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 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)



|Bosque de Alisos No. 474 — 4th Floor
      Bosques de las Lomas
      05120 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-.)

---







For Immediate Release

ASUR 1Q05 PASSENGER TRAFFIC UP 11.55% YOY

- EBITDA increased by 21.94% to Ps.386.92 million.
- Total passenger traffic up by 11.55%.
- Total revenues up by 22.11%, mainly due to a 15.03% increase in aeronautical revenues.
- Commercial revenues per passenger increased by 41.06%, to Ps.31.27 per passenger.
- Operating income improved by 29.35%.
- EBITDA margin was 65.54% compared with 65.63% in 1Q04.

México D.F., April 20, 2005 Grupo Aeroportuario del Sureste, S.A. de C.V. (NYSE:ASR; BMV:ASUR), (ASUR)the first privatized airport group in Mexico and operator of Cancun Airport and eight others in the southeast of Mexico, today announced results for the three-month period ended March 31, 2005.

____________1Unless otherwise stated, all financial figures discussed in this announcement are unaudited, prepared in accordance with Generally Accepted Accounting Principles in
  Mexico, expressed in constant Mexican pesos as of March 31, 2005, and represent comparisons between the three-month period ended March 31, 2005, and the equivalent three-month period ended March 31, 2004. Tables state figures in thousands of pesos,
  unless otherwise noted. Passenger figures exclude transit and general aviation passengers. Commercial revenues include revenues from the activities of non-permanent ground transportation and parking lots. All U.S. dollar figures are calculated at
the exchange rate of US$1 = Ps.11.1783.



---

Passenger Traffic



For the first quarter of 2005, total passenger traffic increased year-over-year by 11.55%; domestic passenger traffic increased by 4.42%; and international passenger traffic increased by 15.00% .

The 4.42% growth in domestic passenger traffic mainly reflects the 4.13% increase in traffic at the Cancun airport.

The 15.00% increase in international passenger traffic resulted mainly from a 13.64% and 21.19% growth in traffic at the Cancun and Cozumel airports, respectively.

|Table I:  Domestic
    Passengers
  (inthousands)                       
|------------------------------------------------------------------------
|Airport                                                                 
|                                                                        
|Cancun                                                                  
|                                                                        
|Cozumel                                                                 
|                                                                        
|Huatulco                                                                
|                                                                        
|Merida                                                                  
|                                                                        
|Minatitlan                                                              
|                                                                        
|Oaxaca                                                                  
|                                                                        
|Tapachula                                                               
|                                                                        
|Veracruz                                                                
|                                                                        
|Villahermosa                                                            
|                                                                        
|TOTAL                                                                   
|                                                                        
|Note: Passenger figures exclude transit and general aviation passengers.



|Table II: 
International
Passengers
(in
thousands)                      
|------------------------------------------------------------------------
|Airport                                                                 
|                                                                        
|Cancun                                                                  
|                                                                        
|Cozumel                                                                 
|                                                                        
|Huatulco                                                                
|                                                                        
|Merida                                                                  
|                                                                        
|Minatitlan                                                              
|                                                                        
|Oaxaca                                                                  
|                                                                        
|Tapachula                                                               
|                                                                        
|Veracruz                                                                
|                                                                        
|Villahermosa                                                            
|                                                                        
|TOTAL                                                                   
|                                                                        
|Note: Passenger figures exclude transit and general aviation passengers.



---

|Table III:    Total Passengers(in thousands)                            
|------------------------------------------------------------------------
|Airport                                                                 
|                                                                        
|Cancun                                                                  
|                                                                        
|Cozumel                                                                 
|                                                                        
|Huatulco                                                                
|                                                                        
|Merida                                                                  
|                                                                        
|Minatitlan                                                              
|                                                                        
|Oaxaca                                                                  
|                                                                        
|Tapachula                                                               
|                                                                        
|Veracruz                                                                
|                                                                        
|Villahermosa                                                            
|                                                                        
|TOTAL                                                                   
|                                                                        
|Note: Passenger figures exclude transit and general aviation passengers.

Consolidated Results for 1Q05

Total revenues for 1Q05 increased year-over-year by 22.11% to Ps.590.4 million. This was mainly due to:

- An increase of 15.03% in revenues from aeronautical services, principally as a result of the above-mentioned increase in passenger traffic,
and
- An increase of 47.25% in revenues from non-aeronautical services, principally as result of the 57.17% increase in commercial revenues.

