Document:

Exhibit 10.12
                                                    -------------

                         NINTH AMENDMENT
                         UAL CORPORATION
                  EMPLOYEE STOCK OWNERSHIP PLAN
                 (Effective as of July 12, 1994)

          By virtue and in exercise of the amending power

reserved to UAL Corporation (the "Company") under Section 13.1(a)

of the UAL Corporation Employee Stock Ownership Plan (effective

as of July 12, 1994) (the "Plan"), which amending power

thereunder is subject to the approval of the Air Line Pilots

Association International ("ALPA") and the International

Association of Machinists and Aerospace Workers (the "IAM"), the

Company hereby amends the Plan, subject to the approval of ALPA

and the IAM, as follows, effective April 1, 2000.

          1.   The third and fourth paragraphs of the Preamble to

the Plan are amended to read as follows:

          "Effective April 1, 2000, the Plan is an employee stock
          ownership plan which is intended to be qualified under
          Code Sections 401(a) and 4975(e)(7).  The Trust holding
          the assets of the Trust Fund is intended to be exempt
          from taxation under Code Section 501(a).

          Effective April 1, 2000, the Plan consists of two
          portions, a `leveraged' portion (Part A) and an
          `unleveraged' portion (Part B).  Unless the context
          otherwise requires or unless specifically provided, all
          provisions of this Plan document shall apply to both
          part A and Part B."

          2.   The last three sentences of Section 3.1(a)(i),

which refer to stock bonus and money purchase pension plan

components of the Plan, are hereby deleted.

          3.   The last sentence of Section 3.1(b)(ii) is amended

to read as follows:

          "Such contributions may not be used to repay
          Acquisition Loan indebtedness."

          4.   Section 3.1(b)(iii) is hereby deleted from the Plan.

          5.   The following new Section 10.1(c) is hereby added

to the Plan:

               "(c) Cash Dividends On or After April 1, 2000.

               (i) Cash Dividends Before Completion of Year 2000
          Allocations. Notwithstanding subsection (b), any cash
          dividends with respect to shares of Class 1 Non-Voting
          Preferred Stock with a dividend record date after the
          completion of the allocations under Section 5.4 for the
          year 2000 shall be allocated to the Participants' ESOP
          Cash Accounts, pro-rata, according to the number of
          shares of such Preferred Stock held in such
          Participants' ESOP Stock Accounts on the dividend
          record date. The amount so allocated to each
          Participants' ESOP Cash Account shall be distributed to
          such Participant as soon as administratively feasible
          following such allocation, but in no event later than
          ninety (90) days after the close of the Plan Year in
          which the dividend is paid. (For reference purposes
          only, the allocations under Section 5.4 for the year
          2000 are expected to be completed in March, 2001.)

              (ii) Special Rule for Cash Dividends Before
          Completion of Year 2000 Allocations.  Notwithstanding
          subsection (b), any cash dividend paid with respect to
          shares of Class 1 Non-Voting Preferred Stock with a
          dividend record date within the period commencing April
          1, 2000 and ending when the allocations under Section
          5.4 for the year 2000 are completed shall be applied as
          set forth in this clause (ii).

                   (x). Any such dividends with respect to
               shares of Class 1 Non-Voting Preferred Stock for
               which the allocation under Section 5.4 has been
               completed as of the dividend record date shall be
               allocated to the Participants' ESOP Cash Accounts
               pro rata, according to the number of such shares
               held in the Participants' ESOP Stock Accounts on
               the dividend record date.  The amount so credited
               to each Participants' ESOP Cash Account shall be
               distributed to the Participant as soon as
               administratively feasible, but in no event later
               than ninety (90) days after the close of the Plan
               Year in which the dividend is paid.

                   (y)  Any such dividends paid with respect to
               shares of Class 1 Non-Voting Preferred Stock for
               which the allocation under Section 5.4 has not
               been completed as of the dividend record date
               shall be held by the Trustee.  As soon as
               administratively feasible following the allocation
               of such Class 1 Non-Voting Preferred Stock, such
               dividends shall be allocated pro rata to the
               Participants according to the number of such
               shares of Class 1 Non-Voting Preferred Stock
               allocated to such Participants.  Following such
               allocation, the dividends shall be distributed to
               such Participants as soon as administratively
               feasible, but in no event later than ninety (90)
               days after the close of the Plan Year in which the
               dividend is paid."

          6.   The following is hereby added to the end of
               Section 10.2:

               "Notwithstanding the preceding sentence, cash
               dividends on Company Stock (excluding Class 1 Non-
               Voting Preferred Stock) with a record date on or
               after April 1, 2000 shall be applied as set forth
               in the remaining provisions of this Section 10.2.
               Such dividends shall be allocated to the
               Participants' ESOP Cash Accounts pro-rata,
               according to the number of shares of such Company
               Stock held in such Accounts on the dividend record
               date.  Such dividends shall be distributed to the
               Participants as soon as administratively feasible,
               but no later than ninety (90) days after the close
               of the Plan Year in which the dividend is paid."

          7.   The following is hereby added to the end of
               Section 10.3:

               "This Section 10.3 shall cease to be effective on
               April 1, 2000."

          8.   The following is hereby added to the end of
               Section 11.12:

               "Notwithstanding the foregoing, interest earned on
               the investment of dividends paid on or after April
               1, 2000 pending distribution to employees
               shall be used by the Trustee to partially offset
               the reasonable expenses of
               administering the Plan and Trust."

