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Cheap flights from St. Louis to Montreal from C$ 251

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Montreal departing on 26/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from St. Louis to Montreal

Cheap round-trip flights

These are some of the best round-trip flight deals from St. Louis to Montreal that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from St. Louis to Montreal.

Cheap last-minute flights

Planning a quick getaway from St. Louis to Montreal? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Montreal, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from St. Louis to Montreal

Find recent round-trip train or bus tickets from St. Louis to Montreal.

All round-trip flight deals from St. Louis to Montreal

The cheapest plane tickets from St. Louis to Montreal found on KAYAK recently.
5:15 p.m. - 6:15 p.m.STL-YUL
24h 00m3 stops
6:50 a.m. - 11:30 a.m.YUL-STL
29h 40m3 stops
C$ 669
Find Deal
Fri, 14 Feb - Sun, 16 Feb
5:17 p.m. - 4:45 p.m.STL-YUL
22h 28m2 stops
6:50 a.m. - 11:45 a.m.YUL-STL
29h 55m3 stops
C$ 672
Find Deal
Thu, 27 Mar - Mon, 31 Mar
6:06 a.m. - 4:19 p.m.STL-YUL
9h 13m1 stop
6:00 a.m. - 2:49 p.m.YUL-STL
9h 49m1 stop
C$ 690Delta
Find Deal
Wed, 5 Mar - Wed, 12 Mar
4:58 p.m. - 10:05 a.m.STL-YUL
16h 07m1 stop
5:35 p.m. - 11:34 a.m.YUL-STL
18h 59m1 stop
C$ 750American Airlines
Find Deal
Wed, 19 Feb - Wed, 26 Feb
10:20 a.m. - 9:03 p.m.STL-YUL
9h 43m1 stop
6:00 a.m. - 2:49 p.m.YUL-STL
9h 49m1 stop
C$ 754Delta
Find Deal
Wed, 5 Mar - Wed, 12 Mar
7:20 a.m. - 4:50 p.m.STL-YUL
8h 30m1 stop
7:14 a.m. - 2:26 p.m.YUL-STL
8h 12m1 stop
C$ 821American Airlines
Find Deal
Wed, 12 Feb - Sat, 15 Feb
5:50 p.m. - 11:22 p.m.STL-YUL
4h 32m1 stop
6:00 a.m. - 12:28 p.m.YUL-STL
7h 28m1 stop
C$ 883WestJet
Find Deal
Fri, 14 Feb - Sun, 16 Feb
6:50 a.m. - 11:58 a.m.STL-YUL
4h 08m1 stop
6:00 a.m. - 11:58 a.m.YUL-STL
6h 58m1 stop
C$ 923WestJet
Find Deal
Wed, 12 Mar - Thu, 13 Mar
7:30 a.m. - 3:58 p.m.STL-YUL
7h 28m1 stop
8:00 p.m. - 11:02 a.m.YUL-STL
16h 02m2 stops
C$ 1,067United Airlines
Find Deal
Sun, 16 Mar - Fri, 21 Mar
8:00 a.m. - 10:04 p.m.STL-YUL
13h 04m2 stops
4:10 p.m. - 3:47 p.m.YUL-STL
24h 37m2 stops
C$ 1,070United Airlines
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Wed, 26 Mar - Sun, 30 Mar
5:20 p.m. - 2:40 p.m.STL-YUL
20h 20m1 stop
C$ 251
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Wed, 26 Feb
5:20 p.m. - 2:40 p.m.STL-YUL
20h 20m1 stop
C$ 253
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Wed, 26 Feb
6:43 p.m. - 10:10 a.m.STL-YUL
14h 27m2 stops
C$ 275
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Wed, 26 Feb
12:15 p.m. - 7:25 p.m.STL-YUL
30h 10m3 stops
C$ 299
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Wed, 26 Feb
6:43 p.m. - 9:00 a.m.STL-YUL
13h 17m2 stops
C$ 304
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Wed, 26 Feb
9:50 a.m. - 12:37 a.m.STL-YUL
13h 47m3 stops
C$ 393
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Fri, 13 Jun
5:00 a.m. - 3:25 p.m.STL-YUL
9h 25m1 stop
C$ 422American Airlines
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Thu, 6 Mar
1:30 p.m. - 5:00 p.m.STL-YUL
2h 30mdirect
C$ 524United Airlines
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Fri, 13 Jun
2:18 p.m. - 11:09 p.m.STL-YUL
7h 51m1 stop
C$ 530Delta
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Fri, 13 Jun
6:30 a.m. - 4:27 p.m.STL-YUL
32h 57m2 stops
C$ 629WestJet
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Fri, 13 Jun
1:30 p.m. - 5:00 p.m.STL-YUL
2h 30mdirect
6:10 p.m. - 8:01 p.m.YUL-STL
2h 51mdirect
C$ 1,122United Airlines
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Fri, 30 May - Fri, 6 Jun
1:30 p.m. - 5:00 p.m.STL-YUL
2h 30mdirect
6:10 p.m. - 8:01 p.m.YUL-STL
2h 51mdirect
C$ 1,225United Airlines
Find Deal
Fri, 13 Jun - Tue, 17 Jun
1:30 p.m. - 5:00 p.m.STL-YUL
2h 30mdirect
6:10 p.m. - 8:01 p.m.YUL-STL
2h 51mdirect
C$ 1,286United Airlines
Find Deal
Sun, 1 Jun - Sun, 8 Jun
1:30 p.m. - 5:00 p.m.STL-YUL
2h 30mdirect
6:10 p.m. - 8:00 p.m.YUL-STL
2h 50mdirect
C$ 1,520Air Canada
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Sun, 15 Jun - Sat, 21 Jun
1:30 p.m. - 5:00 p.m.STL-YUL
2h 30mdirect
6:10 p.m. - 8:00 p.m.YUL-STL
2h 50mdirect
C$ 1,522Air Canada
Find Deal
Sun, 15 Jun - Sat, 21 Jun
1:30 p.m. - 5:00 p.m.STL-YUL
2h 30mdirect
6:10 p.m. - 8:00 p.m.YUL-STL
2h 50mdirect
C$ 1,607United Airlines
Find Deal
Sat, 21 Jun - Wed, 25 Jun
1:30 p.m. - 5:00 p.m.STL-YUL
2h 30mdirect
6:10 p.m. - 8:00 p.m.YUL-STL
2h 50mdirect
C$ 1,686Air Canada
Find Deal
Tue, 3 Jun - Wed, 18 Jun

