ASUR Announces Total Passenger Traffic for April 2009 Down 2.1% Year over Year

MEXICO CITY, May 7 /PRNewswire-FirstCall/ -- Grupo Aeroportuario del Sureste, S.A.B. de C.V. (NYSE: ASR; BMV: ASUR) (ASUR), today announced that total passenger traffic for April 2009 decreased by 2.1% when compared to April 2008.

This announcement reflects comparisons between April 1 through April 30, 2009 and 2008. Transit and general aviation passengers are excluded. It is important to consider that Easter and Holy weeks during 2008 were in March while in 2009 they were in April.

Domestic Airport April* April % Change 2008 2009 Cancun 259,090 266,201 2.7 Cozumel 6,739 5,703 (15.4) Huatulco 18,660 30,197 61.8 Merida 100,981 77,803 (23.0) Minatitlan 14,147 10,723 (24.2) Oaxaca 42,899 39,300 (8.4) Tapachula 18,813 18,554 (1.4) Veracruz 78,062 63,987 (18.0) Villahermosa 78,931 59,041 (25.2) Total Domestic 618,322 571,509 (7.6) International Airport April* April % Change 2008 2009 Cancun 879,969 894,104 1.6 Cozumel 44,055 41,044 (6.8) Huatulco 5,122 5,932 15.8 Merida 8,979 8,423 (6.2) Minatitlan 327 333 1.8 Oaxaca 3,044 4,826 58.5 Tapachula 341 387 13.5 Veracruz 5,306 5,290 (0.3) Villahermosa 3,740 3,643 (2.6) Total International 950,883 963,982 1.4 Total Airport April* April % Change 2008 2009 Cancun 1,139,059 1,160,305 1.9 Cozumel 50,794 46,747 (8.0) Huatulco 23,782 36,129 51.9 Merida 109,960 86,226 (21.6) Minatitlan 14,474 11,056 (23.6) Oaxaca 45,943 44,126 (4.0) Tapachula 19,154 18,941 (1.1) Veracruz 83,368 69,277 (16.9) Villahermosa 82,671 62,684 (24.2) ASUR Total 1,569,205 1,535,491 (2.1)

*Note: Easter and Holy weeks during 2008 were in March while in 2009 they were in April.

Due to the recent outbreak of Influenza A (H1N1), also known as "Swine Flu", we are presenting additional comparative information for the last week of April, from Friday, April 25 to Thursday, April 30, 2009 and from Friday, April 25 to Thursday, May 1, 2008.

Domestic April 2008 April 2009 % Change Friday, April 25, 2008 25,568 Friday, April 24, 2009 21,448 (16.1) Saturday, April 26, 2008 22,080 Saturday, April 25, 2009 17,846 (19.2) Sunday, April 27, 2008 21,636 Sunday, April 26, 2009 18,468 (14.6) Monday, April 28, 2008 22,283 Monday, April 27, 2009 17,408 (21.9) Tuesday, April 29, 2008 21,467 Tuesday, April 28, 2009 13,772 (35.8) Wednesday, April 30, 2008 27,606 Wednesday, April 29, 2009 12,343 (55.3) Thursday, May 1, 2008 27,200 Thursday, April 30, 2009 15,167 (44.2) Total 167,840 116,452 (30.6) International April 2008 April 2009 % Change Friday, April 25, 2008 30,699 Friday, April 24, 2009 29,836 (2.8) Saturday, April 26, 2008 44,829 Saturday, April 25,2009 43,824 (2.2) Sunday, April 27, 2008 38,319 Sunday, April 26, 2009 38,649 0.9 Monday, April 28, 2008 22,378 Monday, April 27, 2009 21,428 (4.2) Tuesday, April 29, 2008 22,798 Tuesday, April 28, 2009 17,391 (23.7) Wednesday, April 30, 2008 23,828 Wednesday, April 29,2009 16,508 (30.7) Thursday, May 1, 2008 23,139 Thursday, April 30, 2009 15,734 (32.0) Total 205,990 183,370 (11.0) Total April 2008 April 2009 % Change Friday, April 25, 2008 56,267 Friday, April 24, 2009 51,284 (8.9) Saturday, April 26, 2008 66,909 Saturday, April 25, 2009 61,670 (7.8) Sunday, April 27, 2008 59,955 Sunday, April 26, 2009 57,117 (4.7) Monday, April 28, 2008 44,661 Monday, April 27, 2009 38,836 (13.0) Tuesday, April 29, 2008 44,265 Tuesday, April 28, 2009 31,163 (29.6) Wednesday, April 30, 2008 51,434 Wednesday, April 29,2009 28,851 (43.9) Thursday, May 1, 2008 50,339 Thursday, April 30, 2009 30,901 (38.6) Total 373,830 299,822 (19.8) 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.

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

CONTACT: ASUR, Lic. Adolfo Castro, [phone],
[e-mail]; Breakstone Group, Susan Borinelli, [phone],
[e-mail], or Maura Gedid, [phone],
[e-mail]