FSX/Prepar3D – Scenery MMCM-Chetumal, Q.R., Mexico. Chetumal International Airport (IATA: CTM, ICAO: MMCM) is an international airport located in Chetumal, Quintana Roo, Mexico. It handles national and international air traffic for the city of Chetumal. Its operated by Aeropuertos y Servicios Auxiliares, a federal government-owned corporation. By Fernando Angel G.