Which airlines fly to St. Louis?

Based on our data, the most popular airlines that fly to St. Louis from Canada are Air Canada, United Airlines, WestJet and American Airlines. There may also be other airline options depending on where in Canada you’re flying from.

Delta Flights to St. Louis

There are 25 Delta flights to St. Louis in a normal week. The most common departure point is Minneapolis St Paul and the best Delta ticket price seen on momondo is C$ 210 (last 72 hours, from Vancouver Intl, to St. Louis). Delta has a score of 7.8 from 8,541 user reviews on momondo.

WestJet Flights to St. Louis

WestJet flights to St. Louis can start from as low as C$ 424 (round-trip, from Halifax Intl, found in the last 72 hours). Over 26 flights that WestJet operates to St. Louis in a normal week, prices can vary significantly. The most popular WestJet flight to St. Louis is from Atlanta Hartsfield-Jackson. WestJet has been rated 7.2/10 by momondo users, in 3,441 reviews.

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 Pearson Intl to Lambert-St Louis takes 2h 05m on average. On the other hand, flying from Vancouver Intl to Lambert-St Louis takes 5h 24m 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.

C$ 222 Cheap Flights to St. Louis in 2026

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12:20 a.m. - 1:10 p.m.YYC Calgary-STL Lambert-St Louis

