￥53,410 Cheap Flights from St. Louis (STL) to Montreal (YUL)

View ￥53,410 flight on Sat, Jun 28, 2025Opens in a new window

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Montreal–Trudeau Intl. Airport (YUL)

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Cheap Flights from St. Louis to Montreal (STL-YUL)

Prices were available within the past 7 days and start at ￥53,410 for one-way flights and ￥89,450 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, Jun 28 - Sun, Jun 29
STL
St. Louis
YUL
Montreal
￥89,450 Roundtrip, found 6 days ago
￥89,450
Roundtrip
found 6 days ago
Select Delta flight, departing Sat, Jun 28 from St. Louis to Montreal, returning Sun, Jun 29, priced at ￥89,450 found 6 days ago
Air Canada
Sat, Jun 28 - Sun, Jun 29
STL
St. Louis
YUL
Montreal
￥121,580 Roundtrip, found 6 days ago
￥121,580
Roundtrip
found 6 days ago
Select Air Canada flight, departing Sat, Jun 28 from St. Louis to Montreal, returning Sun, Jun 29, priced at ￥121,580 found 6 days ago
Flights from St. Louis (STL) to Montreal (YUL)
Origin airport
Lambert-St. Louis Intl.
Destination airport
Pierre Elliott Trudeau Intl.
Roundtrip price
￥89,450
Distance
1547 km
Average flight time
2 hours 30 mins

St. Louis to Montreal Flights

Sometimes you just need to get out of town or maybe you’re looking for a change of scenery. Regardless of the reason, a flight from St. Louis to will do just the trick! Go on, plan to see all the famous landmarks and eat your weight in the local cuisine. Your trip is beckoning, so answer the call by packing your suitcase and filling your travel itinerary with exploring Montreal.

Whether you’re flying for business or jet-setting on your personal time, you’ve come to the right place. Here at Expedia.com, we’ll pair you up with STL to YUL flights that won’t make your bank account wince. Ready to temporarily leave behind St. Louis for new horizons? Browse through our cheap airfare, and filter by flight times and dates until you find just what you had in mind. From flights without layovers to ones that arrive early in the morning, you’ll come across plane tickets that suit your travel preferences. You can even bundle your flight to YUL with hotels and car rentals to score even bigger savings.

All set to hit the clouds? Book your travel arrangements with us today and have left-over money to put toward your travel outings and adventures.

Frequently asked questions

How much is a flight from Lambert-St. Louis Intl. Airport (STL) to Montreal Airport?
If you’re traveling from STL to Montréal–Trudeau, round-trip flights start from ￥89,450. This price is based on airfares listed within the last 7 days on Expedia for flights departing within the next year, so don’t hang around. Book today and save yourself both money and time. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from STL to Montreal Airport?
When it comes to cancellation fees, each airline has a different set of terms and conditions. If you decide to cancel your trip, head to our Customer Service Portal.
How do I find cheap flights from Lambert Field to YUL that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you’re searching for Lambert-St. Louis Intl. Airport (STL) to Montreal Airport flights, you’ll see a “no change fees” filter for you to select.
How many hours is the flight from Lambert Field to Pierre Elliott Trudeau Intl. Airport (YUL)?
There are lots of ways to make the 5 hours and 25 minutes between St. Louis Lambert International Airport and YUL fly by. If you want to be productive, organize your camera roll or delete all those backed-up emails. A good snooze also helps pass the time!
How far is the flight from Lambert-St. Louis Intl. Airport (STL) to YUL?
The flying distance between St. Louis Lambert International Airport and YUL is 1,550 kilometers. Squeeze in a nap or make a start on the latest bestseller and the journey will zip by.
Which airlines fly direct from St. Louis Lambert International Airport to Montreal Airport?
Flying directly between Lambert-St. Louis Intl. Airport (STL) and Montreal Airport isn’t possible at the moment. However, you’ll still be able to find a flight to Dorval with at least one stop.
Are Lambert Field to Montréal--Trudeau flight tickets cheaper when they're purchased at the last minute?
Booking your trip from Lambert-St. Louis Intl. Airport (STL) to Pierre Elliott Trudeau Intl. Airport (YUL) last minute could save you some serious cash. However, it could end up costing a good deal more! If you’d prefer not to take the risk, book well ahead of your departure date. In fact, Expedia has some of the biggest bargains up to 12 months in advance. If your preferred carrier hasn’t released tickets yet, check back frequently as deals are updated all the time on Expedia.

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