How many flights depart from St. Louis to Montreal on average per week?

14 flights are operational weekly from St. Louis to Montreal as of September 2026. The most popular departure day for this route is Mon, with 14% of flights per week taking off on this day.

How many flights depart from St. Louis to Montreal on average per day?

As of September 2026, there are 2 flights per day flying from St. Louis to Montreal. The most common time of day flights depart is 12:00p.m., with 100% of flights taking off in the afternoon.

What is the cheapest airline that flies from Lambert-St Louis to Montreal?

Delta is the most popular carrier operating from Lambert-St Louis to Montreal

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$ 266 Cheap Flights from St. Louis to Montreal in 2026/27

Find the cheapest flights from St. Louis to Montreal

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

9:45 a.m. - 6:54 p.m.STL Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl

8h 09m1 stop New York LaGuardia

2:19 p.m. - 5:11 p.m.YUL Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis

27h 52m1 stop New York LaGuardia

C$ 751Delta

Wed, 2 Dec - Fri, 4 Dec

4:18 p.m. - 9:52 a.m.STL Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl

16h 34m1 stop New York LaGuardia

10:32 a.m. - 8:52 p.m.YUL Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis

11h 20m1 stop New York LaGuardia

C$ 772American Airlines

Tue, 20 Oct - Tue, 27 Oct

2:00 p.m. - 1:38 p.m.STL Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl

22h 38m1 stop New York LaGuardia

9:30 a.m. - 8:14 p.m.YUL Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis

11h 44m1 stop New York LaGuardia

C$ 792Delta

Sat, 10 Oct - Tue, 13 Oct

5:23 p.m. - 11:44 a.m.STL Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl

17h 21m1 stop Chicago O'Hare Intl

10:32 a.m. - 9:46 p.m.YUL Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis

12h 14m1 stop New York LaGuardia

C$ 814American Airlines

Sat, 17 Oct - Wed, 21 Oct

5:23 p.m. - 11:44 a.m.STL Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl

17h 21m1 stop Chicago O'Hare Intl

5:34 p.m. - 10:51 a.m.YUL Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis

18h 17m1 stop Chicago O'Hare Intl

C$ 817American Airlines

Sat, 17 Oct - Tue, 27 Oct

5:23 p.m. - 11:44 a.m.STL Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl

17h 21m1 stop Chicago O'Hare Intl

10:32 a.m. - 9:46 p.m.YUL Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis

12h 14m1 stop New York LaGuardia

C$ 834American Airlines

Sat, 17 Oct - Wed, 21 Oct

5:23 p.m. - 11:44 a.m.STL Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl

17h 21m1 stop Chicago O'Hare Intl

10:32 a.m. - 9:46 p.m.YUL Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis

12h 14m1 stop New York LaGuardia

C$ 837American Airlines

Sat, 17 Oct - Wed, 21 Oct

6:05 p.m. - 1:38 p.m.STL Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl

18h 33m2 stops Detroit Metropolitan Wayne County New York LaGuardia

9:30 a.m. - 8:14 p.m.YUL Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis

11h 44m1 stop New York LaGuardia

C$ 856Delta

Fri, 9 Oct - Tue, 13 Oct

12:10 p.m. - 3:41 p.m.STL Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl

2h 31mdirect

4:55 p.m. - 6:41 p.m.YUL Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis

2h 46mdirect

C$ 860Air Canada

Thu, 8 Oct - Mon, 12 Oct

12:10 p.m. - 3:41 p.m.STL Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl

2h 31mdirect

3:30 p.m. - 8:20 p.m.YUL Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis

5h 50m1 stop Toronto Pearson Intl

C$ 870Air Canada

Thu, 8 Oct - Mon, 12 Oct

Cheap last-minute flights

Enter your travel dates to find the best prices.