ASUR classifies revenues from the following activities ascommercial revenues:duty free, car rental, retail, banking and currency
exchange, advertising, teleservices, non-permanent ground transportation, food and beverage and parking lots.

Commercial revenues improved year-over-year by 57.17%, mainly due to:

- A 30.15% increase in duty-free revenues, primarily as a result of the growth in international passenger traffic and improved product mix.
- An increase of 75.12% in food and beverage revenues, primarily resulting from higher passenger traffic and revenues from ASURs direct
operation of a restaurant and a snack bar at the Cancun airport, which were taken over from a former concession holder in May 2004.Results also reflect higher revenues from the direct commercial operation of a restaurant at the Merida airport, which was taken over from a
former concession holder in February 15, 2005, as a result of the early termination of the concession by the former concession holder, ASUR was not required to disburse
any.
- A 247.86% increase in retail revenues, mainly as a result of growth in international passenger traffic during the quarter, revenues from the

---



| | direct operation of three convenience stores, at the Cancun airport, previously operated by a former concessionaire and the new store openings listed below:
| | ------------------------------------------------------------------------------------------------------------------------------------------------------------



|Airport      | Name              | Month Opened      
|------------ | ----------------- | ------------------
|             |                   |                   
|Cancun       | Airport Free Shop | April 2004        
|             |                   |                   
|Cancun       | Pineda Covalin    | May 2004          
|Cancun       | Sunglass Island   | August 2004       
|Cancun       | Cinco Soles       | March 2004        
|             |                   |                   
|Cancun T2    | Cinco Soles       | March & April 2004
|Cancun
T2    | Airport Free Shop | April 2004        
|             |                   |                   
|Cancun T2    | Farmacia Payless  | May 2004          
|Cancun T2    | La Perfumeria     | October 2004      
|             |                   |                   
|Cancun T2    | Le Boutique       | January 2005      
|             |                   |                   
|Cancun T2    | Bijoux Terner     | December 2004     
|             |                   |                   
|Cancun T2    | Harley Davidson   | December 2004     
|             |                   |                   
|Cozumel      | Airport Free Shop | April 2004        
|             |                   |                   
|Cozumel      | Pineda Covalin    | June 2004         
|             |                   |                   
|Cozumel      | Bijoux Terner     | February 2005     
|             |                   |                   
|Oaxaca       | Airport Free Shop | October 2004      
|             |                   |                   
|Villahermosa | Airport Free Shop | March 2005        
|             |                   |                   

- A 10.24% rise in advertising revenues, as a result of the increase in the minimum fee paid by the Companys main advertising operator.
- A 38.02% increase in revenue in parking lots due to a tariff adjustment and an increase in the passenger traffic.

During 2004, the Company initiated an arbitration process with one of the duty free concessionaires (Dufry Mexico S.A. de C.V.) that operates in the Cancun airport. The dispute relates to the amount paid in rent by
this concessionaire for the units it occupies in Terminal 1 of this airport. Arbitration proceedings are at an advanced stage, and a final decision is expected during the second quarter of 2005.

Total operating costs and expenses for 1Q05 increased year-over-year by 16.12% primarily as a result of:

- A 32.16% increase in costs of services mainly as a result of the costs related to ASURs direct commercial operation of a restaurant, a snack bar and three convenience stores previously operated by a former concessionaire, an increase in maintenance expenses as well as higher payroll resulting
from the reallocation of certain functions from ASURs corporate headquarters to the airport level, principally at Cancun.
- A 21.89% increase in the cost of technical assistance, principally due to the increase in EBITDA for the quarter (a basis for the calculation of the fee).



---

- A 22.08% increase in concession fees mainly due to higher revenues.
- An 5.46% increase in depreciation and amortization, resulting from the capitalization of investments in fixed assets, improvements made to concession assets and ASURs direct commercial operation of two restaurants, a snack bar and three convenience stores previously operated by former
concessionaires.
- The increase in costs was partially offset by an 8.27% decline in administrative expenses reflecting the reorganization in February 2004 of
certain functions from the corporate to the airport level.

Operating margin for 4Q04 improved to 47.96% from 45.27% in the first quarter of last year. This was mainly driven by the 22.11% increase in revenues, primarily the result of the 15.03% growth in aeronautical revenues,
which more than offset the 16.12% increase in costs and expenses for the quarter.

