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 January 2005

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



|México                                         
|-----------------------------------------------
|                                               
|(Jurisdiction of incorporation or organization)



|Blvd. Manuel Avila Camacho, No. 40, 6th Floor
      Col. Lomas de Chapultepec
      11000 México, 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  Nox


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

---



ASUR Announces 9.1% Increase in Year-over-Year Total Passenger Traffic for December 2004



Mexico City, January 7, 2005, Grupo Aeroportuario del Sureste, S.A. de C.V. (NYSE: ASR; BMV: ASUR)(ASUR) today announced that total passenger traffic for the month of December 2004 increased by 9.1% percent when compared to December 2003.



All figures in this announcement reflect comparisons between the 31-day period starting December 1 through December 31, 2004 and 2003. Transit and general aviation passengers are excluded.



|             |               |               |         
|------------ | ------------- | ------------- | --------
|Airport      | December 2004 | December 2003 | % Change
|Cancún       | 812,649       | 742,590       | 9.4%    
|Cozumel      | 47,174        | 32,924        | 43.3%   
|Huatulco     | 26,221        | 24,682        | 6.2%    
|Merida       | 80,896        | 83,406        | -3.0%   
|Minatitlan   | 10,041        | 11,074        | -9.3%   
|Oaxaca       | 48,812        | 41,880        | 16.6%   
|Tapachula    | 18,235        | 19,192        | -5.0%   
|Veracruz     | 47,951        | 41,514        | 15.5%   
|Villahermosa | 58,580        | 57,037        | 2.7%    
|ASUR Total   | 1,150,559     | 1,054,299     | 9.1%    





About ASUR:



Grupo Aeroportuario del Sureste, S.A. de C.V. (ASUR) is a Mexican airport operator with concessions to operate, maintain and develop the airports of Cancun, Merida, Cozumel, Villahermosa, Oaxaca, Veracruz, Huatulco, Tapachula and Minatitlan in the southeast of Mexico. The Company is listed both on the Mexican Bolsa, where it trades under the symbol ASUR, and on the NYSE in the U.S., where it trades under the symbol ASR. One ADS represents ten (10) series B shares.



- ENDS -









---

# 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: January 10, 2005