Document:

<Page>

                                                                EXHIBIT 10.2(a)

                          FIRST AMENDMENT TO CODE SHARE
                          AND REVENUE SHARING AGREEMENT

      THIS FIRST AMENDMENT TO CODE SHARE AND REVENUE SHARING AGREEMENT
("Amendment") is made to be effective as of December 24, 2001 (the "Effective
Date"), by and between AMERICA WEST AIRLINES, INC., a Delaware corporation
("AWA"), and CHAUTAUQUA AIRLINES, INC., a New York corporation ("CAI").

      RECITALS:

            A. AWA and CAI entered into that certain Code Share and Revenue
Sharing Agreement, dated to be effective March 20, 2001 (the "Code Share
Agreement"). All capitalized terms used herein, but not defined herein, have the
meanings given to such terms in the Code Share Agreement.

            B. CAI and AWA desire to amend the Code Share Agreement to alter
the delivery dates of the initial Fleet, to provide CAI with the opportunity
to divert certain Aircraft to other non-AWA uses and to alter the Fleet
reduction provisions, in each case as provided herein, and to temporarily
amend the expense reimbursement model.

      NOW, THEREFORE, in consideration of the promises, covenants,
representations and warranties hereinafter set forth, and for other good and
valuable consideration, the receipt and sufficiency of which are hereby
acknowledged, and intending to be legally bound, AWA and CAI agree as set forth
below.

      AGREEMENTS:

1.          AMENDMENTS. The Code Share Agreement is amended as follows:

      1.1 Section 1.2.1 of the Code Share Agreement is deleted in its entirety
and replaced with the following:

            1.2.1 INITIAL ERJ FLEET. CAI shall provide the Flight Services using
      EMB 145 LR's with AE 3007 A1-P engines (collectively, the "Fleet" and
      individually, each an "Aircraft"). One Aircraft shall be placed into
      Flight Services by CAI during each of the following calendar months:
      August 2001, September 2001, November 2001, January 2002, April 2002,
      May 2002, July 2002, August 2002, September 2002, October 2002 and
      November 2002, for a total of 12 Aircraft (collectively, the "Firm
      Aircraft"). In consideration for CAI altering the delivery schedule as
      originally set forth in this Agreement, AWA shall pay to CAI the sum of
      [*] in two equal installments of [*], each, on or before each of the
      following dates: January 5, 2002 and February 5, 2002, by wire transfer
      pursuant to wiring instructions provided to AWA by CAI. CAI shall
      provide AWA with at least 90 days' prior written notice of the calendar
      week in which each of the Firm Aircraft will be placed into Flight
      Services under this Agreement (each a "Scheduled Delivery Week"). If an
      Aircraft is not a

----------
* Confidential
Certain portions of this exhibit have been omitted pursuant to a request for
confidential treatment under Rule 406 of the Securities Act of 1933. The
omitted materials have been filed separately with the Securities and Exchange
Commission.

<Page>

      "new" Aircraft from the manufacturer, then the Aircraft shall not be older
      than 24 months from the new manufacturer delivery and the interior and
      exterior shall be decorated, painted and reconfigured to AWA
      specifications at CAI's sole cost and expense prior to the delivery date.

            CAI, by providing AWA with at least 12 months prior written notice
      (the "Diversion Notice"), shall have the right, in CAI's sole
      discretion, to cause all, but not less than all, of the Aircraft to be
      diverted to other non-AWA uses. If CAI issues a Diversion Notice to
      divert the Aircraft to other non-AWA uses, then: (i) from and after the
      date of the Diversion Notice, the Aircraft not yet placed into Flight
      Service pursuant to SECTION 1.2.1 shall not be put into Flight Services
      for AWA, shall not be considered part of the Fleet, shall not be
      considered an Aircraft under this Agreement and neither CAI nor AWA
      shall have any further right, liability, obligation or duty under this
      Agreement in regard to such diverted Aircraft; and (ii) any Aircraft in
      the Fleet as of the date of the Diversion Notice shall be removed from
      Flight Services over up to 3 month period commencing no earlier than
      the 12th calendar month after the date of the Diversion Notice. Upon
      the removal of the last Aircraft from Flight Services this Agreement
      shall automatically terminate and neither AWA nor CAI shall have any
      further right, liability or obligation under this Agreement, except for
      the payment of any sums accrued under this Agreement to the date of
      such termination, the indemnity obligations set forth in 9 and any
      other obligations that expressly survive the termination of this
      Agreement. If CAI does not divert the Aircraft as provided herein, then
      the Aircraft shall be subject to the terms and conditions of this
      Agreement on the applicable in service date.

