How long does it take to fly to St. Louis?

Flight times vary depending on what airport in Canada you fly out of and what airport in St. Louis you fly into. For example, flying from Toronto to St. Louis takes 2h 14m on average. On the other hand, flying from Montreal to St. Louis takes 2h 55m on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo to see if there are any available for your route.

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

Delta, Alaska Airlines, and Air Canada are the most popular carriers operating from Canada to Lambert-St Louis

Which airlines fly to St. Louis?

Air Canada, United Airlines and WestJet are the top three most popular airlines that fly to St. Louis from Canada according to our data. Air Canada is the first choice among our users, with 58% of people opting to fly with this airline when travelling to St. Louis. Keep in mind that there are 5 different airlines that fly to St. Louis on a routine basis, so you have a few additional options to choose from.

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

As of December 2025, there are 2 flights per day flying from Canada to St. Louis. The most common time of day flights depart is 2:00p.m., with 100% of flights taking off in the afternoon.

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

As of December 2025, 14 flights take off from Canada and land in St. Louis each week. The most common flight departure day for this route is Mon, with 14% of weekly flights taking off on this day.

When did momondo last update prices for flights from Canada to Lambert-St Louis Airport?

Prices for flights from Canada to Lambert-St Louis Airport are updated daily.

How many operators does momondo search for flights from Canada to Lambert-St Louis Airport?

The number of operators available for flights from Canada to Lambert-St Louis Airport is 5 as of December 2025.

How old do you have to be to fly from Canada to Lambert-St Louis 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 Canada to Lambert-St Louis Airport.

What documentation or ID do you need to fly to Lambert-St Louis Airport?

The travel and health documents you'll need for your trip to Lambert-St Louis Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Lambert-St Louis Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

C$ 180 Cheap Flights from Canada to St. Louis in 2025/26

1 adult

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Find the cheapest flights from Canada to St. Louis

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9:45 p.m. - 6:51 a.m.

YYC

STL

32h 06m2 stops

8:22 p.m. - 11:43 a.m.

STL

YYC

16h 21m1 stop

C$ 299Multiple Airlines

Sat, 31 Jan - Sat, 7 Feb

7:15 a.m. - 11:33 p.m.

YYZ

STL

17h 18m1 stop

8:59 a.m. - 2:20 p.m.

STL

YYZ

28h 21m1 stop

C$ 304Multiple Airlines

Tue, 3 Feb - Sun, 8 Feb

9:00 a.m. - 3:29 p.m.

YHZ

STL

8h 29m1 stop

4:05 p.m. - 12:06 a.m.

STL

YHZ

6h 01m1 stop

C$ 382Air Canada

Tue, 27 Jan - Mon, 2 Feb

3:15 p.m. - 10:58 p.m.

YHZ

STL

9h 43m2 stops

6:40 p.m. - 2:31 p.m.

STL

YHZ

17h 51m2 stops

C$ 390United Airlines

Tue, 27 Jan - Mon, 2 Feb

6:55 a.m. - 3:29 p.m.

YHZ

STL

10h 34m2 stops

4:05 p.m. - 12:06 a.m.

STL

YHZ

6h 01m1 stop

C$ 394Air Canada

Tue, 27 Jan - Mon, 2 Feb

3:15 p.m. - 10:58 p.m.

YHZ

STL

9h 43m2 stops

4:49 p.m. - 2:31 p.m.

STL

YHZ

19h 42m2 stops

C$ 401United Airlines

Tue, 27 Jan - Mon, 2 Feb

1:21 p.m. - 11:25 p.m.

YVR

STL

8h 04m2 stops

2:22 p.m. - 9:00 p.m.

STL

YVR

8h 38m2 stops

C$ 438Delta

Wed, 7 Jan - Thu, 26 Feb

7:25 a.m. - 9:38 p.m.

YVR

STL

12h 13m2 stops

2:38 p.m. - 11:59 p.m.

STL

YVR

11h 21m2 stops

C$ 442Delta

Sat, 31 Jan - Sat, 7 Feb

6:00 a.m. - 8:06 p.m.

YHZ

STL

16h 06m2 stops

6:35 a.m. - 1:41 a.m.

STL

YHZ

17h 06m2 stops

C$ 481WestJet

Mon, 26 Jan - Wed, 28 Jan

6:00 a.m. - 8:06 p.m.