11h 50m1 stop Atlanta Hartsfield-Jackson

2:29 p.m. - 9:50 p.m.STL Lambert-St Louis-YYC Calgary

8h 21m1 stop Atlanta Hartsfield-Jackson

C$ 367Multiple Airlines

Thu, 24 Sep - Mon, 28 Sep

12:10 p.m. - 10:30 p.m.YVR Vancouver Intl-STL Lambert-St Louis

8h 20m1 stop Houston George Bush Intcntl

5:36 p.m. - 10:26 p.m.STL Lambert-St Louis-YVR Vancouver Intl

6h 50m1 stop Chicago O'Hare Intl

C$ 413United Airlines

Fri, 9 Oct - Fri, 16 Oct

12:20 a.m. - 1:10 p.m.YYC Calgary-STL Lambert-St Louis

11h 50m1 stop Atlanta Hartsfield-Jackson

6:35 p.m. - 11:00 a.m.STL Lambert-St Louis-YYC Calgary

17h 25m1 stop Atlanta Hartsfield-Jackson

C$ 418Multiple Airlines

Tue, 6 Oct - Wed, 14 Oct

12:10 p.m. - 10:30 p.m.YVR Vancouver Intl-STL Lambert-St Louis

8h 20m1 stop Houston George Bush Intcntl

7:08 a.m. - 4:23 p.m.STL Lambert-St Louis-YVR Vancouver Intl

11h 15m1 stop San Francisco

C$ 421United Airlines

Thu, 24 Sep - Mon, 28 Sep

1:40 p.m. - 12:27 a.m.YVR Vancouver Intl-STL Lambert-St Louis

8h 47m1 stop Chicago O'Hare Intl

5:40 a.m. - 10:53 a.m.STL Lambert-St Louis-YVR Vancouver Intl

7h 13m1 stop Dallas/Fort Worth

C$ 427American Airlines

Sat, 3 Oct - Sat, 10 Oct

1:23 p.m. - 12:44 a.m.YVR Vancouver Intl-STL Lambert-St Louis

9h 21m1 stop Salt Lake City

11:21 a.m. - 8:26 p.m.STL Lambert-St Louis-YVR Vancouver Intl

11h 05m1 stop Minneapolis St Paul

C$ 430Delta

Thu, 24 Sep - Mon, 28 Sep

1:20 p.m. - 12:44 a.m.YVR Vancouver Intl-STL Lambert-St Louis

9h 24m1 stop Salt Lake City

7:45 a.m. - 12:15 p.m.STL Lambert-St Louis-YVR Vancouver Intl

6h 30m1 stop Salt Lake City

C$ 455Delta

Sun, 11 Oct - Sun, 18 Oct

6:30 a.m. - 4:48 p.m.YYZ Toronto Pearson Intl-STL Lambert-St Louis

11h 18m1 stop Chicago O'Hare Intl

5:00 a.m. - 2:32 p.m.STL Lambert-St Louis-YYZ Toronto Pearson Intl

8h 32m1 stop Chicago O'Hare Intl

C$ 462American Airlines

Tue, 22 Sep - Thu, 24 Sep

9:00 a.m. - 2:00 p.m.YHZ Halifax Intl-STL Lambert-St Louis

7h 00m1 stop Toronto Pearson Intl

2:40 p.m. - 9:54 p.m.STL Lambert-St Louis-YHZ Halifax Intl

5h 14m1 stop Toronto Pearson Intl

C$ 513Air Canada

Sat, 26 Sep - Wed, 30 Sep

10:10 p.m. - 8:20 p.m.YVR Vancouver Intl-STL Lambert-St Louis

20h 10m2 stops Winnipeg Toronto Pearson Intl

12:10 p.m. - 12:05 a.m.STL Lambert-St Louis-YVR Vancouver Intl

13h 55m1 stop Montreal Pierre Elliott Trudeau Intl

C$ 541Air Canada

Wed, 23 Sep - Wed, 30 Sep

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1:20 p.m. - 12:41 a.m.YVR Vancouver Intl-STL Lambert-St Louis

