What is the cheapest airline that flies from Montreal to Missouri?

Air Canada, Delta, and WestJet are the most popular carriers operating from Montreal to Missouri

When did momondo last update prices for flights from Montreal to Missouri?

Prices for flights from Montreal to Missouri are refreshed on a daily basis.

How many operators does momondo search for flights from Montreal to Missouri?

There are 2 operators available for flights from Montreal to Missouri as of April 2026.

How old do you have to be to fly from Montreal to Missouri?

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 Montreal to Missouri.

What documentation or ID do you need to fly to Missouri?

The travel and health documents required for your trip to Missouri can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Missouri. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

C$ 280 Cheap Flights from Montreal to Missouri in 2026

1 adult

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Find the cheapest flights from Montreal to Missouri

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:30 p.m. - 8:25 p.m.

YUL

STL

2h 55mdirect

1:05 p.m. - 4:40 p.m.

STL

YUL

2h 35mdirect

C$ 556Air Canada

Fri, 8 May - Sun, 10 May

6:30 p.m. - 8:25 p.m.

YUL

STL

2h 55mdirect

1:20 p.m. - 4:55 p.m.

STL

YUL

2h 35mdirect

C$ 567Air Canada

Thu, 25 Jun - Tue, 30 Jun

6:30 p.m. - 8:25 p.m.

YUL

STL

2h 55mdirect

7:05 a.m. - 1:21 p.m.

STL

YUL

5h 16m

1 stop

C$ 571Air Canada

Sun, 10 May - Sat, 16 May

6:30 p.m. - 8:25 p.m.

YUL

STL

2h 55mdirect

7:05 a.m. - 1:21 p.m.

STL

YUL

5h 16m

1 stop

C$ 574Air Canada

Sun, 10 May - Sat, 16 May

6:30 p.m. - 8:25 p.m.

YUL

STL

2h 55mdirect

7:05 a.m. - 1:21 p.m.

STL

YUL

5h 16m

1 stop

C$ 575Air Canada

Sun, 10 May - Sat, 16 May

7:00 a.m. - 12:20 p.m.

YUL

STL

6h 20m

1 stop

12:59 p.m. - 11:57 p.m.

STL

YUL

9h 58m

1 stop

C$ 582Delta

Sun, 10 May - Sat, 16 May

9:15 a.m. - 9:18 p.m.

YUL

STL

13h 03m

2 stops

6:00 a.m. - 1:09 p.m.

STL

YUL

6h 09m

1 stop

C$ 583United Airlines

Wed, 20 May - Wed, 27 May

6:00 a.m. - 6:15 p.m.

YUL

MCI

13h 15m

2 stops

6:05 a.m. - 1:36 p.m.

MCI

YUL

6h 31m

1 stop

C$ 764Delta

Wed, 30 Sep - Sun, 18 Oct

12:40 p.m. - 8:47 p.m.

YUL

MCI

9h 07m

1 stop

5:40 p.m. - 11:43 a.m.

MCI

YUL

17h 03m

1 stop

C$ 778WestJet

Mon, 1 Jun - Tue, 9 Jun

7:00 a.m. - 12:21 p.m.

YUL

MCI

6h 21m

1 stop

6:00 a.m. - 11:10 p.m.

MCI

YUL

16h 10m

1 stop

C$ 779WestJet

Wed, 30 Sep - Sun, 18 Oct

Air Canada flights from Montreal to Missouri

Our best Air Canada deals on Montreal to Missouri flight tickets

Air Canada

8 May

YUL6:30 p.m.Montreal Pierre Elliott Trudeau Intl

2h 55m

STL8:25 p.m.Lambert-St Louis

10 May

STL1:05 p.m.Lambert-St Louis

2h 35m

YUL4:40 p.m.Montreal Pierre Elliott Trudeau Intl

C$ 556

Air Canada

25 Jun

YUL6:30 p.m.Montreal Pierre Elliott Trudeau Intl

2h 55m

STL8:25 p.m.Lambert-St Louis

30 Jun

STL1:20 p.m.Lambert-St Louis

2h 35m

YUL4:55 p.m.Montreal Pierre Elliott Trudeau Intl

C$ 567

Air Canada

10 May

YUL6:30 p.m.Montreal Pierre Elliott Trudeau Intl

2h 55m

STL8:25 p.m.Lambert-St Louis

16 May

STL7:05 a.m.Lambert-St Louis

5h 16m

1 stop

YUL1:21 p.m.Montreal Pierre Elliott Trudeau Intl

C$ 571

United Airlines flights from Montreal to Missouri

Our best United Airlines deals on Montreal to Missouri flight tickets

United Airlines

20 May

YUL6:10 a.m.Montreal Pierre Elliott Trudeau Intl

7h 37m

1 stop

STL12:47 p.m.Lambert-St Louis

27 May

STL6:00 a.m.Lambert-St Louis

6h 09m

1 stop

YUL1:09 p.m.Montreal Pierre Elliott Trudeau Intl

C$ 583

United Airlines

25 Jun

YUL9:45 a.m.Montreal Pierre Elliott Trudeau Intl

7h 01m

1 stop

STL3:46 p.m.Lambert-St Louis

30 Jun

STL6:01 a.m.Lambert-St Louis

9h 09m

1 stop

YUL4:10 p.m.Montreal Pierre Elliott Trudeau Intl

C$ 594

United Airlines

15 Oct

YUL6:10 a.m.Montreal Pierre Elliott Trudeau Intl

9h 08m

1 stop

STL2:18 p.m.Lambert-St Louis

19 Oct

STL8:15 p.m.Lambert-St Louis

13h 25m

1 stop

YUL10:40 a.m.Montreal Pierre Elliott Trudeau Intl

C$ 604

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

MontrealSt. Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Fri 8/5

6:30 p.m.-8:25 p.m.