Mexican companies are generally required to pay the greater of their income tax liability or their asset tax liability (determined at a rate of 1.8% of the average tax value of virtually all of the companys
assets (including, in ASURs case, its concessions), less the average tax value of certain liabilities (essentially liabilities of companies resident in Mexico, excluding those related to financial institutions and their intermediaries)). ASUR
made asset tax payments of Ps.39.8 million for 1Q05. Of these payments, Ps.9.9 million was recorded as an expense in the results for the quarter, which net of the Ps.4.3 million tax credit from the adjustment of 2004 taxes resulted in a net amount
of Ps.5.6 million. The difference was recorded as an asset, since the Company expects to recover Ps.29.9 million as a credit against future income tax payments.

Net income for 1Q05 was Ps.215.93 million, a year-over-year increase of 56.55% . Earnings per common sharefor the quarter were
Ps.0.7198, or earnings per ADS (EPADS) (one ADS represents ten series B common shares) of US$0.6439. This compares with Ps. 0.4598, or EPADS of US$0.4113, for the same period last year.





---

|Table IV:     Summary of Consolidated Results for 1Q05
|------------------------------------------------------
|                                                      
|                                                      
|Total Revenues                                        
|                                                      
|Aeronautical Services                                 
|                                                      
|Non-Aeronautical Services                             
|                                                      
|Commercial Revenues                                   
|                                                      
|Operating Profit                                      
|                                                      
|Operating Margin %                                    
|                                                      
|EBITDA                                                
|                                                      
|EBITDA Margin %                                       
|                                                      
|Net Income                                            
|                                                      
|Net Income per Share                                  
|                                                      
|Net Income Per ADS                                    
|                                                      

Note: Figures are shown in thousands of constant Mexican pesos as of March 31, 2005. U.S. dollar figures are calculated at the exchange rate of US$1 = Ps.11.1783.



|Table V:  Commercial Revenues per Passenger for 1Q05
|----------------------------------------------------
|                                                    
|                                                    
|Total Passengers (000)                             
|                                                    
|Total Commercial                                    
|Revenues                                            
|                                                    
|Commercial revenues from                            
|direct operations(1)                                
|                                                    
|Commercial revenues                                 
|excluding direct operations                         
|                                                    
|                                                    
|                                                    
|Total Commercial Revenue                            
|per Passenger                                       
|                                                    
|Commercial revenue from                             
|direct operations per                               
|passenger(1)                                        
|                                                    
|Commercial revenue per                              
|passenger (excluding direct                         
|operations)                                         
|                                                    
|Note:                                               
|                                                    
|                                                    





---



|Table VI:      Operating Costs and Expenses for 1Q05                                 
|-------------------------------------------------------------------------------------
|                                                                                     
|                                                                                     
|Costs of Services                                                                    
|                                                                                     
|Administrative                                                                       
|                                                                                     
|Technical Assistance                                                                 
|                                                                                     
|Concession Fees                                                                      
|                                                                                     
|Depreciation and Amortization                                                        
|                                                                                     
|TOTAL                                                                                
|                                                                                     
|Note:  Figures are shown in thousands of constant Mexican pesos as of March 31, 2005.

---

The Mexican Ministry of Communications and Transportation regulates the majority of ASURs activities through maximum rates, which represent the rates for the maximum possible revenues allowed per traffic unit at
each airport.

ASURs regulated revenues for 1Q05 were Ps.461.41 million, resulting in an annual average tariff per work load unit of Ps.112.89. ASURs regulated revenues accounted for approximately 78.15% of total income
for the period.

The Mexican Ministry of Communications and Transportation reviews compliance with the maximum rates on an annual basis at the close of each year.

---

On March 31, 2005, Airport Facility Usage Rights and Airport Concessions represented 83.31% of the Companys total assets, with current assets representing 12.39% and other assets representing 4.30% .

On March 31, 2005 cash and marketable securities were Ps.1,356.25 million. On the same date, shareholders equity was Ps. 12,168.59 million and total liabilities were Ps.775.15 million, representing 94.22% and
5.78% of total assets, respectively. Total deferred liabilities represented 74.78% of the Companys total liabilities.

---

During the quarter, ASUR made investments of Ps.98.07 million as part of the Companys ongoing plan to modernize its airports.

