Document:

<PAGE>

          CERTAIN PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED
        SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT
                    TO A REQUEST FOR CONFIDENTIAL TREATMENT

                                                                   Exhibit 10.29

                          Supplemental Agreement No. 7

                                       to

                           Purchase Agreement No. 2191

                                     between

                               The Boeing Company

                                       and

                            COPA Holdings, S.A., Inc.

                      Relating to Boeing Model 737 Aircraft

            THIS SUPPLEMENTAL AGREEMENT entered into as of December 9th, 2004,
by and between THE BOEING COMPANY, a Delaware corporation with its principal
office in Seattle, Washington, (Boeing) and COPA HOLDINGS, S.A., INC.
(Customer);

            WHEREAS, the parties hereto entered into Purchase Agreement No. 2191
dated November 25, 1998 (the Agreement), as amended and supplemented, relating
to Boeing Model 737-700 and 737-800 aircraft (the Aircraft); and

            WHEREAS, Customer has requested and Boeing has agreed to accelerate
one 737-700 Aircraft with a scheduled delivery month of June 2006 to May 2006;
and

            WHEREAS, Boeing and Buyer have mutually agreed to amend the
Agreement to incorporate the effect of these and certain other changes;

NOW THEREFORE, in consideration of the mutual covenants herein contained, the
parties agree to amend the Agreement as follows:

1.    Table of Contents, Tables and Exhibits:

      1.1.  Remove and replace, in its entirety the "Table of Contents", with
            the "Table of Contents" attached hereto and hereby made a part of
            the Agreement, to reflect the changes made by this Supplemental
            Agreement.

      1.2.  Table 1-3 entitled "Aircraft Information Table for Model 737-7V3
            Aircraft" is replaced in its entirety with revised Table 1-3
            entitled "Aircraft Information Table for Model 737-7V3 Aircraft" to
            reflect a revised schedule delivery month of May 2006 for the
            737-7V3 Aircraft with manufacture serial number 34535.

                                     Page 1
<PAGE>

2.    Letter Agreements: Remove and replace Letter Agreement No.
      6-1162-LAJ-874R1 entitled "**Material Redacted**" with Letter Agreement
      No. 6-1162-LAJ-874R2 entitled "**Material Redacted**" attached hereto and
      hereby made a part of the Agreement.

The Purchase Agreement will be deemed to be supplemented to the extent herein
provided as of the date hereof and as so supplemented will continue in full
force and effect.

                                       2
<PAGE>

                                TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                      SA
ARTICLES                                                            NUMBER
----------------------------------------------------------------    ------
<S>                                                                 <C>
   1.      Quantity, Model and Description                           SA 3
   2.      Delivery Schedule
   3.      Price
   4.      Payment                                                   SA 3
   5.      Miscellaneous

TABLE

   1-1     Aircraft Information Table for Model 737-7V3 Aircraft     SA 4
   1-2     Aircraft Information Table for Model 737-8V3 Aircraft     SA 5
   1-3     Aircraft Information Table for Model 737-8V3 Aircraft     SA 6

EXHIBIT

   A-1     Aircraft Configuration for Model 737-7V3 Aircraft         SA 3
   A-2     Aircraft Configuration for Model 737-8V3 Aircraft         SA 3

   B.      Aircraft Delivery Requirements and Responsibilities       SA 3

SUPPLEMENTAL EXHIBITS

   BFE1.   BFE Variables                                             SA 3
   CS1.    Customer Support Variables                                SA 3
   EE1.    Engine Escalation/Engine Warranty and Patent Indemnity
   SLP1.   Service Life Policy Components

LETTER AGREEMENTS

   2191-01 Demonstration Flight Waiver
   2191-02 **Material Redacted**
   2191-03 Seller Purchased Equipment
</TABLE>

