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Cheap flights from St. Louis to Montreal from C$ 292

1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from St. Louis to Montreal

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
8:24 p.m. - 11:28 a.m.STL  Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl
14h 04m1 stop Chicago O'Hare Intl
American Airlines Logo
12:08 p.m. - 12:02 a.m.YUL  Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis
12h 54m1 stop Chicago O'Hare Intl
C$ 718American Airlines
Fri, 4 Dec - Fri, 11 Dec
American Airlines Logo
8:24 p.m. - 11:28 a.m.STL  Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl
14h 04m1 stop Chicago O'Hare Intl
American Airlines Logo
1:04 p.m. - 12:02 a.m.YUL  Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis
11h 58m2 stops Philadelphia Chicago O'Hare Intl
C$ 732American Airlines
Fri, 4 Dec - Fri, 11 Dec
American Airlines Logo
8:24 p.m. - 11:28 a.m.STL  Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl
14h 04m1 stop Chicago O'Hare Intl
American Airlines Logo
12:08 p.m. - 12:02 a.m.YUL  Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis
12h 54m1 stop Chicago O'Hare Intl
C$ 795American Airlines
Fri, 11 Dec - Mon, 14 Dec
American Airlines Logo
8:24 p.m. - 11:28 a.m.STL  Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl
14h 04m1 stop Chicago O'Hare Intl
American Airlines Logo
1:04 p.m. - 12:02 a.m.YUL  Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis
11h 58m2 stops Philadelphia Chicago O'Hare Intl
C$ 829American Airlines
Fri, 11 Dec - Mon, 14 Dec
Multiple Airlines Logo
7:54 p.m. - 10:11 p.m.STL  Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl
25h 17m3 stops Denver Intl Nashville Intl Toronto Island
Multiple Airlines Logo
4:40 p.m. - 11:17 a.m.YUL  Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis
19h 37m3 stops Toronto Island Newark Atlanta Hartsfield-Jackson
C$ 838Multiple Airlines
Wed, 9 Dec - Sun, 13 Dec
American Airlines Logo
2:18 p.m. - 11:32 a.m.STL  Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl
20h 14m1 stop Chicago O'Hare Intl
American Airlines Logo
12:13 p.m. - 11:57 p.m.YUL  Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis
12h 44m1 stop Chicago O'Hare Intl
C$ 845American Airlines
Tue, 19 Jan - Sat, 23 Jan
American Airlines Logo
2:18 p.m. - 11:32 a.m.STL  Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl
20h 14m1 stop Chicago O'Hare Intl
American Airlines Logo
1:00 p.m. - 11:57 p.m.YUL  Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis
11h 57m2 stops Philadelphia Chicago O'Hare Intl
C$ 859American Airlines
Tue, 19 Jan - Sat, 23 Jan
American Airlines Logo
8:18 p.m. - 12:17 p.m.STL  Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl
14h 59m2 stops Chicago O'Hare Intl Philadelphia
American Airlines Logo
1:00 p.m. - 11:57 p.m.YUL  Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis
11h 57m2 stops Philadelphia Chicago O'Hare Intl
C$ 866American Airlines
Tue, 19 Jan - Sat, 23 Jan
American Airlines Logo
8:24 p.m. - 11:28 a.m.STL  Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl
14h 04m1 stop Chicago O'Hare Intl
American Airlines Logo
4:00 p.m. - 11:20 a.m.YUL  Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis
20h 20m1 stop Chicago O'Hare Intl
C$ 869American Airlines
Mon, 14 Dec - Tue, 5 Jan
American Airlines Logo
4:32 p.m. - 11:32 a.m.STL  Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl
18h 00m1 stop Chicago O'Hare Intl
American Airlines Logo
1:00 p.m. - 12:04 a.m.YUL  Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis
12h 04m2 stops Philadelphia Chicago O'Hare Intl
C$ 873American Airlines
Tue, 5 Jan - Fri, 8 Jan

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United Airlines flights from St. Louis to Montreal Pierre Elliott Trudeau Intl Airport

Our best United Airlines deals on St. Louis to Montreal Pierre Elliott Trudeau Intl Airport flight tickets
United Airlines
7 Dec
STL6:55 p.m.Lambert-St Louis
14h 22m
1 stop
YUL10:17 a.m.Montreal Pierre Elliott Trudeau Intl
9 Dec
YUL6:10 p.m.Montreal Pierre Elliott Trudeau Intl
19h 12m
1 stop
STL12:22 p.m.Lambert-St Louis
C$ 1,048
United Airlines
9 Dec
STL5:25 a.m.Lambert-St Louis
12h 32m
1 stop
YUL6:57 p.m.Montreal Pierre Elliott Trudeau Intl
13 Dec
YUL6:50 p.m.Montreal Pierre Elliott Trudeau Intl
15h 59m
1 stop
STL9:49 a.m.Lambert-St Louis
C$ 1,091
United Airlines
7 Dec
STL6:55 p.m.Lambert-St Louis
21h 12m
1 stop
YUL5:07 p.m.Montreal Pierre Elliott Trudeau Intl
9 Dec
YUL1:10 p.m.Montreal Pierre Elliott Trudeau Intl
10h 49m
1 stop
STL10:59 p.m.Lambert-St Louis
C$ 1,100

