Cheap Flights From Pierre Elliott Trudeau Intl. (YUL) To Lambert-St. Louis Intl. (STL)

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Cheapest Flights from Montreal (YUL) to St. Louis (STL)

The cheapest flights to Lambert-St. Louis Intl. found within the past 7 days were CA $559 round trip and CA $334 one way. Prices and availability subject to change. Additional terms may apply.

Tue, Sep. 2 - Tue, Sep. 9
YUL
Montreal
STL
St. Louis
CA $559 Roundtrip, found 2 days ago
CA $559
Roundtrip
found 2 days ago
Select American Airlines flight, departing Tue, Sep. 2 from Montreal to St. Louis, returning Tue, Sep. 9, priced at CA $559 found 2 days ago
Mon, Sep. 8 - Tue, Sep. 16
YUL
Montreal
STL
St. Louis
CA $562 Roundtrip, found 19 hours ago
CA $562
Roundtrip
found 19 hours ago
Select Delta flight, departing Mon, Sep. 8 from Montreal to St. Louis, returning Tue, Sep. 16, priced at CA $562 found 19 hours ago
Mon, Sep. 8 - Tue, Sep. 16
YUL
Montreal
STL
St. Louis
CA $586 Roundtrip, found 19 hours ago
CA $586
Roundtrip
found 19 hours ago
Select Delta flight, departing Mon, Sep. 8 from Montreal to St. Louis, returning Tue, Sep. 16, priced at CA $586 found 19 hours ago
Wed, Sep. 3 - Wed, Sep. 10
YUL
Montreal
STL
St. Louis
CA $596 Roundtrip, found 2 days ago
CA $596
Roundtrip
found 2 days ago
Select Delta flight, departing Wed, Sep. 3 from Montreal to St. Louis, returning Wed, Sep. 10, priced at CA $596 found 2 days ago
Sun, Aug. 31 - Tue, Sep. 9
YUL
Montreal
STL
St. Louis
CA $599 Roundtrip, found 2 days ago
CA $599
Roundtrip
found 2 days ago
Select American Airlines flight, departing Sun, Aug. 31 from Montreal to St. Louis, returning Tue, Sep. 9, priced at CA $599 found 2 days ago
Tue, Sep. 2 - Wed, Sep. 10
YUL
Montreal
STL
St. Louis
CA $618 Roundtrip, found 2 days ago
CA $618
Roundtrip
found 2 days ago
Select American Airlines flight, departing Tue, Sep. 2 from Montreal to St. Louis, returning Wed, Sep. 10, priced at CA $618 found 2 days ago
Mon, Sep. 8 - Tue, Sep. 16
YUL
Montreal
STL
St. Louis
CA $636 Roundtrip, found 19 hours ago
CA $636
Roundtrip
found 19 hours ago
Select American Airlines flight, departing Mon, Sep. 8 from Montreal to St. Louis, returning Tue, Sep. 16, priced at CA $636 found 19 hours ago
Sun, Aug. 31 - Fri, Sep. 12
YUL
Montreal
STL
St. Louis
CA $640 Roundtrip, found 2 days ago
CA $640
Roundtrip
found 2 days ago
Select American Airlines flight, departing Sun, Aug. 31 from Montreal to St. Louis, returning Fri, Sep. 12, priced at CA $640 found 2 days ago
Tue, Sep. 2 - Sun, Sep. 14
YUL
Montreal
STL
St. Louis
CA $641 Roundtrip, found 2 days ago
CA $641
Roundtrip
found 2 days ago
Select American Airlines flight, departing Tue, Sep. 2 from Montreal to St. Louis, returning Sun, Sep. 14, priced at CA $641 found 2 days ago
Thu, Sep. 4 - Wed, Sep. 10
YUL
Montreal
STL
St. Louis
CA $650 Roundtrip, found 2 days ago
CA $650
Roundtrip
found 2 days ago
Select Delta flight, departing Thu, Sep. 4 from Montreal to St. Louis, returning Wed, Sep. 10, priced at CA $650 found 2 days ago

Lambert-St. Louis Intl. flight + hotel packages - economy flights

Price found within the past 48 hours. Click for updated prices.
Days Inn & Suites by Wyndham Cuba

Days Inn & Suites by Wyndham Cuba

2 out of 5
per person
Sep 18 - Sep 25
found 17 hours ago
Roundtrip non-stop flight included
Montreal (YUL) to St. Louis (STL)
Baymont by Wyndham Sullivan

Baymont by Wyndham Sullivan

2.5 out of 5
per person
Sep 18 - Sep 25
found 17 hours ago
Roundtrip non-stop flight included
Montreal (YUL) to St. Louis (STL)
Comfort Suites Rolla

Comfort Suites Rolla

2.5 out of 5
per person
Sep 18 - Sep 25
found 17 hours ago
Roundtrip non-stop flight included
Montreal (YUL) to St. Louis (STL)
Super 8 by Wyndham Rolla

Super 8 by Wyndham Rolla

2 out of 5
per person
Sep 18 - Sep 25
found 17 hours ago
Roundtrip non-stop flight included
Montreal (YUL) to St. Louis (STL)
Hermann Grain Bins BNB

Hermann Grain Bins BNB

2 out of 5
per person
Sep 18 - Sep 25
found 17 hours ago
Roundtrip non-stop flight included
Montreal (YUL) to St. Louis (STL)
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Frequently asked questions

Are there direct flights from Montreal Airport to Lambert Field?
If you'd prefer to travel quickly from Montreal Airport to Lambert Field, have a look at United Airlines, Air Canada and American Airlines. No airlines provide direct flights on this route, so you'll have to make at least one stopover.
What airlines fly from YUL to Lambert Field?
Unfortunately, there are no airlines currently offering direct flights between Montreal Airport and St. Louis Lambert International Airport. It's in your best interest to plan well in advance to find the ideal price and route.
What is the best day to buy a plane ticket?
Airfares offered on Friday tend to be the cheapest, according to flight demand on Travelocity.ca in 2021. Purchasing your airfares on a Thursday or Saturday can also provide better value, however our advice if you're looking to save money is to avoid booking on a Wednesday or Sunday. Our data shows that those two days have the highest ticket values on average, so keep this in mind if you're browsing flight deals.
What are the cheapest days to fly?
Frequent travellers may already know this, but earlier in the week is often the cheapest time to fly. Flights departing on a Monday are the cheapest of the week. Since flights towards the middle of the week tend to be more popular, this causes the prices to rise. This is why, on average, airfares booked on Travelocity.ca in 2021 were most expensive for Wednesday departures.
How far in advance can you book a flight?
Here's the deal: It is typically possible to start comparing international airfares on Travelocity.ca up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 2-4 weeks prior to their travel dates.*According to flight demand on Travelocity.ca from January to December 2021. Savings are subject to change and may vary depending on selections made.

Popular Flight Routes from Montreal (YUL)

Travelers at YUL love to visit these top cities. Roam to the top destinations from Montreal (YUL) today with the cheap prices from Travelocity!

Popular Flight Routes from St. Louis (STL)

Travelers at STL love to visit these top cities. Roam to the top destinations from St. Louis(STL) today with the cheap prices from Travelocity!

*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.