                                       i
<PAGE>

RESTRICTED LETTER AGREEMENTS

<TABLE>
<S>                  <C>
6-1162-DAN-0123      Performance Guarantees
6-1162-DAN-0124      **Material Redacted**
6-1162-DAN-0155      **Material Redacted**
6-1162-DAN-0156      Year 2000 Ready Software, Hardware and Firmware
6-1162-DAN-0157      Miscellaneous Matters
6-1162-MJB-0017      **Material Redacted**
6-1162-MJB-0030      **Material Redacted**
6-1162-LAJ-874R      **Material Redacted**
6-1162-LAJ-874R1     **Material Redacted**
6-1162-LAJ-874R2     **Material Redacted**
</TABLE>

<TABLE>
<CAPTION>
 SUPPLEMENTAL AGREEMENTS          DATED AS OF:
---------------------------     -----------------
<S>                             <C>
Supplemental Agreement No. 1      June 29, 2001
Supplemental Agreement No. 2    December 21, 2001
Supplemental Agreement No. 3      June 14, 2002
Supplemental Agreement No. 4    December 20, 1002
Supplemental Agreement No. 5     October 31, 2003
Supplemental Agreement No. 6    September 9, 2004
Supplemental Agreement No. 7    December __, 2004
</TABLE>

                                       ii
<PAGE>

                                    TABLE 1-3
              AIRCRAFT INFORMATION TABLE FOR MODEL 737-7V3 AIRCRAFT
           AIRCRAFT DELIVERY, DESCRIPTION, PRICE AND ADVANCE PAYMENTS

<TABLE>
<S>                    <C>                    <C>        <C>          <C>                      <C>                          <C>
AIRFRAME MODEL/MTGW:    737-700               154,500                 DETAIL SPECIFICATION:    D6-38808-42-I-D (10/5/2002)

ENGINE MODEL:          CFM56-7B22                                     PRICE BASE YEAR:         Jul-00

AIRFRAME PRICE:                                          $41,058,000

OPTIONAL FEATURES:                                       $ 3,011,200  AIRFRAME AND ESCALATION DATA:
                                                         -----------
SUB-TOTAL OF AIRFRAME AND FEATURES:                      $44,069,200  BASE YEAR INDEX (ECI):                                145.50

ENGINE PRICE (PER AIRCRAFT):                             $         0  BASE YEAR INDEX (ICI):                                130.30

AIRCRAFT BASIC PRICE (EXCLUDING BFE/SPE):                $44,069,200
                                                         ===========

BUYER FURNISHED EQUIPMENT (BFE) ESTIMATE:                $ 1,000,000

SELLER PURCHASED EQUIPMENT (SPE) ESTIMATE AT DELIVERY:   $ 1,700,000

REFUNDABLE DEPOSIT PER AIRCRAFT AT PROPOSAL ACCEPTANCE:  $    75,000
</TABLE>

<TABLE>
<CAPTION>
                                                      ESCALATION    ADVANCE PAYMENT PER AIRCRAFT (AMTS. DUE/MOS. PRIOR TO DELIVERY):
                          ESCALATION                 ESTIMATE ADV   ----------------------------------------------------------------
               NUMBER OF    FACTOR     MANUFACTURER  PAYMENT BASE     AT SIGNING     24 MOS.      21/18/12/9/6 MOS.      TOTAL
DELIVERY DATE  AIRCRAFT   (AIRFRAME)  SERIAL NUMBER  PRICE PER A/P        1%           4%                5%               30%
-------------  ---------  ----------  -------------  -------------  ------------   ----------     -----------------   -----------
<S>            <C>        <C>         <C>            <C>            <C>            <C>            <C>                 <C>
 May-2006         1         1.2271       34535       $  55,777,000    $  482,770   $2,231,080        $ 2,788,850      $16,733,100
 May-2006         1         1.2299       34536       $  55,901,000    $  484,010   $2,236,040        $ 2,795,050      $16,770,300
</TABLE>

<PAGE>

                               THE BOEING COMPANY
                               P.O. Box 3707
                               Seattle, WA 95124-2207

6-1162-LAJ-874R1

COPA HOLDINGS, S.A.
Apartado 1572
Avenida Justo Arosemena y Calle 39
Panama 1, Panama

