regional and 3d topo map of San Marcos, Ecuador ::
San Marcos airports ::
The nearest airport is SNC - Salinas General Ulpiano Paez, located 43.9 km south west of San Marcos.
Other airports nearby include GYE - Guayaquil Jose Joaquin De Olmedo Intl (84.5 km east), PVO - Portoviejo Reales Tamarindos (111.1 km north), MEC - Manta Eloy Alfaro Intl (120.3 km north), MCH - Machala General Manuel Serrano (155.7 km south east),