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Cheap flights from St. Louis to Montreal from C$ 267

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
8:15 p.m. - 11:25 a.m.STL  Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl
14h 10m1 stop Chicago O'Hare Intl
American Airlines Logo
12:10 p.m. - 11:59 p.m.YUL  Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis
12h 49m1 stop Chicago O'Hare Intl
C$ 688American Airlines
Sat, 7 Nov - Sat, 14 Nov
American Airlines Logo
7:26 a.m. - 9:26 p.m.STL  Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl
13h 00m2 stops Chicago O'Hare Intl Philadelphia
American Airlines Logo
12:10 p.m. - 10:24 p.m.YUL  Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis
11h 14m1 stop Chicago O'Hare Intl
C$ 702American Airlines
Sat, 7 Nov - Sat, 14 Nov
American Airlines Logo
7:26 a.m. - 9:26 p.m.STL  Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl
13h 00m2 stops Chicago O'Hare Intl Philadelphia
American Airlines Logo
1:04 p.m. - 11:59 p.m.YUL  Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis
11h 55m2 stops Philadelphia Chicago O'Hare Intl
C$ 711American Airlines
Sat, 7 Nov - Sat, 14 Nov
American Airlines Logo
8:15 p.m. - 11:25 a.m.STL  Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl
14h 10m1 stop Chicago O'Hare Intl
American Airlines Logo
12:10 p.m. - 10:15 p.m.YUL  Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis
11h 05m1 stop Chicago O'Hare Intl
C$ 719American Airlines
Wed, 11 Nov - Wed, 18 Nov
American Airlines Logo
8:12 p.m. - 11:25 a.m.STL  Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl
14h 13m1 stop Chicago O'Hare Intl
American Airlines Logo
12:10 p.m. - 11:59 p.m.YUL  Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis
12h 49m1 stop Chicago O'Hare Intl
C$ 726American Airlines
Tue, 1 Dec - Fri, 4 Dec
American Airlines Logo
8:15 p.m. - 11:25 a.m.STL  Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl
14h 10m1 stop Chicago O'Hare Intl
American Airlines Logo
1:04 p.m. - 11:59 p.m.YUL  Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis
11h 55m2 stops Philadelphia Chicago O'Hare Intl
C$ 733American Airlines
Wed, 11 Nov - Wed, 18 Nov
American Airlines Logo
8:12 p.m. - 11:25 a.m.STL  Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl
14h 13m1 stop Chicago O'Hare Intl
American Airlines Logo
1:04 p.m. - 11:59 p.m.YUL  Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis
11h 55m2 stops Philadelphia Chicago O'Hare Intl
C$ 741American Airlines
Tue, 1 Dec - Fri, 4 Dec
American Airlines Logo
8:15 p.m. - 11:30 a.m.STL  Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl
14h 15m1 stop Chicago O'Hare Intl
American Airlines Logo
12:10 p.m. - 10:34 p.m.YUL  Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis
11h 24m1 stop Chicago O'Hare Intl
C$ 741American Airlines
Mon, 25 Jan - Wed, 27 Jan
American Airlines Logo
7:28 a.m. - 4:52 p.m.STL  Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl
8h 24m1 stop Chicago O'Hare Intl
American Airlines Logo
7:33 a.m. - 6:17 p.m.YUL  Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis
11h 44m2 stops Philadelphia Chicago O'Hare Intl
C$ 742American Airlines
Tue, 27 Oct - Tue, 3 Nov
American Airlines Logo
8:15 p.m. - 11:30 a.m.STL  Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl
14h 15m1 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$ 755American Airlines
Mon, 25 Jan - Wed, 27 Jan

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American Airlines flights from St. Louis to Montreal

Our best American Airlines deals on St. Louis to Montreal flight tickets
American Airlines
7 Nov
STL8:15 p.m.Lambert-St Louis
14h 10m
1 stop
YUL11:25 a.m.Montreal Pierre Elliott Trudeau Intl
14 Nov
YUL12:10 p.m.Montreal Pierre Elliott Trudeau Intl
12h 49m
1 stop
STL11:59 p.m.Lambert-St Louis
C$ 688
American Airlines
7 Nov
STL7:26 a.m.Lambert-St Louis
13h 00m
2 stops
YUL9:26 p.m.Montreal Pierre Elliott Trudeau Intl
14 Nov
YUL12:10 p.m.Montreal Pierre Elliott Trudeau Intl
11h 14m
1 stop
STL10:24 p.m.Lambert-St Louis
C$ 702
American Airlines
7 Nov
STL7:26 a.m.Lambert-St Louis
13h 00m
2 stops
YUL9:26 p.m.Montreal Pierre Elliott Trudeau Intl
14 Nov
YUL1:04 p.m.Montreal Pierre Elliott Trudeau Intl
11h 55m
2 stops
STL11:59 p.m.Lambert-St Louis
C$ 711

Delta flights from St. Louis to Montreal

Our best Delta deals on St. Louis to Montreal flight tickets
Delta
31 Oct
STL2:00 p.m.Lambert-St Louis
18h 31m
1 stop
YUL9:31 a.m.Montreal Pierre Elliott Trudeau Intl
3 Nov
YUL7:50 p.m.Montreal Pierre Elliott Trudeau Intl
25h 24m
1 stop
STL8:14 p.m.Lambert-St Louis
C$ 860
Delta
31 Oct
STL10:35 a.m.Lambert-St Louis
21h 56m
2 stops
YUL9:31 a.m.Montreal Pierre Elliott Trudeau Intl
3 Nov
YUL9:30 a.m.Montreal Pierre Elliott Trudeau Intl
11h 44m
1 stop
STL8:14 p.m.Lambert-St Louis
C$ 874
Delta
31 Oct
STL8:00 a.m.Lambert-St Louis
14h 25m
2 stops
YUL11:25 p.m.Montreal Pierre Elliott Trudeau Intl
6 Nov
YUL7:46 p.m.Montreal Pierre Elliott Trudeau Intl
15h 03m
2 stops
STL9:49 a.m.Lambert-St Louis
C$ 881

momondo Fare Finder

 
Use the filters below to find and compare flights from St. Louis to Montreal that are best for you.

