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 55% 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 May 2026, there are 5 flights per day flying from Canada to St. Louis. The most common time of day flights depart is 6:00p.m., with 77% of flights taking off in the evening.

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 05m on average. On the other hand, flying from Montreal to St. Louis takes 2h 46m 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?

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

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

As of May 2026, 38 flights take off from Canada and land in St. Louis each week. The most common flight departure day for this route is Mon, with 16% 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 May 2026.

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$ 207 Cheap Flights from Canada to St. Louis in 2026

1 adult

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Canada to St. Louis

Round-trip

One-way

Last minute

Direct

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

Enter your travel dates to find the best prices.

3:35 p.m. - 11:50 p.m.

YVR

STL

6h 15m

1 stop

5:18 p.m. - 10:24 p.m.

STL

YVR

7h 06m

1 stop

C$ 411United Airlines

Tue, 22 Sep - Sat, 26 Sep

7:00 a.m. - 12:06 p.m.

YHZ

STL

7h 06m

1 stop

7:05 a.m. - 5:09 p.m.

STL

YHZ

8h 04m

1 stop

C$ 425Air Canada

Thu, 21 May - Wed, 27 May

3:35 p.m. - 11:50 p.m.

YVR

STL

6h 15m

1 stop

7:00 a.m. - 8:49 p.m.

STL

YVR

15h 49m

1 stop

C$ 425United Airlines

Tue, 22 Sep - Sat, 26 Sep

7:00 a.m. - 12:06 p.m.

YHZ

STL

7h 06m

1 stop

7:05 a.m. - 11:56 p.m.

STL

YHZ

14h 51m

2 stops

C$ 436Air Canada

Thu, 21 May - Wed, 27 May

2:55 p.m. - 10:24 p.m.

YHZ

STL

9h 29m

1 stop

6:00 a.m. - 2:10 p.m.

STL

YHZ

6h 10m

1 stop

C$ 459American Airlines

Mon, 21 Sep - Wed, 30 Sep

3:13 p.m. - 12:16 a.m.

YYZ

STL

10h 03m

1 stop

2:32 p.m. - 11:29 p.m.

STL

YYZ

7h 57m

1 stop

C$ 468American Airlines

Tue, 16 Jun - Tue, 23 Jun

3:30 p.m. - 9:29 a.m.

YHZ

STL

19h 59m

1 stop

6:04 p.m. - 9:45 p.m.

STL

YHZ

25h 41m

1 stop

C$ 498WestJet

Thu, 21 May - Wed, 27 May

1:30 p.m. - 11:59 p.m.

YHZ

STL

12h 29m

2 stops

6:04 p.m. - 9:45 p.m.

STL

YHZ

25h 41m

1 stop

C$ 500WestJet

Thu, 21 May - Wed, 27 May

2:45 p.m. - 11:23 p.m.

YVR

STL

6h 38m

1 stop

8:00 a.m. - 3:29 p.m.

STL

YVR

9h 29m

1 stop

C$ 539Delta

Fri, 12 Jun - Sat, 20 Jun

2:45 p.m. - 11:23 p.m.

YVR

STL

6h 38m

1 stop

8:00 a.m. - 3:29 p.m.

STL

YVR

9h 29m

1 stop

C$ 541Delta

Fri, 12 Jun - Sat, 20 Jun

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Delta flights from Canada to St. Louis

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

Delta

25 Aug

YHZ6:30 a.m.Halifax Intl

7h 17m

1 stop

STL11:47 a.m.Lambert-St Louis

26 Aug

STL12:30 p.m.Lambert-St Louis

8h 48m

1 stop

YHZ11:18 p.m.Halifax Intl

C$ 508

Delta

12 Jun

YVR2:45 p.m.Vancouver Intl

6h 38m

1 stop

STL11:23 p.m.Lambert-St Louis

20 Jun

STL8:00 a.m.Lambert-St Louis

9h 29m

1 stop

YVR3:29 p.m.Vancouver Intl

C$ 539

Delta

12 Jun

YVR2:45 p.m.Vancouver Intl

6h 38m

1 stop

STL11:23 p.m.Lambert-St Louis

20 Jun

STL8:00 a.m.Lambert-St Louis

9h 29m

1 stop

YVR3:29 p.m.Vancouver Intl

C$ 541

Air Canada flights from Canada to St. Louis

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

Air Canada

21 May

YHZ7:00 a.m.Halifax Intl

7h 06m

1 stop

STL12:06 p.m.Lambert-St Louis

27 May

STL7:05 a.m.Lambert-St Louis

8h 04m

1 stop

YHZ5:09 p.m.Halifax Intl

C$ 425

Air Canada

21 May

YHZ7:00 a.m.Halifax Intl

7h 06m

1 stop

STL12:06 p.m.Lambert-St Louis

27 May

STL7:05 a.m.Lambert-St Louis

14h 51m

2 stops

YHZ11:56 p.m.Halifax Intl

C$ 436

Air Canada

30 May

YHZ6:50 a.m.Halifax Intl

7h 16m

1 stop

STL12:06 p.m.Lambert-St Louis

3 Jun

STL2:15 p.m.Lambert-St Louis

7h 56m

2 stops

YHZ12:11 a.m.Halifax Intl

C$ 458

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

VancouverSt. Louis

YVR - STL

YVRSTL

Vancouver Intl

Tue 22/9

3:35 p.m.-11:50 p.m.