8:00 a.m. - 2:20 p.m.STL Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl

5h 20m1 stop Chicago O'Hare Intl

4:55 p.m. - 10:59 p.m.YUL Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis

7h 04m1 stop Chicago O'Hare Intl

C$ 1,644United Airlines

Wed, 23 Sep - Wed, 23 Sep

12:59 p.m. - 6:55 p.m.STL Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl

4h 56m1 stop Chicago O'Hare Intl

4:55 p.m. - 9:36 p.m.YUL Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis

5h 41m1 stop Chicago O'Hare Intl

C$ 1,833United Airlines

Fri, 18 Sep - Sun, 20 Sep

5:00 a.m. - 3:29 p.m.STL Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl

9h 29m2 stops Chicago O'Hare Intl Philadelphia

5:34 p.m. - 12:27 a.m.YUL Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis

7h 53m1 stop Chicago O'Hare Intl

C$ 1,901American Airlines

Wed, 23 Sep - Wed, 23 Sep

5:00 a.m. - 11:44 a.m.STL Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl

5h 44m1 stop Chicago O'Hare Intl

4:15 p.m. - 12:27 a.m.YUL Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis

9h 12m2 stops Philadelphia Chicago O'Hare Intl

C$ 1,914American Airlines

Fri, 18 Sep - Sun, 20 Sep

11:01 a.m. - 9:42 p.m.STL Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl

9h 41m2 stops Chicago O'Hare Intl Philadelphia

4:15 p.m. - 12:27 a.m.YUL Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis

9h 12m2 stops Philadelphia Chicago O'Hare Intl

C$ 1,921American Airlines

Fri, 18 Sep - Sun, 20 Sep

6:00 a.m. - 4:45 p.m.STL Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl

9h 45m2 stops Atlanta Hartsfield-Jackson Toronto Pearson Intl

8:00 p.m. - 10:55 a.m.YUL Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis

15h 55m2 stops Calgary Atlanta Hartsfield-Jackson

C$ 2,048WestJet

Wed, 23 Sep - Wed, 23 Sep

8:30 a.m. - 2:20 p.m.STL Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl

4h 50m1 stop Chicago O'Hare Intl

4:55 p.m. - 6:41 p.m.YUL Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis

2h 46mdirect

C$ 2,094Multiple Airlines

Wed, 23 Sep - Wed, 23 Sep

10:53 a.m. - 6:55 p.m.STL Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl

7h 02m1 stop Chicago O'Hare Intl

4:55 p.m. - 6:41 p.m.YUL Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis

2h 46mdirect

C$ 2,388Multiple Airlines

Fri, 18 Sep - Sun, 20 Sep

12:10 p.m. - 3:41 p.m.STL Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl

2h 31mdirect

4:55 p.m. - 6:41 p.m.YUL Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis

2h 46mdirect

C$ 3,925United Airlines

Fri, 18 Sep - Sun, 20 Sep

Cheap direct flights

Enter your travel dates to find the best prices.

12:10 p.m. - 3:41 p.m.STL Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl

2h 31mdirect

4:55 p.m. - 6:41 p.m.YUL Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis

2h 46mdirect

C$ 860Air Canada

Thu, 8 Oct - Mon, 12 Oct

12:10 p.m. - 3:41 p.m.STL Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl

2h 31mdirect

4:55 p.m. - 6:41 p.m.YUL Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis

2h 46mdirect

C$ 1,000Air Canada

Sat, 17 Oct - Wed, 21 Oct

12:10 p.m. - 3:41 p.m.STL Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl

2h 31mdirect

4:55 p.m. - 6:41 p.m.YUL Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis

2h 46mdirect

C$ 1,156Air Canada

Fri, 9 Oct - Tue, 13 Oct

12:10 p.m. - 3:41 p.m.STL Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl

2h 31mdirect

4:55 p.m. - 6:41 p.m.YUL Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis

2h 46mdirect

C$ 1,266Air Canada

Thu, 15 Oct - Sat, 17 Oct

12:10 p.m. - 3:41 p.m.STL Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl

2h 31mdirect

4:55 p.m. - 6:41 p.m.YUL Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis

2h 46mdirect

C$ 1,312Air Canada

Thu, 15 Oct - Sat, 17 Oct

12:10 p.m. - 3:41 p.m.STL Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl

2h 31mdirect

4:55 p.m. - 6:41 p.m.YUL Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis

2h 46mdirect

C$ 1,322Air Canada

Thu, 15 Oct - Sat, 17 Oct

12:10 p.m. - 3:41 p.m.STL Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl

2h 31mdirect

4:55 p.m. - 6:41 p.m.YUL Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis

2h 46mdirect

C$ 1,330Air Canada

Fri, 9 Oct - Sat, 17 Oct

12:10 p.m. - 3:41 p.m.STL Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl

2h 31mdirect

4:55 p.m. - 6:41 p.m.YUL Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis

2h 46mdirect

C$ 1,372Air Canada

Fri, 2 Oct - Tue, 6 Oct

12:10 p.m. - 3:41 p.m.STL Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl

2h 31mdirect

4:55 p.m. - 6:41 p.m.YUL Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis

2h 46mdirect

C$ 1,403United Airlines

Wed, 30 Sep - Sun, 4 Oct

12:10 p.m. - 3:41 p.m.STL Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl

2h 31mdirect

4:55 p.m. - 6:41 p.m.YUL Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis

2h 46mdirect

C$ 1,500Air Canada

Wed, 30 Sep - Sun, 4 Oct

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Early arrival? Instantly customize your results