Nonstop2h 55m

Lambert-St Louis

Sun 10/5

1:05 p.m.-4:40 p.m.

Nonstop2h 35m

C$ 556

MontrealSt. Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Thu 25/6

6:30 p.m.-8:25 p.m.

Nonstop2h 55m

Lambert-St Louis

Tue 30/6

1:20 p.m.-4:55 p.m.

Nonstop2h 35m

C$ 567

MontrealSt. Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Sun 10/5

6:30 p.m.-8:25 p.m.

Nonstop2h 55m

Lambert-St Louis

Sat 16/5

7:05 a.m.-1:21 p.m.

1 stop5h 16m

C$ 571

MontrealSt. Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Sun 10/5

6:30 p.m.-8:25 p.m.

Nonstop2h 55m

Lambert-St Louis

Sat 16/5

7:05 a.m.-1:21 p.m.

1 stop5h 16m

C$ 574

MontrealSt. Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Sun 10/5

6:30 p.m.-8:25 p.m.

Nonstop2h 55m

Lambert-St Louis

Sat 16/5

7:05 a.m.-1:21 p.m.

1 stop5h 16m

C$ 575

MontrealSt. Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Sun 10/5

7:00 a.m.-12:20 p.m.

1 stop6h 20m

Lambert-St Louis

Sat 16/5

12:59 p.m.-11:57 p.m.

1 stop9h 58m

C$ 582

MontrealSt. Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Wed 20/5

9:15 a.m.-9:18 p.m.

2 stops13h 03m

Lambert-St Louis

Wed 27/5

6:00 a.m.-1:09 p.m.

1 stop6h 09m

C$ 583

MontrealKansas City

YUL - MCI

YULMCI

Montreal Pierre Elliott Trudeau Intl

Wed 30/9

6:00 a.m.-6:15 p.m.

2 stops13h 15m

Kansas City

Sun 18/10

6:05 a.m.-1:36 p.m.

1 stop6h 31m

C$ 764

MontrealKansas City

YUL - MCI

YULMCI

Montreal Pierre Elliott Trudeau Intl

Mon 1/6

12:40 p.m.-8:47 p.m.

1 stop9h 07m

Kansas City

Tue 9/6

5:40 p.m.-11:43 a.m.

1 stop17h 03m

C$ 778

MontrealKansas City

YUL - MCI

YULMCI

Montreal Pierre Elliott Trudeau Intl

Wed 30/9

7:00 a.m.-12:21 p.m.

1 stop6h 21m

Kansas City

Sun 18/10

6:00 a.m.-11:10 p.m.

1 stop16h 10m

C$ 779

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 Montreal to Missouri

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

What is the cheapest month to fly to Missouri?

The month of July is, on average, the cheapest month to fly to Missouri from Montreal, with most prices found around C$ 391. If you are unable to visit Missouri during the month of July, then departing from Montreal during the month September is also very affordable. Most momondo users find prices during this month for around C$ 574.

What is the cheapest day to depart on your flight to Missouri?

Our data shows that Wednesday is the least expensive day to fly to Missouri. Tickets to fly out on this day can be as low as C$ 748. If your travel schedule is flexible, try to avoid departing on a Thursday because tickets tend to average around C$ 828. These prices are subject to change though, so be sure to set up a Price Alert for flights to Missouri.

What is the cheapest Montreal to Missouri flight route?

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

What cabin class options are available on Montreal to Missouri flights?

There is only 1 cabin class available to choose from on Montreal to Missouri 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 Montreal to Missouri flights?

You could potentially save up to 22% on your flight if you consider stops on a Montreal to Missouri flight.

Cheap Montreal to Missouri flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Montreal to Missouri

Fastest flight time	2h 46m
Direct flights	Every day
Airports in Missouri	55 airports

The fastest flight from Montreal to Missouri takes 2h 46m

Direct flights go from Montreal to Missouri every day.

There are 55 airports in Missouri. From Montreal there are direct flights to Lambert-St Louis (STL).

Search flight deals

Frequently asked questions about flying from Montreal to Missouri

When did momondo last update prices for flights from Montreal to Missouri?
Prices for flights from Montreal to Missouri are refreshed on a daily basis.
How many operators does momondo search for flights from Montreal to Missouri?
There are 2 operators available for flights from Montreal to Missouri as of April 2026.
How old do you have to be to fly from Montreal to Missouri?
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 Montreal to Missouri.
What documentation or ID do you need to fly to Missouri?
The travel and health documents required for your trip to Missouri can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Missouri. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Montreal to Missouri?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Montreal to Missouri is Airbus A220-300 (88.89% of total bookings). The next most popular plane model is Canadair (Bombardier) Regional Jet 900 (11.11%).

Best airlines flying from Montreal to Missouri

Compare and see reviews for airlines that fly from Montreal to Missouri with momondo

Airline	Rating	Free Cancellation	Price
Air Canada	PriceFrom C$ 592	Free Cancellation	Rating 7.1 10,971 reviews		Search Air Canada flights
WestJet	PriceFrom C$ 744	Free Cancellation	Rating 7.2 3,327 reviews		Search WestJet flights

Why use momondo?

Why should I use momondo to find a flight deal from Montreal to Missouri?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Montreal to Missouri . Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Montreal to Missouri with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Montreal to Missouri flights to just show those with flexible booking policies.

How can momondo help me find flights from Montreal to Missouri?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Montreal to Missouri.

I’m not ready to book a flight from Montreal to Missouri right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Missouri, momondo offers a useful price alert feature which will track prices for flights to Missouri from Montreal and alert you when they change.