1 stop6h 15m

Lambert-St Louis

Sat 26/9

5:18 p.m.-10:24 p.m.

1 stop7h 06m

C$ 411

HalifaxSt. Louis

YHZ - STL

YHZSTL

Halifax Intl

Thu 21/5

7:00 a.m.-12:06 p.m.

1 stop7h 06m

Lambert-St Louis

Wed 27/5

7:05 a.m.-5:09 p.m.

1 stop8h 04m

C$ 425

VancouverSt. Louis

YVR - STL

YVRSTL

Vancouver Intl

Tue 22/9

3:35 p.m.-11:50 p.m.

1 stop6h 15m

Lambert-St Louis

Sat 26/9

7:00 a.m.-8:49 p.m.

1 stop15h 49m

C$ 425

HalifaxSt. Louis

YHZ - STL

YHZSTL

Halifax Intl

Thu 21/5

7:00 a.m.-12:06 p.m.

1 stop7h 06m

Lambert-St Louis

Wed 27/5

7:05 a.m.-11:56 p.m.

2 stops14h 51m

C$ 436

HalifaxSt. Louis

YHZ - STL

YHZSTL

Halifax Intl

Mon 21/9

2:55 p.m.-10:24 p.m.

1 stop9h 29m

Lambert-St Louis

Wed 30/9

6:00 a.m.-2:10 p.m.

1 stop6h 10m

C$ 459

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Tue 16/6

3:13 p.m.-12:16 a.m.

1 stop10h 03m

Lambert-St Louis

Tue 23/6

2:32 p.m.-11:29 p.m.

1 stop7h 57m

C$ 468

HalifaxSt. Louis

YHZ - STL

YHZSTL

Halifax Intl

Thu 21/5

3:30 p.m.-9:29 a.m.

1 stop19h 59m

Lambert-St Louis

Wed 27/5

6:04 p.m.-9:45 p.m.

1 stop25h 41m

C$ 498

HalifaxSt. Louis

YHZ - STL

YHZSTL

Halifax Intl

Thu 21/5

1:30 p.m.-11:59 p.m.

2 stops12h 29m

Lambert-St Louis

Wed 27/5

6:04 p.m.-9:45 p.m.

1 stop25h 41m

C$ 500

VancouverSt. Louis

YVR - STL

YVRSTL

Vancouver Intl

Fri 12/6

2:45 p.m.-11:23 p.m.

1 stop6h 38m

Lambert-St Louis

Sat 20/6

8:00 a.m.-3:29 p.m.

1 stop9h 29m

C$ 539

VancouverSt. Louis

YVR - STL

YVRSTL

Vancouver Intl

Fri 12/6

2:45 p.m.-11:23 p.m.

1 stop6h 38m

Lambert-St Louis

Sat 20/6

8:00 a.m.-3:29 p.m.

1 stop9h 29m

C$ 541

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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 August is, on average, the cheapest month to fly to St. Louis from Canada, with most prices found around C$ 210. If you don’t want to visit St. Louis in August, then you should wait until December to fly from Canada, when ticket prices are also cheap, with an average price of C$ 229.

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

Our data shows that Saturday is the least expensive day to fly to St. Louis. Tickets to fly out on this day can be as low as C$ 575. The most expensive day to fly to St. Louis is Monday, with ticket prices averaging around C$ 974.

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$ 571. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are C$ 707 on average. Flights to St. Louis from Canada in the afternoon 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 Toronto Pearson 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$ 667 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$ 489 on momondo.

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

You could potentially save up to 25% 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$ 322
Fastest flight time	2h 05m
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$ 322. The best round-trip flight deal from Canada to St. Louis found on momondo in the last 72 hours is C$ 655.

The fastest flight from Canada to St. Louis takes 2h 05m

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

Frequently asked questions about flying from Canada to St. Louis

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 May 2026.
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 42.03% of the total bookings. Other popular models include Airbus A220-300 with 25.36%, Canadair (Bombardier) Regional Jet 900 with 20.29%, and Airbus A319 with 4.35%.

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$ 210	Free Cancellation	Rating 7.1 11,000 reviews	Search Air Canada flights
American Airlines	PriceFrom C$ 271	Free Cancellation	Rating 7.1 11,668 reviews	Search American Airlines flights
Delta	PriceFrom C$ 312	Free Cancellation	Rating 7.9 8,458 reviews	Search Delta flights
United Airlines	PriceFrom C$ 333	Free Cancellation	Rating 7.4 9,684 reviews	Search United Airlines flights
WestJet	PriceFrom C$ 549	Free Cancellation	Rating 7.2 3,331 reviews	Search WestJet flights

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.

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Cheap flights from Canada to St. Louis from C$ 207

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 6/9. 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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Delta flights from Canada to St. Louis

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

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

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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?

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

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?

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

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

What is the cheapest airline that flies 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?

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

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

Frequently asked questions about flying 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

Why use momondo?

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

Fly your favourite airline to St. Louis

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