Montréal-Pierre Elliott Trudeau International Airport is an international airport serving the city of the Montreal surrounding areas in Quebec, eastern Ontario as well as parts of the states of Vermont and New York in the United States. The airport is named after Pierre Trudeau, Prime Minister of Canada from 1968 to 1979 and from 1980 to 1984. The airport was formally known as Montréal–Dorval International Airport.

The airport is the busiest airport in the province of Quebec and the third-busiest airport in Canada. Due to Montreal’s position, the airport was once a busy stop for flights between North America and Europe.

The airport is a hub for national flag carrier Air Canada and Air Transat. The airport is also served by another 42 airlines that offer flights to locations across Canada and cities across Africa, Asia, Europe, North and South America.

The airport features two runways positioned parrel to each other with terminal building located in between. The airport’s single terminal building features two levels that area divided into the separate areas referred to as jetties: the domestic jetty, international jetty and the transborder jetty used for flights to the United States.

The airport is located in Dorval, 20km west of Downtown Montreal. YUL is served by six different bus routes the direct 747 YUL Airport/Downtown, the 460 Express Métropolitaine and the 204, 209, 356 and the 378 bus services which operate day and night services. A rapid transit network extension is currently under construction that will connect the airport with downtown Montreal and is expected to open by 2027.