MEXICO CITY, Sept. 8 /PRNewswire-FirstCall/ -- Grupo Aeroportuario del Sureste, S.A.B. de C.V. (NYSE: ASR; BMV: ASUR) (ASUR), today announced that total passenger traffic for August 2008 increased by 12.9% when compared to August 2007. All figures in this announcement reflect comparisons between August 1 through August 31, 2007 and 2008. Transit and general aviation passengers are excluded. Domestic August August Airport 2007 2008 % Change Cancun 298,486 332,419 11.4 Cozumel 6,286 8,766 39.5 Huatulco 29,048 30,791 6.0 Merida 99,661 92,050 (7.6) Minatitlan 15,728 12,618 (19.8) Oaxaca 41,702 48,236 15.7 Tapachula 17,712 19,301 9.0 Veracruz 81,232 76,218 (6.2) Villahermosa 73,768 73,961 0.3 Total Domestic 663,623 694,360 4.6 International August August Airport 2007 2008 % Change Cancun 608,541 753,287 23.8 Cozumel 32,741 33,994 3.8 Huatulco 2,680 1,556 (41.9) Merida 14,280 11,678 (18.2) Minatitlan 556 411 (26.1) Oaxaca 5,266 5,557 5.5 Tapachula 439 353 (19.6) Veracruz 6,652 6,929 4.2 Villahermosa 4,626 4,726 2.2 Total International 675,781 818,491 21.1 Total August August Airport 2007 2008 % Change Cancun 907,027 1,085,706 19.7 Cozumel 39,027 42,760 9.6 Huatulco 31,728 32,347 2.0 Merida 113,941 103,728 (9.0) Minatitlan 16,284 13,029 (20.0) Oaxaca 46,968 53,793 14.5 Tapachula 18,151 19,654 8.3 Veracruz 87,884 83,147 (5.4) Villahermosa 78,394 78,687 0.4 ASUR Total 1,339,404 1,512,851 12.9 It is important to note that during the month of August 2007 Hurricane Dean hit the Yucatan Peninsula, affecting passenger traffic for Cancun, Cozumel and Merida airports and resulting in 176 cancelled flights. About ASUR: Grupo Aeroportuario del Sureste, S.A.B. 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. DATASOURCE: Grupo Aeroportuario del Sureste, S.A.B. de C.V. CONTACT: Lic. Adolfo Castro of ASUR, +52-55-5284-0408, ; or Susan Borinelli, +1-646-452-2333, , or Maura Gedid, +1-646-452-2335, , both of Breakstone Group for ASUR

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