9h 21m1 stop Salt Lake City

11:13 a.m. - 8:32 p.m.STL Lambert-St Louis-YVR Vancouver Intl

11h 19m1 stop Minneapolis St Paul

C$ 564Delta

Fri, 4 Sep - Mon, 7 Sep

1:20 p.m. - 12:41 a.m.YVR Vancouver Intl-STL Lambert-St Louis

9h 21m1 stop Salt Lake City

6:20 a.m. - 10:50 a.m.STL Lambert-St Louis-YVR Vancouver Intl

6h 30m1 stop Minneapolis St Paul

C$ 564Delta

Fri, 4 Sep - Mon, 7 Sep

8:35 a.m. - 4:34 p.m.YVR Vancouver Intl-STL Lambert-St Louis

5h 59m1 stop Denver Intl

8:42 a.m. - 11:22 p.m.STL Lambert-St Louis-YVR Vancouver Intl

16h 40m1 stop San Francisco

C$ 605United Airlines

Thu, 3 Sep - Thu, 10 Sep

10:55 a.m. - 11:31 p.m.YVR Vancouver Intl-STL Lambert-St Louis

10h 36m1 stop Denver Intl

1:36 p.m. - 10:26 p.m.STL Lambert-St Louis-YVR Vancouver Intl

10h 50m2 stops Denver Intl Los Angeles Los Angeles

C$ 605United Airlines

Thu, 3 Sep - Thu, 10 Sep

6:10 a.m. - 9:37 a.m.YYZ Toronto Pearson Intl-STL Lambert-St Louis

4h 27m1 stop Detroit Metropolitan Wayne County

2:00 p.m. - 9:55 p.m.STL Lambert-St Louis-YYZ Toronto Pearson Intl

30h 55m2 stops Jonesboro Nashville Intl

C$ 742Multiple Airlines

Wed, 2 Sep - Wed, 9 Sep

6:10 a.m. - 9:37 a.m.YYZ Toronto Pearson Intl-STL Lambert-St Louis

4h 27m1 stop Detroit Metropolitan Wayne County

2:00 p.m. - 9:55 p.m.STL Lambert-St Louis-YYZ Toronto Pearson Intl

30h 55m2 stops Jonesboro Nashville Intl

C$ 742Multiple Airlines

Thu, 3 Sep - Wed, 9 Sep

8:25 p.m. - 9:20 a.m.YVR Vancouver Intl-STL Lambert-St Louis

10h 55m2 stops Calgary Atlanta Hartsfield-Jackson

11:13 a.m. - 7:10 p.m.STL Lambert-St Louis-YVR Vancouver Intl

9h 57m2 stops Minneapolis St Paul Edmonton

C$ 868WestJet

Wed, 2 Sep - Mon, 7 Sep

2:46 p.m. - 11:21 p.m.YUL Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis

9h 35m1 stop Atlanta Hartsfield-Jackson

5:46 p.m. - 11:50 p.m.STL Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl

5h 04m1 stop Atlanta Hartsfield-Jackson

C$ 898WestJet

Tue, 1 Sep - Tue, 8 Sep

12:55 p.m. - 2:02 p.m.YYZ Toronto Pearson Intl-STL Lambert-St Louis

2h 07mdirect

2:40 p.m. - 5:34 p.m.STL Lambert-St Louis-YYZ Toronto Pearson Intl

1h 54mdirect

C$ 1,040Air Canada

Wed, 2 Sep - Tue, 29 Sep

12:55 p.m. - 2:02 p.m.YYZ Toronto Pearson Intl-STL Lambert-St Louis

2h 07mdirect

8:55 a.m. - 11:49 a.m.STL Lambert-St Louis-YYZ Toronto Pearson Intl

1h 54mdirect

C$ 1,044Air Canada

Thu, 3 Sep - Thu, 24 Sep

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12:55 p.m. - 2:00 p.m.YYZ Toronto Pearson Intl-STL Lambert-St Louis

2h 05mdirect

2:40 p.m. - 5:34 p.m.STL Lambert-St Louis-YYZ Toronto Pearson Intl

1h 54mdirect

C$ 692Air Canada

Thu, 1 Oct - Tue, 13 Oct

7:15 p.m. - 8:20 p.m.YYZ Toronto Pearson Intl-STL Lambert-St Louis

2h 05mdirect

8:55 a.m. - 11:49 a.m.STL Lambert-St Louis-YYZ Toronto Pearson Intl

1h 54mdirect

C$ 692Air Canada

Thu, 24 Sep - Thu, 1 Oct

2:10 p.m. - 3:26 p.m.YYZ Toronto Pearson Intl-STL Lambert-St Louis

2h 16mdirect

4:05 p.m. - 7:05 p.m.STL Lambert-St Louis-YYZ Toronto Pearson Intl

2h 00mdirect

C$ 692Air Canada

Mon, 23 Nov - Sat, 28 Nov

2:10 p.m. - 3:26 p.m.YYZ Toronto Pearson Intl-STL Lambert-St Louis

2h 16mdirect

4:05 p.m. - 7:05 p.m.STL Lambert-St Louis-YYZ Toronto Pearson Intl

2h 00mdirect

C$ 692Air Canada

Tue, 24 Nov - Sat, 28 Nov

12:55 p.m. - 2:00 p.m.YYZ Toronto Pearson Intl-STL Lambert-St Louis

2h 05mdirect

8:55 a.m. - 11:49 a.m.STL Lambert-St Louis-YYZ Toronto Pearson Intl

1h 54mdirect

C$ 692Air Canada

Thu, 1 Oct - Sun, 11 Oct

12:55 p.m. - 2:00 p.m.YYZ Toronto Pearson Intl-STL Lambert-St Louis

2h 05mdirect

2:40 p.m. - 5:34 p.m.STL Lambert-St Louis-YYZ Toronto Pearson Intl

1h 54mdirect

C$ 916United Airlines

Sat, 10 Oct - Sat, 17 Oct

12:55 p.m. - 2:00 p.m.YYZ Toronto Pearson Intl-STL Lambert-St Louis

2h 05mdirect

2:40 p.m. - 5:34 p.m.STL Lambert-St Louis-YYZ Toronto Pearson Intl

1h 54mdirect

C$ 916United Airlines

Tue, 22 Sep - Tue, 29 Sep

7:15 p.m. - 8:20 p.m.YYZ Toronto Pearson Intl-STL Lambert-St Louis

2h 05mdirect

8:55 a.m. - 11:49 a.m.STL Lambert-St Louis-YYZ Toronto Pearson Intl

1h 54mdirect

C$ 1,077Multiple Airlines

Wed, 16 Sep - Sun, 20 Sep

12:55 p.m. - 2:00 p.m.YYZ Toronto Pearson Intl-STL Lambert-St Louis

2h 05mdirect

8:55 a.m. - 11:49 a.m.STL Lambert-St Louis-YYZ Toronto Pearson Intl

1h 54mdirect

C$ 1,123United Airlines

Sun, 4 Oct - Wed, 7 Oct

12:55 p.m. - 2:00 p.m.YYZ Toronto Pearson Intl-STL Lambert-St Louis

2h 05mdirect

8:55 a.m. - 11:49 a.m.STL Lambert-St Louis-YYZ Toronto Pearson Intl

1h 54mdirect

C$ 1,123United Airlines

Sun, 4 Oct - Tue, 6 Oct

Fly from

Route

Depart

Return

Price

Cheapest round-trip

CalgarySt. Louis

YYC Calgary - STL Lambert-St Louis

YYCSTL

Calgary

Thu 24/9

12:20 a.m.-1:10 p.m.