**Material Redacted**

Reference:  Purchase Agreement No. 2191 (the Purchase Agreement) between The
            Boeing Company (Boeing) and COPA HOLDINGS, S.A. (Customer) relating
            to Model 737 aircraft (the Aircraft)

This Letter Agreement amends and supplements the Purchase Agreement. This Letter
Agreement supercedes and replaces in its entirety Letter Agreement
6-1162-LAJ-874R1. All terms used but not defined in this Letter Agreement have
the same meaning as in the Purchase Agreement. In consideration of the Aircraft
orders, Boeing provides the following to Customer.

1     **Material Redacted**

2.    **Material Redacted**

3.    **Material Redacted**

4.    **Material Redacted**

5.    **Material Redacted**

6.    **Material Redacted**

7.    **Material Redacted**

8.    Confidentiality. Customer understands that certain commercial and
      financial information contained in this Letter Agreement are considered by
      Boeing as confidential. Customer agrees that it will treat this Letter
      Agreement and the information contained herein as confidential and will
      not, without the prior written consent of Boeing, disclose this Letter
      Agreement or any information contained herein to any other person or
      entity.

<PAGE>

                                                                               3

ACCEPTED AND AGREED TO this

Date: December 9th , 2004

THE BOEING COMPANY

COPA HOLDINGS, S.A.<PAGE>

          CERTAIN PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED
                   SEPARATELY WITH THE SECURITIES AND EXCHANGE
           COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT

                                                                   Exhibit 10.30

                          Supplemental Agreement No. 8

                                       to

                           Purchase Agreement No. 2191

                                     between

                               The Boeing Company

                                       and

                            COPA Holdings, S.A., Inc.

                      Relating to Boeing Model 737 Aircraft

            THIS SUPPLEMENTAL AGREEMENT entered into as of April 15, 2005, by
and between THE BOEING COMPANY, a Delaware corporation with its principal office
in Seattle, Washington, (Boeing) and COPA HOLDINGS, S.A., INC. (Customer);

            WHEREAS, the parties hereto entered into Purchase Agreement No. 2191
dated November 25, 1998 (the Agreement), as amended and supplemented, relating
to Boeing Model 737-700 and 737-800 aircraft (the Aircraft); and

            WHEREAS, Customer and Boeing have come to agreement on the purchase
and sale of five 737 Aircraft with schedule delivery months of August 2007,
November 2007, May 2008, November 2008, and May 2009; and

            WHEREAS, Boeing and Buyer have mutually agreed to amend the
Agreement to incorporate the effect of these and certain other changes;

NOW THEREFORE, in consideration of the mutual covenants herein contained, the
parties agree to amend the Agreement as follows:

1.    Table of Contents, Tables and Exhibits:

      1.1.  Remove and replace, in its entirety the "Table of Contents", with
            the "Table of Contents" attached hereto and hereby made a part of
            the Agreement, to reflect the changes made by this Supplemental
            Agreement.

      1.2.  Table 1-4 entitled "Aircraft Information Table for Model 737-7V3
            Aircraft" is attached hereto to reflect the schedule delivery months
            for the 737 Aircraft with schedule delivery months of August 2007,
            November 2007, May 2008, November 2008, and May 2009.

                                     Page 1

<PAGE>

2.    Letter Agreements: Remove and replace Letter Agreement No. 6-1162-MJB-0017
      entitled "**Material Redacted**" with Letter Agreement No. 6-1162-LAJ-982
      entitled "**Material Redacted**" attached hereto and hereby made a part of
      the Agreement.

The Purchase Agreement will be deemed to be supplemented to the extent herein
provided as of the date hereof and as so supplemented will continue in full
force and effect.