United Airlines flights from St. Louis to Montreal

Our best United Airlines deals on St. Louis to Montreal flight tickets
United Airlines
16 Mar
STL7:30 a.m.Lambert-St Louis
7h 28m
1 stop
YUL3:58 p.m.Montreal Pierre Elliott Trudeau Intl
21 Mar
YUL8:00 p.m.Montreal Pierre Elliott Trudeau Intl
16h 02m
2 stops
STL11:02 a.m.Lambert-St Louis
C$ 1,067
Find similar
United Airlines
26 Mar
STL8:00 a.m.Lambert-St Louis
13h 04m
2 stops
YUL10:04 p.m.Montreal Pierre Elliott Trudeau Intl
30 Mar
YUL4:10 p.m.Montreal Pierre Elliott Trudeau Intl
24h 37m
2 stops
STL3:47 p.m.Lambert-St Louis
C$ 1,070
Find similar
United Airlines
8 Mar
STL1:05 p.m.Lambert-St Louis
16h 55m
2 stops
YUL7:00 a.m.Montreal Pierre Elliott Trudeau Intl
15 Mar
YUL7:00 a.m.Montreal Pierre Elliott Trudeau Intl
9h 31m
2 stops
STL3:31 p.m.Lambert-St Louis
C$ 1,074
Find similar

