Montréal–Mirabel International Airport

Montréal–Mirabel International Airport (IATA: YMX, ICAO: CYMX), originally called Montréal International Airport and widely known as Mirabel, is a cargo airport located in Mirabel, Quebec, Canada, 21 nautical miles (39 km; 24 mi) northwest of Montreal and opened October 4, 1975. By surface area it was the largest airport in the world ever envisioned, with a planned area of 39,660 hectares (396.6 km²; 98,000 acres); King Fahd International Airport in Saudi Arabia, completed in 1999, eventually surpassed its surface area. In 1989, 32,780 hectares (81,000 acres) of the 39,660 hectares (98,000 acres) were deeded back to their owners.

The predominant role of the airport is cargo flights but it is also home to MEDEVAC and general aviation flights as well as being a manufacturing base for Bombardier Aerospace, where final assembly of regional jet (CRJ700, CRJ900 and CRJ1000) aircraft and the Bombardier CSeries is conducted. The former passenger terminal apron is now a racing course.