                                       2

<PAGE>

                                TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                                          SA
                                                                                        NUMBER
                                                                                        ------
      ARTICLES
---------------------
<S>                    <C>                                                              <C>
         1.            Quantity, Model and Description                                   SA 3
         2.            Delivery Schedule
         3.            Price
         4.            Payment                                                           SA 3
         5.            Miscellaneous

        TABLE

         1-1           Aircraft Information Table for Model 737-7V3 Aircraft             SA 4
         1-2           Aircraft Information Table for Model 737-8V3 Aircraft             SA 5
         1-3           Aircraft Information Table for Model 737-7V3 Aircraft             SA 7
         1-4           Aircraft Information Table for Model 737-7V3 Aircraft             SA 8

       EXHIBIT

         A-1           Aircraft Configuration for Model 737-7V3 Aircraft                 SA 3
         A-2           Aircraft Configuration for Model 737-8V3 Aircraft                 SA 3

         B.            Aircraft Delivery Requirements and Responsibilities               SA 3

SUPPLEMENTAL EXHIBITS

        BFE1.          BFE Variables                                                     SA 3
        CS1.           Customer Support Variables                                        SA 3
        EE1.           Engine Escalation/Engine Warranty and Patent Indemnity
        SLP1.          Service Life Policy Components

LETTER AGREEMENTS

       2191-01         Demonstration Flight Waiver
       2191-02         **Material Redacted**
       2191-03         Seller Purchased Equipment
</TABLE>

                                       i

<PAGE>

<TABLE>
<S>                                   <C>
RESTRICTED LETTER AGREEMENTS

6-1162-DAN-0123                       Performance Guarantees
6-1162-DAN-0124                       **Material Redacted**
6-1162-DAN-0155                       **Material Redacted**
6-1162-DAN-0156                       Year 2000 Ready Software, Hardware and Firmware
6-1162-DAN-0157                       Miscellaneous Matters
6-1162-MJB-0017                       **Material Redacted**
6-1162-MJB-0030                       **Material Redacted**
6-1162-LAJ-874R                       **Material Redacted**
6-1162-LAJ-874R1                      **Material Redacted**
6-1162-LAJ-874R2                      **Material Redacted**
6-1162-LAJ-982                        **Material Redacted**
</TABLE>

<TABLE>
<CAPTION>
SUPPLEMENTAL AGREEMENTS                          DATED AS OF:
<S>                                            <C>
Supplemental Agreement No. 1                     June 29, 2001
Supplemental Agreement No. 2                   December 21, 2001
Supplemental Agreement No. 3                     June 14, 2002
Supplemental Agreement No. 4                   December 20, 2002
Supplemental Agreement No. 5                   October 31, 2003
Supplemental Agreement No. 6                   September 9, 2004
Supplemental Agreement No. 7                   December 9, 2004
Supplemental Agreement No. 8                    April 15, 2005
</TABLE>

                                       ii

<PAGE>

                                    TABLE 1-4

           AIRCRAFT DELIVERY, DESCRIPTION, PRICE AND ADVANCE PAYMENTS

<TABLE>
<S>                    <C>                         <C>           <C>                     <C>                   <C>
AIRFRAME MODEL/MTGW:   737-700                         154,500   DETAIL SPECIFICATION:   D6-38808-42-I (4/30/2004)

ENGINE MODEL:          CFM56-7B22                                AIRFRAME PRICE BASE YEAR/ESCALATION FORMULA:  Jul-04   BCI-MFG/CPI

AIRFRAME PRICE:                                    $47,784,000   ENGINE PRICE BASE YEAR/ESCALATION FORMULA:      N/A        N/A

OPTIONAL FEATURES:                                 $ 3,517,000   AIRFRAME ESCALATION DATA:
                                                   -----------

SUB-TOTAL OF AIRFRAME AND FEATURES:                $51,301,000   BASE YEAR INDEX (ECI):                                     166.1

ENGINE PRICE (PER AIRCRAFT):                       $         0   BASE YEAR INDEX (CCI):                                     184.1

AIRCRAFT BASIC PRICE (EXCLUDING BFE/SPE):          $51,303,000
                                                   ===========