---

By resolution of the Board of Directors adopted in the meeting held on April 11, 2005 and pursuant to the provisions of Articles Thirty-six and Thirty-seven and other provisions of the by-laws of Grupo Aeroportuario
del



---

Sureste, S.A. de C.V. (the Company) and Articles 181 and 183 of the General Corporations Law (Ley General de Sociedades Mercantiles), the Companys shareholders are hereby called to attend
the General Ordinary Shareholders Meeting (the Meeting), which will take place at 10:00 a.m. on April 28, 2005, at the Companys offices in Bosque de Alisos, No. 47-A 3rd Floor, Colonia Bosques de las Lomas, 05120 Mexico City,
Mexico to discuss the following:

| | I.    | Presentation and approval of the report of the Board of Directors in terms of Article 172 of the General Corporations Law in connection with the operations and results for the fiscal year ended December 31,
2004;                                                                  
| | ----- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
| | II.   | Presentation and approval of the annual report of the Audit Committee regarding its activities as provided by Article 14 Bis 3 of the Securities Market Law (Ley del Mercado de Valores);                                                                                           
| | III.  | Presentation and approval of the report of the Statutory Auditor;                                                                                                                                                                                                                     
| | IV.   | Presentation and approval of the individual and consolidated financial statements of the Company for the fiscal year ended December 31, 2004;                                                                                                                                         
| | V.    | Presentation of the report of the Nominations and Compensation Committee;                                                                                                                                                                                                             
| | VI.   | Proposal regarding the application of the Companys results for the year ended December 31, 2004; proposal to increase the legal reserve of the Company by Ps.30,349,597.13; proposal to increase the reserve account
for the repurchase of the Companys shares by Ps.328,804,338.96.
| | VII.  | Proposal of the Board of Directors to pay a net ordinary cash dividend of Ps.0.62 per share for each outstanding Series B or BB share;                                                                                                                                            
| | VIII. | Appointment and/or ratification of the proprietary and alternate members of the Board of Directors and Statutory Auditors.                                                                                                                                                            
| |       | Resolutions relating thereto;                                                                                                                                                                                                                                                         
| | IX.   | Appointment of an audit committee financial expert;                                                                                                                                                                                                                                   
| | X.    | Resolutions regarding the remuneration to be paid to the plenary and alternate members of the Board of Directors and Statutory Auditors;                                                                                                                                              
| | XI.   | Appointment of Delegates in order to formalize the resolutions adopted in this General Annual Ordinary Shareholders Meeting.                                                                                                                                                         
| |       | Resolutions relating thereto.                                                                                                                                                                                                                                                         
|

---

|Day:             | April 21, 2005                                                           
|---------------- | -------------------------------------------------------------------------
|Time:            | 11:00 AM US EST; 10:00 AM Mexico City time                               
|Dial-in numbers: | (800) 344-1005 (US & Canada) 
    (706) 634-1333 (International & Mexico)
|                 |                                                                          





---

|Access Code: | 5582293                                                 
|------------ | --------------------------------------------------------
|Replay:      | Starting Thursday, April 21 at 2:00 PM US EST, ending at
|             | midnight US EDT on Thursday, April 28. Dial-in number:  
|             | (800) 642-1687 (US & Canada); (706) 645-9291            
|             | (International & Mexico). Access Code: 5582293          

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 NYSE in the U.S., where it trades under the symbol ASR, and on the Mexican Bolsa, where it trades under the symbol ASUR. One ADS represents ten (10) series B
shares.

Some of the statements contained in this press release discuss future expectations or state other forward-looking information. Those statements are subject to risks identified in this press release and in
ASURs filings with the SEC. Actual developments could differ significantly from those contemplated in these forward-looking statements. The forward-looking information is based on various factors and was derived using numerous assumptions. Our
forward-looking statements speak only as of the date they are made and, except as may be required by applicable law, we do not have an obligation to update or revise them, whether as a result of new information, future or
otherwise.

