Montréal–Mirabel International Airport, originally called Montréal International Airport, widely known as Mirabel and branded as YMX International Aerocity of Mirabel, is a cargo and former international passenger airport in Mirabel, Quebec, Canada, 21 nautical miles northwest of Montreal. It opened on October 4, 1975, and the last commercial passenger flight took off on October 31, 2004.

The Bombardier CRJ550, CRJ700, CRJ705, CRJ900, and CRJ1000 are a family of regional jet airliners that were designed and manufactured by Canadian transportation conglomerate Bombardier between 1999 and 2020. Their design was derived from the smaller CRJ100 and 200 airliners, the other members of the Bombardier CRJ aircraft family. The CRJ program was acquired by the Japanese corporation Mitsubishi Heavy Industries in 2020, which ended production of the aircraft.