a third party providing for the
            acquisition of 40% or more of our common stock or a business
            that constitutes 40% or more of our total revenue, operating
            income, EBITDA or assets.

o     the merger agreement is terminated by UAL Corporation because our
      Board withdraws or modifies, in a manner adverse to UAL Corporation,
      its recommendation or declaration of the advisability of the merger
      agreement or the merger or recommends any alternative transaction;

o     The merger agreement is terminated by us in response to an
      unsolicited bona fide binding written offer made by a third party to
      acquire more than 50% of our common stock or all or substantially all
      our assets for consideration that our Board determines in its good
      faith judgment to be superior from a financial view to our
      stockholders and the Board determines, after legal consultation, that
      failure to do so would likely result in a breach of the Board's
      fiduciary duty and we concurrently enter into an acquisition
      agreement with a third party.

      UAL Corporation has agreed to pay us a termination fee of $50 million
in the event the merger agreement is terminated for any reason other than
(i) our Board's withdrawal or modification, in a manner adverse to UAL
Corporation, of its recommendation or declaration of the advisability of
the merger agreement or the merger, (ii) our material breach of our
representations, warranties, or covenants, or (iii) our termination in
response to an unsolicited binding written offer made by a third party for
consideration that our Board determines in its good faith judgment to be
superior from a financial view to stockholders. This fee will have to be
repaid by us to UAL Corporation if subsequent to such termination, UAL
Corporation becomes entitled to the payment of a termination fee as
described in the immediately preceding paragraph.


EXPENSES

      Except as described above, all fees and expenses in connection with
the merger agreement and the merger will be paid by the party incurring
such expense.


AMENDMENT; WAIVER

      The merger agreement may be amended by the parties at any time;
provided, however, that after stockholder approval has been obtained, there
shall be made no amendment that by law requires further approval by
stockholders of the parties without the further approval of such
stockholders. At any time prior to the effective time of the merger, any
party may extend the time for the performance of any of the obligations or
other acts of the other party, waive any inaccuracies in the other party's
representations and warranties or waive the other party's compliance with
any of the agreements or conditions contained in the merger agreement;
provided, however, that after stockholder approval has been obtained, there
shall be made no waiver that by law requires further approval by
stockholders of the parties without the further approval of such
stockholders.


                             SUMMARY OF DC AIR

      In connection with the agreement by UAL Corporation to divest certain
of our assets located principally at Reagan Washington National Airport
(the "Assets"), we and UAL Corporation have entered into a memorandum of
understanding with Mr. Robert L. Johnson, confirming the mutual
understanding of the parties with respect to the proposed acquisition by an
entity to be formed by Mr. Johnson of certain of our assets and the
creation of a new carrier to be called DC Air.

COMPETITIVE PRESENCE IN WASHINGTON, D.C.

      DC Air will be based at Reagan Washington National Airport and will
be composed of the majority of our route structure currently served from
Reagan Washington National Airport. Initially offering jet, regional jet
and turboprop services, DC Air intends to transition itself to all jet
service. Initially serving 44 airports with approximately 222 daily
departures (111 daily round trips from Reagan Washington National Airport),
it is expected that DC Air will carry approximately three million
passengers in its first year of operation.

DC AIR ASSET CONFIGURATION AND TRANSITION PLAN

      Pursuant to the terms of the memorandum of understanding, all of the
outstanding stock of PSA Airlines, Inc. ("PSA"), one of our wholly-owned
commuter subsidiaries, will be transferred to DC Air upon consummation of
the merger. Prior to such transfer, PSA will be reorganized to consist only
of the existing leases on eight Dornier 328 aircraft, PSA's operating
certificates, employees needed to operate the eight Dornier 328 aircraft
and certain management employees necessary to appropriately manage DC Air's
operations. Additionally, DC Air will obtain the availability of 19
regional jets operated by our Express affiliates pursuant to contract
rights that will be transferred to DC Air. Also, in order to provide DC Air
time to obtain its own jet aircraft operated by its own trained crews, UAL
Corporation or its subsidiaries will wet-lease ten 737-200 jet aircraft to
DC Air for up to four years, subject to DC Air's right to terminate on four
months' notice. A wet-lease is an arrangement where one entity furnishes an
aircraft, crew, aircraft maintenance, insurance, fuel and other services
related to the operation of the aircraft in revenue service to another
entity in exchange for rental payments. The wet-lease rates are to be at
market-rates as determined by a formula based on specified recent lease
transactions, labor rates derived from specified labor contracts, and UAL
Corporation's line maintenance costs. If needed, UAL Corporation will
provide DC Air with interim employees for up to six months at its cost
while DC Air hires and trains personnel to fill open positions.

      DC Air will also obtain approximately 119 air carrier (jet) slots,
103 commuter slots at Reagan Washington National Airport that are currently
held by us. DC Air will assume leases on necessary airport facilities both
at Reagan Washington National Airport and at other served airports. Such
facilities include gates, ticket counters, ramps, ground handling equipment
and line maintenance infrastructure.

      If requested by DC Air for periods ranging from five to seven years,
UAL Corporation will provide DC Air with various services at market rates.
These services include such items as fuel, station handling, occasional use
gate arrangements, access to club facilities, interline ticketing/baggage
arrangements. In addition, UAL Corporation has agreed to provide consulting
support for a period of two years.

      We have agreed that the consummation of the transaction contemplated
by the memorandum of understanding will satisfy UAL Corporation's
obligation, pursuant to the first sentence of Section 5.03(a) of the merger
agreement, to divest the Assets, and provide the assets, facilities and
services set forth on Exhibit A to the merger agreement, but will not
satisfy any other obligation of UAL Corporation under Section 5.03(a) of
the merger agreement.

      Mr. Johnson will pay a purchase price of $141.2 million and will
assume all liabilities principally related to the operations of DC Air. He
may not assign his rights or obligations under the memorandum of
understanding. Should he within three years of startup sell a majority
equity interest in DC Air (other than through a public offering) or should
he dispose of substantially all of its assets, any value received above the
purchase price must be paid over to UAL Corporation.

      The obligation of Mr. Johnson to consummate the transaction
contemplated by the memorandum of understanding is subject to a financing
condition. The execution of the definitive agreement relating to DC Air is
conditioned upon the receipt by Mr. Johnson of binding commitment letters
relating to such financing that are reasonably acceptable to UAL
Corporation. The memorandum of understanding terminates (i) on any
termination of the merger agreement, (ii) at the election of any of the
three parties of the memorandum of understanding if a definitive agreement
is not achieved within 90 days and (iii) at any time at the election of any
two of the three parties.

      The foregoing description is based on the terms of the memorandum of
understanding. However, the parties are in the process of preparing
definitive documentation and there is no assurance that the terms of the DC
Air transaction will not change prior to either finalization of the
definitive documentation or consummation of the DC Air transaction.

      Consummation of the transactions contemplated by the memorandum of
understanding is subject to regulatory review and approval by various
regulatory authorities including, without limitation, the Department of
Transportation, which will conduct a review of the financial, managerial,
compliance and citizenship status of DC Air prior to its granting the
requisite economic authority to DC Air, and the Federal Aviation
Administration, which will conduct a safety fitness analysis on DC Air
prior to the issuance of certain operating certificates to DC Air. The
Federal Aviation Administration must also provide written confirmation of
the transfer of slots at Reagan Washington National Airport to DC Air. In
addition, the transfer of assets (including the slots) to DC Air is subject
to the Hart-Scott-Rodino Act, which provides that such transactions may not
be completed until certain information has been submitted to the Department
of Justice and the Federal Trade Commission and specified waiting period
requirements have been satisfied. We believe that the regulatory process
can be completed by January 1, 2001.



                         REGULATORY MATTERS

      Set forth below is a summary of the regulatory requirements affecting
completion of the merger.

ANTITRUST CONSIDERATIONS

      The Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended,
provides that transactions such as the merger may not be completed until
certain information has been submitted to the Antitrust Division of the
Department of Justice and the Federal Trade Commission and specified
waiting period requirements have been satisfied. We and UAL Corporation
have made our respective pre-merger notification filings pursuant to the
Hart-Scott- Rodino Act, and the waiting period is currently scheduled to
expire on July 14, 2000, subject to possible extension by the Antitrust
Division or the Federal Trade Commission. Prior to the expiration of the
initial waiting period, the Department of Justice on July 14, 2000 issued
separate Request(s) for Additional Information and Documentary Material to
UAL Corporation and to us. Issuance of such requests extends the waiting
period until twenty days following the filing by the last responding party
of a certificate of substantial compliance. Compliance with the requests
will require extensive document productions and information submissions
that have not yet been completed by either party.

      Both we and UAL Corporation have received inquiries from a number of
state antitrust authorities and are cooperating with their investigations.
While no formal state approvals are required, as is the case with other
private litigants, the state authorities have the capacity to seek judicial
injunctions under the federal antitrust laws.

      The expiration or earlier termination of the Hart-Scott-Rodino Act
waiting period would not preclude the Antitrust Division, the Federal Trade
Commission or state authorities from challenging the merger on federal
antitrust grounds. We and UAL Corporation believe that the merger, after
giving effect to the transactions contemplated by the merger agreement and
the memorandum of understanding with Mr. Johnson, will not violate federal
antitrust laws. If we do not complete the merger within 12 months after the
expiration or earlier termination of the Hart-Scott-Rodino Act waiting
period, we and UAL Corporation would be required to submit new information
to the Antitrust Division of the Department of Justice and the Federal
Trade Commission , and a new waiting period would have to expire or be
terminated before we could complete the merger.

      We and UAL Corporation anticipate that the Antitrust Division will
seek the disposition of certain assets at Reagan Washington National
Airport. We believe that the transaction with DC Air (as described above on
page 47 under the section entitled "Summary of DC Air") should satisfy any
such requirements. The regulatory process may, however, impose certain
modifications and/or additions to our and UAL Corporation's current
proposals. We and UAL Corporation are committed to completing the
transaction. We believe that efforts sufficient to satisfy such regulatory
requirement can be concluded by January 1, 2001 and that the merger will be
completed promptly following satisfaction of such requirement. However, we
cannot assure you that such requirements will be satisfied or, if
satisfied, the date by which they will be satisfied.


DEPARTMENT OF TRANSPORTATION

      As the regulatory agency with transportation expertise, we anticipate
that the Department of Transportation will conduct its own independent
analysis of the merger and, as it has done in the past with respect to
other airline mergers, provide the Antitrust Division with its views on the
transaction and any other information that it deems relevant. Both we and
UAL Corporation have received requests from the Department of
Transportation to cooperate with it in providing certain information in
order to enable it to perform its review of the merger and anticipate
responding to such requests on a timely basis. In response to the
Department of Transportation's request we, on July 27, 2000, provided the
Department of Transportation a copy of the Hart- Scott-Rodino pre-merger
notification filing that had previously been submitted to the Department of
Justice. We anticipate responding to any additional Department of
Transportation requests on a timely basis. The Department of
Transportation's approval must be obtained regarding economic authority for
DC Air and the transfer of our international route and economic authorities
to UAL Corporation or one of its subsidiaries. The carriers must also
notify the Department of Transportation and provide certain information
about any substantial change in operations, management, or ownership. We
believe that the Department of Transportation's review of the merger and
the transactions contemplated thereby can be completed by January 1, 2001.
However, we cannot assure you of the date by which such review will be
completed.


FEDERAL AVIATION ADMINISTRATION

      In addition to matters described above with respect to DC Air, the
Federal Aviation Administration must also provide written confirmation of
slot transfers. "Slot transfers" occur when slots (the operational
authority to conduct a IFR (instrument flight rules) landing or take- off
operation at one of the airports designated as a high density traffic
airport pursuant to subpart K, Part 93, Title 14 of the Code of Federal
Regulations) are bought, sold, leased, or traded and thereby transferred
from the transferor to the recipient. We believe that written confirmation
from the Federal Aviation Administration can be received by January 1,
2001. However, we cannot assure you of the date by which such written
confirmation will be received. The Federal Aviation Administration must
also be notified of the acquisition of us and our FAA operating
authorities.


EUROPEAN COMMUNITIES FILING

      Under Council Regulation (EEC) No. 4064/89, as amended, certain
mergers, including the present merger, may not be completed until the
Commission of the European Communities has granted its approval or such
approval has been deemed to have been granted. We believe that efforts
sufficient to satisfy the Commission's requirements will be completed and
that the Commission's approval will be obtained by January 1, 2001.
However, we cannot assure you that such requirements will be satisfied or,
if satisfied, the date by which they will be satisfied.


OTHER REGULATORY MATTERS

      We and our subsidiaries have obtained from various regulatory
authorities franchises, permits and licenses which may need to be renewed,
replaced or transferred as a result of the merger. Approvals, consents or
notifications may be required in connection with such renewals,
replacements or transfers.

      We are not aware of any material governmental or regulatory approvals
or actions that may be required for completion of the merger other than as
described above. If any other governmental or regulatory approval or action
is or becomes required, we currently contemplate that we would seek that
additional approval or action.



                         CERTAIN LITIGATION

      Commencing on May 24, 2000, we, along with several of our officers
and directors and, in all suits other than one, UAL Corporation, have been
named as defendants in eight putative class actions filed in the Court of
Chancery of the State of Delaware in and for the New Castle County (the
"Court"). The plaintiffs allege that they have been and will be damaged by
the agreement reached between us, UAL Corporation, and Mr. Johnson with
respect to the acquisition by an entity to be established by Mr. Johnson of
certain assets located at Reagan Washington National Airport that are to be
divested by UAL Corporation upon consummation of the merger. The plaintiffs
allege, among other things, that the individual defendants have breached
their duty of loyalty and their fiduciary duties in entering into the
agreement with Mr. Johnson. Plaintiffs seek, among other things,
declaratory and injunctive relief, unspecified compensatory damages and
attorney's fees.

      We were also named as a nominal defendant in a derivative action
filed in the Court of Chancery based upon the same allegations. The
derivative plaintiff brought causes of action for (i) breach of fiduciary
duty; (ii) gross mismanagement; and (iii) corporate waste of assets. The
plaintiff in the derivative action seeks, among other things, declaratory
and equitable relief, unspecified compensatory damages and attorney's fees.

      We believe these actions are without merit and intend to conduct a
vigorous defense.

                        PARTIES TO THE MERGER

      US AIRWAYS GROUP, INC. We are incorporated under the laws of the
State of Delaware on February 16, 1982. Our executive offices are located
at 2345 Crystal Drive, Arlington, Virginia 22227. Our telephone number is
(703) 872-7000.

      We are a holding company and our principal operating subsidiary is US
Airways, Inc., a Delaware corporation, which is wholly owned. US Airways,
Inc. accounted for approximately 88% of our operating revenues on a
consolidated basis in 1999. US Airways, Inc. is a certified air carrier
engaged primarily in the business of transporting passengers, property and
mail.

      UAL CORPORATION. UAL Corporation was incorporated under the laws of
the State of Delaware on December 30, 1968. The world headquarters of UAL
Corporation are located at 1200 East Algonquin Road, Elk Grove Township,
Illinois 60007. UAL Corporation's mailing address is P.O. Box 66919,
Chicago, Illinois 60666. The telephone number for UAL Corporation is (847)
700-4000.

   UAL Corporation is a holding company and its principal subsidiary is
United Air Lines, Inc., a Delaware corporation, which is wholly owned.
United Air Lines accounted for virtually all of UAL Corporation's revenues
and expenses in 1999. United Air Lines is a major commercial air
transportation company, engaged in the transportation of persons, property
and mail throughout the United States and abroad.

      YELLOW JACKET ACQUISITION CORP. Yellow Jacket Acquisition Corp. was
formed as a Delaware Corporation on May 17, 2000 by UAL Corporation for the
purpose of entering into the merger agreement. Yellow Jacket Acquisition
Corp. has not engaged in any business activity other than in connection
with the merger and the related transactions.



              SECURITY OWNERSHIP OF CERTAIN BENEFICIAL
                        OWNERS AND MANAGEMENT


      The following information pertains to common stock beneficially owned
by all directors and executive officers of US Airways (or its principal
operating subsidiary) as of July 31, 2000. Unless indicated otherwise by
footnote, the owner exercises sole voting and investment power over the
securities (other than unissued securities, the ownership of which has been
imputed to such owner).


<TABLE>
<CAPTION>
                                                               PERCENTAGE OF CLASS
OWNER                                      NUMBER OF SHARES            (1)
----------------------------------------- -------------------  ------------------
Directors
<S>                                                  <C>                <C>
  Mathias J. DeVito......................            8,000 (2)          *
  Rakesh Gangwal.........................        1,525,462 (3)          2.3%
  Peter M. George........................            2,265 (4)          *
  Robert L. Johnson......................            4,413 (5)          *
  Robert LeBuhn..........................           25,756 (2)(6)       *
  John G. Medlin, Jr.....................           11,000 (2)          *
  Hanne M. Merriman......................            7,500 (2)          *
  Thomas H. O'Brien......................            2,944 (4)          *
  Hilda Ochoa-Brillembourg...............           16,445 (7)(4)       *
  Richard B. Priory......................            2,167 (4)          *
  Raymond W. Smith.......................            9,609 (2)          *
  Stephen M. Wolf........................        2,216,986 (8)         3.3%
Executive Officers
  Lawrence M. Nagin......................          351,500 (9)          *
  B. Ben Baldanza........................           62,500 (10)         *
  Thomas A. Mutryn.......................           90,433 (11)         *
20 directors and executive officers of the
  Company as a group.....................        4,650,713 (12)        6.9%
</TABLE>


------------------
* Less than 1%.

(1)   Percentages are shown only where they exceed one percent of the
      number of shares outstanding and are based on shares of common stock
      outstanding on July 31, 2000.

(2)   These holdings include 6,000 shares of common stock issuable within 60
      days of July 31, 2000 upon exercise of stock options.

(3)   Mr. Gangwal's holdings include 362,450 shares of common stock which
      are subject to certain restrictions ("Restricted Stock") and 900,000
      shares of common stock issuable within 60 days of July 31, 2000 upon
      exercise of stock options.

(4)   These holdings include 1,500 shares of common stock issuable within 60
      days of July 31, 2000 upon exercise of stock options.

(5)   These holdings include 3,000 shares of common stock issuable within 60
      days of July 31, 2000 upon exercise of stock options.

(6)   These holdings include 10,000 shares of common stock held in trust.

(7)   These holdings include 14,000 shares of common stock held jointly by Ms.
      Ochoa-Brillembourg and her spouse.

(8)   Mr. Wolf's holdings include 321,121 shares of Restricted Stock and
      1,510,000 shares of common stock issuable within 60 days of July 31,
      2000 upon exercise of stock options.

(9)   Mr. Nagin's holdings include 42,831 shares of Restricted Stock and
      264,000 shares of common stock issuable within 60 days of July 31,
      2000 upon exercise of stock options.

(10)  Mr. Baldanza's holdings include 40,000 shares of Restricted Stock and
      22,500 shares of common stock issuable within 60 days of July 31,
      2000.

(11)  Mr. Mutryn's holdings include 52,291 shares of Restricted Stock and
      33,334 shares of common stock issuable within 60 days of July 31,
      2000 upon exercise of stock options.

(12)  All directors' and executive officers' holdings include 954,318
      shares of Restricted Stock and 2,919,484 shares of common stock
      issuable within 60 days of July 31, 2000 upon exercise of stock
      options.


      The only persons known to us (from our records and reports on
Schedules 13D and 13G filed with the Securities and Exchange Commission
(the "SEC")) who owned, as of July 31, 2000, unless otherwise indicated,
more than 5% of our common stock are listed below:

<TABLE>
<CAPTION>
                                           AMOUNT AND NATURE
NAME AND ADDRESS                             OF BENEFICIAL
TITLE OF CLASS OF BENEFICIAL OWNER             OWNERSHIP       PERCENT OF CLASS (1)
----------------------------------------- -------------------  --------------------
<S>                                         <C>                       <C>
Common Stock
Salomon Smith Barney Holdings Inc.
Citigroup Inc.
388 Greenwich Street
New York, New York  10013                   3,415,741(2)(3)            5.09%

Common Stock
Morgan Stanley Dean Witter & Co.
1585 Broadway
New York, New York  10036                   4,249,480 (4)              6.34%

Common Stock                               16,512,700 (5)             24.62%
Tiger Management LLC
Tiger Performance LLC
101 Park Avenue
New York, New York  10178
</TABLE>

(1) Represents percentage of shares of common stock outstanding on July 31,
    2000.
(2) As set forth in a Schedule 13G, dated April 20, 2000, as of April 7, 2000.
(3) 546,740 of these shares are held by Salomon Smith Barney for the accounts
    of its customers.
(4) As set forth in a Schedule 13G, dated February 1, 2000, as of December
    31, 1999.
(5) As set forth in a Schedule 13D, dated July 30, 1999, as of July 30, 1999.




                 PRICE RANGE OF COMMON STOCK AND DIVIDENDS

        Our common stock is listed on the New York Stock Exchange under the
symbol "U." The following table sets forth, for the fiscal quarters
indicated, the high and low trading prices per share of our common stock as
quoted on the New York Stock Exchange composite tape.

                                                HIGH             LOW
                                            -----------      ----------
1998:                                        $              $
    First Quarter......................       76-7/8          56-9/16
    Second Quarter.....................       82-1/8          63-5/8
    Third Quarter......................       83-1/4          47
    Fourth Quarter.....................       58-9/16         34-3/4

1999:
    First Quarter......................       64              43-3/16
    Second Quarter.....................       59-5/8          43
    Third Quarter......................       47-11/16        24-1/8
    Fourth Quarter.....................       33-5/8          25-1/16

2000:
    First Quarter......................       33-3/16         17-7/16
    Second Quarter ....................       51-1/2          24
    Third Quarter (through August 14,
      2000)............................       39-7/8          36-15/16

    We have not paid dividends on our common stock since the second quarter
of 1990 and the Board has not authorized the resumption of dividends on our
common stock as of the date of the printing of this proxy statement.

    On May 23, 2000, the last full trading day prior to the public
announcement of the signing of the merger agreement, the closing sale price
of our common stock reported on the New York Stock Exchange was $26.31 per
share and the high and low trading prices per share of our common stock as
quoted on the New York Stock Exchange Composite tape were $26.31 and
$25.50, respectively. On [August __], 2000, the most recent practicable
date prior to the printing of this proxy statement, the closing price of
our common stock reported on the New York Stock Exchange was $[_______].
You are urged to obtain current market quotations for our common stock
prior to making any decision with respect to the proposed merger.

       As of the record date, there were approximately [ ] holders of
record of our common stock, as shown on the records of our transfer agent.


      CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING STATEMENTS

      Certain information contained herein should be considered
"forward-looking statements" within the meaning of the Private Securities
Litigation Reform Act of 1995 which is subject to a number of risks and
uncertainties. The preparation of forward-looking statements requires the
use of estimates of future revenues, expenses, activity levels and economic
and market conditions, many of which are outside our control. Specific
factors that could cause actual results to differ materially from those set
forth in the forward-looking statements include: economic conditions, labor
costs; aviation fuel costs; competitive pressures on pricing (particularly
from lower-cost competitors); weather conditions; government legislation;
consumer perceptions of our products; demand for air transportation in the
markets served by our airline subsidiaries; and other operational matters
and risks and uncertainties listed from time to time in our reports to the
SEC. Other factors and assumptions not identified above are also involved
in the preparation of forward-looking statements, and the failure of such
other factors and assumptions to be realized may also cause actual results
to differ materially from those discussed. We assume no obligation to
update such estimates to reflect actual results, changes in assumptions or
changes in other factors affecting such estimates.

