There are several benefits and drawbacks to consider when deciding whether to fly internationally from Toronto Pearson or Montreal Trudeau: Benefits of flying from Toronto Pearson: Toronto Pearson is the largest airport in Canada, with a wider range of international destinations and more flights to choose from.

Toronto Pearson International Airport (YYZ) is significantly bigger and busier than Montreal-Trudeau International Airport (YUL) in 2026. Toronto Pearson serves as Canada's primary global hub, handling over 45–50 million passengers annually and offering the most non-stop international connections in the country. It occupies a massive land area in Mississauga with two active terminals (Terminal 1 and 3) and five runways. In contrast, Montreal-Trudeau is Canada's third-busiest airport (after Toronto and Vancouver), handling roughly 21–23 million passengers per year. While Montreal is a vital gateway to Europe and Francophone Africa, it operates with a single terminal building divided into domestic, transborder, and international jetties. If you are measuring by "importance" to the national economy or physical footprint, Toronto is the clear "heavyweight" champion, though Montreal is often praised by travelers for being more compact and easier to navigate than the sprawling corridors of Pearson.