1 stop11h 50m

Lambert-St Louis

Mon 28/9

2:29 p.m.-9:50 p.m.

1 stop8h 21m

C$ 367

VancouverSt. Louis

YVR Vancouver Intl - STL Lambert-St Louis

YVRSTL

Vancouver Intl

Fri 9/10

12:10 p.m.-10:30 p.m.

1 stop8h 20m

Lambert-St Louis

Fri 16/10

5:36 p.m.-10:26 p.m.

1 stop6h 50m

C$ 413

CalgarySt. Louis

YYC Calgary - STL Lambert-St Louis

YYCSTL

Calgary

Tue 6/10

12:20 a.m.-1:10 p.m.

1 stop11h 50m

Lambert-St Louis

Wed 14/10

6:35 p.m.-11:00 a.m.

1 stop17h 25m

C$ 418

VancouverSt. Louis

YVR Vancouver Intl - STL Lambert-St Louis

YVRSTL

Vancouver Intl

Thu 24/9

12:10 p.m.-10:30 p.m.

1 stop8h 20m

Lambert-St Louis

Mon 28/9

7:08 a.m.-4:23 p.m.

1 stop11h 15m

C$ 421

VancouverSt. Louis

YVR Vancouver Intl - STL Lambert-St Louis

YVRSTL

Vancouver Intl

Sat 3/10

1:40 p.m.-12:27 a.m.

1 stop8h 47m

Lambert-St Louis

Sat 10/10

5:40 a.m.-10:53 a.m.

1 stop7h 13m

C$ 427

VancouverSt. Louis

YVR Vancouver Intl - STL Lambert-St Louis

YVRSTL

Vancouver Intl

Thu 24/9

1:23 p.m.-12:44 a.m.

1 stop9h 21m

Lambert-St Louis

Mon 28/9

11:21 a.m.-8:26 p.m.

1 stop11h 05m

C$ 430

VancouverSt. Louis

YVR Vancouver Intl - STL Lambert-St Louis

YVRSTL

Vancouver Intl

Sun 11/10

1:20 p.m.-12:44 a.m.

1 stop9h 24m

Lambert-St Louis

Sun 18/10

7:45 a.m.-12:15 p.m.

1 stop6h 30m

C$ 455

TorontoSt. Louis

YYZ Toronto Pearson Intl - STL Lambert-St Louis

YYZSTL

Toronto Pearson Intl

Tue 22/9

6:30 a.m.-4:48 p.m.

1 stop11h 18m

Lambert-St Louis

Thu 24/9

5:00 a.m.-2:32 p.m.

1 stop8h 32m

C$ 462

Quickest round-trip

HalifaxSt. Louis

YHZ Halifax Intl - STL Lambert-St Louis

YHZSTL

Halifax Intl

Sat 26/9

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

1 stop7h 00m

Lambert-St Louis

Wed 30/9

2:40 p.m.-9:54 p.m.

1 stop5h 14m

C$ 513

VancouverSt. Louis

YVR Vancouver Intl - STL Lambert-St Louis

YVRSTL

Vancouver Intl

Wed 23/9

10:10 p.m.-8:20 p.m.

2 stops20h 10m

Lambert-St Louis

Wed 30/9

12:10 p.m.-12:05 a.m.

1 stop13h 55m

C$ 541

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

St. Louis flights insights and trends

Explore insights for your St. Louis flight to craft the best travel plan

Prices

Other information

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

The month of October is, on average, the cheapest month to fly to St. Louis from Canada, with most prices found around C$ 542. If you don’t want to visit St. Louis in October, then you should wait until January to fly from Canada, when ticket prices are also cheap, with an average price of C$ 549.