                         OTHER  INFORMATION

PROPOSALS BY STOCKHOLDERS OF US AIRWAYS

      If we complete the merger, we will no longer have public stockholders
or any public participation in our stockholder meetings. If we do not
complete the merger, we intend to hold our next annual stockholder meeting
in 2001. In that case, if you are still a stockholder as of the record date
of such meeting, you would continue to be entitled to attend and
participate in our stockholder meetings.

      Our by-laws require stockholders who intend to nominate directors or
propose new business at any annual meeting to provide advance notice of
such intended action as well as certain additional information. This
by-laws provision requires stockholders to provide us with notice of their
intent to nominate directors or propose new business at an annual meeting
not less than 30 days nor more than 60 days prior to such annual meeting;
provided, however, that in the event less than 40 days prior written notice
or prior public disclosure of the date of the meeting is given or made to
the stockholder, such notices by the stockholder must be received by us not
later than close of business on the 10th day following the day on which
such notice of the date of the annual meeting was mailed or such public
disclosure was made.

      In accordance with federal securities laws, proposals to be submitted
by stockholders for consideration at our next annual meeting and inclusion
in our 2001 Proxy Statement must be received by us at our executive offices
in Arlington, Virginia, not later than December 15, 2000. SEC rules
establish standards as to which stockholder proposals are required to be
included in a proxy statement for an annual meeting. We will only consider
proposals for inclusion in our proxy statement for an annual meeting that
satisfy the requirements of applicable SEC rules.

WHERE YOU CAN FIND MORE INFORMATION

      As required by law, we file reports, proxy statements and other
information with the SEC. You may read and copy this information at the
following offices of the SEC:


Public Reference Room     New York Regional Office    Chicago Regional Office
450 Fifth Street, N.W.    7 World Trade Center        500 West Madison Street
Room 1024                 Suite 1300                  Suite 1400
Washington, D.C.  20549   New York, New York  10048   Chicago, Illinois  60661

      For further information concerning the SEC's public reference rooms,
you may call the SEC at 1-800-SEC-0330. You may obtain copies of this
information by mail from the public reference section of the SEC, 450 Fifth
Street, N.W., Room 1024, Washington, D.C. 20549, at prescribed rates. You
may also access some of this information via the World Wide Web through the
SEC's Internet address at http://www.sec.gov. Our common stock is listed on
the New York Stock Exchange, and materials may be inspected at the New York
Stock Exchange's offices at 20 Broad Street, New York, New York 10005.



                                                           APPENDIX A

                    AGREEMENT AND PLAN OF MERGER



                                                       EXECUTION COPY
------------------------------------------------------------------------------




                        AGREEMENT AND PLAN OF MERGER



                                   Among




                              UAL CORPORATION,



                      YELLOW JACKET ACQUISITION CORP.



                                    and



                           US AIRWAYS GROUP, INC.




                          Dated as of May 23, 2000







------------------------------------------------------------------------------





                             TABLE OF CONTENTS



                                 ARTICLE I


                                 The Merger

SECTION 1.01      The Merger........................................1
SECTION 1.02      Closing...........................................1
SECTION 1.03      Effective Time....................................2
SECTION 1.04      Effects of the Merger.............................2
SECTION 1.05      Certificate of Incorporation and By-laws..........2
SECTION 1.06      Directors.........................................2
SECTION 1.07      Officers..........................................2


                                 ARTICLE II

                          Conversion of Securities

SECTION 2.01      Conversion of Capital Stock.......................2
SECTION 2.02      Exchange of Certificates..........................3


                                ARTICLE III

                       Representations and Warranties

SECTION 3.01      Representations and Warranties of the Company.....5
SECTION 3.02      Representations and Warranties of Parent and Sub.25


                                 ARTICLE IV

                 Covenants Relating to Conduct of Business

SECTION 4.01      Conduct of Business..............................26
SECTION 4.02      No Solicitation..................................32


                                 ARTICLE V

                           Additional Agreements

SECTION 5.01      Preparation of the Proxy Statement; Stockholders
                  Meeting..........................................35
SECTION 5.02      Access to Information; Confidentiality...........35
SECTION 5.03      Efforts; Notification............................36
SECTION 5.04      Company Stock Options............................38
SECTION 5.05      Indemnification, Exculpation and Insurance.......38
SECTION 5.06      Fees and Expenses................................39
SECTION 5.07      Information Supplied.............................40
SECTION 5.08      Benefits Matters.................................41
SECTION 5.09      Public Announcements.............................43
SECTION 5.10      Future Employment................................43


                                 ARTICLE VI

                            Conditions Precedent

SECTION 6.01      Conditions to Each Party's Obligation to Effect
                  the Merger.......................................43
SECTION 6.02      Conditions to Obligations of Parent and Sub......44
SECTION 6.03      Conditions to Obligation of the Company..........45
SECTION 6.04      Frustration of Closing Conditions................45


                                ARTICLE VII

                     Termination, Amendment and Waiver

SECTION 7.01      Termination......................................45
SECTION 7.02      Effect of Termination............................46
SECTION 7.03      Amendment........................................47
SECTION 7.04      Extension; Waiver................................47


                                ARTICLE VIII

                             General Provisions

SECTION 8.01      Nonsurvival of Representations and Warranties....47
SECTION 8.02      Notices..........................................47
SECTION 8.03      .................................................49
SECTION 8.04      Interpretation...................................49
SECTION 8.05      Counterparts.....................................49
SECTION 8.06      Entire Agreement; No Third-Party Beneficiaries...50
SECTION 8.07      Governing Law....................................50
SECTION 8.08      Assignment.......................................50
SECTION 8.09      Enforcement......................................50



            AGREEMENT AND PLAN OF MERGER dated as of May 23, 2000, by and
among UAL CORPORATION, a Delaware corporation ("Parent"), YELLOW JACKET
ACQUISITION CORP., a Delaware corporation and a wholly owned subsidiary of
Parent ("Sub"), and US AIRWAYS GROUP, INC., a Delaware corporation (the
"Company").

            WHEREAS the Board of Directors of each of the Company and Sub
has approved and declared advisable, and the Board of Directors of Parent
has approved, this Agreement and the merger of Sub with and into the
Company (the "Merger"), upon the terms and subject to the conditions set
forth in this Agreement, whereby each issued and outstanding share of
common stock, par value $1.00 per share, of the Company (the "Company
Common Stock") not owned by Parent, Sub or the Company, other than the
Appraisal Shares (as defined in Section 2.01(d)), will be converted into
the right to receive $60.00 in cash;

            WHEREAS Parent, Sub and the Company desire to make certain
representations, warranties, covenants and agreements in connection with
the Merger and also to prescribe various conditions to the Merger;


            NOW, THEREFORE, in consideration of the foregoing and the
representations, warranties, covenants and agreements set forth herein, the
parties hereto agree as follows:

                                 ARTICLE I

                                 The Merger

            SECTION 1.01 The Merger. Upon the terms and subject to the
conditions set forth in this Agreement, and in accordance with the Delaware
General Corporation Law (the "DGCL"), Sub shall be merged with and into the
Company at the Effective Time (as defined in Section 1.03). At the
Effective Time, the separate corporate existence of Sub shall cease and the
Company shall continue as the surviving corporation (the "Surviving
Corporation") and shall succeed to and assume all the rights and
obligations of Sub in accordance with the DGCL.

            SECTION 1.02 Closing. Upon the terms and subject to the
conditions set forth in this Agreement, the closing of the Merger (the
"Closing") shall take place at 11:00 a.m., New York time, on the second
business day after the satisfaction or (to the extent permitted by
applicable law) waiver of the conditions set forth in Article VI (other
than those that by their terms cannot be satisfied until the time of the
Closing), at the offices of Cravath, Swaine & Moore, 825 Eighth Avenue, New
York, New York 10019, or at such other time, date or place agreed to in
writing by Parent and the Company; provided, however, that if all the
conditions set forth in Article VI shall not have been satisfied or (to the
extent permitted by applicable law) waived on such second business day,
then the Closing shall take place on the first business day on which all
such conditions shall have been satisfied or (to the extent permitted by
applicable law) waived. The date on which the Closing occurs is referred to
in this Agreement as the "Closing Date".

            SECTION 1.03 Effective Time. Upon the terms and subject to the
conditions set forth in this Agreement, as soon as practicable on or after
the Closing Date, a certificate of merger or other appropriate documents
(in any such case, the "Certificate of Merger") shall be duly prepared,
executed and acknowledged by the parties in accordance with the relevant
provisions of the DGCL and filed with the Secretary of State of the State
of Delaware. The Merger shall become effective upon the filing of the
Certificate of Merger with the Secretary of State of the State of Delaware
or at such subsequent time or date as Parent and the Company shall agree
and specify in the Certificate of Merger. The time at which the Merger
becomes effective is referred to in this Agreement as the "Effective Time".

            SECTION 1.04 Effects of the Merger. The Merger shall have the
effects set forth in Section 259 of the DGCL.

            SECTION 1.05 Certificate of Incorporation and By-laws. (a) The
Restated Certificate of Incorporation of the Company, as amended to the
date of this Agreement, shall be the Certificate of Incorporation of the
Surviving Corporation until thereafter changed or amended as provided
therein or by applicable law.

                  (b) The By-laws of Sub as in effect immediately prior to
the Effective Time shall be the By-laws of the Surviving Corporation until
thereafter changed or amended as provided therein or by applicable law.

            SECTION 1.06 Directors. The directors of Sub immediately prior
to the Effective Time shall be the directors of the Surviving Corporation
until the earlier of their resignation or removal or until their respective
successors are duly elected and qualified, as the case may be.

            SECTION 1.07 Officers. The officers of the Company immediately
prior to the Effective Time shall be the officers of the Surviving
Corporation until the earlier of their resignation or removal or until
their respective successors are duly elected and qualified, as the case may
be.


                                 ARTICLE II

                          Conversion of Securities

            SECTION 2.01 Conversion of Capital Stock. At the Effective
Time, by virtue of the Merger and without any action on the part of the
holder of any shares of capital stock of the Company, Parent or Sub:

                  (a) Capital Stock of Sub. Each issued and outstanding
share of common stock of Sub shall be converted into and become one fully
paid and nonassessable share of common stock of the Surviving Corporation.

                  (b)  Cancelation of Treasury Stock and Parent-Owned Stock.
Each share of Company Common Stock that is owned by the Company as treasury
stock, or by Parent or Sub, immediately prior to the Effective Time shall
automatically be canceled and retired and shall cease to exist and no
consideration shall be delivered in exchange therefor.

                  (c) Conversion of Company Common Stock. Each share of
Company Common Stock issued and outstanding immediately prior to the
Effective Time (other than shares to be canceled in accordance with Section
2.01(b) and the Appraisal Shares) shall be converted into the right to
receive $60.00 in cash, without interest (the "Merger Consideration"). At
the Effective Time all such shares shall no longer be outstanding and shall
automatically be canceled and shall cease to exist, and each holder of a
certificate that immediately prior to the Effective Time represented any
such shares (a "Certificate") shall cease to have any rights with respect
thereto, except the right to receive the Merger Consideration.

                  (d) Appraisal Rights. Notwithstanding anything in this
Agreement to the contrary, shares (the "Appraisal Shares") of Company
Common Stock issued and outstanding immediately prior to the Effective Time
that are held by any holder who is entitled to demand and properly demands
appraisal of such shares pursuant to, and who complies in all respects
with, the provisions of Section 262 of the DGCL ("Section 262") shall not
be converted into the right to receive the Merger Consideration as provided
in Section 2.01(c), but instead such holder shall be entitled to payment of
the fair value of such shares in accordance with the provisions of Section
262. At the Effective Time, all Appraisal Shares shall no longer be
outstanding and shall automatically be canceled and shall cease to exist,
and each holder of Appraisal Shares shall cease to have any rights with
respect thereto, except the right to receive the fair value of such shares
in accordance with the provisions of Section 262. Notwithstanding the
foregoing, if any such holder shall fail to perfect or otherwise shall
waive, withdraw or lose the right to appraisal under Section 262 or a court
of competent jurisdiction shall determine that such holder is not entitled
to the relief provided by Section 262, then the right of such holder to be
paid the fair value of such holder's Appraisal Shares under Section 262
shall cease and such Appraisal Shares shall be deemed to have been
converted at the Effective Time into, and shall have become, the right to
receive the Merger Consideration as provided in Section 2.01(c). The
Company shall serve prompt notice to Parent of any demands for appraisal of
any shares of Company Common Stock, and Parent shall have the right to
participate in and direct all negotiations and proceedings with respect to
such demands. Prior to the Effective Time, the Company shall not, without
the prior written consent of Parent, make any payment with respect to, or
settle or offer to settle, any such demands, or agree to do any of the
foregoing.

            SECTION 2.02 Exchange of Certificates. (a) Paying Agent. Prior
to the Effective Time Parent shall designate a bank or trust company
reasonably acceptable to the Company to act as agent for the payment of the
Merger Consideration upon surrender of Certificates (the "Paying Agent"),
and, from time to time after the Effective Time, Parent shall provide, or
cause the Surviving Corporation to provide, to the Paying Agent funds in
amounts and at the times necessary for the payment of the Merger
Consideration pursuant to Section 2.01(c) upon surrender of Certificates,
it being understood that any and all interest or income earned on funds
made available to the Paying Agent pursuant to this Agreement shall be
turned over to Parent.

                  (b) Exchange Procedure. As soon as reasonably practicable
after the Effective Time, the Paying Agent shall mail to each holder of
record of a Certificate (i) a form of letter of transmittal (which shall
specify that delivery shall be effected, and risk of loss and title to the
Certificates held by such person shall pass, only upon proper delivery of
the Certificates to the Paying Agent and shall be in customary form and
have such other provisions as Parent may reasonably specify) and (ii)
instructions for use in effecting the surrender of the Certificates in
exchange for the Merger Consideration. Upon surrender of a Certificate for
cancelation to the Paying Agent or to such other agent or agents as may be
appointed by Parent, together with such letter of transmittal, duly
completed and validly executed, and such other documents as may reasonably
be required by the Paying Agent, the holder of such Certificate shall be
entitled to receive in exchange therefor the amount of cash into which the
shares formerly represented by such Certificate shall have been converted
pursuant to Section 2.01(c) into the right to receive, and the Certificate
so surrendered shall forthwith be canceled. In the event of a transfer of
ownership of Company Common Stock that is not registered in the stock
transfer books of the Company, the proper amount of cash may be paid in
exchange therefor to a person other than the person in whose name the
Certificate so surrendered is registered if such Certificate shall be
properly endorsed or otherwise be in proper form for transfer and the
person requesting such payment shall pay any transfer or other taxes
required by reason of the payment to a person other than the registered
holder of such Certificate or establish to the satisfaction of Parent that
such tax has been paid or is not applicable. No interest shall be paid or
shall accrue on the cash payable upon surrender of any Certificate.

                  (c) No Further Ownership Rights in Company Common Stock.
All cash paid upon the surrender of a Certificate in accordance with the
terms of this Article II shall be deemed to have been paid in full
satisfaction of all rights pertaining to the shares of Company Common Stock
formerly represented by such Certificate. At the close of business on the
day on which the Effective Time occurs the stock transfer books of the
Company shall be closed, and there shall be no further registration of
transfers on the stock transfer books of the Surviving Corporation of the
shares of Company Common Stock that were outstanding immediately prior to
the Effective Time. If, after the Effective Time, Certificates are
presented to the Surviving Corporation or the Paying Agent for transfer or
any other reason, they shall be canceled and exchanged as provided in this
Article II.

            (d) No Liability. None of Parent, Sub, the Company or the
Paying Agent shall be liable to any person in respect of any cash delivered
to a public official pursuant to any applicable abandoned property, escheat
or similar law. If any certificates shall not have been surrendered prior
to two years after the Effective Time (or immediately prior to such earlier
date on which any Merger Consideration would otherwise escheat to or became
the property of any Governmental Entity (as defined in Section 3.01(d)),
any such Merger Consideration in respect thereof shall, to the extent
permitted by applicable law, become the property of the Surviving
Corporation, free and clear of all claims or interest of any person
previously entitled thereto.

                  (e) Lost Certificates. If any Certificate shall have been
lost, stolen or destroyed, upon the making of an affidavit of that fact by
the person claiming such Certificate to be lost, stolen or destroyed and,
if required by the Surviving Corporation, the posting by such person of a
bond in such reasonable amount as the Surviving Corporation may direct as
indemnity against any claim that may be made against it with respect to
such Certificate, the Paying Agent shall pay in respect of such lost,
stolen or destroyed Certificate the Merger Consideration.

                  (f) Withholding Rights. Parent, the Surviving Corporation
or the Paying Agent shall be entitled to deduct and withhold from the
consideration otherwise payable pursuant to this Agreement to any holder of
shares of Company Common Stock such amounts as Parent, the Surviving
Corporation or the Paying Agent is required to deduct and withhold with
respect to the making of such payment under the Code or any provision of
state, local or foreign tax law. To the extent that amounts are so withheld
and paid over to the appropriate taxing authority by Parent, the Surviving
Corporation or the Paying Agent, such withheld amounts shall be treated for
all purposes of this Agreement as having been paid to the holder of the
shares of Company Common Stock in respect of which such deduction and
withholding was made by Parent, the Surviving Corporation or the Paying
Agent.


                                ARTICLE III

                       Representations and Warranties

            SECTION 3.01 Representations and Warranties of the Company.
Except as set forth on the disclosure schedule, with specific reference to
the Section or Subsection of this Agreement to which the information stated
in such disclosure relates (the "Company Disclosure Schedule") (provided
that any subsection under Section 3.01 of the Company Disclosure Schedule
or any subsections thereof shall each be deemed to include (i) all
disclosures set forth in other sections and subsections of the Company
Disclosure Schedule (including Sections 4.01(a) and 4.01(b)) and (ii) all
disclosures set forth in the Company's Annual Report on Form 10-K for the
fiscal year ended December 31, 1999 (the "Company's 1999 10-K"), US
Airways, Inc.'s (the "Principal Operating Sub") Annual Report on Form 10-K
for the fiscal year ended December 31, 1999, or any other report or other
document filed by the Company or the Principal Operating Sub with the
Securities and Exchange Commission (the "SEC") and publicly available
subsequent to December 31, 1999, and prior to the date of this Agreement,
including the financial statements (and notes thereto) filed therewith
(collectively, the "Filed SEC Documents"), in each of clauses (i) and (ii)
as and to the extent the context of such disclosures makes it reasonably
clear, if read in the context of such other section or subsection, that
such disclosures are applicable to such other sections or subsections), the
Company represents and warrants to Parent and Sub as follows:

                  (a) Organization, Standing and Power. Each of the Company
and its subsidiaries (as defined in Section 8.03) (i) is duly organized,
validly existing and in good standing under the laws of the jurisdiction of
its organization, (ii) has all requisite corporate, company or partnership
power and authority to carry on its business as now being conducted and
(iii) is duly qualified or licensed to do business and is in good standing
in each jurisdiction in which the nature of its business or the ownership,
leasing or operation of its properties makes such qualification or
licensing necessary, other than (except in the case of clause (i) above
with respect to the Company) where the failure to be so organized,
existing, qualified or licensed or in good standing individually or in the
aggregate would not be expected to result in (taking into account the
likelihood of such result occurring and the expected magnitude of such
event if it were to occur) a material adverse effect (as defined in Section
8.03). The Company has delivered to Parent true and complete copies of its
Restated Certificate of Incorporation and By-laws and the certificate of
incorporation and by-laws (or similar organizational documents) of each of
its subsidiaries, in each case as amended to the date of this Agreement.
Except as identified in writing by the Company to Parent prior to the date
of this Agreement, the Company has made available to Parent and its
representatives true and complete copies of the minutes of all meetings of
the stockholders, the Board of Directors of the Company and each committee
of the Board of Directors of the Company and each of its subsidiaries held
since January 1, 1997, that have been requested by Parent.

                  (b) Subsidiaries. All the outstanding shares of capital
stock or other equity or voting interests of each such subsidiary are owned
by the Company, by another wholly owned subsidiary of the Company or by the
Company and another wholly owned subsidiary of the Company, free and clear
of all pledges, claims, liens, charges, encumbrances and security interests
of any kind or nature whatsoever (collectively, "Liens"), and are duly
authorized, validly issued, fully paid and nonassessable. Except for the
capital stock of, or other equity or voting interests in, its subsidiaries,
the Company does not own, directly or indirectly, any capital stock of, or
other equity or voting interests in, any corporation, partnership, joint
venture, association or other entity.

