Prospectus Supplement Filed pursuant to
Rule 424(b)(3)
May 26, 1999 SEC File Number 333-35429
(TO PROSPECTUS DATED DECEMBER 1, 1997)
The Prospectus dated December 1, 1997 (the "Prospectus") relating to
the resale from time to time by the holders (the "Selling
Securityholders") of up to $57,500,000 aggregate principal amount of
7% Convertible Subordinated Notes due 2004 (the "Notes") of Atlantic
Coast Airlines Holdings, Inc., a Delaware corporation (the "Company"),
and the resale of shares of common stock, par value $.02 per share
(the "Common Stock") of the Company issuable upon conversion thereof
(the "Conversion Shares") is hereby amended as follows:
The following entity is hereby named as a Selling Securityholder
as contemplated on page 30 of the Prospectus:
Principal Amount Percent of Total
Selling Securityholder of Notes Owned Outstanding Notes+
University of Rochester $18,000 *
_______________________
+ Percentage is based on original amount outstanding.
* Less than one percent.
