What’s the cost of a flight from Saint Louis to Montreal Trudeau?

Prices vary based on date, airline, and availability. Compare several options if you're flying between Saint Louis and Montreal.

Choose a date to explore the best fares now.

If possible, avoid holiday periods: ticket prices tend to rise quickly and availability drops, especially on busy routes. Morning and evening flights are often in high demand too — book early to get a good fare.

Which airports serve Saint Louis and Montreal?

When planning a trip of about 1557 km, it's a good idea to check flights from surrounding airports too.

• Airports in Saint Louis: Saint Louis - Lambert is the only operational airport in the area.
• Airports in Montreal: Montreal offers flights from 2 airports - Saint-Hubert, Trudeau International.

The closest airport isn’t always the cheapest — it’s worth checking the alternatives too. In some cities, smaller airports offer lower fares than the main ones.

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Other popular destinations

Looking for alternatives in Canada? Travelers also liked: Calgary, Montreal, Quebec, Toronto, Vancouver.

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