                 (c) Capital Structure. (i) The authorized capital stock of
the Company consists of 150,000,000 shares of Company Common Stock,
3,000,000 shares of senior preferred stock, without nominal or par value
(the "Company Senior Preferred Stock"), and 5,000,000 shares of preferred
stock, without nominal or par value (the "Company Preferred Stock"). As of
the close of business on May 19, 2000, (A) 67,029,029 shares of Company
Common Stock (excluding shares held by the Company as treasury shares) were
issued and outstanding, (B) 34,142,767 shares of Company Common Stock were
held by the Company as treasury shares, (C) 20,486,116 shares of Company
Common Stock were reserved for issuance pursuant to the Nonemployee
Directors Stock Purchase Plan, the 1984 Stock Option and Stock Appreciation
Rights Plan, the 1992 Stock Option Plan, the Nonemployee Director Deferred
Stock Unit Plan, the Nonemployee Director Stock Incentive Plan, the 1996
Stock Incentive Plan, the 1997 Stock Incentive Plan and the 1998 Pilot
Stock Option Plan (such plans, collectively, the "Company Stock Plans"), of
which 11,495,500 shares were subject to outstanding Company Stock Options
(as defined below), (D) no shares of Company Senior Preferred Stock were
issued and outstanding or were held by the Company as treasury shares and
(E) no shares of Company Preferred Stock were issued and outstanding or
were held by the Company as treasury shares. There are no outstanding stock
appreciation rights or other rights that are linked to the price of Company
Common Stock granted under any Company Stock Plan that were not granted in
tandem with a related Company Stock Option. No shares of Company Common
Stock are owned by any subsidiary of the Company. The Company has delivered
to Parent a true and complete list, as of the close of business on May 19,
2000, of all outstanding stock options to purchase Company Common Stock
granted under the Company Stock Plans (collectively, the "Company Stock
Options") and all other rights to purchase or receive Company Common Stock
(collectively, the "Company Stock Issuance Rights") granted under the
Company Stock Plans, the number of shares subject to each such Company
Stock Option or Company Stock Issuance Right, the grant dates and exercise
prices of each such Company Stock Option or, as applicable, Company Stock
Issuance Right and the names of the holder thereof. Except as set forth
above, as of the close of business on May 19, 2000, no shares of capital
stock of, or other equity or voting interests in, the Company, or, to the
extent issued or granted by the Company, options, warrants or other rights
to acquire any such stock or securities were issued, reserved for issuance
or outstanding. During the period from May 19, 2000 to the date of this
Agreement, (x) there have been no issuances by the Company of shares of
capital stock of, or other equity or voting interests in, the Company other
than issuances of shares of Company Common Stock pursuant to the exercise
of Company Stock Options outstanding on such date as required by their
terms as in effect on the date of this Agreement and (y) there have been no
issuances by the Company of options, warrants or other rights to acquire
shares of capital stock or other equity or voting interests from the
Company. All outstanding shares of capital stock of the Company are, and
all shares that may be issued pursuant to the Company Stock Plans will be,
when issued in accordance with the terms thereof, duly authorized, validly
issued, fully paid and nonassessable and not subject to preemptive rights.
There are no bonds, debentures, notes or other indebtedness of the Company
or any of its subsidiaries, and, except as set forth above, no securities
or other instruments or obligations of the Company or any of its
subsidiaries the value of which is in any way based upon or derived from
any capital or voting stock of the Company, having the right to vote (or
convertible into, or exchangeable for, securities having the right to vote)
on any matters on which stockholders of the Company or any of its
subsidiaries may vote. Except as set forth above and except as specifically
permitted under Section 4.01(a), there are no Contracts (as defined in
Section 3.01(d)) of any kind to which the Company or any of its
subsidiaries is a party or by which the Company or any of its subsidiaries
is bound obligating the Company or any of its subsidiaries to issue,
deliver or sell, or cause to be issued, delivered or sold, additional
shares of capital stock of, or other equity or voting interests in, or
securities convertible into, or exchangeable or exercisable for, shares of
capital stock of, or other equity or voting interests in, the Company or
any of its subsidiaries or obligating the Company or any of its
subsidiaries to issue, grant, extend or enter into any such security,
option, warrant, call, right or Contract. There are not any outstanding
contractual obligations of the Company or any of its subsidiaries to (I)
repurchase, redeem or otherwise acquire any shares of capital stock of, or
other equity or voting interests in, the Company or any of its subsidiaries
or (II) vote or dispose of any shares of the capital stock of, or other
equity or voting interests in, any of its subsidiaries. To the knowledge of
the Company as of the date of this Agreement, there are no irrevocable
proxies and no voting agreements to which the Company is a party with
respect to any shares of the capital stock or other voting securities of
the Company or any of its subsidiaries.

                       (ii)  As of the date of the Agreement, the number of
      outstanding shares of Company Common Stock held by the trustee (the
      "Trustee") under the Company's Employee Stock Ownership Plan (the
      "ESOP") is 2,081,873, of which 900,156 shares are allocated to
      participants and beneficiaries under the ESOP and 1,181,717 shares
      are unallocated. As of the date of this Agreement, the outstanding
      and unpaid principal amount of the note evidencing the agreement to
      repay the loan (the "ESOP Loan") from the Company to the Trustee,
      dated August 11, 1989, the proceeds of which were used by the Trustee
      on behalf of the ESOP to purchase from the Company on such date
      2,200,000 shares of Company Common Stock, is $72,241,786. The
      unallocated shares of Company Common Stock held in the ESOP's
      suspense account have been pledged as collateral for the ESOP Loan.

                 (d) Authority; Noncontravention. The Company has the
requisite corporate power and authority to execute and deliver this
Agreement and to consummate the transactions contemplated hereby. The
execution and delivery of this Agreement by the Company and the
consummation by the Company of the transactions contemplated hereby have
been duly authorized by all necessary corporate action on the part of the
Company and no other corporate proceedings on the part of the Company are
necessary to approve this Agreement or to consummate the transactions
contemplated hereby, subject, in the case of the consummation of the
Merger, to obtaining the Stockholder Approval (as defined in Section
3.01(t)). This Agreement has been duly executed and delivered by the
Company and constitutes a valid and binding obligation of the Company,
enforceable against the Company in accordance with its terms. The Board of
Directors of the Company, at a meeting duly called and held at which all
directors of the Company were present, duly and unanimously adopted
resolutions (i) approving and declaring advisable the Merger, this
Agreement and the transactions contemplated hereby, (ii) declaring that it
is in the best interests of the Company's stockholders that the Company
enter into this Agreement and consummate the Merger on the terms and
subject to the conditions set forth in this Agreement, (iii) declaring that
the consideration to be paid to the Company's stockholders in the Merger is
fair to such stockholders, (iv) directing that this Agreement be submitted
to a vote at a meeting of the Company's stockholders and (v) recommending
that the Company's stockholders adopt this Agreement. The execution and
delivery of this Agreement and the consummation of the transactions
contemplated hereby and compliance with the provisions hereof do not and
will not conflict with, or result in any violation or breach of, or default
(with or without notice or lapse of time, or both) under, or give rise to a
right of, or result in, termination, cancelation or acceleration of any
obligation or to loss of a material benefit under, or result in the
creation of any Lien in or upon any of the properties or assets of the
Company or any of its subsidiaries under, or give rise to any increased,
additional, accelerated or guaranteed rights or entitlements under, any
provision of (i) the Restated Certificate of Incorporation or By-laws of
the Company or the certificate of incorporation or by-laws (or similar
organizational documents) of any of its subsidiaries, (ii) any loan or
credit agreement, bond, debenture, note, mortgage, indenture, guarantee,
lease or other contract, commitment, agreement, instrument, arrangement,
understanding, obligation, undertaking, permit, concession, franchise or
license, whether oral or written (each, including all amendments thereto, a
"Contract"), to which the Company or any of its subsidiaries is a party or
any of their respective properties or assets is subject or (iii) subject to
the governmental filings and other matters referred to in the following
sentence, any (A) statute, law, ordinance, rule or regulation or (B)
judgment, order or decree, in each case applicable to the Company or any of
its subsidiaries or their respective properties or assets, other than, in
the case of clauses (ii) and (iii), any such conflicts, violations,
breaches, defaults, rights, losses, Liens or entitlements that individually
or in the aggregate would not be expected to result in (taking into account
the likelihood of such result occurring and the expected magnitude of such
event if it were to occur) a material adverse effect. No consent, approval,
order or authorization of, or registration, declaration or filing with, any
domestic or foreign (whether national, federal, state, provincial, local or
otherwise) government or any court, administrative agency or commission or
other governmental or regulatory authority or agency, domestic, foreign or
supranational (a "Governmental Entity"), is required by or with respect to
the Company or any of its subsidiaries in connection with the execution and
delivery of this Agreement by the Company or the consummation by the
Company of the transactions contemplated hereby or compliance with the
provisions hereof, except for (1) the filing of a premerger notification
and report form by the Company under the Hart-Scott-Rodino Antitrust
Improvements Act of 1976, as amended (the "HSR Act") or any other
applicable competition, merger control, antitrust or similar law or
regulation, (2) any consent, approval, order, authorization, registration,
declaration or filing required to be received from or made with any foreign
regulatory authorities, (3) any filings required under Title 49 of the
United States Code and the rules and regulations of the Federal Aviation
Administration (the "FAA"), (4) any filings required under the rules and
regulations of the Department of Transportation (the "DOT"), (5) the filing
with the SEC of a proxy statement relating to the adoption by the Company's
stockholders of this Agreement (as amended or supplemented from time to
time, the "Proxy Statement") and such reports under the Securities Exchange
Act of 1934, as amended (the "Exchange Act"), as may be required in
connection with this Agreement, the Merger and the other transactions
contemplated hereby, (6) the filing of the Certificate of Merger with the
Secretary of State of the State of Delaware and appropriate documents with
the relevant authorities of other states in which the Company or any of its
subsidiaries is qualified to do business, (7) any filings required under
the rules and regulations of the New York Stock Exchange ("NYSE"), (8) any
consent, approval, order, authorization, registration, declaration or
filing required to be received from or made with any Governmental Entity
that generally regulates aspects of airline operations, including, but not
limited to, noise, environmental, aircraft communications, agricultural,
export/import and customs and (9) such other consents, approvals, orders,
authorizations, registrations, declarations and filings the failure of
which to be obtained or made individually or in the aggregate would not be
expected to result in (taking into account the likelihood of such result
occurring and the expected magnitude of such event if it were to occur) a
material adverse effect.

                  (e) SEC Documents. Each of the Company and the Principal
Operating Sub has filed with the SEC, and has heretofore made available to
Parent true and complete copies of, all forms, reports, schedules,
statements and other documents required to be filed with the SEC by it
since January 1, 1997 (together with all information incorporated therein
by reference, the "SEC Documents"). No subsidiary of the Company, other
than the Principal Operating Sub, is required to file any form, report,
schedule, statement or other document with the SEC. As of their respective
dates, the SEC Documents complied in all material respects with the
requirements of the Securities Act of 1933 (the "Securities Act") or the
Exchange Act, as the case may be, and the rules and regulations of the SEC
promulgated thereunder applicable to such SEC Documents, and none of the
SEC Documents at the time they were filed contained any untrue statement of
a material fact or omitted to state a material fact required to be stated
therein or necessary in order to make the statements therein, in light of
the circumstances under which they were made, not misleading. The financial
statements (including the related notes) included in the SEC Documents
comply as to form in all material respects with applicable accounting
requirements and the published rules and regulations of the SEC with
respect thereto in effect at the time of filing, have been prepared in
accordance with generally accepted accounting principles ("GAAP") (except,
in the case of unaudited statements, as permitted by Form 10-Q of the SEC)
applied on a consistent basis during the periods involved (except as may be
indicated in the notes thereto) and fairly present in all material respects
(x) in the case of the SEC Documents filed by the Company, the consolidated
financial position of the Company and its consolidated subsidiaries as of
the dates thereof and their consolidated results of operations and cash
flows for the periods then ended, and (y) in the case of the SEC Documents
filed by the Principal Operating Sub, the consolidated financial position
of the Principal Operating Sub and its consolidated subsidiaries as of the
dates thereof and their consolidated results of operations and cash flows
for the periods then ended (subject, in the case of unaudited statements,
to normal and recurring year-end audit adjustments). Except for contingent
liabilities referenced or reflected (without regard to potential amount) in
the Filed SEC Documents, as of December 31, 1999, the Company and its
subsidiaries had no contingent liabilities, other than contingent
liabilities that individually would not be expected to result in (taking
into account the likelihood of such result occurring and the expected
magnitude of such event if it were to occur) a material adverse effect.

                 (f) Absence of Certain Changes or Events. Since December
31, 1999, the Company and its subsidiaries have conducted their respective
businesses only in the ordinary course consistent with past practice, and
there has not been (i) any state of facts, change, development, effect,
condition or occurrence that individually or in the aggregate constitutes,
has had, or would be expected to result in (taking into account the
likelihood of such result occurring and the expected magnitude of such
event if it were to occur) a material adverse effect, (ii) prior to the
date of this Agreement, any declaration, setting aside or payment of any
dividend on, or other distribution (whether in cash, stock or property) in
respect of, any of the Company's or any of its subsidiaries' capital stock,
except for dividends by a wholly owned subsidiary of the Company to its
parent, (iii) prior to the date of this Agreement, any purchase, redemption
or other acquisition of any shares of capital stock or any other securities
of the Company or any of its subsidiaries or any options, warrants, calls
or rights to acquire such shares or other securities, (iv) prior to the
date of this Agreement, any split, combination or reclassification of any
of the Company's or any of its subsidiaries' capital stock or any issuance
or the authorization of any issuance of any other securities in respect of,
in lieu of or in substitution for shares of capital stock or other
securities of the Company or any of its subsidiaries, (v) (x) any granting
by the Company or any of its subsidiaries to any current or former
director, officer, employee or consultant of any increase in compensation,
bonus or other benefits or any such granting of any type of compensation or
benefits to any current or former director, officer, employee or consultant
not previously receiving or entitled to receive such type of compensation
or benefit, except for (A) increases of cash compensation and other
immaterial changes in benefits (except for changes in benefits provided to
officers other than as the result of immaterial changes made to Company
Benefit Plans that are generally applicable to the employees of the Company
or any of its subsidiaries, which changes are not specifically directed at
or do not disproportionately affect such officers) in each case (1) in the
ordinary course of business consistent with past practice or (2) required
under any agreement or benefit plan in effect as of December 31, 1999, or
(B) those actions taken by the Company to retain or attract employees in
key positions as and to the extent consistent with the Employee
Retention/Attraction Plan set forth as Exhibit N to the Company Disclosure
Schedule (the "Retention Plan"), (y) any granting to any current or former
director, officer, employee or consultant of the right to receive any
severance or termination pay, or increases therein, other than (A)
termination arrangements for employees (other than officers) entered into
in the ordinary course of business consistent with past practice and (B)
those actions taken by the Company to retain or attract employees in key
positions as and to the extent consistent with the Retention Plan or (z)
any entry by the Company or any of its subsidiaries into, or any amendment
of, any Company Benefit Agreement(as defined in Section 3.01(j)), (vi) any
payment of any benefit or the grant or amendment of any award (including in
respect of stock options, stock appreciation rights, performance units,
restricted stock or other stock-based or stock-related awards or the
removal or modification of any restrictions in any Company Benefit
Agreement or Company Benefit Plan or awards made thereunder) except as
required to comply with any applicable law or any Company Benefit Agreement
or Company Benefit Plan existing on such date and except for those actions
taken by the Company to retain or attract employees in key positions as and
to the extent consistent with the Retention Plan, (vii) any damage or
destruction, whether or not covered by insurance, that individually or in
the aggregate would be expected to result in (taking into account the
likelihood of such result occurring and the expected magnitude of such
event if it were to occur) a material adverse effect, (viii) any material
change in financial accounting methods, principles or practices by the
Company or any of its subsidiaries, except insofar as may have been
required by a change in GAAP or SEC accounting regulations or guidelines or
applicable law, (ix) on or prior to the date of this Agreement, any
material election with respect to taxes by the Company or any of its
subsidiaries or any settlement or compromise of any material tax liability
or refund of the Company or any of its subsidiaries, (x) on or prior to the
date of this Agreement, any material change in tax accounting methods,
principles or practices by the Company or any of its subsidiaries, except
insofar as may have been required by a change in GAAP or SEC accounting
regulations or guidelines or applicable law or (xi) any revaluation by the
Company or any of its subsidiaries of any of the material assets of the
Company or any of its subsidiaries.

                  (g) Litigation. There is no suit, claim, action,
investigation or proceeding pending or, to the knowledge of the Company,
threatened against or affecting the Company or any of its subsidiaries or
any of their respective assets that individually or in the aggregate would
be expected to result in (taking into account the likelihood of such result
occurring and the expected magnitude of such event if it were to occur) a
material adverse effect, nor is there any statute, law, ordinance, rule,
regulation, judgment, order or decree, of any Governmental Entity or
arbitrator outstanding against, or, to the knowledge of the Company,
investigation, proceeding, notice of violation, order of forfeiture or
complaint by any Governmental Entity involving, the Company or any of its
subsidiaries that individually or in the aggregate would be expected to
result in (taking into account the likelihood of such result occurring and
the expected magnitude of such event if it were to occur) a material
adverse effect.

                  (h) Contracts. Except for Contracts filed as exhibits to
the Filed SEC Documents, as of the date hereof there are no Contracts that
are required to be filed as an exhibit to any Filed SEC Document under the
Exchange Act and the rules and regulations promulgated thereunder. Except
for Contracts filed in unredacted form as exhibits to the Filed SEC
Documents, Section 3.01(h) of the Company Disclosure Schedule sets forth a
true and complete list of:

                       (i) all Contracts to which the Company or any of its
      subsidiaries is a party, or that purports to be binding upon the
      Company, any of its subsidiaries or any of its affiliates, that
      contain a covenant (a "Restrictive Covenant") materially restricting
      the ability of the Company or any of its subsidiaries (or which,
      following the consummation of the Merger, could materially restrict
      the ability of Parent or any of its subsidiaries, including the
      Company and its subsidiaries) to compete in any business that is
      material to the Company and its subsidiaries, taken as a whole, or
      Parent and its subsidiaries, taken as a whole, or with any person or
      in any geographic area, except for any such Contract (x) that would
      not be expected to result in the Company incurring costs or receiving
      revenues in excess of $5,000,000 per year, (y) that may be canceled
      without penalty by the Company or any of its subsidiaries upon notice
      of 60 days or less or (z) the terms and scope (including with respect
      to any Restrictive Covenants) are customary in the airline industry
      for Contracts of that type;

                       (ii) all material joint venture, partnership,
      business alliance (excluding information technology contracts), code
      sharing and frequent flyer agreements (including all material
      amendments to each of the foregoing agreements);

                       (iii) all maintenance agreements for repair and
      overhaul that would be expected to result in the Company incurring
      costs in excess of $10,000,000 per year (including all material
      amendments to each of the foregoing agreements); and

                       (iv) as of the date hereof, all loan agreements,
      credit agreements, notes, debentures, bonds, mortgages, indentures
      and other Contracts pursuant to which any indebtedness (which term
      shall include capital leases and operating leases) of the Company or
      any of its subsidiaries is outstanding or may be incurred and all
      guarantees of or by the Company or any of its subsidiaries of any
      indebtedness of any other person (except for such indebtedness or
      guarantees of indebtedness the aggregate principal amount of which
      does not exceed $10,000,000), including the respective aggregate
      principal amounts outstanding as of the date of this Agreement. The
      Company has previously disclosed to Parent in writing, based upon the
      assumptions in such writing, the aggregate amount of indebtedness
      (which shall be deemed solely for purposes of this sentence to
      consist of capital leases, aircraft operating leases and indebtedness
      for borrowed money) of the Company and its subsidiaries (including
      all guarantees of indebtedness to third parties) as of the date of
      this Agreement.

None of the Company or any of its subsidiaries is in violation of or
default (with or without notice or lapse of time or both) under, or has
waived or failed to enforce any rights or benefits under, any Contract to
which it is a party or by which it or any of its properties or assets is
bound, and, to the knowledge of the Company or such subsidiary, no other
party to any of its Contracts is in violation or default (with or without
notice or lapse of time or both) under, or has waived or failed to enforce
any rights or benefits under, and there has occurred no event giving to
others any right of termination, amendment or cancelation of, with or
without notice or lapse of time or both, any such Contract except, in each
case, for violations, defaults, waivers or failures to enforce benefits
that individually or in the aggregate would not be expected to result in
(taking into account the likelihood of such result occurring and the
expected magnitude of such event if it were to occur) a material adverse
effect. Except as identified in writing by the Company to Parent prior to
the date of this Agreement, the Company has delivered or made available to
Parent or its representatives true and complete copies of all Contracts
listed on Section 3.01(h) of the Company Disclosure Schedule.

                  (i) Compliance with Laws. Except with respect to
Environmental Laws (as defined in Section 3.01(l)(vi)) and taxes, which are
the subject of Sections 3.01(l) and 3.01(n), respectively, and except as
otherwise set forth in any documents filed by the Company or the Principal
Operating Sub with the SEC and publicly available prior to December 31,
1999, the Company and its subsidiaries and their relevant personnel and
operations are, and since January 1, 1997 have been, in compliance with all
statutes, laws, ordinances, rules, regulations, judgments, orders and
decrees of any Governmental Entity applicable to their businesses or
operations, including all applicable operating certificates, Airworthiness
Directives ("ADs"), Federal Aviation Regulations ("FARs"), DOT regulations,
common carrier obligations and other applicable licensing agreements,
except for any such noncompliance which would not individually or in the
aggregate be expected to result in (taking into account the likelihood of
such result occurring and the expected magnitude of such event if it were
to occur) a material adverse effect. Except as otherwise set forth in any
documents filed by the Company or the Principal Operating Sub with the SEC
and publicly available prior to December 31, 1999, none of the Company or
any of its subsidiaries has received, since January 1, 1997, a notice or
other written communication alleging or identifying a possible material
violation of any statute, law, ordinance, rule, regulation, judgment, order
or decree of any Governmental Entity applicable to its businesses or
operations. Except as otherwise set forth in any documents filed by the
Company or the Principal Operating Sub with the SEC and publicly available
prior to December 31, 1999, the Company and its subsidiaries have in effect
all permits, licenses, variances, exemptions, authorizations, operating
certificates, Slots (as defined in Section 3.01(p)), air service
designations, franchises, orders and approvals of all Governmental
Entities, including the FAA and the DOT (collectively, "Permits"),
necessary or reasonably advisable for them to own, lease or operate their
properties and assets and to carry on their businesses as now conducted,
and there has occurred no violation of, default (with or without notice or
lapse of time or both) under, or event giving to others any right of
termination, amendment or cancelation of, with or without notice or lapse
of time or both, any such Permit, except where the failure to have in
effect such Permits or such violation, default or event would not
individually or in the aggregate be expected to result in (taking into
account the likelihood of such result occurring and the expected magnitude
of such event if it were to occur) a material adverse effect. The Company
does not believe that the Merger, in and of itself, would be expected to
cause (taking into account the likelihood of such result occurring) the
revocation or cancelation of any such Permit.

                  (j) Absence of Changes in Company Benefit Plans;
Employment Agreements. Since December 31, 1999, none of the Company or any
of its subsidiaries has (i) terminated, adopted, amended or agreed to amend
in any material respect any bonus, pension, profit sharing, deferred
compensation, incentive compensation, stock ownership, stock purchase,
stock appreciation, restricted stock, stock option, phantom stock,
performance, retirement, thrift, savings, stock bonus, cafeteria, paid
time-off, perquisite, fringe benefit, vacation, severance, disability,
death benefit, hospitalization, medical, welfare benefit or other plan,
program, policy, arrangement or understanding (whether or not legally
binding) providing benefits to any of the current or former directors,
officers, employees or consultants of the Company or any of its
subsidiaries (collectively, "Company Benefit Plans") (other than any such
actions taken with respect to Non-Significant Benefit Plans (as defined
below) in the ordinary course of business), (ii) made any material change
in any actuarial or other assumption used to calculate funding obligations
with respect to any Company Pension Plan (as defined in Section 3.01(m)) or
(iii) made any material change in the manner in which contributions to any
Company Pension Plan are made or the basis on which such contributions are
determined. There exist no employment, consulting, deferred compensation,
severance, termination or indemnification agreements or arrangements
between the Company or any of its subsidiaries, on the one hand, and any
current or former director, officer, employee or consultant of the Company
or any of its subsidiaries, on the other hand (collectively, "Company
Benefit Agreements") (other than Non-Significant Benefit Agreements (as
defined below)), and no Company Benefit Agreement (other than
Non-Significant Benefit Agreements) or Company Benefit Plan (other than
Non- Significant Benefit Plans) provides benefits that are contingent, or
the terms of which are materially altered, upon the occurrence of a
transaction involving the Company or its subsidiaries of the nature
contemplated by this Agreement. "Non-Significant Benefit Plans" means all
immaterial Company Benefit Plans which do not provide benefits to any
officers or directors of the Company or the Principal Operating Sub.
"Non-Significant Benefit Agreements" means all immaterial Company Benefit
Agreements which are not between the Company or the Principal Operating
Sub, on the one hand, and any current officer or director of the Company or
the Principal Operating Sub, on the other hand.

