San Cristóbal de las Casas National Airport (Spanish: Aeropuerto Nacional de San Cristóbal de las Casas) also known as Aeropuerto Corazón de María (Corazón de María Airport) (IATA: SZT, ICAO: MMSC) was an airport located 18 kilometres (11 mi) from the city of San Cristóbal de las Casas, Chiapas, Mexico. It functioned as the primary airport for San Cristóbal de las Casas, facilitating both domestic and international flights, in addition to supporting flight training, charter, cargo, and general aviation activities. Operated by Aeropuertos y Servicios Auxiliares (ASA), the airport was closed in July 2010 due to structural terrain failures. The closest airport currently handling commercial flights is Tuxtla Gutiérrez International Airport.

The airport covered an area of 165 hectares (410 acres) and had a 2.6 kilometres (1.6 mi) long runway, making it suitable for landing Boeing 737 or McDonnell Douglas DC-9-32 aircraft. In 2009, it served 1,249 passengers.