Formerly known as Montréal–Dorval International Airport (Aéroport international Montréal-Dorval), is a Canadian airport located on the Island of Montreal, 20 km (12 mi) from Montreal's downtown core. The airport terminals are located entirely in the suburb of Dorval, while the Air Canada headquarters complex and one runway is located in the Montreal borough of Saint-Laurent. It is an international airport serving Greater Montreal, along with the regions of northern Vermont and New York. The airport is named in honour of Trudeau, the 15th Prime Minister of Canada.
The airport is one of two managed and operated by Aéroports de Montréa , a not-for-profit corporation without share capital; the other airport is Montréal–Mirabel northwest of Montreal, which was initially intended to replace the one in Dorval but now deals almost solely with cargo. Montréal–Trudeau is owned by Transport Canada which has a 60-year lease with Aéroports de Montréal, as per Canada's National Airport Policy of 1994.
Trudeau is the busiest airport in the province of Quebec, the fourth-busiest airport in Canada by passenger traffic and by aircraft movements, with 14.8 million passengers and 219,326 movements in 2014. It is one of eight Canadian airports with United States border preclearance and is one of the main gateways into Canada with 9,113,740 or 61.5% of its passengers being on non-domestic flights, the highest proportion amongst Canada's airports during 2014. It is one of four Air Canada hubs and, in that capacity, serves mainly Quebec, the Atlantic Provinces and Eastern Ontario. The air route between YUL and Paris-Charles de Gaulle is the seventh-busiest in terms of passengers carried (1.2 million) between Europe and a non-European destination. On an average day, nearly 40,000 passengers transit through Montréal-Trudeau.