                  (k) Labor and Employment Matters. As of the date hereof,
Section 3.01(k) of the Company Disclosure Schedule sets forth a true and
complete list of all collective bargaining or other labor union contracts
(including all amendments thereto) applicable to any employees of the
Company or any of its subsidiaries. There is no labor dispute, strike, work
stoppage or lockout, or, to the knowledge of the Company, threat thereof,
by or with respect to any employee of the Company or any of its
subsidiaries, except where such dispute, strike, work stoppage or lockout
individually or in the aggregate would not be expected to result in (taking
into account the likelihood of such result occurring and the expected
magnitude of such event if it were to occur) a material adverse effect.
None of the Company or any of its subsidiaries has breached or otherwise
failed to comply with any provision of any collective bargaining or other
labor union contract applicable to any employees of the Company or any of
its subsidiaries and there are no grievances or complaints outstanding or,
to the knowledge of the Company, threatened against the Company or any of
its subsidiaries under any such Contract except for any breaches, failures
to comply, grievances or complaints that individually or in the aggregate
would not be expected to result in (taking into account the likelihood of
such result occurring and the expected magnitude of such event if it were
to occur) a material adverse effect. The Company has made available to
Parent and its representatives true and complete copies of all Contracts
listed on Section 3.01(k) of the Company Disclosure Schedule.

                  (l) Environmental Matters. (i) Permits and
Authorizations. Each of the Company and its subsidiaries possesses all
material Environmental Permits (as defined below) necessary to conduct its
businesses and operations as currently conducted.

                       (ii) Compliance. Each of the Company and its
      subsidiaries is in compliance in all material respects with all
      applicable Environmental Laws (as defined below) and all
      Environmental Permits, and none of the Company or its subsidiaries
      has received any (A) communication from any Governmental Entity or
      other person that alleges that the Company or any of its subsidiaries
      has violated or is liable under any Environmental Law other than
      communications with respect to violations or liabilities that would
      not be expected to result in (taking into account the likelihood of
      such result occurring and the expected magnitude of such event if it
      were to occur) a material adverse effect or (B) written request for
      material information pursuant to Section 104(e) of the U.S.
      Comprehensive Environmental Response, Compensation and Liability Act
      or similar state statute concerning the disposal of Hazardous
      Materials (as defined below).

                       (iii) Environmental Claims. There are no Environmental
      Claims (as defined below) (A) pending or, to the knowledge of the
      Company, threatened against the Company or any of its subsidiaries or
      (B) to the knowledge of the Company, pending or threatened against
      any person whose liability for any Environmental Claim the Company or
      any of its subsidiaries has retained or assumed, either contractually
      or by operation of law, in each case other than Environmental Claims
      that would not be expected to result in (taking into account the
      likelihood of such result occurring and the expected magnitude of
      such event if it were to occur) a material adverse effect. None of
      the Company or its subsidiaries has contractually retained or assumed
      any liabilities or obligations that would be expected to provide the
      basis for any Environmental Claim that would be expected to result in
      (taking into account the likelihood of such result occurring and the
      expected magnitude of such event if it were to occur) a material
      adverse effect.

                       (iv) Stage III Requirements. (A) None of the Company
      or any of its subsidiaries will be required to make material
      expenditures to comply with the Stage III noise reduction
      requirements promulgated by the FAA (the "Stage III Requirements") or
      other applicable noise reduction requirements and (B) the retirement
      or other discontinuation of use by the Company or any of its
      subsidiaries of any aircraft that will not be in compliance with the
      Stage III Requirements or other applicable noise reduction
      requirements would not individually or in the aggregate be expected
      to result in (taking into account the likelihood of such result
      occurring and the expected magnitude of such event if it were to
      occur) a material adverse effect.

                       (v) Releases. To the knowledge of the Company, there
      have been no Releases (as defined in Section 3.01(l)(vi)(D)) of any
      Hazardous Materials that could reasonably be expected to form the
      basis of any material Environmental Claim.

                       (vi) Definitions. (A) "Environmental Claims" means
      any and all administrative, regulatory or judicial actions, orders,
      decrees, suits, demands, demand letters, directives, claims, liens,
      investigations, proceedings or notices of noncompliance or
      violation by any Governmental Entity or other person alleging
      potential responsibility or liability (including potential
      responsibility or liability for costs of enforcement, investigation,
      cleanup, governmental response, removal or remediation, for natural
      resources damages, property damage, personal injuries or penalties or
      for contribution, indemnification, cost recovery, compensation or
      injunctive relief) arising out of, based on or related to (x) the
      presence, Release or threatened Release of, or exposure to, any
      Hazardous Materials at any location, whether or not owned, operated,
      leased or managed by the Company or any of its subsidiaries, or (y)
      circumstances forming the basis of any violation or alleged violation
      of any Environmental Law or Environmental Permit.

                       (B) "Environmental Laws" means all domestic or
                  foreign (whether national, federal, state, provincial or
                  otherwise) laws, rules, regulations, orders, decrees,
                  common law, judgments or binding agreements issued,
                  promulgated or entered into by or with any Governmental
                  Entity relating to pollution or protection of the
                  environment (including ambient air, surface water,
                  groundwater, soils or subsurface strata) or protection of
                  human health as it relates to the environment, including
                  laws and regulations relating to Releases or threatened
                  Releases of Hazardous Materials or otherwise relating to
                  the generation, manufacture, processing, distribution,
                  use, treatment, storage, transport, handling of or
                  exposure to Hazardous Materials.

                       (C) "Environmental Permits" means all permits,
                  licenses, registrations and other authorizations required
                  under applicable Environmental Laws.

                       (D) "Hazardous Materials" means all hazardous,
                  toxic, explosive or radioactive substances, wastes or
                  other pollutants, including petroleum or petroleum
                  distillates, asbestos or asbestos-containing material,
                  polychlorinated biphenyls ("PCBs") or PCB-containing
                  materials or equipment, radon gas, infectious or medical
                  wastes and all other substances or wastes of any nature
                  regulated pursuant to any Environmental Law.

                       (E) "Release" means any release, spill, emission,
                  leaking, dumping, injection, pouring, deposit, disposal,
                  discharge, dispersal, leaching or migration into the
                  environment (including ambient air, surface water,
                  groundwater, land surface or subsurface strata) or within
                  any building, structure, facility or fixture.

                  (m)  ERISA Compliance.  (i)  Section 3.01(m)(i) of the
Company Disclosure Schedule contains a true and complete list, as of the date
hereof, of all "employee welfare benefit plans" (as defined in Section 3(1)
of the Employee Retirement Income Security Act of 1974, as amended
("ERISA")), "employee pension benefit plans" (as defined in Section 3(2) of
ERISA) ("Company Pension Plans") and all other Company Benefit Plans
maintained or contributed to by the Company or any of its subsidiaries or
any person or entity that, together with the Company or any of its
subsidiaries, is treated as a single employer (a "Commonly Controlled
Entity") under Section 414(b), (c), (m) or (o) of the Internal Revenue Code
of 1986, as amended (the "Code"), for the benefit of any current or former
directors, officers, employees or consultants of the Company or any of its
subsidiaries, other than, in each case, any Non-Significant Benefit Plans.
The Company has provided or made available to Parent, to the extent
requested by Parent, true and complete copies of (1) each Company Benefit
Plan (or, in the case of any unwritten Company Benefit Plans, descriptions
thereof), (2) the most recent annual report on Form 5500 required to be
filed with the Internal Revenue Service (the "IRS") with respect to each
Company Benefit Plan (if any such report was required), (3) the most recent
summary plan description for each Company Benefit Plan for which such
summary plan description is required and (4) each trust agreement and group
annuity contract relating to any Company Benefit Plan, other than, in each
case, any Non-Significant Benefit Plans. Each Company Benefit Plan has been
administered in accordance with its terms, except where the failure so to
be administered individually or in the aggregate would not be expected to
result in (taking into account the likelihood of such result occurring and
the expected magnitude of such event if it were to occur) a material
adverse effect. The Company and its subsidiaries and all the Company
Benefit Plans are in compliance with all applicable provisions of ERISA and
the Code, except for instances of possible noncompliance that individually
or in the aggregate would not be expected to result in (taking into account
the likelihood of such result occurring and the expected magnitude of such
event if it were to occur) a material adverse effect.

                       (ii) Neither the Company nor any Commonly Controlled
      Entity has maintained, contributed to or been obligated to contribute
      to any Company Benefit Plan that is subject to Title IV of ERISA with
      respect to which the Company or any Commonly Controlled Entity has
      liabilities or obligations (whether accrued, absolute, contingent or
      otherwise).

                       (iii) With respect to any Company Benefit Plan (other
      than any Non-Significant Benefit Plan) that is an employee welfare
      benefit plan, there are no understandings, agreements or
      undertakings, written or oral, that would prevent any such plan
      (including any such plan covering retirees or other former employees)
      from being amended or terminated without material liability to the
      Company or any of its subsidiaries on or at any time after the
      Effective Time.

                       (iv) No current or former director, officer employee
      or consultant of the Company or any of its subsidiaries are party to
      any agreement or arrangement with the Company or any of its
      subsidiaries, nor are there any corporate policies in place, the
      benefits of which are contingent, or the terms of which are
      materially altered, upon the occurrence of a transaction involving
      the Company of the nature contemplated by this Agreement. Prior to
      the date of this Agreement, the Company has delivered to Parent a
      report that sets forth the Company's good faith estimate, as of the
      date of such report, of (x) the amount to be paid (subject to the
      exceptions described in such report and based upon the assumptions
      described in such report) to the current officers of the Company and
      the Principal Operating Sub and the president of each of the
      Company's three commuter subsidiaries under all Company Benefit
      Agreements and Company Benefit Plans (or the amount by which any of
      their benefits may be accelerated or increased) as a result of (i)
      the execution of this Agreement, (ii) the obtaining of the
      Stockholder Approval, (iii) the consummation of the Merger or the
      other transaction contemplated by this Agreement or (iv) the
      termination or constructive termination of the employment of such
      officers following one of the events set forth in clauses (i) through
      (iii) above and (y) the ramifications of such payments Sections 280G
      and 4999 of the Code.

                       (v) The deduction of any amount payable pursuant to
      the terms of the Company Benefit Plans or any other employment
      contracts or arrangements will not be subject to disallowance under
      Section 162(m) of the Code.

                       (vi)The Company has no liability or obligations,
      including under or on account of a Company Benefit Plan or Company
      Benefit Agreement, arising out of the Company's hiring of persons to
      provide services to the Company and treating such persons as
      consultants or independent contractors and not as employees of the
      Company, except where such liability or obligation would not be
      expected to result in (taking into account the likelihood of such
      result occurring and the expected magnitude of such event if it were
      to occur) a material adverse effect.

                  (n) Taxes. (i) Each of the Company and its subsidiaries
has filed all tax returns required to be filed by it or requests for
extensions to file such returns have been timely filed, granted and have
not expired, and all such returns are true and complete, except for such
failures to file or to have extensions granted that remain and such
inaccuracies that individually or in the aggregate would not be expected to
result in (taking into account the likelihood of such result occurring and
the expected magnitude of such event if it were to occur) a material
adverse effect. Each of the Company and its subsidiaries has paid (or the
Company has paid on its behalf) all taxes shown as due on such returns and
all material taxes otherwise due (including withholding taxes pursuant to
Sections 1441, 1442, 3121 and 3402 of the Code or similar provisions under
any foreign federal laws or any state or local laws, domestic or foreign),
except for such failures to pay that individually or in the aggregate would
not be expected to result in (taking into account the likelihood of such
result occurring and the expected magnitude of such event if it were to
occur) a material adverse effect, and the most recent financial statements
contained in the Filed SEC Documents adequately provide for all taxes
payable by the Company and its subsidiaries (in addition to any reserve for
deferred taxes established to reflect timing differences between book and
tax income) for all taxable periods and portions thereof accrued through
the date of such financial statements, except where the failure to have
such an adequate provision would not be expected to result in (taking into
account the likelihood of such result occurring and the expected magnitude
of such event if it were to occur) a material adverse effect.

                       (ii) No deficiencies for any taxes have been
      proposed, asserted or assessed against the Company or any of its
      subsidiaries that are not adequately reflected in the most recent
      financial statements contained in the Filed SEC Documents, except for
      deficiencies that individually or in the aggregate would not be
      expected to result in (taking into account the likelihood of such
      result occurring and the expected magnitude of such event if it were
      to occur) a material adverse effect, and no requests for waivers of
      the time to assess any such taxes have been granted or are pending.
      The United States Federal income tax returns of the Company and each
      of its subsidiaries consolidated in such returns have been either
      examined by and settled with the IRS or closed by virtue of the
      applicable statute of limitations. There is no audit, examination,
      deficiency or refund litigation pending with respect to taxes and
      during the past three years no taxing authority has given written
      notice of the intent to commence any such examination, audit or
      refund litigation and which such examination, audit or refund
      litigation has not yet ended. None of the assets or properties of the
      Company or any of its subsidiaries is subject to any material tax
      lien, other than any such liens for taxes which are not due and
      payable, which may thereafter be paid without penalty or the validity
      of which are being contested in good faith by appropriate proceedings
      and for which adequate provisions are being maintained in accordance
      with GAAP.

                       (iii) None of the Company or any of its subsidiaries
      has constituted either a "distributing corporation" or a "controlled
      corporation" in a distribution of stock outside of the affiliated
      group of which the Company is the common parent qualifying or
      intended to qualify for tax-free treatment under Section 355(a) of
      the Code (A) in the two years prior to the date of this Agreement or
      (B) in a distribution that could otherwise constitute part of a
      "plan" or "series of related transactions" (within the meaning of
      Section 355(e) of the Code) in conjunction with the Merger.

                       (iv) As used in this Agreement, "taxes" shall
      include all (x) domestic and foreign (whether national, federal,
      state, provincial, local or otherwise) income, franchise, property,
      sales, excise, employment, payroll, social security, value-added, ad
      valorem, transfer, withholding and other taxes, including taxes based
      on or measured by gross receipts, profits, sales, use or occupation,
      tariffs, levies, impositions, assessments or governmental charges of
      any nature whatsoever, including any interest penalties or additions
      with respect thereto, (y) liability for the payment of any amounts of
      the type described in clause (x) as a result of being a member of an
      affiliated, consolidated, combined or unitary group, and (z)
      liability for the payment of any amounts as a result of being party
      to any tax sharing agreement or as a result of any express or implied
      obligation to indemnify any other person with respect to the payment
      of any amounts of the types described in clause (x) or (y).

                  (o) Aircraft. (i) Section 3.01(o)(i) of the Company
Disclosure Schedule sets forth a true and complete list of all aircraft
owned, leased or operated by the Company or any of its subsidiaries as of
April 30, 2000. All aircraft owned, leased or operated by the Company or
any of its subsidiaries (other than the Non-Operating Aircraft (as defined
below) and the Excluded Leased Aircraft (as defined below)) are in
airworthy condition and are being maintained according to applicable FAA
regulatory standards and the FAA-approved maintenance program of the
Company and its subsidiaries. The Company and its subsidiaries have
implemented plans with respect to their respective aircraft (other than the
Non- Operating Aircraft and Excluded Leased Aircraft) and engines that, if
complied with, would result in the satisfaction of all requirements under
all applicable ADs and FARs required to be complied with in accordance with
the FAA-approved maintenance program of the Company and its subsidiaries,
and the Company and its subsidiaries are in compliance with such plans in
all material respects and currently have no reason to believe that they
will not satisfy any component of such plan on or prior to the dates
specified in such plan. No Non-Operating Aircraft is currently included in,
or is currently contemplated by the Company to be included in, the active
fleet of the Company or any of its subsidiaries. All lease agreements
relating to the lease of an Excluded Leased Aircraft by the Company or any
of its subsidiaries to a third party lessee contain a customary undertaking
by the third party lessee with respect to maintaining such Excluded Leased
Aircraft in accordance with FAA regulatory standards and requirements under
applicable ADs and FARs. The term "Non-Operating Aircraft" means each
aircraft of the Company or any of its subsidiaries identified on Section
3.01(o)(i) of the Company Disclosure Schedule as not being in operation.
The term "Excluded Leased Aircraft" means each aircraft owned or leased by
the Company that has been leased to a third party lessee and with respect
to which neither the Company nor any of its subsidiaries has retained any
maintenance obligations.

                       (ii) Except as identified in writing by the Company
      to Parent prior to the date of this Agreement, Section 3.01(o)(ii) of
      the Company Disclosure Schedule sets forth a true and complete list,
      as of the date hereof, containing all Contracts (other than existing
      aircraft leases) pursuant to which the Company or any of its
      subsidiaries may purchase or lease aircraft, including the
      manufacturer and model of all aircraft subject to each Contract, the
      nature of the purchase or lease obligation (i.e., firm commitment,
      subject to reconfirmation or option), the anticipated delivery date
      of each aircraft and the other material terms of each Contract.
      Except as identified in writing by the Company to Parent prior to the
      date of this Agreement, the Company has delivered or made available
      to Parent true and complete copies of all Contracts listed on Section
      3.01(o)(ii) of the Company Disclosure Schedule, including all
      amendments thereto. The Company has also delivered to Parent a true
      and complete copy of the fleet plan for the Principal Operating Sub
      for the period ending December 31, 2004.

                  (p) Slots; Operating Rights. (i) Section 3.01(p)(i) of
the Company Disclosure Schedule sets forth a true and complete list of all
takeoff and landing slots and other similar takeoff and landing rights
(collectively, the "Slots") used or held by the Company or any of its
subsidiaries on the date of this Agreement at Slot-controlled airports,
including a true and complete list of all Slot lease agreements. The Slots
have been used 80% of each full and partial reporting period (as described
in 14 CFR ss. 93.227(i)) since December 31, 1999, except to the extent less
usage was permitted as provided under 14 CFR ss. 93.227. The Slots have not
been designated for the provision of essential air service under the
regulations of the FAA.

                       (ii) Section 3.01(p)(ii) of the Company Disclosure
      Schedule sets forth a true and complete list of all foreign operating
      rights and all foreign takeoff and landing authorizations and other
      similar takeoff and landing rights used by the Company or any of its
      subsidiaries on the date of this Agreement.

                  (q) Intellectual Property. (i) Each of the Company and
its subsidiaries owns, or is validly licensed or otherwise has the right to
use, all patents, patent rights, trademarks, trade secrets, trade names,
service marks, copyrights and other proprietary intellectual property
rights and computer programs (the "Intellectual Property Rights") used in
its business, except for such Intellectual Property Rights the failure of
which to own, license or otherwise have the right to use individually or in
the aggregate would not be expected to result in (taking into account the
likelihood of such result occurring and the expected magnitude of such
event if it were to occur) a material adverse effect.

                       (ii) None of the Company or any of its subsidiaries
      has infringed upon, misappropriated or otherwise violated any
      Intellectual Property Rights or other proprietary information of any
      other person, except for any such infringement, misappropriation or
      other violation that individually or in the aggregate would not be
      expected to result in (taking into account the likelihood of such
      result occurring and the expected magnitude of such event if it were
      to occur) a material adverse effect. None of the Company or any of
      its subsidiaries has received any written charge, complaint, claim,
      demand or notice alleging any such infringement, misappropriation or
      other violation (including any claim that the Company or any of its
      subsidiaries must license or refrain from using any Intellectual
      Property Rights or other proprietary information of any other person)
      that has not been settled or otherwise fully resolved, except for any
      such infringement, misappropriation or other violation that
      individually or in the aggregate would not be expected to result in
      (taking into account the likelihood of such result occurring and the
      expected magnitude of such event if it were to occur) a material
      adverse effect. To the Company's knowledge, no other person has
      infringed upon, misappropriated or otherwise violated any
      Intellectual Property Rights of the Company or any of its
      subsidiaries, except for any such infringement, misappropriation or
      other violation that individually or in the aggregate would not be
      expected to result in (taking into account the likelihood of such
      result occurring and the expected magnitude of such event if it were
      to occur) a material adverse effect.

                  (r) Business Combination Charter Provision. The approval
of this Agreement by the Board of Directors of the Company referred to in
Section 3.01(d) represents the only action necessary to ensure that ARTICLE
SIXTH of the Restated Certificate of Incorporation of the Company does not
and will not apply to the execution or delivery of this Agreement or the
consummation of the Merger.

                  (s) State Takeover Statutes. The approval of the Merger
by the Board of Directors of the Company referred to in Section 3.01(d)
constitutes approval of the Merger for purposes of Section 203 of the DGCL
and represents the only action necessary to ensure that Section 203 of the
DGCL does not and will not apply to the execution or delivery of this
Agreement or the consummation of the Merger and the other transactions
contemplated hereby. No other state takeover or similar statute or
regulation is applicable to this Agreement, the Merger or the other
transactions contemplated hereby.

                  (t) Voting Requirements. The affirmative vote at the
Stockholders Meeting (as defined in Section 5.01(b)) or any adjournment or
postponement thereof of the holders of a majority of the outstanding shares
of Company Common Stock in favor of adopting this Agreement (the
"Stockholder Approval") is the only vote of the holders of any class or
series of the Company's capital stock necessary to approve or adopt this
Agreement or the Merger. The affirmative vote of the holders of the Company
Common Stock is not necessary to approve any transaction contemplated by
this Agreement (other than the consummation of the Merger).

                  (u) Brokers. No broker, investment banker, financial
advisor or other person, other than Salomon Smith Barney Inc., the fees and
expenses of which will be paid by the Company, is entitled to any broker's,
finder's, financial advisor's or other similar fee or commission in
connection with the transactions contemplated by this Agreement based upon
arrangements made by or on behalf of the Company. The Company has delivered
to Parent true and complete copies of all agreements under which any such
fees or expenses are payable and all indemnification and other agreements
related to the engagement of the persons to whom such fees are payable.

                  (v) Opinion of Financial Advisor. The Company has
received the written opinion of Salomon Smith Barney Inc., in customary
form, to the effect that, as of the date of this Agreement, the
consideration to be received in the Merger by the Company's stockholders is
fair to the Company's stockholders from a financial point of view, a copy
of which opinion has been delivered to Parent.

                  (w) Other Matters. The information (other than forecasts)
furnished by the Company to Parent relating to the items (the "Specified
Matters") identified in a letter specifically referencing this Section of
the Agreement delivered by Parent to the Company on or prior to the date of
this Agreement is accurate in all material respects and, taking into
account the limited nature of the information disclosed, does not omit to
state any fact necessary in order to make such information not misleading.
There are no facts or terms with respect to the Specified Matters which
have not been disclosed to Parent which would be expected to result in
(taking into account the likelihood of such result occurring and the
expected magnitude of such event if it were to occur) a material adverse
effect. The forecasts dated April 25, 2000 delivered by or on behalf of the
Company to Parent relating to the Specified Matters were prepared on the
basis of assumptions the Company believes in good faith as of the date of
this Agreement to be reasonable and the Company has no knowledge as of the
date of this Agreement of any fact or information that would lead it to
believe that such assumptions are incorrect or misleading in any material
respect.

            SECTION 3.02 Representations and Warranties of Parent and Sub.
Parent and Sub represent and warrant to the Company as follows:

                  (a) Organization. Each of Parent and Sub is a corporation
duly organized, validly existing and in good standing under the laws of the
jurisdiction in which it is incorporated and has all requisite corporate
power and authority to carry on its business as now being conducted.