Fly from

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Route

Depart

Return

Price

Cheapest round-trip

St. LouisMontreal

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

STLYUL

Lambert-St Louis

Sat 7/11

8:15 p.m.-11:25 a.m.

1 stop14h 10m

Montreal Pierre Elliott Trudeau Intl

Sat 14/11

12:10 p.m.-11:59 p.m.

1 stop12h 49m

C$ 688

St. LouisMontreal

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

STLYUL

Lambert-St Louis

Sat 7/11

7:26 a.m.-9:26 p.m.

2 stops13h 00m

Montreal Pierre Elliott Trudeau Intl

Sat 14/11

12:10 p.m.-10:24 p.m.

1 stop11h 14m

C$ 702

St. LouisMontreal

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

STLYUL

Lambert-St Louis

Sat 7/11

7:26 a.m.-9:26 p.m.

2 stops13h 00m

Montreal Pierre Elliott Trudeau Intl

Sat 14/11

1:04 p.m.-11:59 p.m.

2 stops11h 55m

C$ 711

St. LouisMontreal

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

STLYUL

Lambert-St Louis

Wed 11/11

8:15 p.m.-11:25 a.m.

1 stop14h 10m

Montreal Pierre Elliott Trudeau Intl

Wed 18/11

12:10 p.m.-10:15 p.m.

1 stop11h 05m

C$ 719

St. LouisMontreal

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

STLYUL

Lambert-St Louis

Tue 1/12

8:12 p.m.-11:25 a.m.

1 stop14h 13m

Montreal Pierre Elliott Trudeau Intl

Fri 4/12

12:10 p.m.-11:59 p.m.

1 stop12h 49m

C$ 726

St. LouisMontreal

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

STLYUL

Lambert-St Louis

Wed 11/11

8:15 p.m.-11:25 a.m.

1 stop14h 10m

Montreal Pierre Elliott Trudeau Intl

Wed 18/11

1:04 p.m.-11:59 p.m.

2 stops11h 55m

C$ 733

St. LouisMontreal

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

STLYUL

Lambert-St Louis

Tue 1/12

8:12 p.m.-11:25 a.m.

1 stop14h 13m

Montreal Pierre Elliott Trudeau Intl

Fri 4/12

1:04 p.m.-11:59 p.m.

2 stops11h 55m

C$ 741

St. LouisMontreal

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

STLYUL

Lambert-St Louis

Mon 25/1

8:15 p.m.-11:30 a.m.

1 stop14h 15m

Montreal Pierre Elliott Trudeau Intl

Wed 27/1

12:10 p.m.-10:34 p.m.

1 stop11h 24m

C$ 741
Quickest round-trip

St. LouisMontreal

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

STLYUL

Lambert-St Louis

Tue 27/10

7:28 a.m.-4:52 p.m.

1 stop8h 24m

Montreal Pierre Elliott Trudeau Intl

Tue 3/11

7:33 a.m.-6:17 p.m.

2 stops11h 44m

C$ 742

St. LouisMontreal

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

STLYUL

Lambert-St Louis

Mon 25/1

8:15 p.m.-11:30 a.m.

1 stop14h 15m

Montreal Pierre Elliott Trudeau Intl

Wed 27/1

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

2 stops11h 57m

C$ 755

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

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?

Prices are currently low for flights on this route.

Typical prices usually range from C$ 843 to C$ 1,204.
The lowest price recently found on this route was C$ 688.

What is the cheapest month to fly to Montreal?

The cheapest month to fly to Montreal from St. Louis is in August. Flight prices, which tend to average around C$ 648, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of August, then book flights to Montreal from St. Louis during February instead. Flights to Montreal in February, while not as cheap as those in August, still average around C$ 718.

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 St. Louis to Montreal flights?

There is only 1 cabin class available to choose from on 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$ 267

Fastest flight time

2h 31m

Direct flights

Mon, Wed, Thu, Fri, Sat and Sun

Airports in Montreal

2 airports
The best one-way flight to Montreal from St. Louis in the past 72 hours is C$ 267. The best round-trip flight deal from St. Louis to Montreal found on momondo in the last 72 hours is C$ 688.
The fastest flight from St. Louis to Montreal takes 2h 31m
Direct flights go from St. Louis to Montreal on Monday, Wednesday, Thursday, Friday, Saturday and Sunday. There are no airlines offering direct flights.
There are 2 airports in Montreal. From St. Louis there are direct flights to Montreal Pierre Elliott Trudeau Intl (YUL).
Search flight deals

Frequently asked questions about flying from St. Louis to Montreal

  • 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 31m, 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

MET - Montreal Metropolitan Airport
Montreal Pierre Elliott Trudeau Intl Airport