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

WestJet flights from St. Louis to Montreal

Our best WestJet deals on St. Louis to Montreal flight tickets

WestJet

22 Oct

STL2:38 p.m.Lambert-St Louis

20h 19m

1 stop

YUL11:57 a.m.Montreal Pierre Elliott Trudeau Intl

24 Oct

YUL7:15 a.m.Montreal Pierre Elliott Trudeau Intl

26h 54m

2 stops

STL9:09 a.m.Lambert-St Louis

C$ 974

WestJet

30 Sep

STL4:59 p.m.Lambert-St Louis

29h 46m

2 stops

YUL11:45 p.m.Montreal Pierre Elliott Trudeau Intl

4 Oct

YUL8:00 p.m.Montreal Pierre Elliott Trudeau Intl

14h 00m

2 stops

STL9:00 a.m.Lambert-St Louis

C$ 1,337

WestJet

30 Sep

STL7:00 a.m.Lambert-St Louis

8h 45m

2 stops

YUL4:45 p.m.Montreal Pierre Elliott Trudeau Intl

4 Oct

YUL8:00 p.m.Montreal Pierre Elliott Trudeau Intl

14h 00m

2 stops

STL9:00 a.m.Lambert-St Louis

C$ 1,416

Delta flights from St. Louis to Montreal

Our best Delta deals on St. Louis to Montreal flight tickets

Delta

2 Dec

STL9:45 a.m.Lambert-St Louis

8h 09m

1 stop

YUL6:54 p.m.Montreal Pierre Elliott Trudeau Intl

4 Dec

YUL2:19 p.m.Montreal Pierre Elliott Trudeau Intl

27h 52m

1 stop

STL5:11 p.m.Lambert-St Louis

C$ 751

Delta

10 Oct

STL2:00 p.m.Lambert-St Louis

22h 38m

1 stop

YUL1:38 p.m.Montreal Pierre Elliott Trudeau Intl

13 Oct

YUL9:30 a.m.Montreal Pierre Elliott Trudeau Intl

11h 44m

1 stop

STL8:14 p.m.Lambert-St Louis

C$ 792

Delta

9 Oct

STL6:05 p.m.Lambert-St Louis

18h 33m

2 stops

YUL1:38 p.m.Montreal Pierre Elliott Trudeau Intl

13 Oct

YUL9:30 a.m.Montreal Pierre Elliott Trudeau Intl

11h 44m

1 stop

STL8:14 p.m.Lambert-St Louis

C$ 856

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisMontreal

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

STLYUL

Lambert-St Louis

Wed 2/12

9:45 a.m.-6:54 p.m.

1 stop8h 09m

Montreal Pierre Elliott Trudeau Intl

Fri 4/12

2:19 p.m.-5:11 p.m.

1 stop27h 52m

C$ 751

St. LouisMontreal

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

STLYUL

Lambert-St Louis

Tue 20/10

4:18 p.m.-9:52 a.m.

1 stop16h 34m

Montreal Pierre Elliott Trudeau Intl

Tue 27/10

10:32 a.m.-8:52 p.m.

1 stop11h 20m

C$ 772

St. LouisMontreal

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

STLYUL

Lambert-St Louis

Sat 10/10

2:00 p.m.-1:38 p.m.

1 stop22h 38m

Montreal Pierre Elliott Trudeau Intl

Tue 13/10

9:30 a.m.-8:14 p.m.

1 stop11h 44m

C$ 792

St. LouisMontreal

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

STLYUL

Lambert-St Louis

Sat 17/10

5:23 p.m.-11:44 a.m.

1 stop17h 21m

Montreal Pierre Elliott Trudeau Intl

Wed 21/10

10:32 a.m.-9:46 p.m.

1 stop12h 14m

C$ 814

St. LouisMontreal

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

STLYUL

Lambert-St Louis

Sat 17/10

5:23 p.m.-11:44 a.m.