# # # TABLES TO FOLLOW # # #


ASUR 1Q05, Page 9 of 13

---

|Operating
Results
per
Airport                                                     
|----------------------------------------------------------------------------------
|                                                                                  
|                                                                                  
|Cancun                                                                            
|                                                                                  
|Aeronautical                                                                      
|Revenues                                                                          
|                                                                                  
|Non-aeronautical                                                                  
|Revenues                                                                          
|                                                                                  
|Operating Profit                                                                  
|                                                                                  
|EBITDA                                                                            
|                                                                                  
|Cozumel                                                                           
|                                                                                  
|Aeronautical                                                                      
|Revenues                                                                          
|                                                                                  
|Non-aeronautical                                                                  
|Revenues                                                                          
|                                                                                  
|Operating Profit                                                                  
|                                                                                  
|EBITDA                                                                            
|                                                                                  
|Merida                                                                            
|                                                                                  
|Aeronautical                                                                      
|Revenues                                                                          
|                                                                                  
|Non-aeronautical                                                                  
|Revenues                                                                          
|                                                                                  
|Operating Profit                                                                  
|                                                                                  
|EBITDA                                                                            
|                                                                                  
|Villahermosa                                                                      
|                                                                                  
|Aeronautical                                                                      
|Revenues                                                                          
|                                                                                  
|Non-aeronautical                                                                  
|Revenues                                                                          
|                                                                                  
|Operating Profit                                                                  
|                                                                                  
|EBITDA                                                                            
|                                                                                  
|Others                                                                            
|                                                                                  
|Aeronautical                                                                      
|Revenues                                                                          
|                                                                                  
|Non-aeronautical                                                                  
|Revenues                                                                          
|                                                                                  
|Operating Profit                                                                  
|                                                                                  
|Others                                                                            
|                                                                                  
|TOTAL                                                                             
|                                                                                  
|Aeronautical                                                                      
|Revenues                                                                          
|                                                                                  
|Non-aeronautical                                                                  
|Revenues                                                                          
|                                                                                  
|Operating Profit                                                                  
|                                                                                  
|EBITDA                                                                            
|                                                                                  
|Note: All figures are in thousands of constant Mexican pesos as of March 31, 2005.





---



| | Grupo Aeroportuario del Sureste, S.A. de C.V. Consolidated Balance Sheet as of March 31 st, 2005 and 2004 Thousands of Mexican pesos in purchasing power as of March 31 st, 2005 | 
| | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | 