American Airlines flights from St. Louis to Montreal Pierre Elliott Trudeau Intl Airport

Our best American Airlines deals on St. Louis to Montreal Pierre Elliott Trudeau Intl Airport flight tickets
American Airlines
4 Dec
STL8:24 p.m.Lambert-St Louis
14h 04m
1 stop
YUL11:28 a.m.Montreal Pierre Elliott Trudeau Intl
11 Dec
YUL12:08 p.m.Montreal Pierre Elliott Trudeau Intl
12h 54m
1 stop
STL12:02 a.m.Lambert-St Louis
C$ 718
American Airlines
4 Dec
STL8:24 p.m.Lambert-St Louis
14h 04m
1 stop
YUL11:28 a.m.Montreal Pierre Elliott Trudeau Intl
11 Dec
YUL1:04 p.m.Montreal Pierre Elliott Trudeau Intl
11h 58m
2 stops
STL12:02 a.m.Lambert-St Louis
C$ 732
American Airlines
11 Dec
STL8:24 p.m.Lambert-St Louis
14h 04m
1 stop
YUL11:28 a.m.Montreal Pierre Elliott Trudeau Intl
14 Dec
YUL12:08 p.m.Montreal Pierre Elliott Trudeau Intl
12h 54m
1 stop
STL12:02 a.m.Lambert-St Louis
C$ 795

momondo Fare Finder

 
Use the filters below to find and compare flights from St. Louis to Montreal Pierre Elliott Trudeau Intl Airport that are best for you.

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Route

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Price

Cheapest round-trip

St. LouisMontreal

STL Lambert-St Louis - YUL Montreal Pierre Elliott Trudeau Intl

STLYUL

Lambert-St Louis

Fri 4/12

8:24 p.m.-11:28 a.m.

1 stop14h 04m

Montreal Pierre Elliott Trudeau Intl

Fri 11/12

12:08 p.m.-12:02 a.m.

1 stop12h 54m

C$ 718
Quickest round-trip

St. LouisMontreal

STL Lambert-St Louis - YUL Montreal Pierre Elliott Trudeau Intl

STLYUL

Lambert-St Louis

Fri 4/12

8:24 p.m.-11:28 a.m.

1 stop14h 04m

Montreal Pierre Elliott Trudeau Intl

Fri 11/12

1:04 p.m.-12:02 a.m.

2 stops11h 58m

C$ 732

St. LouisMontreal

STL Lambert-St Louis - YUL Montreal Pierre Elliott Trudeau Intl

STLYUL

Lambert-St Louis

Fri 11/12

8:24 p.m.-11:28 a.m.

1 stop14h 04m

Montreal Pierre Elliott Trudeau Intl

Mon 14/12

12:08 p.m.-12:02 a.m.

1 stop12h 54m

C$ 795

St. LouisMontreal

STL Lambert-St Louis - YUL Montreal Pierre Elliott Trudeau Intl

STLYUL

Lambert-St Louis

Fri 11/12

8:24 p.m.-11:28 a.m.

1 stop14h 04m

Montreal Pierre Elliott Trudeau Intl

Mon 14/12

1:04 p.m.-12:02 a.m.

2 stops11h 58m

C$ 829

St. LouisMontreal

STL Lambert-St Louis - YUL Montreal Pierre Elliott Trudeau Intl

STLYUL

Lambert-St Louis

Wed 9/12

7:54 p.m.-10:11 p.m.

3 stops25h 17m

Montreal Pierre Elliott Trudeau Intl

Sun 13/12

4:40 p.m.-11:17 a.m.

3 stops19h 37m

C$ 838

St. LouisMontreal

STL Lambert-St Louis - YUL Montreal Pierre Elliott Trudeau Intl

STLYUL

Lambert-St Louis

Tue 19/1

2:18 p.m.-11:32 a.m.

1 stop20h 14m

Montreal Pierre Elliott Trudeau Intl

Sat 23/1

12:13 p.m.-11:57 p.m.

