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Cheap flights from St. Louis to Montreal from C$ 638

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Montreal departing on 11/3. 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 to Montreal

The cheapest plane tickets to Montreal found on KAYAK recently.
7:27 p.m. - 4:45 p.m.STL-YUL
20h 18m2 stops
6:50 a.m. - 11:45 a.m.YUL-STL
29h 55m3 stops
C$ 638
Find Deal
Tue, 11 Mar - Sat, 15 Mar
12:15 p.m. - 6:00 p.m.STL-YUL
28h 45m3 stops
2:35 p.m. - 2:43 p.m.YUL-STL
25h 08m3 stops
C$ 649
Find Deal
Sat, 25 Jan - Mon, 27 Jan
3:48 p.m. - 4:45 p.m.STL-YUL
23h 57m3 stops
3:55 p.m. - 11:30 a.m.YUL-STL
44h 35m3 stops
C$ 654
Find Deal
Tue, 4 Feb - Sun, 9 Feb
8:50 a.m. - 10:29 a.m.STL-YUL
24h 39m1 stop
6:00 a.m. - 8:58 a.m.YUL-STL
27h 58m1 stop
C$ 658Delta
Find Deal
Sat, 25 Jan - Mon, 27 Jan
8:50 a.m. - 10:29 a.m.STL-YUL
24h 39m1 stop
6:00 a.m. - 8:58 a.m.YUL-STL
27h 58m1 stop
C$ 661Delta
Find Deal
Sat, 25 Jan - Mon, 27 Jan
8:50 a.m. - 10:04 p.m.STL-YUL
12h 14m1 stop
6:10 p.m. - 2:43 p.m.YUL-STL
21h 33m2 stops
C$ 737Spirit Airlines
Find Deal
Sat, 25 Jan - Mon, 27 Jan
5:50 p.m. - 10:10 a.m.STL-YUL
15h 20m2 stops
4:00 p.m. - 8:58 a.m.YUL-STL
17h 58m2 stops
C$ 744Porter Airlines
Find Deal
Sat, 25 Jan - Mon, 27 Jan
8:50 a.m. - 7:10 p.m.STL-YUL
9h 20m1 stop
4:00 p.m. - 8:58 a.m.YUL-STL
17h 58m2 stops
C$ 760Porter Airlines
Find Deal
Sat, 25 Jan - Mon, 27 Jan
5:03 p.m. - 10:10 a.m.STL-YUL
16h 07m1 stop
10:55 a.m. - 8:00 p.m.YUL-STL
10h 05m1 stop
C$ 777American Airlines
Find Deal
Fri, 7 Feb - Sun, 9 Feb
5:03 p.m. - 10:10 a.m.STL-YUL
16h 07m1 stop
7:14 a.m. - 7:23 p.m.YUL-STL
13h 09m1 stop
C$ 816American Airlines
Find Deal
Fri, 17 Jan - Mon, 20 Jan
STL-YUL
2h 30mdirect
Air Canada
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STL-YUL
2h 30mdirect
United Airlines
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6:15 a.m. - 4:55 p.m.STL-YUL
9h 40m2 stops
5:30 p.m. - 11:09 a.m.YUL-STL
18h 39m1 stop
C$ 1,354American Airlines
Find Deal
Wed, 25 Dec - Sun, 5 Jan
5:03 a.m. - 4:55 p.m.STL-YUL
10h 52m2 stops
5:30 p.m. - 11:09 a.m.YUL-STL
18h 39m1 stop
C$ 1,395American Airlines
Find Deal
Wed, 25 Dec - Sun, 5 Jan
6:15 a.m. - 4:55 p.m.STL-YUL
9h 40m2 stops
10:59 a.m. - 7:00 p.m.YUL-STL
9h 01m2 stops
C$ 1,550American Airlines
Find Deal
Wed, 25 Dec - Sun, 5 Jan
6:30 a.m. - 12:20 p.m.STL-YUL
4h 50m1 stop
5:30 p.m. - 11:09 a.m.YUL-STL
18h 39m1 stop
C$ 1,594American Airlines
Find Deal
Wed, 25 Dec - Sun, 5 Jan
5:03 a.m. - 1:35 p.m.STL-YUL
7h 32m1 stop
5:30 p.m. - 11:09 a.m.YUL-STL
18h 39m1 stop
C$ 1,647American Airlines
Find Deal
Wed, 25 Dec - Sun, 5 Jan
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$ 1,088United Airlines
Find Deal
Wed, 18 Jun - Mon, 23 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$ 1,487Air Canada
Find Deal
Sun, 15 Jun - Sat, 21 Jun

American Airlines flights from St. Louis to Montreal

Our best American Airlines deals on St. Louis to Montreal flight tickets
American Airlines
7 Feb
STL5:03 p.m.Lambert-St Louis
16h 07m
1 stop
YUL10:10 a.m.Montreal Pierre Elliott Trudeau Intl
9 Feb
YUL10:55 a.m.Montreal Pierre Elliott Trudeau Intl
10h 05m
1 stop
STL8:00 p.m.Lambert-St Louis
American Airlines
17 Jan
STL5:03 p.m.Lambert-St Louis
16h 07m
1 stop
YUL10:10 a.m.Montreal Pierre Elliott Trudeau Intl
20 Jan
YUL7:14 a.m.Montreal Pierre Elliott Trudeau Intl
13h 09m
1 stop
STL7:23 p.m.Lambert-St Louis
American Airlines
4 Feb
STL6:29 p.m.Lambert-St Louis
14h 41m
2 stops
YUL10:10 a.m.Montreal Pierre Elliott Trudeau Intl
9 Feb
YUL10:55 a.m.Montreal Pierre Elliott Trudeau Intl
10h 05m
1 stop
STL8:00 p.m.Lambert-St Louis

Delta flights from St. Louis to Montreal

Our best Delta deals on St. Louis to Montreal flight tickets
Delta
25 Jan
STL8:50 a.m.Lambert-St Louis
24h 39m
1 stop
YUL10:29 a.m.Montreal Pierre Elliott Trudeau Intl
27 Jan
YUL6:00 a.m.Montreal Pierre Elliott Trudeau Intl
27h 58m
1 stop
STL8:58 a.m.Lambert-St Louis
Delta
25 Jan
STL8:50 a.m.Lambert-St Louis
24h 39m
1 stop
YUL10:29 a.m.Montreal Pierre Elliott Trudeau Intl
27 Jan
YUL6:00 a.m.Montreal Pierre Elliott Trudeau Intl
27h 58m
1 stop
STL8:58 a.m.Lambert-St Louis
Delta
4 Feb
STL10:20 a.m.Lambert-St Louis
9h 43m
1 stop
YUL9:03 p.m.Montreal Pierre Elliott Trudeau Intl
9 Feb
YUL12:49 p.m.Montreal Pierre Elliott Trudeau Intl
4h 48m
1 stop
STL4:37 p.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 January. Flight prices, which tend to average around C$ 580, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of January, then book flights to Montreal from St. Louis during November instead. Flights to Montreal in November, while not as cheap as those in January, still average around C$ 677.

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$ 581.

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$ 638

Fastest flight time

2h 30m

Direct flights

Mon and Thu

Airports in Montreal

1 airport
The best flight deal from St. Louis to Montreal found on momondo in the last 72 hours is C$ 638
The fastest flight from St. Louis to Montreal takes 2h 30m
Direct flights go from St. Louis to Montreal on Monday and Thursday. 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