                  (b) Authority; Noncontravention. Parent and Sub have the
requisite corporate power and authority to execute and deliver this
Agreement and to consummate the transactions contemplated hereby. The
execution and delivery of this Agreement by Parent and Sub and the
consummation by Parent and Sub of the transactions contemplated hereby have
been duly authorized by all necessary corporate action on the part of
Parent and Sub and no other corporate proceedings on the part of Parent or
Sub, including the approval of their respective stockholders, are necessary
to approve this Agreement or to consummate the transactions contemplated
hereby. This Agreement has been duly executed and delivered by Parent and
Sub, as applicable, and constitutes a valid and binding obligation of
Parent and Sub, as applicable, enforceable against Parent and Sub, as
applicable, in accordance with its terms. The execution and delivery of
this Agreement and the consummation of the transactions contemplated hereby
and compliance with the provisions of this Agreement do not and will not
conflict with, or result in any violation or breach of, or default (with or
without notice or lapse of time, or both) under, or give rise to a right
of, or result in, termination, cancelation or acceleration of any
obligation or to loss of a material benefit under, or result in the
creation of any Lien upon any of the properties or assets of Parent under,
or give rise to any increased, additional, accelerated or guaranteed rights
or entitlements under, any provision of (i) the Restated Certificate of
Incorporation or By-laws of Parent or the certificate of incorporation or
by-laws (or similar organizational documents) of any of its subsidiaries
(including Sub), (ii) any Contract applicable to Parent or Sub or their
respective properties or assets or (iii) subject to the governmental
filings and other matters referred to in the following sentence, any (A)
statute, law, ordinance, rule or regulation or (B) judgment, order or
decree, in each case applicable to Parent or Sub or their respective
properties or assets, other than, in the case of clauses (ii) and (iii),
any such conflicts, violations, defaults, rights, losses or Liens that
individually or in the aggregate would not prevent or materially impede or
delay (taking into account the likelihood of such result occurring and the
expected magnitude of such event if it were to occur) the consummation of
the Merger or the other transactions contemplated hereby. No consent,
approval, order or authorization of, or registration, declaration or filing
with, any Governmental Entity is required by or with respect to Parent or
Sub in connection with the execution and delivery of this Agreement by
Parent and Sub or the consummation by Parent and Sub of the transactions
contemplated hereby or the compliance with the provisions of this
Agreement, except for (1) the filing of a premerger notification and report
form under the HSR Act or any other applicable competition, merger control,
antitrust or similar law or regulation, (2) any consent, approval, order,
authorization, registration, declaration or filing required to be received
from or made with any foreign regulatory authorities, (3) any filings
required under the rules and regulations of the FAA, (4) any filings
required under the rules and regulations of the DOT, (5) the filing of the
Certificate of Merger with the Secretary of State of the State of Delaware
and appropriate documents with the relevant authorities of other states in
which the Company is qualified to do business, (6) any consent, approval,
order, authorization, registration, declaration or filing required to be
received from or made with any Governmental Entity that generally regulates
aspects of airline operations, including, but not limited to, noise,
environmental, aircraft communications, agricultural, export/import and
customs and (7) such other consents, approvals, orders, authorizations,
registrations, declarations and filings the failure of which to be obtained
or made individually or in the aggregate would not impair in any material
respect the ability of Parent or Sub to perform its obligations under this
Agreement or prevent or materially delay the consummation of any of the
transactions contemplated by this Agreement.

                  (c) Interim Operations of Sub. Sub was formed solely for
the purpose of engaging in the transactions contemplated hereby and has
engaged in no business other than in connection with the transactions
contemplated by this Agreement.

                  (d)  Capital Resources.  Parent has or, on or prior to the
Closing Date, will have, sufficient cash to pay the Merger Consideration.

                  (e)  No Capital Ownership.  As of the date hereof, neither
Parent nor Sub own any shares of capital stock of the Company for purposes of
Section 203 of the DGCL.


                                 ARTICLE IV

                 Covenants Relating to Conduct of Business

            SECTION 4.01 Conduct of Business. (a) Conduct of Business by
the Company. During the period from the date of this Agreement to the
Effective Time, except as consented to in writing by Parent or as
specifically contemplated by this Agreement (including the Company
Disclosure Schedule), the Company shall, and shall cause its subsidiaries
to, carry on their respective businesses in the ordinary course consistent
with past practice and use their reasonable efforts to comply with all
applicable laws, rules and regulations and, to the extent consistent
therewith, use their reasonable efforts to preserve their assets and
preserve their relationships with customers, suppliers, employees,
licensors, licensees, distributors and others having business dealings with
them. Without limiting the generality of the foregoing, during the period
from the date of this Agreement to the Effective Time, except as consented
to in writing by Parent or as specifically contemplated by this Agreement
(including the Company Disclosure Schedule), the Company shall not, and
shall not permit any of its subsidiaries to:

                       (i) (x) declare, set aside or pay any dividends on,
      or make any other distributions (whether in cash, stock or property)
      in respect of, any of its capital stock, provided that Parent's
      consent shall not be required for dividends by a direct or indirect
      wholly owned subsidiary of the Company to its parent, (y) purchase,
      redeem or otherwise acquire any shares of its capital stock or any
      other securities of the Company or its subsidiaries or any options,
      warrants, calls or rights to acquire any such shares or other
      securities or (z) split, combine or reclassify any of its capital
      stock or issue or authorize the issuance of any other securities in
      respect of, in lieu of or in substitution for shares of its capital
      stock or any of its other securities;

                       (ii) issue, deliver, sell, pledge or otherwise
      encumber any shares of its capital stock, any other equity or voting
      interests or any securities convertible into, or exchangeable for, or
      any options, warrants, calls or rights to acquire, any such shares,
      voting securities or convertible securities or any stock appreciation
      rights or other rights that are linked to the price of Company Common
      Stock, provided that Parent's consent shall not be required for the
      issuance of shares of Company Common Stock upon the exercise of
      Company Stock Options in accordance with the terms of such options as
      in effect on the date of this Agreement;

                       (iii) amend its certificate of incorporation or
      by-laws (or similar organizational documents);

                       (iv) directly or indirectly acquire or agree to
      acquire (A) by merging or consolidating with, or by purchasing all or
      a substantial portion of the assets of, or by any other manner, any
      assets constituting a business or any corporation, partnership, joint
      venture or association or other entity or division thereof, or any
      direct or indirect interest in any of the foregoing, provided that
      the restrictions set forth in this Section 4.01(a)(iv)(A) shall not
      apply to the merger of any direct or indirect wholly owned subsidiary
      of the Company with or into the Company or any other direct or
      indirect wholly owned subsidiary of the Company, or (B) any asset,
      provided that the restrictions set forth in this Section
      4.01(a)(iv)(B) shall not apply to the acquisition or the agreement to
      acquire (1) assets which are not aircraft or engines (w) acquired in
      the ordinary course of business consistent with past practice with an
      individual purchase price equal to or less than $1,000,000, (x)
      acquired in response to unanticipated operational, competitive or
      economic factors if (I) such action is consistent with past practice,
      (II) the Company determines, based upon its reasonable judgment, that
      such action is an appropriate response to such factor and (III)
      Parent determines, based upon its reasonable judgment, that such
      action would not have a significant and adverse effect on Parent and
      its subsidiaries (which, for purposes of this clause (III), shall
      include the Company and its subsidiaries), (y) acquired reasonably in
      response to a regulatory requirement or mandate or (z) acquired in
      accordance with Section 4.01(a)(vii) and (2) new or used aircraft and
      engines pursuant to the transactions set forth in Section 4.01(a)(iv)
      (the "Acquired Aircraft/Engines Schedule") of the Company Disclosure
      Schedule;

                       (v) directly or indirectly sell, lease, license,
      sell and leaseback (other than, with respect to assets other than
      aircraft and engines, a sale and leaseback transaction disclosed in
      the Company Capital Budget), mortgage or otherwise encumber or
      subject to any Lien or otherwise dispose of any of its properties or
      assets or any interest therein, provided that the restrictions set
      forth in this Section 4.01(a)(v) shall not apply to (A) sales of
      assets in the ordinary course of business consistent with past
      practice with individual sale prices equal to or less than $1,000,000
      or (B) transactions contemplated by clause (vi)(x)(B) below;

                       (vi)(x) repurchase, prepay or incur any indebtedness
      or guarantee any indebtedness of another person or issue or sell any
      debt securities or options, warrants, calls or other rights to
      acquire any debt securities of the Company or any of its
      subsidiaries, guarantee any debt securities of another person, enter
      into any "keep well" or other agreement to maintain any financial
      statement condition of another person or enter into any arrangement
      having the economic effect of any of the foregoing, provided that the
      restrictions set forth in this Section 4.01(a)(vi)(x) shall not apply
      to (A) short-term borrowings incurred in the ordinary course of
      business consistent with past practice and (B) the incurrence of
      indebtedness to (I) finance the purchase or leasing of new aircraft
      and engines as set forth in the Acquired Aircraft/Engines Schedule,
      (II) refinance indebtedness that was incurred to finance the purchase
      or leasing of aircraft on terms no less favorable to the Company than
      the terms of the indebtedness to be refinanced or (III) purchase
      aircraft currently leased by a third party to the Company pursuant to
      the terms of the applicable lease agreement as in effect on the date
      of this Agreement, which financing, refinancing and purchases shall
      be effected either (1) in the ordinary course of business consistent
      with past practice or (2) as otherwise described in the Acquired
      Aircraft/Engines Schedule, or (y) make any loans, advances or capital
      contributions to, or investments in, any other person, provided that
      the restrictions set forth in this Section 4.01(a)(vi)(y) shall not
      apply to loans, advances or capital contributions to, or investments
      in, any other person (A) to the extent made in the ordinary course of
      business consistent with past practice and to the extent not
      otherwise prohibited by this Agreement, (B) to the extent made to, or
      in, the Company or any direct or indirect wholly owned subsidiary of
      the Company and (C) to the extent any such capital contributions are
      made to the Employee Stock Ownership Trust in an amount not to exceed
      the amount of principal and interest then due and owing under the
      ESOP Loan;

                       (vii) incur or commit to incur any capital
      expenditures, or any obligations or liabilities in connection
      therewith, (x) with respect to 2000, in any manner materially
      inconsistent with the Company's current capital budget for 2000, a
      true and complete copy of which has been provided to Parent prior to
      the date of this Agreement (the "Company Capital Budget"), and (y)
      with respect to 2001, (A) that in the aggregate exceed the aggregate
      amount of capital expenditures set forth in the Company Capital
      Budget or (B) that individually exceed $20,000,000, provided that the
      restrictions set forth in this Section 4.01(a)(vii) shall not apply
      to (1) cost variances experienced in the ordinary course of business
      consistent with past practice, (2) other expenditures made in
      response to unanticipated operational, competitive or economic
      factors if (I) such action is consistent with past practice, (II) the
      Company determines, based upon its reasonable judgment, that such
      action is an appropriate response to such factor and (III) Parent
      determines, based upon its reasonable judgment, that such action
      would not have a significant and adverse effect on Parent and its
      subsidiaries (which, for purposes of this clause (III), shall include
      the Company and its subsidiaries), (3) expenditures reasonably made
      in response to a regulatory requirement or mandate, (4) expenditures
      to acquire assets in the ordinary course of business consistent with
      past practice with individual purchase prices not to exceed
      $1,000,000 and (5) for each of 2000 and 2001, other expenditures in
      the ordinary course of business consistent with past practice in an
      aggregate amount not to exceed $20,000,000;

                       (viii) except as required by law, (x) pay,
      discharge, settle or satisfy any material claims (including claims of
      stockholders), liabilities or obligations (whether absolute, accrued,
      asserted or unasserted, contingent or otherwise), provided that the
      restrictions set forth in this Section 4.01(a)(viii)(x) shall not
      apply to the payment, discharge or satisfaction of claims,
      liabilities or obligations (A) in the ordinary course of business
      consistent with past practice, (B) as required by their terms as in
      effect on the date of this Agreement or (C) incurred since the date
      of this Agreement in the ordinary course of business consistent with
      past practice, or (y) waive, release, grant or transfer any right of
      material value, provided that the restrictions set forth in this
      Section 4.01(a)(viii)(y) shall not apply to any waiver, release,
      grant or transfer made in the ordinary course of business consistent
      with past practice, or (z) waive any material benefits of, or agree
      to modify in any materially adverse respect, or fail to enforce, or
      consent to any matter with respect to which its consent is required
      under, any material confidentiality, standstill or similar agreement
      to which the Company or any of its subsidiaries is a party;

                       (ix) enter into, modify, amend or terminate (A) any
      collective bargaining or other labor union contract applicable to the
      employees of the Company or any of its subsidiaries, provided that
      the restrictions set forth in this Section 4.01(a)(ix)(A) shall not
      apply to (1) immaterial modifications, amendments or terminations of
      such contracts made in the ordinary course of business consistent
      with past practice, (2) any modifications to such existing contracts
      pursuant to a "parity plus 1% review" (as such term is defined in the
      applicable contract) or (3) any modification, amendment or
      termination of any collective bargaining agreement to the extent
      required by a change in applicable law, (B) any Company Benefit
      Agreement or Company Benefit Plan providing for the payment of
      severance, compensation or benefits to any current or former
      director, officer, employee or consultant of the Company or any of
      its subsidiaries upon the termination of employment, provided that
      the restrictions set forth in this Section 4.01(a)(ix)(B) shall not
      apply to (I) any increase in cash compensation, (II) other immaterial
      changes in benefits (except for changes in benefits provided to
      officers other than as the result of immaterial changes made to
      Company Benefit Plans that are generally applicable to the employees
      of the Company or any of its subsidiaries that are not specifically
      directed at or do not disproportionately affect such officers) and
      (III) termination arrangements for employees (other than officers),
      which increases, changes or arrangements described above in clauses
      (I) through (III) are made in the ordinary course of business
      consistent with past practice and (IV) those actions taken by the
      Company to retain or attract employees in key positions as and to the
      extent consistent with the Retention Plan, or (C) any other material
      Contract to which the Company or any of its subsidiaries is a party,
      provided that the restrictions set forth in this Section
      4.01(a)(ix)(C) shall not apply to any modifications, amendments or
      terminations of any such Contract to the extent made in the ordinary
      course of business consistent with past practice;

                       (x) except as required to comply with applicable law
      or any provision of any Company Benefit Agreement, Company Benefit
      Plan or other Contract as in effect on the date of this Agreement,
      (A) take any action to fund or in any other way secure the payment of
      compensation or benefits under any Company Benefit Agreement, Company
      Benefit Plan or other Contract or (B) take any action to accelerate
      the vesting or payment of any compensation or benefit under any
      Company Benefit Agreement, Company Benefit Plan or other Contract;

                       (xi)(A) decrease or defer in any material respect
      the level of training provided to their employees or the level of
      costs expended in connection therewith, (B) fail to keep in effect
      any governmental route authority in effect and used by the Principal
      Operating Sub or any other subsidiary of the Company as of the date
      of this Agreement, provided that the restrictions set forth in this
      Section 4.01(a)(xi)(B) shall not apply to any such failure if such
      failure occurs in the ordinary course of business consistent with
      past practice, (C) make any material route changes, other than
      changes in the ordinary course of business consistent with past
      practice, (D) fail to maintain insurance at levels at least
      comparable to current levels or otherwise in a manner inconsistent
      with past practice, (E) establish any new pilot or flight attendant
      domicile cities or (F) take any action, or fail to take action, which
      action or failure could result in the loss of Slots of the Company or
      any of its subsidiaries with an aggregate value in excess of
      $7,500,000;

                       (xii)  take any action which would result in the
      Company's representation and warranty set forth in the fifth sentence
      of Section 3.01(d) not being accurate at any time after the date of
      this Agreement, disregarding solely for purposes of this clause (xii)
      the exception in such representation and warranty relating to matters
      which would not be expected to result in (taking into account the
      likelihood of such result occurring and the expected magnitude of
      such event if it were to occur) a material adverse effect;

                       (xiii) take any action that would be expected to result
      in (A) any representation and warranty of the Company set forth in
      this Agreement that is qualified as to materiality becoming untrue,
      (B) any such representation and warranty that is not so qualified
      becoming untrue in any material respect or (C) any condition to the
      Merger set forth in Article VI not being satisfied; or

                       (xiv) authorize any of, or commit, resolve or agree to
      take any of, the foregoing actions to the extent prohibited by the
      terms of this Agreement.

                  (b) Certain Tax Matters. During the period from the date
of this Agreement to the Effective Time, except as specifically
contemplated by this Agreement (including anything set forth in the Company
Disclosure Schedule as of the date of this Agreement), the Company shall,
and shall cause each of its subsidiaries to (i)(A) promptly notify Parent
upon the earlier of (x) receipt of notice of any suit, claim, action,
investigation, proceeding or audit (collectively, "Actions") pending
against or with respect to the Company or any of its subsidiaries in
respect of any material tax (which is material at the time of receipt of
such notice) and (y) any such Action becoming material to the Company and
its subsidiaries and (B) not settle or compromise any such Action without
Parent's consent; (ii) not make any material tax election without Parent's
consent; and (iii) not make any material change in tax accounting methods,
principles or practices except insofar as may have been required by a
change in GAAP or SEC accounting regulations or guidelines or applicable
law.

                  (c) Advice of Changes; Filings. The Company and Parent
shall confer on a regular basis regarding operational and other material
matters. The Company shall promptly advise Parent in writing of any change
or event of which it has knowledge that would be expected to result in
(taking into account the likelihood of such result occurring and the
expected magnitude of such event if it were to occur) a material adverse
effect. The Company and Parent shall each promptly provide the other copies
of all filings made by such party with any Governmental Entity in
connection with this Agreement and the transactions contemplated hereby,
other than the portions of such filings that include confidential
information.

                  (d) Consents. Parent shall not unreasonably withhold any
consent contemplated by Section 4.01(a) or (b) above. The reasonableness of
withholding any such consent shall be determined from Parent's point of
view, taking into account the relative burden to Parent and benefit to the
Company of granting such consent and any other factors which Parent
determines in good faith to be, and which are, of reasonable consequence to
it in connection with its determination.

            SECTION 4.02 No Solicitation. (a) The Company shall not, nor
shall it permit any of its subsidiaries to, or authorize or permit any
director, officer or employee of the Company or any of its subsidiaries or
any investment banker, attorney, accountant or other advisor or
representative of the Company or any of its subsidiaries to, directly or
indirectly, (i) solicit, initiate or encourage, or take any other action
knowingly to facilitate, any Takeover Proposal (as defined below) or (ii)
enter into, continue or otherwise participate in any discussions or
negotiations regarding, or furnish to any person any information with
respect to, or otherwise cooperate in any way with, any Takeover Proposal,
in each case other than a Takeover Proposal made by Parent; provided,
however, that at any time prior to obtaining the Stockholder Approval, the
Board of Directors of the Company may, in response to a bona fide written
Takeover Proposal that such Board of Directors determines in good faith is
reasonably likely to result in an Adverse Recommendation Change (as defined
below) or constitutes or is reasonably likely to lead to a Superior
Proposal (as defined below), and which Takeover Proposal was unsolicited
and did not otherwise result from a breach of this Section 4.02, and
subject to compliance with Section 4.02(c) and (d), (x) furnish information
with respect to the Company and its subsidiaries to the person making such
Takeover Proposal (and its representatives) pursuant to a customary
confidentiality agreement, provided that all such information is provided
on a prior or substantially concurrent basis to Parent, and (y) participate
in discussions or negotiations with the person making such Takeover
Proposal (and its representatives) regarding such Takeover Proposal.

            The term "Takeover Proposal" means any inquiry, proposal or
offer from any person relating to, or that is reasonably likely to lead to,
any direct or indirect acquisition, in one transaction or a series of
transactions, including any merger, consolidation, tender offer, exchange
offer, binding share exchange, business combination, recapitalization,
liquidation, dissolution, joint venture or similar transaction, of (A)
assets or businesses that constitute or represent 20% or more of the total
revenue, operating income, EBITDA or assets of the Company and its
subsidiaries, taken as a whole, or (B) 20% or more of the outstanding
shares of Company Common Stock or capital stock of, or other equity or
voting interests in, any of the Company's subsidiaries directly or
indirectly holding the assets or businesses referred to in clause (A)
above.

                  (b) Neither the Board of Directors of the Company nor any
committee thereof shall (i) withdraw (or modify in a manner adverse to
Parent or Sub) or propose publicly to withdraw (or modify in a manner
adverse to Parent or Sub) the recommendation or declaration of advisability
by such Board of Directors or any such committee of this Agreement or the
Merger, or recommend, or propose publicly to recommend, the approval or
adoption of any Takeover Proposal (other than a Takeover Proposal made by
Parent), unless the Board of Directors or a committee thereof determines in
good faith, based on such matters as it deems appropriate, after consulting
with legal counsel, that the failure to take such action would be
reasonably likely to result in a breach of its fiduciary duties under
applicable law (each such action being referred to herein as an "Adverse
Recommendation Change"), (ii) adopt or approve, or propose publicly to
adopt or approve, any Takeover Proposal, or withdraw its approval of the
Merger, or propose publicly to withdraw its approval of the Merger, (iii)
cause or permit the Company to enter into any letter of intent, memorandum
of understanding, agreement in principle, acquisition agreement, merger
agreement, option agreement, joint venture agreement, partnership agreement
or other agreement (each, an "Acquisition Agreement") constituting or
related to, or which is intended to or is reasonably likely to lead to, any
Takeover Proposal (other than a confidentiality agreement referred to in
Section 4.02(a)) or (iv) agree or resolve to take any of the actions
prohibited by clauses (i), (ii) or (iii) of this sentence. Notwithstanding
anything in this Section 4.02 to the contrary, at any time prior to
obtaining the Stockholder Approval, the Board of Directors of the Company
may, in response to a Superior Proposal that was unsolicited and that did
not otherwise result from a breach of Section 4.02(a), cause the Company to
terminate this Agreement pursuant to Section 7.01(f) and concurrently enter
into an Acquisition Agreement; provided, however, that the Company shall
not terminate this Agreement pursuant to Section 7.01(f), and any purported
termination pursuant to Section 7.01(f) shall be void and of no force or
effect, unless the Company shall have complied in all material respects
with the provisions of this Section 4.02, including the notification
provisions in this Section 4.02, and in all material respects with the
applicable requirements of Sections 5.06(b) and (c) (including the payment
of the Parent Termination Fee (as defined in Section 5.06(b)) prior to or
concurrently with such termination); and provided further, however, that
the Company shall not exercise its right to terminate this Agreement
pursuant to Section 7.01(f) until after the fifth business day following
Parent's receipt of written notice (a "Notice of Superior Proposal") from
the Company advising Parent that the Board of Directors of the Company has
received a Superior Proposal and specifying the terms and conditions of the
Superior Proposal and identifying the person making such Superior Proposal
(it being understood and agreed that any amendment to the price or any
other material term of a Superior Proposal shall require a new Notice of
Superior Proposal and a new five business day period). It is understood and
agreed that the termination of this Agreement in accordance with the
previous sentence shall not constitute a breach of any provision of this
Agreement.