1 stop12h 44m

C$ 845

St. LouisMontreal

STL Lambert-St Louis - YUL Montreal Pierre Elliott Trudeau Intl

STLYUL

Lambert-St Louis

Tue 19/1

2:18 p.m.-11:32 a.m.

1 stop20h 14m

Montreal Pierre Elliott Trudeau Intl

Sat 23/1

1:00 p.m.-11:57 p.m.

2 stops11h 57m

C$ 859

St. LouisMontreal

STL Lambert-St Louis - YUL Montreal Pierre Elliott Trudeau Intl

STLYUL

Lambert-St Louis

Tue 19/1

8:18 p.m.-12:17 p.m.

2 stops14h 59m

Montreal Pierre Elliott Trudeau Intl

Sat 23/1

1:00 p.m.-11:57 p.m.

2 stops11h 57m

C$ 866

St. LouisMontreal

STL Lambert-St Louis - YUL Montreal Pierre Elliott Trudeau Intl

STLYUL

Lambert-St Louis

Mon 14/12

8:24 p.m.-11:28 a.m.

1 stop14h 04m

Montreal Pierre Elliott Trudeau Intl

Tue 5/1

4:00 p.m.-11:20 a.m.

1 stop20h 20m

C$ 869

St. LouisMontreal

STL Lambert-St Louis - YUL Montreal Pierre Elliott Trudeau Intl

STLYUL

Lambert-St Louis

Tue 5/1

4:32 p.m.-11:32 a.m.

1 stop18h 00m

Montreal Pierre Elliott Trudeau Intl

Fri 8/1

1:00 p.m.-12:04 a.m.

2 stops12h 04m

C$ 873

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Montreal from

How to get the cheapest flight ticket from St. Louis to Montreal Pierre Elliott Trudeau Intl Airport

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 cheapest month to fly to Montreal Pierre Elliott Trudeau Intl Airport?

The month of February is, on average, the cheapest month to fly to Montreal Pierre Elliott Trudeau Intl Airport from St. Louis, with most prices found around C$ 0. The month of August is another great option to travel to Montreal Pierre Elliott Trudeau Intl Airport, with average flight prices from St. Louis averaging around C$ 424.

What is the cheapest Lambert-St Louis to Montreal Pierre Elliott Trudeau Intl flight route?

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

What cabin class options are available on St. Louis to Montreal Pierre Elliott Trudeau Intl Airport flights?

There is only 1 cabin class available to choose from on St. Louis to Montreal Pierre Elliott Trudeau Intl Airport 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 Pierre Elliott Trudeau Intl Airport

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

Cheap St. Louis to Montreal Pierre Elliott Trudeau Intl Airport (STL to YUL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Montreal Pierre Elliott Trudeau Intl Airport

Best price found

C$ 292

Fastest flight time

5h 37m

Direct flights

Fri and Sun
The best one-way flight to Montreal Pierre Elliott Trudeau Intl Airport from St. Louis in the past 72 hours is C$ 292. The best round-trip flight deal from St. Louis to Montreal Pierre Elliott Trudeau Intl Airport found on momondo in the last 72 hours is C$ 718.
The fastest flight from St. Louis to Montreal Pierre Elliott Trudeau Intl Airport takes 5h 37m
Direct flights go from St. Louis to Montreal Pierre Elliott Trudeau Intl Airport on Friday and Sunday. There are no airlines offering direct flights.
Search flight deals

Frequently asked questions about flying from St. Louis to Montreal Pierre Elliott Trudeau Intl Airport

  • How far is Lambert-St Louis to Montreal Pierre Elliott Trudeau Intl by plane?

    The distance between Lambert-St Louis and Montreal Pierre Elliott Trudeau Intl is about 1551.0 km. 5h 37m is a normal flight duration for this route.

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

    Prices for flights from Lambert-St Louis Airport to Montreal Pierre Elliott Trudeau Intl Airport are updated daily.

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

    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 Pierre Elliott Trudeau Intl Airport.

  • What documentation or ID do you need to fly to Montreal Pierre Elliott Trudeau Intl Airport?

    The necessary travel and health documents for your Montreal Pierre Elliott Trudeau Intl Airport 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 Pierre Elliott Trudeau Intl Airport?

Travelling to a place near Montreal?

Book flights to Montreal if you plan to visit one of these locations
Laval
Trois-Rivières
Brossard
Dorval
Cornwall
Sherbrooke
Longueuil
Saint-Sauveur
Montebello
Boucherville
Drummondville
Magog
Bromont
North Hatley
Saint-Jean-sur-Richelieu
Waterloo
Sutton

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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.

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