Connection time calculator, immigration and security, and how to move between terminals at YUL.
At Montreal Trudeau airport, passengers connecting between two international flights can usually stay in the transit area without going through immigration.
The airport has 3 terminals or concourses (Domestic, International, Transborder (U.S.)).
Connecting passengers go through a transfer security screening.
Is your layover at YUL long enough? Pick your connection and get an estimate with the times of this airport.
Terminals / concourses: Domestic, International, Transborder (U.S.)
Getting between them: Walking inside the terminal; short walks between the Domestic and International zones
Three zones: Domestic (flights within Canada), International (everywhere except the U.S. and Canada) and Transborder (flights to the U.S.), a sealed U.S. preclearance area. Domestic and International connect airside, so a Canada-to-international connection needs no rescreening; connections to the U.S. go through preclearance and a rescreen.
Connections to the United States clear U.S. CBP preclearance at YUL before the Transborder gates.
Estimate based on typical times at this airport, not your airline's official minimum connection time. Immigration and security lines change with the time of day and season. On a single ticket, the airline must rebook you if you miss the connection; on separate tickets, it does not.
Sources: layoverindex.com.
Times are estimates: always check with your airline.