YHZ

STL

16h 06m2 stops

1:18 p.m. - 1:41 a.m.

STL

YHZ

10h 23m2 stops

C$ 503WestJet

Mon, 26 Jan - Wed, 28 Jan

Air Canada flights from Canada to St. Louis

Our best Air Canada deals on Canada to St. Louis flight tickets

Air Canada

27 Jan

YHZ9:00 a.m.Halifax Intl

8h 29m

1 stop

STL3:29 p.m.Lambert-St Louis

2 Feb

STL4:05 p.m.Lambert-St Louis

6h 01m

1 stop

YHZ12:06 a.m.Halifax Intl

C$ 382

Find similar

Air Canada

27 Jan

YHZ6:55 a.m.Halifax Intl

10h 34m

2 stops

STL3:29 p.m.Lambert-St Louis

2 Feb

STL4:05 p.m.Lambert-St Louis

6h 01m

1 stop

YHZ12:06 a.m.Halifax Intl

C$ 394

Find similar

Air Canada

27 Jan

YHZ6:55 a.m.Halifax Intl

10h 34m

2 stops

STL3:29 p.m.Lambert-St Louis

2 Feb

STL4:05 p.m.Lambert-St Louis

6h 01m

1 stop

YHZ12:06 a.m.Halifax Intl

C$ 406

Find similar

United Airlines flights from Canada to St. Louis

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

United Airlines

27 Jan

YHZ3:15 p.m.Halifax Intl

9h 43m

2 stops

STL10:58 p.m.Lambert-St Louis

2 Feb

STL6:40 p.m.Lambert-St Louis

17h 51m

2 stops

YHZ2:31 p.m.Halifax Intl

C$ 390

Find similar

United Airlines

27 Jan

YHZ3:15 p.m.Halifax Intl

9h 43m

2 stops

STL10:58 p.m.Lambert-St Louis

2 Feb

STL4:49 p.m.Lambert-St Louis

19h 42m

2 stops

YHZ2:31 p.m.Halifax Intl

C$ 401

Find similar

United Airlines

8 Jan

YOW9:45 a.m.Ottawa

14h 13m

2 stops

STL10:58 p.m.Lambert-St Louis

12 Jan

STL3:11 p.m.Lambert-St Louis

5h 07m

1 stop

YOW9:18 p.m.Ottawa

C$ 419

Find similar

Fly from

Fly to

Route

Depart

Return

Price

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Sat 31/1

9:45 p.m.-6:51 a.m.

2 stops32h 06m

Lambert-St Louis

Sat 7/2

8:22 p.m.-11:43 a.m.

1 stop16h 21m

C$ 299

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Tue 3/2

7:15 a.m.-11:33 p.m.

1 stop17h 18m

Lambert-St Louis

Sun 8/2

8:59 a.m.-2:20 p.m.

1 stop28h 21m

C$ 304

HalifaxSt. Louis

YHZ - STL

YHZSTL

Halifax Intl

Tue 27/1

9:00 a.m.-3:29 p.m.

1 stop8h 29m

Lambert-St Louis

Mon 2/2

4:05 p.m.-12:06 a.m.

1 stop6h 01m

C$ 382

HalifaxSt. Louis

YHZ - STL

YHZSTL

Halifax Intl

Tue 27/1

3:15 p.m.-10:58 p.m.

2 stops9h 43m

Lambert-St Louis

Mon 2/2

6:40 p.m.-2:31 p.m.

2 stops17h 51m

C$ 390

HalifaxSt. Louis

YHZ - STL

YHZSTL

Halifax Intl

Tue 27/1

6:55 a.m.-3:29 p.m.

2 stops10h 34m

Lambert-St Louis

Mon 2/2

4:05 p.m.-12:06 a.m.

1 stop6h 01m

C$ 394

HalifaxSt. Louis

YHZ - STL

YHZSTL

Halifax Intl

Tue 27/1

3:15 p.m.-10:58 p.m.

2 stops9h 43m

Lambert-St Louis

Mon 2/2

4:49 p.m.-2:31 p.m.

2 stops19h 42m

C$ 401

VancouverSt. Louis

YVR - STL

YVRSTL

Vancouver Intl

Wed 7/1

1:21 p.m.-11:25 p.m.

