UNITED STATESSECURITIES
AND EXCHANGE COMMISSIONWashington, D.C. 20549

FORM 6-K

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

For the month of January 2004

|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-.)

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# ASUR Announces Total
Passenger Traffic up 13.9% Year over Year

Mexico City, January 6th, 2004,
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 2003 increased by 13.9
percent from the comparable period last year.

All figures in this announcement
reflect comparisons between the 35-day period from November 26 through December 30, 2003,
and the equivalent 35-day period last year from November 27 through December 31, 2002.
Transit and general aviation passengers are excluded.

|            
|------------
|Airport     
|            
|Cancún      
|Cozumel     
|Huatulco    
|Merida      
|Minatitlan  
|Oaxaca      
|Tapachula   
|Veracruz    
|Villahermosa
|            
|ASUR Total  
|            

#  More 

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By week, ASURs total passenger
traffic from November 26 through December 30, 2003 varied year-over-year as follows:

|  | 
|- | 
| | 
| | 
| | 
| | 
| | 
|  | 

|Airport | % Change November 26 thru December 30, 2003
vs. November 27 thru December 31, 2002
|------- | ----------------------------------------------------------------------------------

|             | November 26to December 27 Days | December 3to 9 7 Days | December 10to 167 Days | December 17to 237 Days | December 24to 307 Days
|------------ | ------------------------------ | --------------------- | ---------------------- | ---------------------- | ----------------------
|Cancun       |                                | 13                    | .2                     | 15                     | .0                    
|Cozumel      |                                | (3                    | .4)                    | (7                     | .7)                   
|Huatulco     |                                | 10                    | .1                     | 2                      | .8                    
|Merida       |                                | 8                     | .6                     | 9                      | .8                    
|Minatitlan   |                                | 14                    | .8                     | (0                     | .4)                   
|Oaxaca       |                                | 0                     | .8                     | 2                      | .5                    
|Tapachula    |                                | 12                    | .1                     | 14                     | .1                    
|Veracruz     |                                | 4                     | .1                     | (3                     | .1)                   
|Villahermosa |                                | 33                    | .0                     | 32                     | .9                    
|            
|ASUR Total   |                                | 12                    | .1                     | 12                     | .7                    
|            

# 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 

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# 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
       Name:  ADOLFO CASTRO RIVAS
       Title: Director of Finance
| | ---------------------------------------------------------------------------------------------------------------------------------------------

Date: January 7, 2004