Cheap flights from St. Louis to Montreal from CA$179

Travelers frequently search for route combinations, such as St. Louis and Edmonton, Chicago, Toronto, Vancouver, Phoenix, San Francisco.

Travelers frequently search for route combinations, such as Montreal and Vancouver, Toronto, Calgary, Edmonton, Winnipeg, Halifax, Kelowna, Mexico City, Lima, Paris, Cancún, Madrid, Victoria, Medellín, Guatemala City, Denpasar, San Salvador, St. John s, Barcelona, Istanbul.

The main airport in St. Louis is St. Louis Lambert International. It is also served by St. Louis Lambert International, Abraham Lincoln Capital, General Wayne A. Downing Peoria International, Evansville Regional, MidAmerica St. Louis, Central Illinois Regional, Waynesville-St. Robert Regional, Cape Girardeau Regional, Columbia Regional, Barkley Regional.

The main airport in Montreal is Montréal–Pierre Elliott Trudeau International. It is also served by Ottawa Macdonald–Cartier International, Burlington International, Ogdensburg International, Plattsburgh International, Québec City Jean Lesage International, Massena International, Adirondack Regional, Lebanon Municipal.

Currently, you can fly between St. Louis and Montreal with Frontier Airlines, Air Transat, United Airlines, Porter Airlines, WestJet.

If you don’t have specific dates for your trip between St. Louis and Montreal, you can enter a date range into the departure and return fields. Most carriers on the Kiwi.com website allow you to search and book up to six months from the day of your search. Order the search results by the best, cheapest, or fastest route, or find the cheapest outbound and return combination in the pricing table.

Traveling between St. Louis and Montreal, you can choose between direct (nonstop) flights or flights with one or more stops. You can select the number of stops on your journey, including an overnight stopover, and the duration of the stopover. What’s more, you can also select where you want to have your stopover. Want to say "Hi" to a friend in another city en route to your destination? Or fancy a quick round of shopping? Go Multi-City or Nomad and add places to your search that you wish to visit.

There are a number of airports in and around St. Louis. The main one is St. Louis Lambert International and other nearby airports include St. Louis Lambert International, Abraham Lincoln Capital, General Wayne A. Downing Peoria International, Evansville Regional, MidAmerica St. Louis, Central Illinois Regional, Waynesville-St. Robert Regional, Cape Girardeau Regional, Columbia Regional, Barkley Regional

There are a number of airports in and around Montreal. The main one is Montréal–Pierre Elliott Trudeau International and other nearby airports include Ottawa Macdonald–Cartier International, Burlington International, Ogdensburg International, Plattsburgh International, Québec City Jean Lesage International, Massena International, Adirondack Regional, Lebanon Municipal.