SECURITIES AND EXCHANGE COMMISSION
                   Washington, D.C. 20549

                       _______________

                          FORM 8-K

                       CURRENT REPORT

           PURSUANT TO SECTION 13 or 15(d) OF THE
               SECURITIES EXCHANGE ACT OF 1934



Date of report (Date of earliest event reported):  March 19,
                            2004

           Atlantic Coast Airlines Holdings, Inc.
     (Exact Name of Registrant as Specified in Charter)



              Delaware      0-21976     13-3621051
              (State or   (Commission      (IRS
                Other         File       Employer
            Jurisdiction    Number)    Identification No.)
                 of
            Incorporation)


   45200 Business Court, Dulles, VA                  20166
   (Address of Principal Executive Offices)     (Zip Code)


 Registrant's telephone number, including area code:
                          (703) 650-6000


                             N/A
    (Former Name or Former Address, if Changed Since Last
                           Report)

Item 9.   REGULATION FD DISCLOSURE

On  March  19, 2004, Atlantic Coast Airlines Holdings,  Inc.
issued a press release announcing that it has extended until
April  19,  2004 the date by which the initial purchaser  of
Atlantic  Coast  Airlines Holdings,  Inc.'s  6%  Convertible
Notes  must exercise its option to purchase additional notes
from  Atlantic Coast Airlines Holdings, Inc.  A copy of  the
press  release  is attached as Exhibit 99  to  this  Current
Report on Form 8-K and is incorporated herein by reference.




                          SIGNATURE

Pursuant to the requirements of the Securities Exchange  Act
of 1934, the Registrant has caused this current report to be
signed  on  its  behalf  by  the undersigned  hereunto  duly
authorized.

                              ATLANTIC COAST AIRLINES
                              HOLDINGS, INC.




Date:  March 19, 2004           By:/S/ David W. Asai
                              	David W. Asai
                              	Vice President and Chief
                              	Accounting Officer