2 stops8h 04m

Lambert-St Louis

Thu 26/2

2:22 p.m.-9:00 p.m.

2 stops8h 38m

C$ 438

VancouverSt. Louis

YVR - STL

YVRSTL

Vancouver Intl

Sat 31/1

7:25 a.m.-9:38 p.m.

2 stops12h 13m

Lambert-St Louis

Sat 7/2

2:38 p.m.-11:59 p.m.

2 stops11h 21m

C$ 442

HalifaxSt. Louis

YHZ - STL

YHZSTL

Halifax Intl

Mon 26/1

6:00 a.m.-8:06 p.m.

2 stops16h 06m

Lambert-St Louis

Wed 28/1

6:35 a.m.-1:41 a.m.

2 stops17h 06m

C$ 481

HalifaxSt. Louis

YHZ - STL

YHZSTL

Halifax Intl

Mon 26/1

6:00 a.m.-8:06 p.m.

2 stops16h 06m

Lambert-St Louis

Wed 28/1

1:18 p.m.-1:41 a.m.

2 stops10h 23m

C$ 503

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 Canada to St. Louis

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 cheapest month to fly to St. Louis?

The month of June is, on average, the cheapest month to fly to St. Louis from Canada, with most prices found around C$ 513. If you don’t want to visit St. Louis in June, then you should wait until August to fly from Canada, when ticket prices are also cheap, with an average price of C$ 547.

What is the cheapest day to depart on your flight to St. Louis?

Our data shows that Thursday is the least expensive day to fly to St. Louis. Tickets to fly out on this day can be as low as C$ 559. The most expensive day to fly to St. Louis is Monday, with ticket prices averaging around C$ 763.

What is the cheapest time of day to depart on your flight to St. Louis?

The cheapest time of day to fly to St. Louis is in the morning when flights can be purchased for as low as C$ 539. If you have a flexible travel schedule, then try to avoid flying at noon when prices are C$ 663 on average. Flights to St. Louis from Canada at noon are generally more expensive because this time of day is more convenient for travellers’ schedules.

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

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

How far in advance should I book a flight to St. Louis?

You are more likely to see cheaper flights to St. Louis from Canada when booking weeks ahead of your departure date. In general, you can expect to find flights to St. Louis for around C$ 651 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to St. Louis from Canada for as low as C$ 496 on momondo.

What cabin class options are available on Canada to Lambert-St Louis flights?

There is only 1 cabin class available to choose from on Canada to Lambert-St Louis 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 Canada to St. Louis flights?

You could potentially save up to 41% on your flight if you consider stops on a Canada to St. Louis flight.

Cheap Canada to St. Louis flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Canada to St. Louis

Best price found	C$ 494
Fastest flight time	2h 06m
Direct flights	Every day
Airports in St. Louis	1 airport

The best one-way flight to St. Louis from Canada in the past 72 hours is C$ 494. The best round-trip flight deal from Canada to St. Louis found on momondo in the last 72 hours is C$ 476.

The fastest flight from Canada to St. Louis takes 2h 06m

Direct flights go from Canada to St. Louis every day.

There is 1 airport in St. Louis. From Canada there are direct flights to Lambert-St Louis (STL).

Search flight deals

When did momondo last update prices for flights from Canada to Lambert-St Louis Airport?
Prices for flights from Canada to Lambert-St Louis Airport are updated daily.
How many operators does momondo search for flights from Canada to Lambert-St Louis Airport?
The number of operators available for flights from Canada to Lambert-St Louis Airport is 5 as of December 2025.
How old do you have to be to fly from Canada to Lambert-St Louis 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 Canada to Lambert-St Louis Airport.
What documentation or ID do you need to fly to Lambert-St Louis Airport?
The travel and health documents you'll need for your trip to Lambert-St Louis Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Lambert-St Louis Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Canada to St. Louis?
Based on momondo bookings for flights between Canada and St. Louis, the leading plane model is Embraer 175, making up 59.26% of the total bookings. Other popular models include Canadair (Bombardier) Regional Jet 900 with 18.52%, Airbus A220-300 with 7.41%, and Airbus A319 with 5.56%.