BUYER FURNISHED EQUIPMENT (BFE) ESTIMATE:          $         0

SELLER PURCHASED EQUIPMENT (SPE) ESTIMATE:         $ 1,800,000

REFUNDABLE DEPOSIT / AIRCRAFT AT PROPOSAL ACCEPT:  $    90,000
</TABLE>

<TABLE>
<CAPTION>
                                                      ESCALATION    ADVANCE PAYMENT PER AIRCRAFT (AMTS. DUE/MOS. PRIOR TO DELIVERY):
                          ESCALATION                 ESTIMATE ADV   ----------------------------------------------------------------
               NUMBER OF    FACTOR    MANUFACTURER   PAYMENT BASE   AT SIGNING       24 MOS.     21/18/12/9/6  MOS.       TOTAL
DELIVERY DATE   AIRCRAFT  (AIRFRAME)  SERIAL NUMBER  PRICE PER A/P      1%             4%                5%                30%
-------------  ---------  ----------  -------------  -------------  ----------     ----------    ------------------  ---------------
<S>            <C>        <C>         <C>            <C>            <C>            <C>           <C>                 <C>
   Aug-2007        1        1.1101         35068     $  58,947,000  $  499,470     $2,357,880    $        2,947,350  $    17,634,100
   Nov-2007        1        1.1126         35067     $  59,346,000  $  503,460     $2,273,840    $        2,967,300  $    17,803,800
   May-2008        1        1.1346         35125     $  60,248,000  $  512,480     $2,409,920    $        3,012,400  $    18,074,400
   Nov-2008        1        1.1511         25126     $  61,125,000  $  521,250     $2,445,000    $        3,056,250  $    18,337,500
   May-2009        1        1.1682         35127     $  62,033,000  $  530,330     $2,481,320    $        3,101,650  $    18,609,900
TOTAL:         5
</TABLE>

                                     Page 1

<PAGE>

                                  THE BOEING COMPANY
                                  P.O. Box 3707
                                  Seattle, WA 95124-2207

6-1162-LAJ-874R1

COPA HOLDINGS, S.A.
Apartado 1572
Avenida Justo Arosemena y Calle 39
Panama 1, Panama

**Material Redacted**

Reference:     Purchase Agreement No. 2191 (the Purchase Agreement) between The
               Boeing Company (Boeing) and COPA HOLDINGS, S.A. (Customer)
               relating to Model 737 aircraft (the Aircraft)

This Letter Agreement amends and supplements the Purchase Agreement. This Letter
Agreement supercedes and replaces in its entirety Letter Agreement
6-1162-MJB-0017. All terms used but not defined in this Letter Agreement have
the same meaning as in the Purchase Agreement. In consideration of the Aircraft
orders, Boeing provides the following to Customer.

1     **Material Redacted**

2.    **Material Redacted**

3.    **Material Redacted**

4,    **Material Redacted**

5.    **Material Redacted**

6.    **Material Redacted**

7.    **Material Redacted**

8.    **Material Redacted**

9.    **Material Redacted**

10.   **Material Redacted**

11.   **Material Redacted**

12.   **Material Redacted**

13.   **Material Redacted**

14.   **Material Redacted**

<PAGE>

Page 2

15.   Confidentiality. Customer understands that certain commercial and
      financial information contained in this Letter Agreement are considered by
      Boeing as confidential. Customer agrees that it will treat this Letter
      Agreement and the information contained herein as confidential and will
      not, without the prior written consent of Boeing, disclose this Letter
      Agreement or any information contained herein to any other person or
      entity.

ACCEPTED AND AGREED TO this

Date: __________________________, 2005

THE BOEING COMPANY

COPA HOLDINGS, S.A.

<PAGE>

                                 PURCHASE RIGHTS
                          AIRCRAFT INFORMATION TABLE A.

                              **Material Redacted**

                                                                          Page 1

<PAGE>

                                 PURCHASE RIGHTS
                          AIRCRAFT INFORMATION TABLE B.

                              **Material Redacted**

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