ASUR March Traffic Down 2.3%

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

) today announced that total passenger traffic for March 2011 decreased by 2.3% when compared to March 2010. This announcement reflects comparisons between March 1 through March 31, 2010 and the same period in 2011. Transit and general aviation passengers are excluded. During 2010 Monday through Wednesday of Holy Week fell in March while in 2011 they will fall in April.