How much is a ticket from Saint Louis to Montreal Trudeau?

Depending on when you travel and how far in advance you book, fares between Saint Louis and Montreal can differ a lot.

Choose a date to explore the best fares now.

If you’re flexible with timing, consider overnight flights — they often cost less and are less crowded. Exploring multiple date and time combinations can help you find the cheapest solution.

Which departure and arrival airports are available?

Between Saint Louis and Montreal, flight options may depend on the combination of airports available.

• Airports in Saint Louis: Only Saint Louis - Lambert is currently in operation.
• Airports in Montreal: Montreal is served by 2 airports - Saint-Hubert, Trudeau International.

Sometimes flying into a nearby city can be more cost-effective. When a city has multiple airports, it’s worth comparing different flight combinations.

Adjust your flight filters for Saint Louis – Montreal Trudeau

Jetcost gives you tools to search smarter. Pick your ideal price range, airline, departure time, and flight type — then compare offers from the best travel agencies and carriers.

Other popular destinations

Planning a trip to Canada? These cities are popular too: Calgary, Halifax, Montreal, Toronto, Vancouver.

Sorting options let you see the most affordable flights first. Some results may include extra fees shown only at checkout — always read carefully to see what’s included.