          IN WITNESS WHEREOF, the Company has caused this Ninth

Amendment to be executed on October 29, 1999.

                                   UAL CORPORATION

                                   /s/ Douglas A. Hacker
                                   ---------------------
                                   Executive Vice President & Chief
                                   Financial Officer

                                   APPROVED BY:

                                   AIR LINE PILOTS ASSOCIATION,
                                   INTERNATIONAL

                                   /s/ Michael Glawe
                                   -----------------

                                   /s/ Duane Woerth
                                   ----------------

                                   INTERNATIONAL ASSOCIATION
                                   OF MACHINISTS AND
                                   AEROSPACE WORKERS

                                   /s/ S.K. Canale
                                   ---------------

                                   /s/ Kenneth W. Thiede
                                   ---------------------Exhibit 10.21
                                                    -------------

                        SEVENTH AMENDMENT
                         UAL CORPORATION
                        SUPPLEMENTAL ESOP
                 (Effective as of July 12, 1994)

          By virtue and in exercise of the amending power

reserved to UAL Corporation (the "Company") under Section 13.1(a)

of the UAL Corporation Supplemental ESOP (effective as of July

12, 1994) (the "Plan"), which amending power thereunder is

subject to the approval of the Air Line Pilots Association

International ("ALPA") and the International Association of

Machinists and Aerospace Workers (the "IAM"), the Company hereby

amends the Plan, subject to the approval of ALPA and the IAM, as

follows, effective January 1, 1998.

          1.   Section 1.1(b) of the Plan is amended by adding

the following to the end of the section:

      "The allocations to the Management and Salaried Employee

     Group shall take into account the agreement of the Company

     and the IAM concerning Fleet Technical Instructors, Fleet

     Technical Specialists, Program Support Coordinators and

     Program Support Specialists.  Through 1997, these employees

     participated in the Plan (under its generally-applicable

     provisions) as members of the Management and Salaried

     Employee Group.  In each of the years 1998, 1999 and 2000

     they will continue to participate as members of the

     Management and Salaried Employee Group, notwithstanding the

     fact that the IAM represents them starting in 1998."

          2.   Section 2.2(a) is amended by adding the following

to the end of the section:

     "For Plan Years beginning on or after January 1, 1998,

     except as specified in Section 2.3(b) for actual dividends

     paid with respect to pre-1998 participation, the Voting

     Preferred Stock issued for the Fleet Technical Specialists,

     Fleet Technical Instructors, Program Support Coordinators

     and Program Support Specialists shall be Class M,

     notwithstanding the membership of such Participants in the

     Management and Salaried Employee Group.  Accordingly, the

     maximum number of Class M Voting shares shall be increased,

     and the maximum number of Class S Voting shares shall be

     correspondingly decreased, by the Convertible Shares issued

     for the Fleet Technical Specialists, Fleet Technical

     Instructors, Program Support Coordinators and Program

     Support Specialists for Plan Years commencing on or after

     January 1, 1998, excluding the Convertible Shares issued for

     dividends actually paid to their Accounts with respect to

     Class 1 Non-Voting Preferred Stock which had been allocated

     to their Accounts in the ESOP for Plan Years commencing

     before January 1, 1998."

          3.   Section 2.3(b) is amended by adding the following

to the end of the section:

     "For Plan Years beginning on or after January 1, 1998,

     except as specified below, the appropriate class of Voting

     Preferred Stock for the Fleet Technical Specialists, Fleet

     Technical Instructors, Program Support Coordinators and

     Program Support Specialists shall be Class M,

     notwithstanding the membership of such Participants in the

     Management and Salaried Employee Group.  Accordingly, except

     as specified below, all contributions and allocations of

     Voting Preferred Stock for such Participants for 1998 and

     subsequent years shall be of Class M.  However, with respect

     to shares of Voting Preferred Stock contributed or allocated

     on account of dividends actually paid with respect to shares

     of Class 1 Non-Voting Preferred Stock which had been

     allocated to their Accounts in the ESOP for Plan Years

     commencing before January 1, 1998, the appropriate class of

     Voting Preferred Stock shall be Class S."

          4.   Section 2.4(g) is amended by adding the following

to the end of the section:

     "Pursuant to an agreement between the Company and the IAM,

     the Fleet Technical Instructors, Fleet Technical

     Specialists, Program Support Coordinators and Program

     Support Specialists will continue to participate in the Plan

     as members of the Management and Salaried Employee Group.

     The Accounts maintained for such Participants for 1998 and

     subsequent years shall reflect their membership in the IAM

     for such years.  The shares allocated to such Participants

     for 1998 and subsequent years shall be made with the shares

     reserved for allocation to the members of the Management and

     Salaried Employee Group, rather than with the shares

     reserved for allocation to the members of the IAM Employee

     Group."

          IN WITNESS WHEREOF, the Company has caused this Seventh

Amendment to be executed on May 19, 1999.

                                   UAL CORPORATION

                                   /s/ Douglas A. Hacker
                                   ---------------------
                                   Senior Vice President & Chief
                                   Financial Officer

                                   APPROVED BY:

                                   AIR LINE PILOTS ASSOCIATION,
                                   INTERNATIONAL

                                   /s/ Michael Glawe
                                   -----------------

                                   /s/ Duane Woerth
                                   ----------------

                                   INTERNATIONAL ASSOCIATION
                                   OF MACHINISTS AND
                                   AEROSPACE WORKERS

                                   /s/ Kenneth W. Thiede
                                   ---------------------

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