            The term "Superior Proposal" means any bona fide binding
written offer not solicited by or on behalf of the Company or any of its
subsidiaries made by a third party that if consummated would result in such
third party (or in the case of a direct merger between such third party and
the Company, the stockholders of such third party) acquiring, directly or
indirectly, more than 50% of the voting power of the Company Common Stock
or all or substantially all the assets of the Company and its subsidiaries,
taken as a whole, for consideration consisting of cash and/or securities
that the Board of Directors of the Company determines in its good faith
judgment (after consultation with a financial advisor of nationally
recognized reputation) to be superior from a financial view to the
stockholders of the Company, taking into account, among other things, any
changes to the terms of this Agreement proposed by Parent in response to
such Superior Proposal or otherwise.

                  (c) In addition to the obligations of the Company set
forth in paragraphs (a) and (b) of this Section 4.02, the Company promptly
shall advise Parent in writing of any request for information that the
Company reasonably believes could lead to or contemplates a Takeover
Proposal or of any Takeover Proposal, or any inquiry the Company reasonably
believes could lead to any Takeover Proposal, the terms and conditions of
such request, Takeover Proposal or inquiry (including any subsequent
material amendment or modification to such terms and conditions) and the
identity of the person making any such request, Takeover Proposal or
inquiry. The Company shall keep Parent informed in all material respects of
the status and details (including material amendments or proposed
amendments) of any such request, Takeover Proposal or inquiry.

                  (d) Nothing contained in this Section 4.02 or elsewhere
in this Agreement shall prohibit the Company from (i) taking and disclosing
to its stockholders a position contemplated by Rule 14e-2(a) promulgated
under the Exchange Act or (ii) making any disclosure to the Company's
stockholders if, in the good faith judgment of the Board of Directors of
the Company, after consultation with outside counsel, failure so to
disclose would be inconsistent with applicable law; provided, however, that
in no event shall the Company or its Board of Directors or any committee
thereof take, agree or resolve to take any action prohibited by Section
4.02(b)(i) or 4.02(b)(ii).


                                 ARTICLE V

                           Additional Agreements

            SECTION 5.01 Preparation of the Proxy Statement; Stockholders
Meeting. (a) As promptly as practicable following the date of this
Agreement, the Company and Parent shall prepare and file with the SEC the
Proxy Statement and the Company shall use its reasonable efforts to respond
as promptly as practicable to any comments of the SEC with respect thereto
and to cause the Proxy Statement to be mailed to the Company's stockholders
as promptly as practicable following the date of this Agreement. The
Company shall promptly notify Parent upon the receipt of any comments from
the SEC or its staff or any request from the SEC or its staff for
amendments or supplements to the Proxy Statement and shall provide Parent
with copies of all correspondence between the Company and its
representatives, on the one hand, and the SEC and its staff, on the other
hand. Notwithstanding the foregoing, prior to filing or mailing the Proxy
Statement (or any amendment or supplement thereto) or responding to any
comments of the SEC with respect thereto, the Company (i) shall provide
Parent an opportunity to review and comment on such document or response,
(ii) shall include in such document or response all comments reasonably
proposed by Parent and (iii) shall not file or mail such document or
respond to the SEC prior to receiving Parent's approval, which approval
shall not be unreasonably withheld or delayed.

                  (b) The Company shall, as promptly as practicable
following the date of this Agreement, establish a record date (which will
be as promptly as reasonably practicable following the date of this
Agreement) for, duly call, give notice of, convene and hold a meeting of
its stockholders (the "Stockholders Meeting") for the purpose of obtaining
the Stockholder Approval, regardless of whether an Adverse Recommendation
Change has occurred at any time after the date of this Agreement. The
Company shall use its reasonable best efforts to cause the Stockholders
Meeting to be held as promptly as practicable following the date of this
Agreement. The Company shall, through its Board of Directors, recommend to
its stockholders that they adopt this Agreement, and shall include such
recommendation in the Proxy Statement, in each case subject to its rights
under Section 4.02(b)(i). Without limiting the generality of the foregoing,
the Company agrees that its obligations pursuant to this Section 5.01(b)
shall not be affected by the commencement, public proposal, public
disclosure or communication to the Company or any other person of any
Takeover Proposal.

            SECTION 5.02 Access to Information; Confidentiality. The
Company shall, and shall cause each of its subsidiaries to, afford to
Parent, and to Parent's officers, employees, investment bankers, attorneys,
accountants and other advisors and representatives, reasonable and prompt
access during normal business hours during the period prior to the
Effective Time or the termination of this Agreement to their respective
properties, assets, books, contracts, commitments, directors, officers,
employees, attorneys, accountants, auditors, other advisors and
representatives and records and, during such period, the Company shall, and
shall cause each of its subsidiaries to, make available to Parent on a
timely basis (a) a copy of each material report, schedule, form, statement
and other document received by it during such period pursuant to the
requirements of domestic or foreign (whether national, federal, state,
provincial, local or otherwise) laws and (b) all other information
concerning its business, properties and personnel as Parent may reasonably
request, in each case subject to any confidentiality restrictions or legal
restrictions that prohibit the Company's ability to provide any such
information to Parent. The Company shall, and shall cause each of its
subsidiaries to, (i) use their respective reasonable best efforts to cause
any confidentiality provision in any Contract to which the Company or any
of its subsidiaries becomes a party to be inapplicable to Parent, its
subsidiaries and their respective advisors or representatives and (ii) in
the event such reasonable best efforts are unsuccessful, provide notice to
Parent at least five business days prior to entering into such contract
that the Company or such subsidiary intends to enter into a Contract that
contains confidentiality provisions that would prohibit Parent, its
subsidiaries or their respective advisors or representatives from reviewing
such Contract. Parent will hold, and will direct its officers, employees,
investment bankers, attorneys, accountants and other advisors and
representatives to hold, any and all information received from the Company,
directly or indirectly, in confidence as and to the extent provided in the
Confidentiality Agreement dated March 3, 2000, between Parent and the
Company (as it may be amended from time to time, the "Confidentiality
Agreement"). The parties hereby agree that the term of the Confidentiality
Agreement is hereby amended such that it shall remain in full force and
effect until the one year anniversary of the date of termination of this
Agreement.

            SECTION 5.03 Efforts; Notification. (a) Upon the terms and
subject to the conditions set forth in this Agreement, in order to
consummate and make effective the Merger and the other transactions
contemplated by this Agreement, Parent shall effect the divestiture of the
assets and the provision of assets, facilities and services as described in
Exhibit A hereto to a person or persons reasonably acceptable to the
Company upon the terms and subject to the conditions set forth in Exhibit
A, it being understood that taking any or all of the actions described in
this sentence shall in no way limit Parent's obligations under the next
following sentence. In addition, each of the parties agrees to use all
reasonable efforts to take, or cause to be taken, all the other actions
that are necessary, proper or advisable to consummate and make effective
the Merger and the other transactions contemplated by this Agreement,
including using all reasonable efforts to accomplish the following: (i)
causing the conditions precedent set forth in Article VI to be satisfied,
(ii) obtaining all necessary actions or nonactions, waivers, consents,
approvals, orders and authorizations from Governmental Entities and the
making of all necessary registrations, declarations and filings and (iii)
obtaining all necessary consents, approvals or waivers from third parties.
The parties shall promptly after the date of this Agreement make all
necessary filings and registrations with the Governmental Entities,
including filings under the HSR Act and submissions of information
requested by Governmental Entities. In connection with and without limiting
the foregoing, the Company and its Board of Directors shall, if any state
takeover statute or similar statute or regulation is or becomes applicable
to this Agreement, the Merger or any of the other transactions contemplated
hereby, use its reasonable efforts to ensure that the Merger and the other
transactions contemplated by this Agreement are consummated as promptly as
practicable on the terms contemplated by this Agreement and otherwise to
minimize the effect of such statute or regulation on this Agreement, the
Merger and the other transactions contemplated hereby. The Company and
Parent will provide such assistance, information and cooperation to each
other as is reasonably required to obtain any such waivers, consents,
approvals, orders, and authorizations referred to above and, in connection
therewith, will notify the other person promptly following the receipt of
any comments from any Governmental Entity and of any request by any
Governmental Entity for amendments, supplements or additional information
in respect of any registration, declaration or filing with such
Governmental Entity and will supply the other person with copies of all
correspondence between such person and any of its representatives, on the
one hand, and any Governmental Entity on the other hand.

                  (b) The Company shall give prompt notice to Parent of any
representation or warranty made by it contained in this Agreement becoming
untrue or inaccurate such that the condition set forth in Section 6.02(a)
would not be satisfied (a "Failed Section 6.02(a) Condition"); provided,
however, that no such notification shall affect the representations,
warranties, covenants or agreements of the parties or the conditions to the
obligations of the parties under this Agreement except that, as to any such
notice of a Failed Section 6.02(a) Condition with respect to which Parent
has not within 25 days (i) disagreed, in a notice delivered to the Company,
with the Company's conclusion that the condition set forth in Section 6.02
would not be satisfied as a result of the circumstance described in such
notice by the Company, (ii) expressed the view, in a notice delivered to
the Company, that (A) it was in good faith considering waiving such Failed
Section 6.02(a) Condition (and would continue to comply with its
obligations under Section 5.03) or (B) it believed in good faith that it
did not yet have adequate information to form a reasonably complete view as
to the facts and circumstances with respect to the matter described in such
notice from the Company (which may include the magnitude of the harm
resulting from such circumstances), in which case such notice from Parent
shall identify for the Company the aspects of such information that Parent
is lacking, or (iii) terminated this Agreement pursuant to Section
7.01(d)(i) hereof, then the Failed Section 6.02(a) Condition shall be
deemed waived insofar as arising out of the circumstances set forth in such
notice. In the case of clause (ii) above, Parent shall give notice to the
Company promptly after (x) in the case of clause (ii)(A) it no longer is in
good faith considering waiving a Failed Section 6.02(a) Condition and (y)
in the case of clause (ii)(B), it believed in good faith that it had
adequate information to form a reasonably complete view as to the relevant
facts and circumstances, and, in either such case, absent termination of
this Agreement by Parent within 20 days of such notice, such Failed Section
6.02(a) Condition shall be deemed waived at the end of such 20 day period.

                  (c) Parent shall give prompt notice to the Company of any
representation or warranty made by it or Sub contained in this Agreement
becoming untrue or inaccurate such that the condition set forth in Section
6.03(a) would not be satisfied; provided, however, that no such
notification shall affect the representations, warranties, covenants or
agreements of the parties or the conditions to the obligations of the
parties under this Agreement.

            SECTION 5.04 Company Stock Options. (a) As soon as practicable
following the date of this Agreement, the Board of Directors of the Company
(or, if appropriate, any committee administering the Company Stock Plans)
shall adopt such resolutions or take such other actions (if any) as may be
required to provide that each Company Stock Option outstanding immediately
prior to the Effective Time, together with each outstanding stock
appreciation right granted in tandem with such Company Stock Option, shall
be canceled in exchange for a lump sum cash payment equal to (1) the
product of (x) the number of shares of Company Common Stock subject to such
Company Stock Option and (y) the Merger Consideration, minus (2) the
product of (x) the number of shares of Company Common Stock subject to such
Company Stock Option and (y) the per share exercise price of such Company
Stock Option. Such payment shall be made promptly following the Effective
Time.

                  (b) The Company shall take all steps as may be required
to cause the transactions contemplated by this Section 5.04 and any other
dispositions of Company equity securities (including derivative securities)
in connection with this Agreement by each individual who is a director or
officer of the Company to be exempt under Rule 16b-3 promulgated under the
Exchange Act, such steps to be taken in accordance with the Interpretive
Letter dated January 12, 1999, issued by the SEC to Skadden, Arps, Slate,
Meagher & Flom LLP.

            SECTION 5.05 Indemnification, Exculpation and Insurance. (a)
Parent and Sub agree that all rights to indemnification and exculpation
from liabilities for acts or omissions occurring at or prior to the
Effective Time now existing in favor of the current or former directors or
officers of the Company and its subsidiaries as provided in their
respective certificates of incorporation or by-laws (or similar
organizational documents) shall be assumed by the Surviving Corporation in
the Merger, without further action, at the Effective Time and shall survive
the Merger and shall continue in full force and effect in accordance with
their terms.

                  (b) In the event that the Surviving Corporation or any of
its successors or assigns (i) consolidates with or merges into any other
person and is not the continuing or surviving corporation or entity of such
consolidation or merger or (ii) transfers or conveys all or substantially
all its properties and assets to any person, then, and in each such case,
Parent shall cause proper provision to be made so that the successors and
assigns of the Surviving Corporation assume the obligations set forth in
this Section 5.05.

                  (c) For six years after the Effective Time, Parent shall
maintain in effect the Company's current directors' and officers' liability
insurance covering each person currently covered by the Company's
directors' and officers' liability insurance policy for acts or omissions
occurring prior to the Effective Time on terms with respect to such
coverage and amounts no less favorable in any material respect to such
directors and officers than those of such policy as in effect on the date
of this Agreement; provided that Parent may substitute therefor policies of
a reputable insurance company the material terms of which, including coverage
and amount, are no less favorable in any material respect to such directors
and officers than the insurance coverage otherwise required under this
Section 5.05(c); provided however, that in no event shall Parent be
required to pay aggregate premiums for insurance under this Section 5.05(c)
in excess of 250% of the amount of the aggregate premiums paid by the
Company for 1999 for such purpose (which 1999 premiums are hereby
represented and warranted by the Company to be equal to the amount
identified in writing by the Company to Parent prior to the date of this
Agreement), provided that Parent shall nevertheless be obligated to provide
such coverage as may be obtained for such 250% amount.

                  (d) From and after the Effective Time, Parent shall
unconditionally guarantee the timely payment of all funds owed by, and the
timely performance of all other obligations of, the Surviving Corporation
under this Section 5.05. Parent agrees that its payment obligations
hereunder are unconditional, irrespective of the validity or enforceability
of this Agreement against the Surviving Company or any other circumstance
which might otherwise constitute a legal or equitable discharge or defense
of a guarantor (other than the defenses of statute of limitations, which
are not waived). Parent hereby acknowledges that its obligations under this
Section 5.05 constitute a guaranty of payment and not merely of
collectability and Parent hereby waives (i) promptness, diligence,
presentment, demand of payment, protest and order in connection with this
guarantee and (ii) any requirement that any party enforcing the guarantee
exhaust any right to take any action against the Surviving Company or any
other person prior to or contemporaneously with proceeding to exercise any
right against Parent hereunder.

                  (e) The provisions of this Section 5.05 are intended to
be for the benefit of, and will be enforceable by, each indemnified party,
his or her heirs and his or her representatives.

            SECTION 5.06 Fees and Expenses. (a) Except as set forth in
Section 5.06(c), all fees and expenses incurred in connection with this
Agreement, the Merger and the other transactions contemplated by this
Agreement shall be paid by the party incurring such fees or expenses,
whether or not the Merger is consummated.

                  (b) In the event that (i) (A) a Takeover Proposal has been
made to the Company or its stockholders or any person has announced an
intention (whether or not conditional and whether or not withdrawn) to make a
Takeover Proposal, (B) thereafter this Agreement is terminated by either
Parent or the Company pursuant to Section 7.01(b)(i) (but only if the
Stockholders Meeting has not been held by the date that is five business
days prior to the date of such termination) or 7.01(b)(iii) and (C) within
12 months after such termination, the Company or any of its subsidiaries
enters into any Acquisition Agreement with respect to, or consummates, any
Takeover Proposal (solely for purposes of this Section 5.06(b)(i)(C), the
term "Takeover Proposal" shall have the meaning set forth in the definition
of Takeover Proposal contained in Section 4.02(a) except that all
references to 20% shall be deemed references to 40%), (ii) this Agreement
is terminated by the Company pursuant to Section 7.01(f) or (iii) this
Agreement is terminated by Parent pursuant to Section 7.01(c), then the
Company shall pay Parent a fee equal to $150,000,000 (the "Parent
Termination Fee") by wire transfer of same day funds to an account
designated by Parent (x) in the case of a termination by the Company
pursuant to Section 7.01(f), concurrently with such termination, (y) in the
case of a termination by Parent pursuant to Section 7.01(c), within two
business days after such termination and (z) in the case of a payment as a
result of any event referred to in Section 5.06(b)(i)(C), upon the first to
occur of such events.

                  (c) If a Parent Termination Fee becomes payable to Parent
in accordance with Section 5.06(b), the Company shall reimburse Parent and
Sub for all their expenses incurred in connection with this Agreement
concurrently with the payment of such Parent Termination Fee to Parent;
provided, however, that the aggregate amount of such reimbursement shall
not exceed $10,000,000. All payments made pursuant to this Section 5.06(c)
shall be made by wire transfer of same day funds to an account designated
by Parent.

                  (d) In the event that this Agreement is terminated for
any reason other than pursuant to Sections 7.01(c), 7.01(d)(i) or 7.01(f),
then Parent shall, within two business days after such termination, pay to
the Company $50,000,000 (the "Company Termination Fee"). In the case where
this Agreement is terminated pursuant to Section 7.01(b)(i) or 7.01(b)(iii)
and Parent, subsequent to such termination, becomes entitled to payment of
the Parent Termination Fee pursuant to Section 5.06(b), the Company shall
refund to Parent the full amount of the Company Termination Fee, if any,
paid by Parent pursuant to this Section 5.06(d) concurrently with the
payment of such Parent Termination Fee. All payments made to the Company
pursuant to this Section 5.06(d) shall be made by wire transfer of same day
funds to an account designated by the Company.

            SECTION 5.07 Information Supplied. (a) The Company agrees that
none of the information included or incorporated by reference in the Proxy
Statement will, at the date it is filed with the SEC or mailed to the
Company's stockholders or at the time of the Stockholders Meeting, or at
the time of any amendment or supplement thereof, contain any untrue
statement of a material fact or omit to state any material fact required to
be stated therein or necessary in order to make the statements therein, in
light of the circumstances under which they are made, not misleading,
except that no covenant is made by the Company with respect to statements
made in the Proxy Statement based on information supplied by Parent or Sub
specifically for inclusion or incorporation by reference therein. The Proxy
Statement will comply as to form in all material respects with the
requirements of the Exchange Act and the rules and regulations promulgated
thereunder.

                  (b) Parent and Sub agree that none of the information
supplied or to be supplied by Parent or Sub specifically for inclusion in
the Proxy Statement will (except to the extent revised or superseded by
amendments or supplements contemplated hereby), at the date the Proxy
Statement is filed with the SEC or mailed to the Company's stockholders or
at the time of the Stockholders Meeting, contain any untrue statement of a
material fact or omit to state any material fact required to be stated
therein or necessary in order to make the statements therein, in light of
the circumstances under which they are made, not misleading.

            SECTION 5.08 Benefits Matters. (a) For purposes of this
Agreement, "Affected Employees" shall mean those individuals who are
classified as regular permanent employees of the Company and its
subsidiaries (including those so classified employees who are on vacation,
leave of absence, disability or maternity leave) as of the Effective Time
who are in jobs that will not be covered by collective bargaining or other
labor union contracts applicable to employees of Parent or the Company or
any of their subsidiaries after giving effect to the Merger.

                  (b) Parent shall, and shall cause the Surviving
Corporation to, give the Affected Employees full credit, for purposes of
eligibility, vesting and benefit accrual under any employee benefit plans
or arrangements maintained by Parent, the Surviving Corporation and their
respective subsidiaries, for the Affected Employees' service with the
Company and its subsidiaries to the same extent recognized by the Company
and its subsidiaries immediately prior to the Effective Time, except where
such crediting would result in a duplication of benefits. In addition,
Parent shall, and shall cause the Surviving Corporation to, give to each
Affected Employee who (i) is a current officer of the Company or the
Principal Operating Sub or is one of the three current director-level
employees of the Principal Operating Sub who satisfy the requirements of
clauses (ii) and (iii) of this sentence, (ii) was formerly employed by
Parent and its subsidiaries and (iii) who became employed by the Company
and its subsidiaries within three months of terminating employment with
Parent and its subsidiaries, full credit (as if there has been no break in
service) for purposes of eligibility, vesting and benefit accrual under any
employee benefit plans or arrangements maintained by Parent, the Surviving
Corporation and their respective subsidiaries, for such Affected Employee's
service with Parent and its subsidiaries prior to the Effective Time to the
same extent recognized by Parent and its subsidiaries immediately prior to
such Affected Employee's termination of employment with Parent and its
subsidiaries, except where such crediting would result in a duplication of
benefits. The foregoing provisions of this Section 5.08(b) shall not limit
or impair Parent's ability to offset under its plans, programs and
arrangements any benefits provided or accrued under the Company's benefit
plans, programs, or arrangements for the same period of service.

                  (c) Parent shall, and shall cause the Surviving
Corporation to, (i) waive all limitations as to preexisting conditions
exclusions and waiting periods with respect to participation and coverage
requirements applicable to the Affected Employees under any welfare benefit
plans in which such employees may be eligible to participate after the
Effective Time to the extent waived under the applicable Company plan
immediately prior to the Effective Time and (ii) provide each Affected
Employee with credit for any co-payments and deductibles paid prior to the
Effective Time in the calendar year in which the Effective Time occurs in
satisfying any applicable deductible or out-of-pocket requirements under
any welfare plans in which the Affected Employees are eligible to
participate after the Effective Time.

                  (d) Parent agrees to honor, and shall cause the Surviving
Corporation to honor, the Company Benefit Plans and Company Benefit
Agreements in accordance with their terms subject to any power to amend or
terminate such Company Benefit Plans and Company Benefit Agreements
contained therein. For a period of one year immediately following the
Effective Time, Parent shall, or shall cause the Surviving Corporation to,
provide to the Affected Employees while employed by the Surviving
Corporation or its subsidiaries employee benefit plans and arrangements not
materially less favorable in the aggregate to those provided to the
Affected Employees immediately prior to the Effective Time excluding, for
this purpose, equity-based compensation plans and arrangements; provided,
however, Parent will provide eligibility for option grants during such
one-year period to Affected Employees on the same basis as provided to
similarly situated employees of Parent and its subsidiaries. If an Affected
Employee becomes employed by Parent, such Affected Employee shall be
provided employee benefit plans and arrangements that are in the aggregate
not materially less favorable than the benefit plans and arrangements
provided to similarly situated employees of Parent.

                  (e) Parent acknowledges that (i) except as disclosed in
the Company Disclosure Schedule, the consummation of the Merger (or, if
otherwise provided under the applicable Company Benefit Plan or Company
Benefit Agreement, the approval of the Merger by the Company's
stockholders) shall constitute a "Change in Control" or a "Change of
Control" for purposes of each Company Benefit Plan and Company Benefit
Agreement listed on Section 3.01(m)(iv) of the Company Disclosure Schedule
in which such concept is relevant and (ii)(A) any termination of employment
by or of any individual identified on Section 5.08(e)(ii)(A) of the Company
Disclosure Schedule following the Effective Time and (B) any termination of
employment by or of any individual identified on Section 5.08(e)(ii)(B) of
the Company Disclosure Schedule during the period commencing six months
following the Effective Time and ending nine months following the Effective
Time, shall be deemed to be for "Good Reason" for purposes of any
employment agreement or other Company Benefit Agreement listed on Section
3.01(m)(iv) of the Company Disclosure Schedule, and any Company Benefit
Plan in which such individual participates.