|I t e m                                     |  | March 2004 |  | March 2005 |  | Variation |  | %      
|------------------------------------------- |  | ---------- |  | ---------- |  | --------- |  | -------
|                                            |  |            |  |            |  |           |  |        
|A s s e t s                                 |  |            |  |            |  |           |  |        
|Current Assets                              |  |            |  |            |  |           |  |        
|Cash and cash equivalents                   |  | 976,613    |  | 1,356,254  |  | 379,641   |  | 38.87  
|Trade receivables, net                      |  | 248,639    |  | 269,103    |  | 20,465    |  | 8.23   
|Recoverable taxes and other current assets  |  | 67,635     |  | 36,656     |  | (30,979)  |  | (45.80)
|                                            |  |            |  |            |  |           |  |        
|Total Current Assets                        |  | 1,292,887  |  | 1,662,014  |  | 369,127   |  | 28.55  
|                                           
|Fixed Assets                                |  |            |  |            |  |           |  |        
|Machinery, furniture and equipment, net     |  | 84,184     |  | 90,234     |  | 6,050     |  | 7.19   
|Rights to use airport facilities, net       |  | 2,219,439  |  | 2,149,047  |  | (70,391)  |  | (3.17) 
|Improvements to use airport facilities, net |  | 1,023,480  |  | 1,171,763  |  | 148,283   |  | 14.49  
|Constructions in process                    |  | 126,169    |  | 362,012    |  | 235,843   |  | 186.93 
|Others                                      |  | 11,352     |  | 8,900      |  | (2,452)   |  | (21.60)
|                                            |  |            |  |            |  |           |  |        
|Total Fixed Assets                          |  | 3,464,624  |  | 3,781,957  |  | 317,334   |  | 9.16   
|                                           
|Defferred Assets                            |  |            |  |            |  |           |  |        
|Airports concessions, net                   |  | 8,088,158  |  | 7,854,951  |  | (233,207) |  | (2.88) 
|Defferred income taxes                      |  | -          |  | -          |  | -         |  | -      
|Other                                       |  | 16,248     |  | 115,714    |  | 99,466    |  | 612.16 
|                                            |  |            |  |            |  |           |  |        
|Total Defferred Assets                      |  | 8,104,406  |  | 7,970,666  |  | (133,741) |  | (1.65) 
|                                           
|Total Assets                                |  | 12,861,917 |  | 13,414,637 |  | 552,720   |  | 4.30   
|                                           
|Liabilities and Stockholder's Equity        |  |            |  |            |  |           |  |        
|Current Liabilities                         |  |            |  |            |  |           |  |        
|Trade accounts payable                      |  | 3,883      |  | 5,484      |  | 1,601     |  | 41.23  
|Notes payable                               |  | -          |  | -          |  | -         |  | -      
|Accrued expenses and others payables        |  | 143,050    |  | 169,902    |  | 26,852    |  | 18.77  
|                                            |  |            |  |            |  |           |  |        
|Total Current Liabilities                   |  | 146,932    |  | 175,385    |  | 28,453    |  | 19.36  
|                                           
|Long term liabilities                       |  |            |  |            |  |           |  |        
|Other                                       |  | 14,463     |  | 20,103     |  | 5,640     |  | 38.99  
|Defferred income taxes                      |  | 492,195    |  | 541,548    |  | 49,353    |  | 10.03  
|Defferred employees profit sharing          |  | 39,128     |  | 37,496     |  | (1,632)   |  | (4.17) 
|Labor Obligations                           |  | 609        |  | 617        |  | 9         |  | 1.40   
|                                            |  |            |  |            |  |           |  |        
|Total long term liabilities                 |  | 546,396    |  | 599,765    |  | 53,369    |  | 9.77   
|                                           
|Total Liabilities                           |  | 693,329    |  | 775,150    |  | 81,822    |  | 11.80  
|                                           
|Stockholder's Equity                        |  |            |  |            |  |           |  |        
|Capital stock                               |  | 11,563,155 |  | 11,563,155 |  | 0         |  | 0.00   
|Legal Reserve                               |  | 54,782     |  | 69,423     |  | 14,641    |  | 26.73  
|Share repurchase reserve                    |  | -          |  | 161,181    |  | 161,181   |  | -      
|Net Income for the period                   |  | 137,935    |  | 215,930    |  | 77,995    |  | 56.54  
|Retained earnings                           |  | 412,716    |  | 629,797    |  | 217,081   |  | 52.60  
|                                            |  |            |  |            |  |           |  |        
|Total stockholderps Equity                  |  | 12,168,588 |  | 12,639,487 |  | 470,899   |  | 3.87   
|                                           
|Total Liabilities ans Stockholder's Equity  |  | 12,861,917 |  | 13,414,637 |  | 552,720   |  | 4.30   
|                                            |  |            |  |            |  |           |  |        

---

| | Grupo Aeroportuario del Sureste, S.A. de C.V. Consolidated Statement of Income from January 1st to March 31st, 2005 and 2004 Thousands of Mexican pesos in purchasing power as of March 31 st, 2005 | 
| | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | 

