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.

C$ 183 Cheap Flights from St. Louis to Montreal in 2025/26

Q: 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$ 957 to C$ 1,054. The lowest price recently found on this route was C$ 382.

1 adult

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Find the cheapest flights from St. Louis to Montreal

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Cheap round-trip flights

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6:00 a.m. - 3:05 p.m.STL-YUL

8h 05m1 stop

3:55 p.m. - 9:34 a.m.YUL-STL

18h 39m1 stop

C$ 382American Airlines

Find Deal

Tue, 17 Feb - Fri, 20 Feb

11:20 a.m. - 10:20 a.m.STL-YUL

22h 00m1 stop

1:10 p.m. - 10:58 p.m.YUL-STL

10h 48m1 stop

C$ 532United Airlines

Find Deal

Sat, 31 Jan - Wed, 4 Feb

5:11 p.m. - 12:30 a.m.STL-YUL

30h 19m1 stop

4:35 p.m. - 9:21 a.m.YUL-STL

17h 46m1 stop

C$ 561Multiple Airlines

Find Deal

Fri, 16 Jan - Sun, 25 Jan

5:11 p.m. - 12:30 a.m.STL-YUL

30h 19m1 stop

8:00 a.m. - 6:51 a.m.YUL-STL

23h 51m2 stops

C$ 568Multiple Airlines

Find Deal

Fri, 16 Jan - Sun, 25 Jan

9:55 a.m. - 6:40 p.m.STL-YUL

7h 45m1 stop

9:25 a.m. - 10:59 p.m.YUL-STL

14h 34m1 stop

C$ 570United Airlines

Find Deal

Sun, 15 Feb - Wed, 18 Feb

6:43 p.m. - 3:08 p.m.STL-YUL

19h 25m1 stop

3:50 p.m. - 10:20 a.m.YUL-STL

19h 30m1 stop

C$ 571American Airlines

Find Deal

Sat, 31 Jan - Wed, 4 Feb

9:55 a.m. - 9:17 p.m.STL-YUL

10h 22m1 stop

9:15 a.m. - 9:00 p.m.YUL-STL

12h 45m2 stops

C$ 583United Airlines

Find Deal

Sun, 15 Feb - Wed, 18 Feb

11:05 a.m. - 3:08 p.m.STL-YUL

27h 03m1 stop

7:00 a.m. - 9:15 p.m.YUL-STL

15h 15m2 stops

C$ 585American Airlines

Find Deal

Sat, 31 Jan - Wed, 4 Feb

5:11 p.m. - 12:30 a.m.STL-YUL

30h 19m1 stop

4:35 p.m. - 11:33 p.m.YUL-STL

7h 58m1 stop

C$ 595Multiple Airlines

Find Deal

Sat, 17 Jan - Sat, 24 Jan

6:00 a.m. - 3:05 p.m.STL-YUL

8h 05m1 stop

12:58 p.m. - 11:28 p.m.YUL-STL

11h 30m2 stops

C$ 617American Airlines

Find Deal

Tue, 17 Feb - Fri, 20 Feb

American Airlines flights from St. Louis to Montreal

Our best American Airlines deals on St. Louis to Montreal flight tickets

American Airlines

17 Feb

STL6:00 a.m.Lambert-St Louis

8h 05m

1 stop

YUL3:05 p.m.Montreal Pierre Elliott Trudeau Intl

20 Feb

YUL3:55 p.m.Montreal Pierre Elliott Trudeau Intl

18h 39m

1 stop

STL9:34 a.m.Lambert-St Louis

C$ 382

Find similar

American Airlines

31 Jan

STL6:43 p.m.Lambert-St Louis

19h 25m

1 stop

YUL3:08 p.m.Montreal Pierre Elliott Trudeau Intl

4 Feb

YUL3:50 p.m.Montreal Pierre Elliott Trudeau Intl

19h 30m

1 stop

STL10:20 a.m.Lambert-St Louis

C$ 571

Find similar

American Airlines

31 Jan

STL11:05 a.m.Lambert-St Louis

27h 03m

1 stop

YUL3:08 p.m.Montreal Pierre Elliott Trudeau Intl

4 Feb

YUL7:00 a.m.Montreal Pierre Elliott Trudeau Intl

15h 15m

2 stops

STL9:15 p.m.Lambert-St Louis

C$ 585

Find similar

United Airlines flights from St. Louis to Montreal

Our best United Airlines deals on St. Louis to Montreal flight tickets

United Airlines

31 Jan

STL11:20 a.m.Lambert-St Louis

22h 00m

1 stop

YUL10:20 a.m.Montreal Pierre Elliott Trudeau Intl

4 Feb

YUL1:10 p.m.Montreal Pierre Elliott Trudeau Intl

10h 48m

1 stop

STL10:58 p.m.Lambert-St Louis

C$ 532

Find similar

United Airlines

15 Feb

STL9:55 a.m.Lambert-St Louis

7h 45m

1 stop

YUL6:40 p.m.Montreal Pierre Elliott Trudeau Intl

18 Feb

YUL9:25 a.m.Montreal Pierre Elliott Trudeau Intl

14h 34m

1 stop

STL10:59 p.m.Lambert-St Louis

C$ 570

Find similar

United Airlines

15 Feb