            SECTION 5.09 Public Announcements. Parent and Sub, on the one
hand, and the Company, on the other hand, shall, to the extent reasonably
practicable, consult with each other before issuing, and give each other a
reasonable opportunity to review and comment upon, any press release or
other public statements with respect to this Agreement, the Merger and the
other transactions contemplated by this Agreement. The parties agree that
the initial press release to be issued with respect to the transactions
contemplated by this Agreement shall be in the form heretofore agreed to by
the parties.

            SECTION 5.10 Future Employment. For a period of two years
following the Closing Date, Parent shall, and shall cause the Surviving
Corporation to, offer continued employment to all non-officer employees of
the Company or any of its subsidiaries who are employed by the Company or
any of its subsidiaries at the Effective Time; provided, however, that this
Section 5.10 shall not apply to any employees of the Company or any of its
subsidiaries (i) who are discharged for cause or performance related
reasons or (ii) who are employees of a subsidiary of the Company which is
sold or transferred to a third party at or after the Effective Time.
Following the two year period specified in the prior sentence, Parent
shall, and shall cause the Surviving Corporation to, provide all former
non-officer, non-union employees of the Company and its subsidiaries the
same job security protection, if any, as provided to similarly-situated
employees of Parent and its subsidiaries.


                             ARTICLE VI

                        Conditions Precedent

            SECTION 6.01 Conditions to Each Party's Obligation to Effect
the Merger. The obligation of each party to effect the Merger is subject to
the satisfaction or waiver on or prior to the Closing Date of the following
conditions:

                  (a)  Stockholder Approval.  The Stockholder Approval shall
have been obtained.

                  (b) Antitrust. Any waiting period (and any extension
thereof) applicable to the Merger under the HSR Act or any other applicable
competition, merger control, antitrust or similar law or regulation shall
have been terminated or shall have expired.

                  (c) No Injunctions or Legal Restraints. No temporary
restraining order, preliminary or permanent injunction or other order or
decree issued by any court of competent jurisdiction or other legal
restraint or prohibition (collectively, "Legal Restraints") that has the
effect of preventing the consummation of the Merger shall be in effect.

            SECTION 6.02 Conditions to Obligations of Parent and Sub. The
obligations of Parent and Sub to effect the Merger are further subject to
the satisfaction or waiver on or prior to the Closing Date of the following
conditions:

                  (a) Representations and Warranties. The representations
and warranties of the Company contained herein that are qualified as to
materiality shall be true and correct, and the representations and
warranties of the Company contained herein that are not so qualified shall
be true and correct in all material respects, in each case as of the date
of this Agreement and as of the Closing Date with the same effect as though
made as of the Closing Date, except that the accuracy of representations
and warranties that by their terms speak as of a specified date will be
determined as of such date. Parent shall have received a certificate signed
on behalf of the Company by the chief executive officer or the chief
financial officer of the Company to such effect.

                  (b) Performance of Obligations of the Company. The
Company shall have performed in all material respects all obligations
required to be performed by it under this Agreement at or prior to the
Closing Date, and Parent shall have received a certificate signed on behalf
of the Company by the chief executive officer or the chief financial
officer of the Company to such effect.

                  (c) Legal Restraint. No Legal Restraint that has the
effect of (i) prohibiting or limiting in any material respect the ownership
or operation by the Company, Parent or any of their respective affiliates
of a material portion of the business or assets of the Company and its
subsidiaries, taken as a whole, or Parent and its subsidiaries, taken as a
whole, or to require any such person to dispose of or hold separate any
material portion of the business or assets of the Company and its
subsidiaries, taken as a whole, or Parent and its subsidiaries, taken as a
whole, as a result of the Merger; (ii) prohibiting Parent or any of its
affiliates from effectively controlling in any material respect a
substantial portion of the business or operations of the Company or its
subsidiaries; or (iii) imposing material limitations on the ability of
Parent or any of its affiliates to acquire or hold, or exercise full rights
of ownership of, any shares of Company Common Stock, including the right to
vote the Company Common Stock on all matters properly presented to the
stockholders of the Company shall be in effect.

                  (d) Consents. Parent shall have received evidence, in
form and substance reasonably satisfactory to it, that Parent or the
Company shall have obtained (i) all material consents, approvals,
authorizations, qualifications and orders of all Governmental Entities
legally required in connection with this Agreement and the transactions
contemplated by this Agreement and (ii) all other consents, approvals,
authorizations, qualifications and orders of Governmental Entities or third
parties required in connection with this Agreement and the transactions
contemplated by this Agreement, except, in the case of this clause (ii),
for those the failure of which to be obtained individually or in the
aggregate would not be expected to result in (taking into account the
likelihood of such result occurring and the expected magnitude of such
event if it were to occur) a material adverse effect.

            SECTION 6.03 Conditions to Obligation of the Company. The
obligation of the Company to effect the Merger is further subject to the
satisfaction or waiver on or prior to the Closing Date of the following
conditions:

                  (a) Representations and Warranties. The representations
and warranties of Parent and Sub contained herein that are qualified as to
materiality shall be true and correct, and the representations and
warranties of Parent contained herein that are not so qualified shall be
true and correct in all material respects, in each case as of the date of
this Agreement and as of the Closing Date with the same effect as though
made as of the Closing Date, except that the accuracy of representations
and warranties that by their terms speak as of a specified date will be
determined as of such date. The Company shall have received a certificate
signed on behalf of Parent by the chief executive officer or the chief
financial officer of Parent to such effect.

                  (b) Performance of Obligations of Parent and Sub. Parent
and Sub shall have performed in all material respects all obligations
required to be performed by them under this Agreement at or prior to the
Closing Date, and the Company shall have received a certificate signed on
behalf of Parent by the chief executive officer or the chief financial
officer of Parent to such effect.

            SECTION 6.04 Frustration of Closing Conditions. None of the
Company, Parent or Sub may rely on the failure of any condition set forth
in Section 6.01, 6.02 or 6.03, as the case may be, to be satisfied if such
party's breach of this Agreement has been a principal reason that such
condition has not been satisfied.

                                ARTICLE VII

                     Termination, Amendment and Waiver

            SECTION 7.01 Termination. This Agreement may be terminated, and
the Merger contemplated hereby may be abandoned, at any time prior to the
Effective Time, whether before or after the Stockholder Approval has been
obtained:

                  (a)  by mutual written consent of Parent, Sub and the
Company;

                  (b)  by either Parent or the Company:

                       (i) if the Merger shall not have been consummated by
      December 31, 2000 (the "Initial Termination Date", and as such may be
      extended pursuant to this paragraph, the "Termination Date");
      provided, however, that if on the Initial Termination Date the
      conditions to the Closing set forth in Sections 6.01(a), 6.01(b),
      6.01(c), 6.02(c) and 6.02(d) shall not have been fulfilled, but all
      other conditions to the Closing shall be fulfilled on such date or
      shall be capable of being fulfilled, then, if a written notice
      requesting an extension of the Termination Date has been delivered by
      Parent or the Company to the other at any time during the 45 day
      period ending on the Initial Termination Date, the Termination Date
      shall be extended to August 1, 2001; provided, however, that the
      right to terminate this Agreement pursuant to this Section 7.01(b)(i)
      shall not be available to any party whose breach of this Agreement
      has been a principal reason the Merger has not been consummated by
      such date;

                       (ii) if any Legal Restraint set forth in Section
      6.01(c) shall be in effect and shall have become final and
      nonappealable; provided, however, that the right to terminate this
      Agreement pursuant to this Section 7.01(b)(ii) shall not be available
      to any party whose breach of this Agreement has been a principal
      reason that such event has occurred; or

                       (iii) if the Stockholder Approval shall not have been
      obtained at the Stockholders Meeting duly convened therefor or any
      adjournment or postponement thereof;

                  (c)  by Parent in the event an Adverse Recommendation
Change has occurred in accordance with Section 4.02(b)(i);

                  (d) by Parent (i) if the Company shall have breached any
of its representations, warranties or covenants contained in this
Agreement, which breach (A) would give rise to the failure of a condition
set forth in Section 6.02(a) or 6.02(b), and (B) has not been or is
incapable of being cured by the Company within twenty business days after
its receipt of written notice thereof from Parent; or (ii) if any Legal
Restraint set forth in Section 6.02(c) shall be in effect and shall have
become final and nonappealable; provided, however, that the right to
terminate this Agreement pursuant to this Section 7.01(d)(ii) shall not be
available to Parent if any breach by Parent of this Agreement has been a
principal reason that such event occurred;

                  (e) by the Company if Parent shall have breached any of
its representations, warranties or covenants contained in this Agreement,
which breach (i) would give rise to the failure of a condition set forth in
Section 6.03(a) or 6.03(b), and (ii) has not been or is incapable of being
cured by Parent within twenty business days after its receipt of written
notice thereof from the Company; or

                  (f)  by the Company in accordance with the terms and
subject to the conditions of Section 4.02(b).

            SECTION 7.02 Effect of Termination. In the event of termination
of this Agreement by either the Company or Parent as provided in Section
7.01, this Agreement shall forthwith become void and have no effect,
without any liability or obligation on the part of Parent, Sub or the
Company, other than the provisions of Section 3.01(u), the last two
sentences of Section 5.02, Section 5.06, this Section 7.02 and Article
VIII; provided, however, that no such termination shall relieve any party
hereto from any liability or damages resulting from a wilful breach by a
party of any of its representations, warranties or covenants set forth in
this Agreement.

            SECTION 7.03 Amendment. This Agreement may be amended by the
parties hereto at any time, whether before or after the Stockholder
Approval has been obtained; provided, however, that after the Stockholder
Approval has been obtained, there shall be made no amendment that by law
requires further approval by stockholders of the parties without the
further approval of such stockholders. This Agreement may not be amended
except by an instrument in writing signed on behalf of each of the parties
hereto.

            SECTION 7.04 Extension; Waiver. At any time prior to the
Effective Time, the parties may (a) extend the time for the performance of
any of the obligations or other acts of the other parties, (b) waive any
inaccuracies in the representations and warranties contained herein or in
any document delivered pursuant hereto or (c) waive compliance with any of
the agreements or conditions contained herein; provided, however, that
after the Stockholder Approval has been obtained, there shall be made no
waiver that by law requires further approval by stockholders of the parties
without the further approval of such stockholders. Except as provided in
Section 5.03(b), any agreement on the part of a party to any such extension
or waiver shall be valid only if set forth in an instrument in writing
signed on behalf of such party. The failure or delay by any party to this
Agreement to assert any of its rights under this Agreement or otherwise
shall not constitute a waiver of such rights nor shall any single or
partial exercise by any party to this Agreement of any of its rights under
this Agreement preclude any other or further exercise of such rights or any
other rights under this Agreement.


                            ARTICLE VIII

                         General Provisions

            SECTION 8.01 Nonsurvival of Representations and Warranties.
None of the representations and warranties in this Agreement or in any
instrument delivered pursuant to this Agreement shall survive the Effective
Time. This Section 8.01 shall not limit any covenant or agreement of the
parties which by its terms contemplates performance after the Effective
Time.

            SECTION 8.02 Notices. All notices, requests, claims, demands
and other communications hereunder shall be in writing and shall be deemed
given if delivered personally or sent by overnight courier (providing proof
of delivery) to the parties at the following addresses (or at such other
address for a party as shall be specified by like notice):

            if to Parent or Sub, to:

                  UAL Corporation
                  1200 East Algonquin Road
                  Elk Grove Township, Illinois 60007

                  Attention:  General Counsel
                  with a copy to:  Chief Financial Officer

                  Cravath, Swaine & Moore
                  Worldwide Plaza
                  825 Eighth Avenue
                  New York, NY 10019

                  Attention: Allen Finkelson, Esq.
                             Scott A. Barshay, Esq.

            if to the Company, to:

                  US Airways Group, Inc.
                  2345 Crystal Drive
                  Arlington, Virginia 22227

                  Attention:  Executive Vice President -
                              Corporate Affairs and General
                              Counsel

                              Senior Vice President - Finance
                                and Chief Financial Officer

                  with a copy to:

                  Skadden, Arps, Slate, Meagher
                  & Flom LLP
                  Four Times Square
                  New York, NY 10036

                  Attention:  Peter Allan Atkins, Esq.
                              Eric L. Cochran, Esq.

            SECTION 8.03 Definitions.  For purposes of this Agreement:

                  (a) an "affiliate" of any person means another person
that directly or indirectly, through one or more intermediaries, controls,
is controlled by, or is under common control with, such first person;

                  (b) "material adverse effect" means any state of facts,
change, development, effect, condition or occurrence that is material and
adverse to the business, assets, properties, condition (financial or
otherwise) or results of operations of the Company and its subsidiaries,
taken as a whole, or to prevent or materially impede or delay the
consummation of the Merger or the other material transactions contemplated
by this Agreement, except for any state of facts, change, development,
effect, condition or occurrence (i) relating to the economy in general or
(ii) affecting the airline industry generally where such airline industry
state of facts, change, development, effect, condition or occurrence does
not arise out of the actions, failures to act or businesses of the Company
or any of its subsidiaries;

                  (c) "person" means an individual, corporation,
partnership, joint venture, association, trust, limited liability company,
Governmental Entity, unincorporated organization or other entity;

                  (d) a "subsidiary" of any person means another person of
which 50% or more of any class of capital stock, voting securities or other
equity interests are owned or controlled, directly or indirectly, by such
first person.

            SECTION 8.04 Interpretation. When a reference is made in this
Agreement to a Section, Subsection or Schedule, such reference shall be to
a Section or Subsection of, or a Schedule to, this Agreement unless
otherwise indicated. The table of contents and headings contained in this
Agreement are for reference purposes only and shall not affect in any way
the meaning or interpretation of this Agreement. Whenever the words
"include", "includes" or "including" are used in this Agreement, they shall
be deemed to be followed by the words "without limitation". The words
"hereof", "herein" and "hereunder" and words of similar import when used in
this Agreement shall refer to this Agreement as a whole and not to any
particular provision of this Agreement. The term "or" is not exclusive. The
definitions contained in this Agreement are applicable to the singular as
well as the plural forms of such terms. Any agreement or instrument defined
or referred to herein or in any agreement or instrument that is referred to
herein means such agreement or instrument as from time to time amended,
modified or supplemented. References to a person are also to its permitted
successors and assigns.

            SECTION 8.05 Counterparts. This Agreement may be executed in
one or more counterparts, all of which shall be considered one and the same
agreement and shall become effective when one or more counterparts have
been signed by each of the parties and delivered to the other parties.

            SECTION 8.06 Entire Agreement; No Third-Party Beneficiaries.
This Agreement (a) constitutes the entire agreement, and supersedes all
prior agreements and understandings, both written and oral, among the
parties with respect to the subject matter of this Agreement, except for
the Confidentiality Agreement and any agreement entered into by the parties
on the date of this Agreement, and (b) except for the provisions of Section
5.05, are not intended to confer upon any person other than the parties
hereto (and their respective successors and assigns) any rights or
remedies.

            SECTION 8.07 Governing Law. This Agreement shall be governed
by, and construed in accordance with, the laws of the State of Delaware,
regardless of the laws that might otherwise govern under applicable
principles of conflicts of laws of such state; provided, however, that the
term "best efforts" as used in Section 5.01(b) shall have the meaning
ascribed to such term under the laws of the State of New York, regardless
of the laws that might otherwise govern under applicable principles of
conflicts of laws of such state.

            SECTION 8.08 Assignment. Neither this Agreement nor any of the
rights, interests or obligations hereunder shall be assigned, in whole or
in part (except by operation of law, by any of the parties hereto without
the prior written consent of the other parties hereto, except that Sub may
assign, in its sole discretion, any of or all its rights, interests and
obligations under this Agreement to Parent or to any direct or indirect
wholly owned subsidiary of Parent, but no such assignment shall relieve
Parent of any of its obligations hereunder. Subject to the preceding
sentence, this Agreement shall be binding upon, inure to the benefit of and
be enforceable by, the parties hereto and their respective successors and
assigns.

            SECTION 8.09 Enforcement. The parties agree that irreparable
damage would occur in the event that any of the provisions of this
Agreement were not performed in accordance with their specific terms or
were otherwise breached. It is accordingly agreed that the partes shall be
entitled to an injunction or injunctions to prevent breaches of this
Agreement and to enforce specifically the terms and provisions of this
Agreement in any court of the United States located in the State of
Delaware or in any Delaware state court, this being in addition to any
other remedy to which they are entitled at law or in equity. In addition,
each of the parties hereto (a) consents to submit itself to the personal
jurisdiction of any court of the United States located in the State of
Delaware or of any Delaware state court in the event any dispute arises out
of this Agreement or the transactions contemplated by this Agreement, (b)
agrees that it will not attempt to deny or defeat such personal
jurisdiction by motion or other request for leave from any such court and
(c) agrees that it will not bring any action relating to this Agreement or
the transactions contemplated by this Agreement in any court other than a
court of the United States located in the State of Delaware or a Delaware
state court.


            IN WITNESS WHEREOF, Parent, Sub and the Company have caused
this Agreement to be signed by their respective officers thereunto duly
authorized, all as of the date first written above.



                                 UAL CORPORATION,

                                    by  /s/ Frederic F. Brace
                                       ------------------------------

                                      Name:  Frederic F. Brace
                                      Title:  Senior Vice President, Finance


                                 YELLOW JACKET ACQUISITION CORP.,

                                    by    /s/ Frederic F. Brace
                                        -----------------------------

                                      Name:  Frederic F. Brace
                                      Title:  Vice President and Tresurer


                                 US AIRWAYS GROUP, INC.,

                                    by    /s/ Lawrence M. Nagin
                                        -------------------------

                                      Name:  Lawrence M. Nagin
                                      Title: Executive Vice President -
                                             Corporate Affairs and
                                             General Counsel





                                                                  EXHIBIT A

                    Capital Air Divestiture Plan
                    ----------------------------

Capitol Air Assets:     Capitol Air will be comprised of the following assets:

                        (A)   Aircraft: If requested by the buyer, a number
                              and type of aircraft identified by Tar Heel
                              that are necessary and reasonably suited to
                              operate Capitol Air.

                        (B)   Slots: If requested by the buyer, a number of
                              jet and commuter slots at Reagan-National
                              Airport that are necessary to operate Capitol
                              Air, which number shall not exceed 106 jet
                              slots and 116 commuter slots. The timing and
                              identification numbers of such slots to be
                              reasonably agreed upon.

                        (C)   Gates: If requested by the buyer, up to eight
                              gates at Reagan-National Airport at locations
                              to be reasonably agreed upon that are
                              necessary and reasonably suited to operate
                              Capitol Air. All leases relating to such
                              facilities will be assumed by the buyer.

                        (D)   Airport Facilities: If requested by the
                              buyer, ticket counter and similar airport
                              facilities to be reasonably agreed upon that
                              are necessary and reasonably suited for the
                              buyer to operate Capitol Air. All leases
                              relating to such facilities will be assumed
                              by the buyer.

                        (E)   Maintenance Facility: If requested by the
                              buyer, Yellow Jacket's line maintenance
                              facility at Reagan-National Airport. The
                              lease relating to such facility will be
                              assumed by the buyer.

                        (F)   Other: If requested by the buyer, ground
                              handling equipment, spare parts and other
                              items to be reasonably agreed upon that are
                              necessary for the buyer to operate Capitol
                              Air.

                        The Capitol Air assets will not include any assets
                        not necessary to operate Capitol Air or any cash.
                        Capitol Air will continue the operations of Yellow
                        Jacket at Reagan-National Airport (other than the
                        Shuttle Business and certain flights to and from
                        Charlotte, Pittsburgh and Philadelphia).

                        "Shuttle Business" means all the assets primarily
                        used by Yellow Jacket in the operation of the
                        Yellow Jacket shuttle on the following routes: (1)
                        Boston - La Guardia Airport, (2) Boston -
                        Reagan-National Airport and (3) La Guardia -
                        Reagan-National Airport.

Capitol Air
Liabilities:            The buyer of Capitol Air will assume all liabilities
                        primarily related to Capitol Air.

Hub-to-Hub Routes:      The assets used to operate the Hub-to-Hub Routes will
                        be comprised of the following:

                        (A)   Aircraft: If requested by the buyer, Tar Heel
                              or its subsidiaries will wet-lease a number
                              and type of aircraft identified by Tar Heel
                              that are necessary and reasonably suited to
                              operate the Hub-to-Hub Routes during a
                              transition period on market terms to be
                              reasonably agreed upon.

                        (B)   Gates: If requested by the buyer, Tar Heel
                              will provide the Buyer with access to gates
                              that are necessary and reasonably suited to
                              operate the Hub-to-Hub Routes at each airport
                              that is part of the Hub-to-Hub Routes on
                              market terms to be reasonably agreed upon.

                        (C)   Other: If requested by the buyer, ground
                              handling equipment necessary and reasonably
                              suited for the buyer to operate the
                              Hub-to-Hub Routes.

                        On points behind each of the hubs on the Hub-to-Hub
                        Routes, Tar Heel will code share with the buyer by
                        permitting the buyer to put its code on Tar Heel's
                        flights. Tar Heel will enter into a ten year
                        pro-rate agreement with the buyer on terms to be
                        reasonably agreed upon and reasonably favorable to
                        the buyer in order to make the buyer a viable
                        competitor on the Hub-to-Hub Routes.

                        "Hub-to-Hub Routes" consist of the following
                        routes: (1) Philadelphia to Denver, Los Angeles and
                        San Francisco, (2) Charlotte to Chicago, Denver,
                        Los Angeles and San Francisco and (3) Pittsburgh to
                        Denver, Los Angeles and San Francisco.

Hub-to-Hub Routes
Liabilities:            The buyer of the Hub-to-Hub Routes will assume all
                        liabilities primarily related to the assets used to
                        operate the Hub-to-Hub Routes.

Employees:              If requested by the buyer, Tar Heel will provide to
                        the buyer on an interim basis, subject to receipt
                        of any necessary labor approvals, the employees
                        needed to operate Capitol Air or the Hub-to-Hub
                        Routes, as the case may be, on market terms to be
                        reasonably agreed upon.

Additional Support:     Tar Heel will provide frequent flyer program support
                        on market terms to be agreed upon.  In addition, Tar
                        Heel will, if requested by the buyer and if reasonably
                        practicable, provide to such buyer revenue accounting
                        services, maintenance services, training services, fuel
                        purchasing services and other services necessary for
                        such buyer to operate Capitol Air or the Hub-to-Hub
                        Routes, as the case may be, upon market terms to be
                        agreed upon.

Additional Assets:      If requested by the buyer of Capitol Air, [P] Airline,
                        Inc. ("Commuter Air") will be included in Capitol Air.

                        In this event, at the option of Tar Heel, either
                        (i) the buyer of Capitol Air will provide commuter
                        feed to Tar Heel and Yellow Jacket, on a code share
                        basis at market terms to be agreed upon, from
                        points behind Yellow Jacket hubs (the "Commuter
                        Feed Points") currently served by Commuter Air or
                        (ii) Tar Heel will retain the assets of Commuter
                        Air that are used to provide service to the
                        Commuter Feed Points.