|I t e m                             |  | Accumulative      2004 |  | Accumulative      2005 |  | Variation      % |  | Quarter      2004 |  | Quarter      2005 |  | Variation      %
|----------------------------------- |  | ---------------------- |  | ---------------------- |  | ---------------- |  | ----------------- |  | ----------------- |  | ----------------
|                                    |  |                        |  |                        | 
|                                    |  |                        |  |                        |  |                  |  |                   |  |                   |  |                 
|Revenues                            |  |                        |  |                        |  |                  |  |                   |  |                   |  |                 
|Aeronautical Services               |  | 377,206                |  | 433,901                |  | 15.03            |  | 377,206           |  | 433,901           |  | 15.03           
|                                    |  |                        |  |                        |  |                  |  |                   |  |                   |  |                 
|Non-Aeronautical Services           |  | 106,264                |  | 156,469                |  | 47.25            |  | 106,264           |  | 156,469           |  | 47.25           
|                                    |  |                        |  |                        |  |                  |  |                   |  |                   |  |                 
|                                    |  |                        |  |                        |  |                  |  |                   |  |                   |  |                 
|Total Revenues                      |  | 483,469                |  | 590,370                |  | 22.11            |  | 483,469           |  | 590,370           |  | 22.11           
|                                    |  |                        |  |                        |  |                  |  |                   |  |                   |  |                 
|Operating Expenses                  |  |                        |  |                        |  |                  |  |                   |  |                   |  |                 
|                                    |  |                        |  |                        |  |                  |  |                   |  |                   |  |                 
|Cost of services                    |  | 95,545                 |  | 126,268                |  | 32.16            |  | 95,545            |  | 126,268           |  | 32.16           
|General and administrative expenses |  | 29,669                 |  | 27,214                 |  | (8.27)           |  | 29,669            |  | 27,214            |  | (8.27)          
|Technical Assistance                |  | 16,785                 |  | 20,460                 |  | 21.89            |  | 16,785            |  | 20,460            |  | 21.89           
|Concession fee                      |  | 24,171                 |  | 29,509                 |  | 22.09            |  | 24,171            |  | 29,509            |  | 22.09           
|Depreciation and Amortization       |  | 98,425                 |  | 103,801                |  | 5.46             |  | 98,425            |  | 103,801           |  | 5.46            
|                                    |  |                        |  |                        |  |                  |  |                   |  |                   |  |                 
|Total Operating Expenses            |  | 264,594                |  | 307,251                |  | 16.12            |  | 264,594           |  | 307,251           |  | 16.12           
|                                    |  |                        |  |                        |  |                  |  |                   |  |                   |  |                 
|Operating Income                    |  | 218,876                |  | 283,119                |  | 29.35            |  | 218,876           |  | 283,119           |  | 29.35           
|                                    |  |                        |  |                        |  |                  |  |                   |  |                   |  |                 
|Comprehensive Financing cost        |  | (5,153)                |  | 2,469                  |  | (147.92)         |  | (5,153)           |  | 2,469             |  | (147.92)        
|                                    |  |                        |  |                        |  |                  |  |                   |  |                   |  |                 
|                                    |  |                        |  |                        |  |                  |  |                   |  |                   |  |                 
|Extraordinary and Special Items     |  |                        |  |                        |  |                  |  |                   |  |                   |  |                 
|Rescue Clause                       |  | 2,675                  |  | -                      |  | (100.00)         |  | 2,675             |  | -                 |  | (100.00)        
|Special items ( NMO Restructuring ) |  | 3,527                  |  | 15                     |  | (99.60)          |  | 3,527             |  | 15                |  | (99.60)         
|                                    |  |                        |  |                        |  |                  |  |                   |  |                   |  |                 
|Income Before Income Taxes          |  | 207,520                |  | 285,573                |  | 37.61            |  | 207,520           |  | 285,573           |  | 37.61           
|                                    |  |                        |  |                        |  |                  |  |                   |  |                   |  |                 
|Provision for Income Taxes          |  | 12,944                 |  | 5,639                  |  | (56.44)          |  | 12,944            |  | 5,639             |  | (56.44)         
|Defferred income taxes              |  | 56,641                 |  | 64,004                 |  | 13.00            |  | 56,641            |  | 64,004            |  | 13.00           
|Defferred employees profit sharing  |  | -                      |  | -                      |  | -                |  | -                 |  | -                 |  | -               
|                                    |  |                        |  |                        |  |                  |  |                   |  |                   |  |                 
|                                    |  |                        |  |                        |  |                  |  |                   |  |                   |  |                 
|Net Income for the Year             |  | 137,935                |  | 215,930                |  | 56.55            |  | 137,935           |  | 215,930           |  | 56.55           
|                                    |  |                        |  |                        |  |                  |  |                   |  |                   |  |                 
|                                    |  |                        |  |                        |  |                  |  |                   |  |                   |  |                 
|Earning per share                   |  | 0.4598                 |  | 0.7198                 |  | 56.55            |  | 0.4598            |  | 0.7198            |  | 56.55           
|Earning per ads usd                 |  | 0.4113                 |  | 0.6439                 |  | 56.55            |  | 0.4113            |  | 0.6439            |  | 56.55           
|Exchange rate per dollar 11.1783    |  |                        |  |                        |  |                  |  |                   |  |                   |  |                 
|                                    |  |                        |  |                        |  |                  |  |                   |  |                   |  |                 



