Exhibit 10.6(a)




June 4, 2002

Atlantic Coast Airlines
45200 Business Court, Suite 100
Dulles, Virginia  20166


                       Re:    United Contract No. 152118
                              Title:  Restated United
                              Express Agreement among
                              United Air Lines, Inc.
                              Atlantic Coast Airlines and
                              Atlantic Coast Airlines
                              Holdings, Inc.
                              Dated: November 22nd, 2000
                              (The "Agreement")

Gentlemen:

WITNESSETH:

WHEREAS,  Atlantic  Coast Airlines ("ACA")  and  United  Air
Lines, Inc. ("United") desire to further amend provisions of
Article  IV.E  of  the  Agreement relating  to  Contractor's
authority to operate regional jet aircraft in United Express
service;

NOW,  THEREFORE, in consideration of the foregoing premises,
when  fully executed, this letter will reflect the agreement
between ACA and United that the Agreement will be amended as
set forth below.  This letter amendment will be effective as
of June 4, 2002.

1.    Article  IV.E.1 of the Agreement is  deleted  and  the
following is inserted in lieu thereof:

     "Contractor is authorized to operate up to 114 Canadair
regional jet aircraft (50-seat capacity or less) for  United
Express  service under the terms of this Agreement, provided
such  aircraft  are  delivered not later than  December  31,
2003.   Contractor is authorized to operate a total  of  121
Canadair  regional jet aircraft (50-seat capacity  or  less)
for   United  Express  service  under  the  terms  of   this
Agreement,  provided such aircraft are delivered  not  later
than April 30, 2004.  The deployment of any and all regional
jet  aircraft  operated  by Contractor  for  United  Express
service,  or  operated with United Express livery,  must  be
approved by United on a city pair basis.  Contractor  agrees
that  all  FD328Jets  will be removed  from  United  Express
service  no  later  than December 31,  2002,  and  that  all
turboprop  aircraft  will be removed  (the  "Removal")  from
United  Express service no later than April 30,  2004.   The
exact date of each FD328Jet or turboprop removal will be  at
Contractor's discretion, but Contractor will provide  United
at  least  60  days  prior  notice of  each  such  scheduled
removal.   In  the  event  that any scheduled  regional  jet
deliveries  are  delayed for reasons beyond the  control  of
Contractor,  the  turboprop  removal  may  be   delayed   by
Contractor past April 30, 2004, to coincide with the delayed
in-service    schedule   of   regional   jets.    Contractor
acknowledges  that  certain cost reductions  in  its  United
Express operations will become apparent during and once  all
turboprops  have  been  removed  from  its  United   Express
service.   Within  60 days of the Removal,  Contractor  will
enter  into  good  faith discussions with  United  aimed  at
reducing  Costs  per Departure to reflect fully  these  cost
reductions."

2.    In  Article  IV.E.2  of the Agreement  is  amended  by
replacing  "above ***" with "above ***" and  replacing  "the
initial  ***"  with  "the initial ***", and  by  adding  the
following  sentence  to  the end of  Article  IV.E.2:   "For
purposes  of  clarity,  as of June 3,  2002,  Contractor  is
authorized  to operate 121 regional jets out of a  total  of
236  regional jets currently allocated for operation in  the
fleets of all United Express carriers."

The  terms set forth above are deemed to be incorporated  in
and  made  a  part  of the Agreement.  All other  terms  and
conditions of the Agreement, as amended, will remain in full
force and effect.

If  this letter agreement conforms to your understanding and
agreement,  please  sign  all  three  copies  in  the  space
provided below and return two copies to United.


                         UNITED AIR LINES, INC.

                         /s/ Christopher Rado

                         Christopher Rado
                         Director, United Express


Read, Accepted and Agreed to
This 4th Day of June, 2002

ATLANTIC COAST AIRLINES

/s/ Richard J. Surratt

Richard J. Surratt
Executive Vice President & CFO