Best airlines flying from Canada to St. Louis

Compare and see reviews for airlines that fly from Canada to St. Louis with momondo

Airline	Rating	Free Cancellation	Price
Air Canada	PriceFrom C$ 328	Free Cancellation	Rating 7.1 10,534 reviews	Search Air Canada flights
American Airlines	PriceFrom C$ 372	Free Cancellation	Rating 7.2 11,055 reviews	Search American Airlines flights
United Airlines	PriceFrom C$ 413	Free Cancellation	Rating 7.4 9,092 reviews	Search United Airlines flights
WestJet	PriceFrom C$ 461	Free Cancellation	Rating 7.2 3,204 reviews	Search WestJet flights
Delta	PriceFrom C$ 473	Free Cancellation	Rating 7.9 8,005 reviews	Search Delta flights

Chesterfield

Litchfield

Why use momondo?

Why should I use momondo to find a flight deal from Canada to St. Louis?

Finding the right flight to St. Louis from Canada is quick and easy when you have a range of options in front of you, from reputable agents and recognizable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to St. Louis quick and easy, saving you time and money.

Can I find flights from Canada to St. Louis with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Canada to St. Louis flights to just show those with flexible booking policies.

How can momondo help me find flights from Canada to St. Louis?

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 Canada to St. Louis.

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

Price alerts on flights to St. Louis from Canada are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your St. Louis 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.

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Cheap flights from Canada to St. Louis from C$ 180

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Canada to St. Louis departing on 12/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Big names, great deals

Filter for what you want

Filter for what you want

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Find the cheapest flights from Canada to St. Louis

Recent round-trip flight deals from Canada to St. Louis

Recent one-way flight deals from Canada to St. Louis

Recent last minute flight deals from Canada to St. Louis

Recent direct flight deals from Canada to St. Louis

Air Canada flights from Canada to St. Louis

Our best Air Canada deals on Canada to St. Louis flight tickets

United Airlines flights from Canada to St. Louis

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

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

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

What is the cheapest month to fly to St. Louis?

The month of June is, on average, the cheapest month to fly to St. Louis from Canada, with most prices found around C$ 513. If you don’t want to visit St. Louis in June, then you should wait until August to fly from Canada, when ticket prices are also cheap, with an average price of C$ 547.

What is the cheapest day to depart on your flight to St. Louis?

Our data shows that Thursday is the least expensive day to fly to St. Louis. Tickets to fly out on this day can be as low as C$ 559. The most expensive day to fly to St. Louis is Monday, with ticket prices averaging around C$ 763.

What is the cheapest time of day to depart on your flight to St. Louis?

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

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

How far in advance should I book a flight to St. Louis?

What cabin class options are available on Canada to Lambert-St Louis flights?

There is only 1 cabin class available to choose from on Canada to Lambert-St Louis 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 Canada to St. Louis flights?

You could potentially save up to 41% on your flight if you consider stops on a Canada to St. Louis flight.

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

Delta, Alaska Airlines, and Air Canada are the most popular carriers operating from Canada to Lambert-St Louis

Which airlines fly to St. Louis?

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

As of December 2025, there are 2 flights per day flying from Canada to St. Louis. The most common time of day flights depart is 2:00p.m., with 100% of flights taking off in the afternoon.

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

As of December 2025, 14 flights take off from Canada and land in St. Louis each week. The most common flight departure day for this route is Mon, with 14% of weekly flights taking off on this day.

How long does it take to fly to St. Louis?

Cheap Canada to St. Louis flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Canada to St. Louis

Best price found

Fastest flight time

Direct flights

Airports in St. Louis

When did momondo last update prices for flights from Canada to Lambert-St Louis Airport?

How many operators does momondo search for flights from Canada to Lambert-St Louis Airport?

How old do you have to be to fly from Canada to Lambert-St Louis Airport?

What documentation or ID do you need to fly to Lambert-St Louis Airport?

What is the most popular plane model from Canada to St. Louis?

Best airlines flying from Canada to St. Louis

Compare and see reviews for airlines that fly from Canada to St. Louis with momondo

Travelling to a place near St. Louis?

Why use momondo?

Why should I use momondo to find a flight deal from Canada to St. Louis?

Can I find flights from Canada to St. Louis with flexible booking policies on momondo?

How can momondo help me find flights from Canada to St. Louis?

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

An easier way to manage your St. Louis 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 the United States

Airports servicing Missouri