UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549



                                    FORM 6-K

                        REPORT OF FOREIGN PRIVATE ISSUER
                     PURSUANT TO RULE 13a-16 OR 15d-16 UNDER
                       THE SECURITIES EXCHANGE ACT OF 1934

                           For the month of April 2004

                  GRUPO AEROPORTUARIO DEL SURESTE S.A. DE C.V.
                            (SOUTHEAST AIRPORT GROUP)
--------------------------------------------------------------------------------
                 (Translation of Registrant's Name Into English)

                                     Mexico
--------------------------------------------------------------------------------
                 (Jurisdiction of incorporation or organization)



                  Blvd. Manuel Avila Camacho, No. 40, 6th Floor
                            Col. Lomas de Chapultepec
                               11000 Mexico, D.F.
--------------------------------------------------------------------------------
                    (Address of principal executive offices)

          (Indicate by check mark whether the registrant files or will file
annual reports under cover of Form 20-F or Form 40-F.)

               Form 20-F  x                       Form 40-F
                         ---                                ---

          (Indicate by check mark whether the registrant by furnishing the
information contained in this form is also thereby furnishing the information to
the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of
1934.)

               Yes                                No  x
                   ---                               ---

          (If "Yes" is marked, indicate below the file number assigned to the
registrant in connection with Rule 12g3-2(b): 82-_______.)





                                    LANCHILE



                                  Material Fact


Mr. Alejandro Ferreiro Y.
Superintendent de Valores and Securities

Present




To Whom It May Concern:

As established in the 9th Article, second Item of the 10th article of Law No.
18.045, and having been empowered to this effect, I report as a Material Fact
that on April 7, 2004 we have been notified of the resignation of Director of
the Company by Mr. Pablo Pinera Echenique.







Very Truly Yours,



Alejandro De La Fuente
Vice-President of Finance
Lan Chile S.A.




Cc: Stock Exchange of Santiago
Stock Exchange of Valparaiso
Electronic Stock Exchange





Santiago, Monday, April 5, 2004,


Mr. Jorge Awad
President of Lan Chile

Present



Dear Mr. President:

The purpose of this letter is to present my resignation as Director of Lan
Chile. On April 12, 2004, I begin the post of General Director of Finance of the
Ministry of Public Works, and this position is incompatible with being a
Director of Lan Chile.

I would like to thank you and all the directors for the warm reception I
received during my time in said position.


Very Truly Yours,


Pablo Pinera Echenique.




                                   SIGNATURES


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


                                   Grupo Aeroportuario del Sureste, S.A. de C.V.


                                   By: /s/ ADOLFO CASTRO RIVAS
                                       ------------------------------
                                       Adolfo Castro Rivas
                                       Director of Finance

Date: April 12, 2004