            In the event that CAI obtains short-term lease expense relief on
      behalf of AWA for the Fleet, it being understood and agreed that CAI
      has no obligation to seek or to obtain such relief, the Exhibit "A"
      attached hereto, shall be revised to take into consideration the lease
      expense relief obtained by CAI. Any lease expense relief obtained by
      CAI with respect to the Fleet shall be passed through to AWA.

      1.2 Section 1.2.3 of the Code Share Agreement is revised by adding the
following new paragraph to the end of the Section:

            Notwithstanding anything in this Section 1.2.3 to the contrary,
      AWA shall have a one-time right to eliminate from the Fleet either or
      both of Aircraft to be delivered in October 2002 and November 2002 upon
      the following terms and conditions (the "2002 Elimination"): (i) AWA
      shall provide CAI with written notice of its election to exercise the
      2002 Elimination on or before 5:00 p.m., Phoenix, Arizona time, on May
      15, 2002 designating which of such Aircraft AWA elects to eliminate;
      and (ii) AWA shall pay to CAI a cancellation fee of [*] to be
      eliminated on or before 5:00 p.m., Phoenix, Arizona time, on July 31,
      2002, by wire transfer pursuant to wiring instructions provided by CAI
      to AWA. If AWA exercises the 2002 Elimination with respect to either or
      both of the Aircraft to be delivered in October 2002 and November 2002,
      then

----------
* Confidential

                                       2
<Page>

      AWA shall have no further right to exercise any of the Early
Elimination pursuant to the preceding paragraph.

      1.3 A new section 14.11 of the Code Share Agreement shall be added as
follows:

            14.11 In the event AWA exercises its right to reduce the fleet
      below the contemplated 12 unit level (whether pursuant to the 2002
      Elimination, the Early Eliminations right or otherwise) or CAI issues a
      Diversion Notice to divert the Aircraft under Section 1.2.1 hereof then
      the Warrant Issuance Agreement, dated March 20, 2001, between CAI and
      AWA, as of the date of any notice exercising any such rights, shall
      become null and void.

      1.4 Exhibit A to the Code Share Agreement is amended to provide that
for the period commencing on January 1, 2002 and ending on December 31, 2002,
inclusive, (the "Reduction Period"), the "Per Block Hour-Operations
Expenses" shall be reduced [*] and the "Per Aircraft Per Day-Depreciation"
shall be reduced by [*]. Upon the expiration of the Reduction Period, Exhibit
A shall be reinstated in its entirety as originally attached to the Code
Share Agreement. In the event that the Code Share Agreement is terminated
prior to the Expiration Date other than as a result of a breach of the Code
Share Agreement by CAI, AWA shall pay to CAI on the effective date of such
termination the difference between (a) the aggregate amount that would have
been payable by AWA during the Reduction Period if Exhibit A was not amended
as provided herein and (b) the aggregate amount payable by AWA during the
Reduction Period as a result of the amendment of Exhibit A as provided herein.

2.          COUNTERPARTS. This Amendment may be executed in counterparts, all of
which shall be deemed to be one and the same document. This Amendment may be
executed by facsimile copies.

3.          EFFECT. Except as set forth in this Amendment, the Code Share
Agreement remains in full force and effect as originally executed.

      AWA:                                AMERICA WEST AIRLINES, INC.

                                          By: /s/ Andrew Nocella
                                             ---------------------------------
                                                Its: Vice President, Planning
                                                    --------------------------

      CAI:                                CHAUTAUQUA AIRLINES, INC.

                                          By: /s/ Bryan Bedford
                                             ---------------------------------
                                                Its: President
                                                    --------------------------

----------
* Confidential
                                       3<Page>

                                                                    EXHIBIT 10.3

                                    AGREEMENT

      THIS AMENDMENT (the "Agreement") is made and entered into as of March 20,
2001 (the "Effective Date"), by and between AMERICA WEST AIRLINES, INC., a
Delaware corporation ("AWA"), and CHAUTAUQUA AIRLINES, INC., a Nevada
corporation ("CAI").