1 stop17h 21m

Montreal Pierre Elliott Trudeau Intl

Tue 27/10

5:34 p.m.-10:51 a.m.

1 stop18h 17m

C$ 817

St. LouisMontreal

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

STLYUL

Lambert-St Louis

Sat 17/10

5:23 p.m.-11:44 a.m.

1 stop17h 21m

Montreal Pierre Elliott Trudeau Intl

Wed 21/10

10:32 a.m.-9:46 p.m.

1 stop12h 14m

C$ 834

St. LouisMontreal

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

STLYUL

Lambert-St Louis

Sat 17/10

5:23 p.m.-11:44 a.m.

1 stop17h 21m

Montreal Pierre Elliott Trudeau Intl

Wed 21/10

10:32 a.m.-9:46 p.m.

1 stop12h 14m

C$ 837

St. LouisMontreal

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

STLYUL

Lambert-St Louis

Fri 9/10

6:05 p.m.-1:38 p.m.

2 stops18h 33m

Montreal Pierre Elliott Trudeau Intl

Tue 13/10

9:30 a.m.-8:14 p.m.

1 stop11h 44m

C$ 856

Quickest round-trip

St. LouisMontreal

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

STLYUL

Lambert-St Louis

Thu 8/10

12:10 p.m.-3:41 p.m.

Nonstop2h 31m

Montreal Pierre Elliott Trudeau Intl

Mon 12/10

4:55 p.m.-6:41 p.m.

Nonstop2h 46m

C$ 860

St. LouisMontreal

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

STLYUL

Lambert-St Louis

Thu 8/10

12:10 p.m.-3:41 p.m.

Nonstop2h 31m

Montreal Pierre Elliott Trudeau Intl

Mon 12/10

3:30 p.m.-8:20 p.m.

1 stop5h 50m

C$ 870

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

Prices

Airlines

Other information

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$ 913 to C$ 974.
The lowest price recently found on this route was C$ 751.

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$ 639, 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$ 708.

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$ 266
Fastest flight time	2h 31m
Direct flights	Mon, Tue, 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$ 266. The best round-trip flight deal from St. Louis to Montreal found on momondo in the last 72 hours is C$ 751.

The fastest flight from St. Louis to Montreal takes 2h 31m

Direct flights go from St. Louis to Montreal on Monday, Tuesday, 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?
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 71.64% of all bookings. The subsequent popular models are Boeing 787-8 Dreamliner at 16.42%, Airbus A330-300 at 4.48%, and Airbus A220-300 at 2.99%.

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.

An easier way to manage your Montreal trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Start using Trips

Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

1 adult

Sat 17/10

Sat 24/10

Email me momondo's favourite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Canada

Nearby airports

Cabin classes

Other Canada destinations

Complete your trip

Feeling lucky

Fly into one of these airports located in Montreal

Montreal St Hubert Airport

Montreal Pierre Elliott Trudeau Intl Airport

Cheap flights from St. Louis to Montreal from C$ 266

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 23/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from St. Louis to Montreal

Cheap round-trip flights

Cheap one-way flights

Cheap last-minute flights

Cheap direct flights

Big names, great deals

Big names, great deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

WestJet flights from St. Louis to Montreal

Our best WestJet deals on St. Louis to Montreal flight tickets

Delta flights from St. Louis to Montreal

Our best Delta deals on St. Louis to Montreal flight tickets

momondo Fare Finder

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

See travel insights to Montreal from

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

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

What is the cheapest month to fly to Montreal?

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

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

What is the cheapest airline that flies from Lambert-St Louis to Montreal?

How many flights depart from St. Louis to Montreal on average per day?

How many flights depart from St. Louis to Montreal on average per week?

When to book flights from St. Louis to Montreal

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

Best price found

Fastest flight time

Direct flights

Airports in Montreal

Frequently asked questions about flying from St. Louis to Montreal

Why use momondo?

An easier way to manage your Montreal trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

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

Cabin classes currently available on flights to Montreal

List of cabin classes available on flights landing in Montreal. Availability may vary depending on flight origin and airline.

Popular Cities in Canada

Popular flights according to clicks in the last 7 days on momondo

Complete your trip to Montreal

Explore popular destinations other users love

According to popular flight searches on momondo this year