---

| | Grupo Aeroportuario del Sureste, S.A. de C.V.  Consolidated Statement of Changes in Financial Position from January 1st to March 31st, 2005 and 2004  Thousands of Mexican pesos in purchasing power as of March 31 st, 2005 | 
| | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | 

|I t e
m                                                        |  | Accumulative |  | Accumulative |  | Variation |  | Quarter  |  | Quarter   |  | Variation
|-------------------------------------------------------------- |  | ------------ |  | ------------ |  | --------- |  | -------- |  | --------- |  | ---------
|                                                               |  | 2004         |  | 2005         |  | %         |  | 2004     |  | 2005      |  | %        
|                                                               |  |              |  |              |  |           |  |          |  |           |  |          
|Net Income for the Year                                        |  | 137,935      |  | 215,930      |  | 56.54     |  | 137,935  |  | 215,930   |  | 56.54    
|Depreciation and Amortization                                  |  | 98,425       |  | 103,801      |  | 5.46      |  | 98,425   |  | 103,801   |  | 5.46     
|Resources provided by operations                               |  | 236,360      |  | 319,731      |  | 35.27     |  | 236,360  |  | 319,731   |  | 35.27    
|Changes in operating assets and liabilities:                   |  |              |  |              |  |           |  |          |  |           |  |          
|Decrease (increase) in:                                        |  |              |  |              |  |           |  |          |  |           |  |          
|Trade receivables                                              |  | (67,884)     |  | (55,133)     |  | (18.78)   |  | (67,884) |  | (55,133)  |  | (18.78)  
|Recoverable taxes and other current assets                     |  | 65,700       |  | (5,281)      |  | (108.04)  |  | 65,700   |  | (5,281)   |  | (108.04) 
|Other defferred assets                                         |  | (181)        |  | (1,256)      |  | 595.27    |  | (181)    |  | (1,256)   |  | 595.27   
|Increase (decrease) in:                                        |  |              |  |              |  |           |  |          |  |           |  |          
|Trade accounts payable                                         |  | (6,923)      |  | (5,603)      |  | (19.07)   |  | (6,923)  |  | (5,603)   |  | (19.07)  
|Accrued expenses and others payables                           |  | 3,365        |  | 2,293        |  | (31.85)   |  | 3,365    |  | 2,293     |  | (31.85)  
|Long term liabilities                                          |  | 23,860       |  | 44,488       |  | 86.46     |  | 23,860   |  | 44,488    |  | 86.46    
|                                                               |  |              |  |              |  |           |  |          |  |           |  |          
|Resources provided by (used for) working capital               |  | 17,937       |  | (20,490)     |  | (214.24)  |  | 17,937   |  | (20,490)  |  | (214.24) 
|Resources provided by (used for) operating activities          |  | 254,297      |  | 299,241      |  | 17.67     |  | 254,297  |  | 299,241   |  | 17.67    
|Resources provided by (used for) financing activities:         |  | -            |  | -            |  | -         |  | -        |  | -         |  | -        
|                                                               |  |              |  |              |  |           |  |          |  |           |  |          
|Notes payable                                                  |  | -            |  |              |  | -         |  | -        |  | -         |  | -        
|Others                                                         |  | -            |  |              |  | -         |  | -        |  | -         |  | -        
|Resources provided by (used for) investing activities:         |  | (30,821)     |  | (98,075)     |  | 218.21    |  | (30,821) |  | (98,075)  |  | 218.21   
|                                                               |  |              |  |              |  |           |  |          |  |           |  |          
|Investments in machinery, furniture and equipment, net         |  | (2,894)      |  | (9,179)      |  | 217.18    |  | (2,894)  |  | (9,179)   |  | 217.18   
|Investments in rights to use airport facilities                |  | (266)        |  | 0            |  | (100.01)  |  | (266)    |  | 0         |  | (100.01) 
|Investments in constructions in process                        |  | (22,094)     |  | (101,290)    |  | 358.44    |  | (22,094) |  | (101,290) |  | 358.44   
|Investments in others                                          |  | (5,567)      |  | 12,394       |  | (322.63)  |  | (5,567)  |  | 12,394    |  | (322.63) 
|Increase (Decrease) in cash and cash equivalents               |  | 223,476      |  | 201,166      |  | (9.98)    |  | 223,476  |  | 201,166   |  | (9.98)   
|Cash and cash equivalents at beginning of the financial period |  | 753,137      |  | 1,155,088    |  | 53.37     |  | 753,137  |  | 1,155,088 |  | 53.37    
|Cash and cash equivalents at the end of the financial period   |  | 976,613      |  | 1,356,254    |  | 38.87     |  | 976,613  |  | 1,356,254 |  | 38.87    
|                                                               |  |              |  |              |  |           |  |          |  |           |  |          



---

# 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 20, 2005