Cheap Flights from Montreal-Pierre Elliott Trudeau International Airport to St. Louis (STL) Find and Compare the Best Airline Deals | Skyticket

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2025/7
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Total Fares（Round-Trip/Economy）: USD /Per Person

* Displayed fare(s) may differ from the actual search result

-Pierre Elliott Trudeau－St. Louis Lambert Airport
July Lowest Airfares
USD560

The airfare displayed above is for United Airlines

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-Pierre Elliott Trudeau－St. Louis Lambert Airport
August Lowest Airfares
USD507

The airfare displayed above is for United Airlines

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-Pierre Elliott Trudeau－St. Louis Lambert Airport
September Lowest Airfares -----
-Pierre Elliott Trudeau－St. Louis Lambert Airport
October Lowest Airfares
USD579

The airfare displayed above is for Delta Air Lines

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-Pierre Elliott Trudeau－St. Louis Lambert Airport
November Lowest Airfares -----

Montreal－St. Louis
Estimated Flight Time
2 Hours 35 Minutes
Montreal－St. Louis
Number of Operating Airlines
5

Operating Airlines for -Pierre Elliott Trudeau－St. Louis Lambert Airport Route
American Airlines

Air Canada

Delta Air Lines

United Airlines

West Jet

Other Destinations from:Montreal

-Pierre Elliott Trudeau－Tampa(TPA)
USD284〜
* Fares vary in accordance to seat availability
Other Departures to: St. Louis
* Fares vary in accordance to seat availability