What is the absolute cheapest flight to St. Louis?

See prices from:

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

Our data shows that Wednesday is the least expensive day to fly to St. Louis. Tickets to fly out on this day can be as low as C$ 623. The most expensive day to fly to St. Louis is Monday, with ticket prices averaging around C$ 846.

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 at noon when flights can be purchased for as low as C$ 637. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are C$ 995 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.

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$ 710 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$ 499 on momondo.

Cheapest flights to Lambert-St Louis

Find the cheapest flights to Lambert-St Louis from your nearest city or airport

Find Flights from Toronto Pearson Intl Airport to St. Louis

CHEAPEST MONTH TO FLY TO ST. LOUIS FROM TORONTO PEARSON INTL AIRPORT	January	18% cheaper	Flying from Toronto Pearson Intl Airport to St. Louis costs on average just C$ 587 in January
MOST EXPENSIVE MONTH TO FLY TO ST. LOUIS FROM TORONTO PEARSON INTL AIRPORT	April	56% more expensive	It costs about C$ 1,114 for flights to St. Louis from Toronto Pearson Intl Airport in April
MOST POPULAR MONTH TO FLY TO ST. LOUIS FROM TORONTO PEARSON INTL AIRPORT	October	262% more users visited	More momondo users searched in flights to St. Louis from Toronto Pearson Intl Airport in October than any other month

Cheap St. Louis flight deals and tips

Summary info about St. Louis flight prices, duration and airlines

Best One-Way Price	C$ 222
Best Round-Trip Price	C$ 367
Fastest flight time	4h 39m
Popular in	August

The best one-way flight price to St. Louis from Canada in the last 5 days is C$ 222 (Calgary to Lambert-St Louis).

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The best round-trip flight price to St. Louis from Canada in the last 5 days is C$ 367 (Calgary to Lambert-St Louis).

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The fastest flight to St. Louis from Canada takes 4h 39m (Ottawa to Lambert-St Louis).

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August has the highest demand for flights to St. Louis, with a 13% price increase on average.

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Frequently asked questions about flying to St. Louis

Is there an alternative airport near St. Louis?

Belleville Airport, Marion Williamson County Airport or Springfield Capital Airport can be an alternative airport used for travel to St. Louis.

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

Prices for flights to Lambert-St Louis Airport were last updated today.

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

As of August 2026, there are 6 operators available to choose from for flights to Lambert-St Louis Airport.

How old do you have to be to fly 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 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.

Why use momondo?

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

It is quick and easy to find flights to St. Louis on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to St. Louis that suits you.

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

Yes. momondo enables you to select and highlight flights to St. Louis with this policy.

How can momondo help me find flights 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 to St. Louis.

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

Of course. momondo tracks the price of St. Louis flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Popular Flights to St. Louis

Toronto to Lambert-St Louis Flightsfrom C$ 374

Montreal to Lambert-St Louis Flightsfrom C$ 480

Vancouver to Lambert-St Louis Flightsfrom C$ 309

Ottawa to Lambert-St Louis Flightsfrom C$ 557

Calgary to Lambert-St Louis Flightsfrom C$ 371

Québec City to Lambert-St Louis Flightsfrom C$ 566

Edmonton to Lambert-St Louis Flightsfrom C$ 632

Halifax Intl to Lambert-St Louis Flightsfrom C$ 388

Victoria Intl to Lambert-St Louis Flightsfrom C$ 538

Saskatoon to Lambert-St Louis Flightsfrom C$ 755

Charlottetown to Lambert-St Louis Flightsfrom C$ 796

C$ 222 Cheap flights to St. Louis

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight to St. Louis departing on 24/9. 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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St. Louis flights insights and trends

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

What is the absolute cheapest flight to St. Louis?

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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?

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

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

Cheapest flights to Lambert-St Louis

Find the cheapest flights to Lambert-St Louis from your nearest city or airport

Cheap St. Louis flight deals and tips

Best One-Way Price

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Popular in

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Why use momondo?

An easier way to manage your Lambert-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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Popular Flights to St. Louis

Popular routes according to searches in the past day on momondo

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

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