      RECITALS:

            A. AWA and CAI entered into that certain Code Share and Revenue
Sharing Agreement, dated March 20, 2001 (the "Code Share Agreement"). All
capitalized terms used in this Agreement, but not defined herein, shall have the
meaning given to such terms in the Code Share Agreement.

            B. The Code Share Agreement provides for the reimbursement of CAI
for certain Actual Costs and Guaranteed Costs and revenue sharing based on a
percentage of Segment Revenue (the "CAI Compensation Structure").

            C. There is currently a grievance pending alleging that because
of the structure of the compensation arrangement contained in the [Code Share
and Revenue Sharing] Agreement, dated July 15, 1998, between AWA and Mesa
Airlines, Inc., as amended the "Mesa Agreement"), Mesa Airlines, Inc.'s
operation under the Mesa Agreement constitutes impermissible subcontracted
revenue flying in violation of the Collective Bargaining Agreement, dated May
4, 1995, between the Air Line Pilots Association ("ALPA") and AWA (including
any amended version thereof, the "CBA").  The CAI Compensation Structure is
identical in all material respects to the compensation structure contained in
the Mesa Agreement (the "Mesa Compensation Structure").

            D. AWA believes that the Mesa Compensation Structure, as well as
the CAI Compensation Structure, do not violate the terms of the CBA and that
the pending grievance is without merit.

            E. AWA and CAI desire to provide for the continuance of the Code
Share Agreement in the event the current grievance involving the
Mesa Agreement or any other grievance or claim, now or hereafter initiated,
claiming the Mesa Compensation Structure or the CAI Compensation Structure
violates the CBA, the Railway Labor Act, or other law, is successful and an
arbitrator, System Board of Adjustment, court or other arbiter or adjudicator
rules that the Mesa Compensation Structure or the CAI Compensation Structure
violates the CBA, the Railway Labor Act, or other law.

      NOW, THEREFORE, in consideration of the recitals and for other good and
valuable consideration, the receipt and sufficiency of which is hereby
acknowledged, AWA and CAI agree as follows:

----------
      Certain portion of this exhibit have been omitted pursuant to a request
for confidential treatment under Rule 406 of the Securities Act of 1933.
The omitted materials have been filed separately with the Securities and
Exchange Commission.

<Page>

      AGREEMENTS:

1.          RESTRUCTURE. If an arbitrator, System Board of Adjustment, court or
other arbiter or adjudicator ("Adjudicator") determines that the Mesa
Compensation Structure or the CAI Compensation Structure constitutes
impermissible subcontracted revenue flying under Paragraph 1, Section (c), of
the CBA or any other provision of the CBA, or otherwise violates the CBA, the
Railway Labor Act or other law, then AWA and CAI, upon CAI's receipt of
written notice from AWA (the "Restructure Notice"), shall restructure Section
6 of the Code Share Agreement to convert the CAI Compensation Structure to a
prorate type code share arrangement (a "Prorate Arrangement").  [*]

2.          EFFECT ON BALANCE OF CONTRACT. Any amendment to the Code Share
Agreement to incorporate the Prorate Arrangement pursuant to Paragraph 1 above
shall not affect any of the other duties, obligations, rights, liabilities,
terms, covenants, conditions, promises and agreements contained in the Code
Share Agreement which shall remain in full force and effect as set forth in the
Code Share Agreement.

----------
* Confidential
                                       2
<Page>

3.          MISCELLANEOUS. This Agreement shall remain in full force and
effect during the entire Term of the Code Share Agreement and shall apply to
any and all grievances or other claims alleging the Mesa Compensation Structure
or CAI Compensation Structure violates the CBA, the Railway Labor Act or other
law. Until AWA issues a Restructure Notice, this Agreement shall not be used
to interpret or clarify, and shall not be deemed to amend, modify or change,
any of the terms, covenants, conditions, promises or agreements contained
in the Code Share Agreement.

                                          AMERICA WEST AIRLINES, INC.

                                          By: /s/ William A. Franke
                                             ---------------------------
                                          Name: William A. Franke
                                               -------------------------
                                          Title: Chairman and CEO
                                                ------------------------

                                          CHAUTAUQUA AIRLINES, INC.

                                          By: /s/ Bryan Bedford
                                             ---------------------------
                                          Name: Bryan Bedford
                                               -------------------------
                                          Title: President
                                                ------------------------

                                       3

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00039-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00039-of-00352.parquet"}]]