STL9:55 a.m.Lambert-St Louis

10h 22m

1 stop

YUL9:17 p.m.Montreal Pierre Elliott Trudeau Intl

18 Feb

YUL9:15 a.m.Montreal Pierre Elliott Trudeau Intl

12h 45m

2 stops

STL9:00 p.m.Lambert-St Louis

C$ 583

Find similar

Fly from

Fly to

Route

Depart

Return

Price

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Tue 17/2

6:00 a.m.-3:05 p.m.

1 stop8h 05m

Montreal Pierre Elliott Trudeau Intl

Fri 20/2

3:55 p.m.-9:34 a.m.

1 stop18h 39m

C$ 382

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Sat 31/1

11:20 a.m.-10:20 a.m.

1 stop22h 00m

Montreal Pierre Elliott Trudeau Intl

Wed 4/2

1:10 p.m.-10:58 p.m.

1 stop10h 48m

C$ 532

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Fri 16/1

5:11 p.m.-12:30 a.m.

1 stop30h 19m

Montreal Pierre Elliott Trudeau Intl

Sun 25/1

4:35 p.m.-9:21 a.m.

1 stop17h 46m

C$ 561

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Fri 16/1

5:11 p.m.-12:30 a.m.

1 stop30h 19m

Montreal Pierre Elliott Trudeau Intl

Sun 25/1

8:00 a.m.-6:51 a.m.

2 stops23h 51m

C$ 568

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Sun 15/2

9:55 a.m.-6:40 p.m.

1 stop7h 45m

Montreal Pierre Elliott Trudeau Intl

Wed 18/2

9:25 a.m.-10:59 p.m.

1 stop14h 34m

C$ 570

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Sat 31/1

6:43 p.m.-3:08 p.m.

1 stop19h 25m

Montreal Pierre Elliott Trudeau Intl

Wed 4/2

3:50 p.m.-10:20 a.m.

1 stop19h 30m

C$ 571

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Sun 15/2

9:55 a.m.-9:17 p.m.

1 stop10h 22m

Montreal Pierre Elliott Trudeau Intl

Wed 18/2

9:15 a.m.-9:00 p.m.

2 stops12h 45m

C$ 583

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Sat 31/1

11:05 a.m.-3:08 p.m.

1 stop27h 03m

Montreal Pierre Elliott Trudeau Intl

Wed 4/2

7:00 a.m.-9:15 p.m.

2 stops15h 15m

C$ 585

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Sat 17/1

5:11 p.m.-12:30 a.m.

1 stop30h 19m

Montreal Pierre Elliott Trudeau Intl

Sat 24/1

4:35 p.m.-11:33 p.m.

1 stop7h 58m

C$ 595

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Tue 17/2

6:00 a.m.-3:05 p.m.

1 stop8h 05m

Montreal Pierre Elliott Trudeau Intl

Fri 20/2

12:58 p.m.-11:28 p.m.

2 stops11h 30m

C$ 617

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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 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 is only 1 cabin class 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.

Can stopping save me money on St. Louis to Montreal flights?

You could potentially save up to 39% on your flight if you consider stops on a St. Louis to Montreal flight.

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

Fastest flight time	2h 35m
Direct flights	Thu, Fri and Sat
Airports in Montreal	1 airport

The fastest flight from St. Louis to Montreal takes 2h 35m

Direct flights go from St. Louis to Montreal on Thursday, Friday and Saturday. There are no airlines offering direct flights.

There is 1 airport near Montreal: Montreal Pierre Elliott Trudeau Intl (YUL)

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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 4h 20m, 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?
momondo data reveals that the most frequently booked plane model on the route from St. Louis to Montreal is Canadair (Bombardier) Regional Jet 900, representing 39.13% of all bookings. The subsequent popular models are Boeing 787-8 Dreamliner at 28.26%, Boeing 787-10 Dreamliner at 4.35%, and Airbus A220-300 at 4.35%.

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.