WestJet flights from St. Louis to Montreal

Our best WestJet deals on St. Louis to Montreal flight tickets
WestJet
14 Feb
STL5:50 p.m.Lambert-St Louis
4h 32m
1 stop
YUL11:22 p.m.Montreal Pierre Elliott Trudeau Intl
16 Feb
YUL6:00 a.m.Montreal Pierre Elliott Trudeau Intl
7h 28m
1 stop
STL12:28 p.m.Lambert-St Louis
WestJet
12 Mar
STL6:50 a.m.Lambert-St Louis
4h 08m
1 stop
YUL11:58 a.m.Montreal Pierre Elliott Trudeau Intl
13 Mar
YUL6:00 a.m.Montreal Pierre Elliott Trudeau Intl
6h 58m
1 stop
STL11:58 a.m.Lambert-St Louis
WestJet
10 Mar
STL5:37 p.m.Lambert-St Louis
17h 21m
1 stop
YUL11:58 a.m.Montreal Pierre Elliott Trudeau Intl
13 Mar
YUL6:00 a.m.Montreal Pierre Elliott Trudeau Intl
6h 58m
1 stop
STL11:58 a.m.Lambert-St Louis

See travel insights to Montreal from

How to get the cheapest flight ticket from St. Louis to Montreal

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between St. Louis and Montreal?

What is the cheapest month to fly to Montreal?

The cheapest month to fly to Montreal from St. Louis is in November. Flight prices, which tend to average around C$ 678, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of November, then book flights to Montreal from St. Louis during April instead. Flights to Montreal in April, while not as cheap as those in November, still average around C$ 721.

What is the cheapest day to depart on your flight to Montreal?

Our data shows that Monday is the least expensive day to fly to Montreal. Tickets to fly out on this day can be as low as C$ 0. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from St. Louis to Montreal for around C$ 582.

What is the cheapest Lambert-St Louis to Montreal flight route?

Fly from Lambert-St Louis to Montreal Pierre Elliott Trudeau Intl for the best Lambert-St Louis - Montreal flight prices

What cabin class options are available on Lambert-St Louis to Montreal flights?

There are 1 cabin classes available to choose from on Lambert-St Louis to Montreal flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

When to book flights from St. Louis to Montreal

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Montreal according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap St. Louis to Montreal (STL to YMQ) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Montreal

Best price found

C$ 251

Fastest flight time

2h 30m

Direct flights

Mon, Wed, Sat and Sun

Airports in Montreal

1 airport
The best one-way flight to Montreal from St. Louis in the past 72 hours is C$ 251. The best round-trip flight deal from St. Louis to Montreal found on momondo in the last 72 hours is C$ 669.
The fastest flight from St. Louis to Montreal takes 2h 30m
Direct flights go from St. Louis to Montreal on Monday, Wednesday, Saturday and Sunday. Airlines offering direct flights are: United Airlines and Air Canada.
There is 1 airport near Montreal: Montreal Pierre Elliott Trudeau Intl (YUL)

  • How far is Lambert-St Louis to Montreal by plane?

    The straight-line distance from Lambert-St Louis to Montreal is 1566.0 km. Flights usually cover this in 2h 30m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Montreal?

    Prices for flights from Lambert-St Louis Airport to Montreal were last updated today.

  • How old do you have to be to fly from Lambert-St Louis Airport to Montreal?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Montreal.

  • What documentation or ID do you need to fly to Montreal?

    The necessary travel and health documents for your Montreal trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from St. Louis to Montreal?


Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Montreal?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Montreal from St. Louis.

Can I find flights from St. Louis to Montreal with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Montreal from St. Louis with this policy.

How can momondo help me find flights from St. Louis to Montreal?

Once you have performed a search for St. Louis to Montreal flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from St. Louis to Montreal right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Montreal from St. Louis. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.


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Find better results for your trip to Canada

Fly into one of these airports located in Montreal

Airports listed have a maximum distance of 15.1 km from Montreal