                        If the buyer of Capitol Air is not an existing
                        mainline carrier, such buyer will, if requested by
                        Tar Heel, reasonably and in good faith explore
                        partnering opportunities with existing mainline
                        carriers.

Other                   Terms: The divestiture agreement with each buyer
                        will be negotiated by such buyer and Tar Heel and
                        will contain customary terms for transactions of
                        this type; provided, however, that Tar Heel's
                        obligation to indemnify any buyer shall be limited
                        to (x) in the case of losses relating to any breach
                        of a representation or warranty, 40% of the
                        purchase price paid to Tar Heel by such buyer, and
                        (y) in the case of all losses, the purchase price
                        paid by such buyer. The terms of the divestiture
                        agreement must be reasonably acceptable to both Tar
                        Heel and Yellow Jacket taking into account as a
                        primary objective obtaining antitrust clearance for
                        the merger.

Closing:                The obligation to effect the Capitol Air
                        divestiture and the Hub-to-Hub Route divestiture
                        will be contingent upon the satisfaction of all
                        conditions precedent to the closing of the Tar
                        Heel/Yellow Jacket merger (assuming such
                        divestiture is effected). The obligation to effect
                        the Capitol Air divestiture and the Hub-to-Hub
                        Route divestiture will also be continent upon
                        receipt of all consents required to permit the
                        buyers to operate Capitol Air and the Hub-to-Hub
                        Routes as contemplated herein. At the closing of
                        each transaction, the buyer will pay to Yellow
                        Jacket the cash purchase price agreed to by such
                        buyer. Tar Heel shall not be entitled to refrain
                        from selling Capitol Air or the assets relating to
                        the Hub-to-Hub Routes on the terms contained herein
                        on the basis that the cash purchase price to which
                        the potential buyer has agreed is inadequate value
                        for such assets.








                                                           APPENDIX B

                OPINION OF SALOMON SMITH BARNEY INC.


May 23, 2000


Board of Directors
US Airways Group, Inc.
2345 Crystal Drive
Arlington, VA   22227


Members of the Board:

      You have requested our opinion as to the fairness, from a financial
point of view, to the holders of common stock, par value $1.00 per share
("Company Common Stock"), of US Airways Group, Inc. (the "Company"), of the
consideration to be received by such holders pursuant to the Agreement and
Plan of Merger dated as of May 23, 2000 (the "Merger Agreement") among UAL
Corporation ("Parent"), Yellow Jacket Acquisition Corporation, a wholly
owned subsidiary of Parent ("Sub"), and the Company. As more fully
described in the Merger Agreement, upon the effectiveness of the proposed
merger (the "Merger") of Sub with and into the Company, each issued and
outstanding share of Company Common Stock (other than shares owned by
Parent, Sub or the Company and any shares subject to appraisal rights) will
be converted into the right to receive $60.00 in cash.

      In arriving at our opinion, we reviewed a draft dated May 23, 2000 of
the Merger Agreement and held discussions with certain senior officers of
the Company concerning the business, operations, financial condition and
prospects of the Company. We examined certain publicly available business
and financial information relating to, as well as certain financial
forecasts and other information and data for, the Company which were
provided to or otherwise discussed with us by the management of the
Company. We reviewed the financial terms of the Merger as set forth in the
Merger Agreement in relation to, among other things: current and historical
market prices and trading volumes of Company Common Stock; historical and
projected earnings and other operating data of the Company; and the
capitalization and financial condition of the Company. We considered, to
the extent publicly available, the financial terms of other transactions
recently effected which we considered relevant in evaluating the Merger and
analyzed certain financial, stock market and other publicly available
information relating to the businesses of other companies whose operations
we considered relevant in evaluating those of the Company. In addition to
the foregoing, we conducted such other analyses, studies and examinations
and considered such other financial, economic and market criteria as we
deemed appropriate in arriving at our opinion.

      In rendering our opinion, we have assumed and relied, without
independent verification, upon the accuracy and completeness of all
financial and other information and data publicly available or furnished to
or otherwise reviewed by or discussed with us. With respect to financial
forecasts provided to or otherwise reviewed by or discussed with us, we
have been advised by the management of the Company that such forecasts were
reasonably prepared reflecting the best currently available estimates and
judgments of the management of the Company as to the future financial
performance of the Company and we express no opinion as to such forecasts.
We have not made or been provided with an independent evaluation or
appraisal of the assets (including properties and facilities) or
liabilities (contingent or otherwise) of the Company nor have we made any
physical inspection of the properties, facilities or assets of the Company.
In connection with our engagement, we were not requested to, and we did
not, solicit third party indications of interest in all or a part of the
Company. We were not requested to consider, and our opinion does not
address, the relative merits of the Merger as compared to any alternative
business strategies that might exist for the Company or the effect of any
other transaction in which the Company might engage. Our opinion is
necessarily based upon information available to us and financial, stock
market and other conditions and circumstances as they exist, have been
disclosed to us and can be evaluated on the date hereof.

      Salomon Smith Barney Inc. has been engaged to render financial
advisory services to the Company in connection with the Merger and will
receive a fee for such services, a significant portion of which is
contingent upon consummation of the Merger. As you are aware, we and
certain of our affiliates beneficially own approximately 2,869,001 shares
of Company Common Stock. In addition, in the ordinary course of our
business, we and our affiliates may actively trade or hold the securities
of the Company and Parent for our own account or for the accounts of our
customers and, accordingly, may at any time hold a long or short position
in such securities. We have in the past provided investment banking
services to the Company and Parent unrelated to the Merger, for which
services we have received customary compensation. In addition, we and our
affiliates (including Citigroup Inc. and its affiliates) may maintain
relationships with the Company, Parent and their respective affiliates in
the ordinary course of their respective businesses.

      Our advisory services and the opinion expressed herein are provided
for the information of the Board of Directors of the Company in its
evaluation solely of the Merger, and our opinion is not intended to be and
does not constitute a recommendation to any shareholder as to how such
shareholder should vote in connection with the Merger. In addition, our
opinion does not address the Company's underlying business decision to
effect the Merger.

      Based upon and subject to the foregoing, we are of the opinion that,
as of the date hereof, the consideration to be received in the Merger by
the holders of Company Common Stock is fair from a financial point of view
to such holders.



                                          Very truly yours,

                                          SALOMON SMITH BARNEY INC.






                                                           APPENDIX C


         SECTION 262 OF THE DELAWARE GENERAL CORPORATION LAW

      Sec. 262 Appraisal Rights. -- (a) Any stockholder of a corporation of
this State who holds shares of stock on the date of the making of a demand
pursuant to subsection (d) of this section with respect to such shares, who
continuously holds such shares through the effective date of the merger or
consolidation, who has otherwise complied with subsection (d) of this
section and who has neither voted in favor of the merger or consolidation
nor consented thereto in writing pursuant to sec.228 of this title shall be
entitled to an appraisal by the Court of Chancery of the fair value of the
stockholder's shares of stock under the circumstances described in
subsections (b) and (c) of this section. As used in this section, the word
"stockholder" means a holder of record of stock in a stock corporation and
also a member of record of a nonstock corporation; the words "stock" and
"share" mean and include what is ordinarily meant by those words and also
membership or membership interest of a member of a nonstock corporation;
and the words "depository receipt" mean a receipt or other instrument
issued by a depository representing an interest in one or more shares, or
fractions thereof, solely of stock of a corporation, which stock is
deposited with the depository.

            (b) Appraisal rights shall be available for the shares of any
class or series of stock of a constituent corporation in a merger or
consolidation to be effected pursuant to sec.251 (other than a merger
effected pursuant to sec.251(g) of this title), sec.252, sec.254, sec.257,
sec.258, sec.263 or sec.264 of this title:

                  (1) Provided, however, that no appraisal rights under
this section shall be available for the shares of any class or series of
stock, which stock, or depository receipts in respect thereof, at the
record date fixed to determine the stockholders entitled to receive notice
of and to vote at the meeting of stockholders to act upon the agreement of
merger or consolidation, were either (i) listed on a national securities
exchange or designated as a national market system security on an
interdealer quotation system by the National Association of Securities
Dealers, Inc. or (ii) held of record by more than 2,000 holders; and
further provided that no appraisal rights shall be available for any shares
of stock of the constituent corporation surviving a merger if the merger
did not require for its approval the vote of the stockholders of the
surviving corporation as provided in subsection (f) of sec.251 of this
title.

                  (2) Notwithstanding paragraph (1) of this subsection,
appraisal rights under this section shall be available for the shares of
any class or series of stock of a constituent corporation if the holders
thereof are required by the terms of an agreement of merger or
consolidation pursuant to sec.251, 252, 254, 257, 258, 263 and 264 of this
title to accept for such stock anything except:

      a.    shares of stock of the corporation surviving or resulting from
            such merger or consolidation, or depository receipts in respect
            thereof;

      b.    shares of stock of any other corporation, or depository
            receipts in respect thereof, which shares of stock (or
            depository receipts in respect thereof) or depository receipts
            at the effective date of the merger or consolidation will be
            either listed on a national securities exchange or designated
            as a national market system security on an interdealer
            quotation system by the National Association of Securities
            Dealers, Inc. or held of record by more than 2,000 holders;

      c.    cash in lieu of fractional shares or fractional depository
            receipts described in the foregoing subparagraphs a. and b. of
            this paragraph; or

      d.    any combination of the shares of stock, depository receipts and
            cash in lieu of fractional shares or fractional depository
            receipts described in the foregoing subparagraphs a., b. and c.
            of this paragraph.

                  (3) In the event all of the stock of a subsidiary
Delaware corporation party to a merger effected under sec.253 of this title
is not owned by the parent corporation immediately prior to the merger,
appraisal rights shall be available for the shares of the subsidiary
Delaware corporation.

            (c) Any corporation may provide in its certificate of
incorporation that appraisal rights under this section shall be available
for the shares of any class or series of its stock as a result of an
amendment to its certificate of incorporation, any merger or consolidation
in which the corporation is a constituent corporation or the sale of all or
substantially all of the assets of the corporation. If the certificate of
incorporation contains such a provision, the procedures of this section,
including those set forth in subsections (d) and (e) of this section, shall
apply as nearly as is practicable.

            (d) Appraisal rights shall be perfected as follows:

                  (1) If a proposed merger or consolidation for which
appraisal rights are provided under this section is to be submitted for
approval at a meeting of stockholders, the corporation, not less than 20
days prior to the meeting, shall notify each of its stockholders who was
such on the record date for such meeting with respect to shares for which
appraisal rights are available pursuant to subsections (b) or (c) hereof
that appraisal rights are available for any or all of the shares of the
constituent corporations, and shall include in such notice a copy of the
section. Each stockholder electing to demand the appraisal of such
stockholder's shares shall deliver to the corporation, before the taking of
the vote on the merger or consolidation, a written demand for appraisal of
such stockholder's shares. Such demand will be sufficient if it reasonably
informs the corporation of the identity of the stockholder and that the
stockholder intends thereby to demand the appraisal of such stockholder's
shares. A proxy or vote against the merger or consolidation shall not
constitute such a demand. A stockholder electing to take such action must
do so by a separate written demand as herein provided. Within 10 days after
the effective date of such merger or consolidation, the surviving or
resulting corporation shall notify each stockholder of each constituent
corporation who has complied with this subsection and has not voted in
favor of or consented to the merger or consolidation of the date that the
merger or consolidation has become effective; or

                  (2) If the merger or consolidation was approved pursuant
to sec.228 or sec.253 of this title, each constituent corporation, either
before the effective date of the merger or consolidation or within ten days
thereafter, shall notify each of the holders of any class or series of
stock of such constituent corporation who are entitled to appraisal rights
of the approval of the merger or consolidation and that appraisal rights
are available for any or all shares of such class or series of stock of
such constituent corporation, and shall include in such notice a copy of
this section; provided that, if the notice is given on or after the
effective date of the merger or consolidation, such notice shall be given
by the surviving or resulting corporation to all such holders of any class
or series of stock of a constituent corporation that are entitled to
appraisal rights. Such notice may, and, if given on or after the effective
date of the merger or consolidation, shall, also notify such stockholders
of the effective date of the merger or consolidation. Any stockholder
entitled to appraisal rights may, within 20 days after the date of mailing
of such notice, demand in writing from the surviving or resulting
corporation the appraisal of such holder's shares. Such demand will be
sufficient if it reasonably informs the corporation of the identity of the
stockholder and that the stockholder intends thereby to demand the
appraisal of such holder's shares. If such notice did not notify
stockholders of the effective date of the merger or consolidation, either
(i) each such constituent corporation shall send a second notice before the
effective date of the merger or consolidation notifying each of the holders
of any class or series of stock of such constituent corporation that are
entitled to appraisal rights of the effective date of the merger or
consolidation or (ii) the surviving or resulting corporation shall send
such a second notice to all such holders on or within 10 days after such
effective date; provided, however, that if such second notice is sent more
than 20 days following the sending of the first notice, such second notice
need only be sent to each stockholder who is entitled to appraisal rights
and who has demanded appraisal of such holder's shares in accordance with
this subsection. An affidavit of the secretary or assistant secretary or of
the transfer agent of the corporation that is required to give either
notice that such notice has been given shall, in the absence of fraud, be
prima facie evidence of the facts stated therein. For purposes of
determining the stockholders entitled to receive either notice, each
constituent corporation may fix, in advance, a record date that shall be
not more than 10 days prior to the date the notice is given, provided, that
if the notice is given on or after the effective date of the merger or
consolidation, the record date shall be such effective date. If no record
date is fixed and the notice is given prior to the effective date, the
record date shall be the close of business on the day next preceding the
day on which the notice is given.

                  (e) Within 120 days after the effective date of the
merger or consolidation, the surviving or resulting corporation or any
stockholder who has complied with subsections (a) and (d) hereof and who is
otherwise entitled to appraisal rights, may file a petition in the Court of
Chancery demanding a determination of the value of the stock of all such
stockholders. Notwithstanding the foregoing, at any time within 60 days
after the effective date of the merger or consolidation, any stockholder
shall have the right to withdraw such stockholder's demand for appraisal
and to accept the terms offered upon the merger or consolidation. Within
120 days after the effective date of the merger or consolidation, any
stockholder who has complied with the requirements of subsections (a) and
(d) hereof, upon written request, shall be entitled to receive from the
corporation surviving the merger or resulting from the consolidation a
statement setting forth the aggregate number of shares not voted in favor
of the merger or consolidation and with respect to which demands for
appraisal have been received and the aggregate number of holders of such
shares. Such written statement shall be mailed to the stockholder within 10
days after such stockholder's written request for such a statement is
received by the surviving or resulting corporation or within 10 days after
expiration of the period for delivery of demands for appraisal under
subsection (d) hereof, whichever is later.

            (f) Upon the filing of any such petition by a stockholder,
service of a copy thereof shall be made upon the surviving or resulting
corporation, which shall within 20 days after such service file in the
office of the Register in Chancery in which the petition was filed a duly
verified list containing the names and addresses of all stockholders who
have demanded payment for their shares and with whom agreements as to the
value of their shares have not been reached by the surviving or resulting
corporation. If the petition shall be filed by the surviving or resulting
corporation, the petition shall be accompanied by such a duly verified
list. The Register in Chancery, if so ordered by the Court, shall give
notice of the time and place fixed for the hearing of such petition by
registered or certified mail to the surviving or resulting corporation and
to the stockholders shown on the list at the addresses therein stated. Such
notice shall also be given by 1 or more publications at least 1 week before
the day of the hearing, in a newspaper of general circulation published in
the City of Wilmington, Delaware or such publication as the Court deems
advisable. The forms of the notices by mail and by publication shall be
approved by the Court, and the costs thereof shall be borne by the
surviving or resulting corporation.

            (g) At the hearing on such petition, the Court shall determine
the stockholders who have complied with this section and who have become
entitled to appraisal rights. The Court may require the stockholders who
have demanded an appraisal for their shares and who hold stock represented
by certificates to submit their certificates of stock to the Register in
Chancery for notation thereon of the pendency of the appraisal proceedings;
and if any stockholder fails to comply with such direction, the Court may
dismiss the proceedings as to such stockholder.

            (h) After determining the stockholders entitled to an
appraisal, the Court shall appraise the shares, determining their fair
value exclusive of any element of value arising from the accomplishment or
expectation of the merger or consolidation, together with a fair rate of
interest, if any, to be paid upon the amount determined to be the fair
value. In determining such fair value, the Court shall take into account
all relevant factors. In determining the fair rate of interest, the Court
may consider all relevant factors, including the rate of interest which the
surviving or resulting corporation would have had to pay to borrow money
during the pendency of the proceeding. Upon application by the surviving or
resulting corporation or by any stockholder entitled to participate in the
appraisal proceeding, the Court may, in its discretion, permit discovery or
other pretrial proceedings and may proceed to trial upon the appraisal
prior to the final determination of the stockholder entitled to an
appraisal. Any stockholder whose name appears on the list filed by the
surviving or resulting corporation pursuant to subsection (f) of this
section and who has submitted such stockholder's certificates of stock to
the Register in Chancery, if such is required, may participate fully in all
proceedings until it is finally determined that such stockholder is not
entitled to appraisal rights under this section.

            (i) The Court shall direct the payment of the fair value of the
shares, together with interest, if any, by the surviving or resulting
corporation to the stockholders entitled thereto. Interest may be simple or
compound, as the Court may direct. Payment shall be so made to each such
stockholder, in the case of holders of uncertificated stock forthwith, and
the case of holders of shares represented by certificates upon the
surrender to the corporation of the certificates representing such stock.
The Court's decree may be enforced as other decrees in the Court of
Chancery may be enforced, whether such surviving or resulting corporation
be a corporation of this State or of any state.

            (j) The costs of the proceeding may be determined by the Court
and taxed upon the parties as the Court deems equitable in the
circumstances. Upon application of a stockholder, the Court may order all
or a portion of the expenses incurred by any stockholder in connection with
the appraisal proceeding, including, without limitation, reasonable
attorney's fees and the fees and expenses of experts, to be charged pro
rata against the value of all the shares entitled to an appraisal.

            (k) From and after the effective date of the merger or
consolidation, no stockholder who has demanded appraisal rights as provided
in subsection (d) of this section shall be entitled to vote such stock for
any purpose or to receive payment of dividends or other distributions on
the stock (except dividends or other distributions payable to stockholders
of record at a date which is prior to the effective date of the merger or
consolidation); provided, however, that if no petition for an appraisal
shall be filed within the time provided in subsection (e) of this section,
or if such stockholder shall deliver to the surviving or resulting
corporation a written withdrawal of such stockholder's demand for an
appraisal and an acceptance of the merger or consolidation, either within
60 days after the effective date of the merger or consolidation as provided
in subsection (e) of this section or thereafter with the written approval
of the corporation, then the right of such stockholder to an appraisal
shall cease. Notwithstanding the foregoing, no appraisal proceeding in the
Court of Chancery shall be dismissed as to any stockholder without the
approval of the Court, and such approval may be conditioned upon such terms
as the Court deems just.

            (l) The shares of the surviving or resulting corporation to
which the shares of such objecting stockholders would have been converted
had they assented to the merger or consolidation shall have the status of
authorized and unissued shares of the surviving or resulting corporation.
(Last amended by Ch. 339 L. '98, eff. 7-1-98.)





                            [FORM OF PROXY CARD]


                                                             PRELIMINARY COPY

                          US AIRWAYS GROUP, INC.
                            2345 CRYSTAL DRIVE
                         ARLINGTON, VIRGINIA 22227

                                   PROXY

        THIS PROXY IS SOLICITED ON BEHALF OF THE BOARD OF DIRECTORS
                  FOR THE SPECIAL MEETING OF STOCKHOLDERS
                      TO BE HELD ON SEPTEMBER , 2000

      The undersigned hereby appoints Jennifer C. McGarey and Lawrence M.
Nagin, and each of them, proxies (each with power of substitution) of the
undersigned to attend the above special meeting of stockholders of US
Airways Group, Inc. at 9:30 a.m., local time, on September , 2000 at , and
any adjournment or postponement thereof (the "Special Meeting"), and
thereat to vote all shares of stock held by the undersigned, as specified
on the reverse side, and on any other matters that may properly come before
said meeting.

      For those participants who may hold shares in the US Airways, Inc.
Employee Stock Ownership Plan, the US Airways, Inc. Employee Savings Plan,
the US Airways, Inc. 401 (k) Savings Plan or the Supplemental Retirement
Plan of Piedmont Aviation, Inc. (collectively, the "Plans"), please fill in
and sign this card and mail it in time to be received no later than
[September ____], 2000, in order to be voted in a timely manner by the
administrator of the Plans, Fidelity Management Trust Company (the
"Administrator"). After [September______], 2000, the instructions cannot be
revoked and, in accordance with the Plans, you may not vote these shares in
person at the Special Meeting. The Administrator is authorized to vote the
Plan shares for which instructions have been given upon any other matters
that may properly come before the meeting. [CT Corporation] will tally the
vote on behalf of the Administrator

      THIS PROXY, WHEN PROPERLY EXECUTED, WILL BE VOTED IN THE MANNER
DIRECTED HEREIN BY THE UNDERSIGNED STOCKHOLDER. IN ADDITION, UPON
APPROPRIATE MOTION, THIS PROXY, WHEN PROPERLY EXECUTED, WILL BE VOTED IN
FAVOR OF ANY ADJOURNMENT OF THE SPECIAL MEETING FOR THE PURPOSE OF
SOLICITING ADDITIONAL PROXIES IN ORDER TO APPROVE THE AGREEMENT AND PLAN OF
MERGER, DATED AS OF MAY 23, 2000, AMONG US AIRWAYS GROUP, INC., UAL
CORPORATION AND YELLOW JACKET ACQUISITION CORP. IF NO DIRECTION IS GIVEN,
THIS PROXY WILL BE VOTED FOR THE ADOPTION OF THE AGREEMENT AND PLAN OF
MERGER IN ACCORDANCE WITH THE RECOMMENDATION OF THE BOARD OF DIRECTORS OF
US AIRWAYS GROUP, INC. THE PROXIES CANNOT VOTE YOUR SHARES UNLESS YOU SIGN
AND RETURN THIS CARD.


      (CONTINUED, AND TO BE SIGNED AND DATED, ON REVERSE SIDE)


[X] Please mark your vote as in this example.

THE BOARD OF DIRECTORS OF US AIRWAYS RECOMMENDS A VOTE FOR PROPOSAL 1.

1.    To adopt the Agreement and Plan of Merger, dated as of May 23, 2000,
      among US Airways Group, Inc., UAL Corporation and Yellow Jacket
      Acquisition Corp., as described in the accompanying proxy statement.

      [   ] FOR    [   ] AGAINST    [   ] ABSTAIN

      Please sign and date this proxy and return it in the enclosed return
envelope, whether or not you expect to attend the Special Meeting. You may
also vote in person if you do attend.


                                        Date ________________________________

                                        _____________________________________

                                        _____________________________________
                                                    Signature(s)

Note: Please sign exactly as name appears hereon. If shares are held as
joint tenants, both joint tenants should sign. Attorneys-in-fact,
executors, administrators, trustees, guardians, corporate officers or
others signing in a representative capacity should indicate the capacity in
which they are signing.





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