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 Delta. There may also be other airline options depending on where in Canada you’re flying from.

Delta Flights to St. Louis

There are 21 Delta flights to St. Louis in a normal week. The most common departure point is New York LaGuardia and the best Delta ticket price seen on momondo is C$ 211 (last 72 hours, from Vancouver Intl, to St. Louis). Delta has a score of 7.8 from 8,586 user reviews on momondo.

WestJet Flights to St. Louis

WestJet flights to St. Louis can start from as low as C$ 426 (round-trip, from Halifax Intl, found in the last 72 hours). Over 32 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 3,446 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$ 238 Cheap Flights to St. Louis in 2026/27

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1:35 p.m. - 7:59 p.m.YVR Vancouver Intl-STL Lambert-St Louis

5h 24m1 stop Denver Intl

8:30 a.m. - 10:35 p.m.STL Lambert-St Louis-YVR Vancouver Intl

15h 05m1 stop San Francisco

C$ 445United Airlines

Thu, 14 Jan - Sun, 24 Jan

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

8h 20m1 stop Houston George Bush Intcntl

12:10 p.m. - 8:15 p.m.STL Lambert-St Louis-YVR Vancouver Intl

10h 05m1 stop Montreal Pierre Elliott Trudeau Intl

C$ 446Multiple Airlines

Sat, 10 Oct - Sat, 17 Oct

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

8h 20m1 stop Houston George Bush Intcntl

1:36 p.m. - 6:18 p.m.STL Lambert-St Louis-YVR Vancouver Intl

6h 42m1 stop Denver Intl

C$ 448United Airlines

Sat, 10 Oct - Sat, 17 Oct

1:35 p.m. - 10:59 p.m.YVR Vancouver Intl-STL Lambert-St Louis

8h 24m1 stop Seattle/Tacoma Intl

6:00 a.m. - 2:35 p.m.STL Lambert-St Louis-YVR Vancouver Intl

9h 35m1 stop Seattle/Tacoma Intl

C$ 453Alaska Airlines

Fri, 6 Nov - Sat, 14 Nov

2:20 p.m. - 11:46 p.m.YVR Vancouver Intl-STL Lambert-St Louis

8h 26m1 stop Salt Lake City

6:03 a.m. - 8:54 p.m.STL Lambert-St Louis-YVR Vancouver Intl

15h 51m2 stops Minneapolis St Paul Seattle/Tacoma Intl

C$ 518Delta

Thu, 3 Dec - Sun, 6 Dec

7:36 p.m. - 8:53 a.m.YVR Vancouver Intl-STL Lambert-St Louis

11h 17m2 stops Seattle/Tacoma Intl Minneapolis St Paul

12:28 p.m. - 8:33 p.m.STL Lambert-St Louis-YVR Vancouver Intl

10h 05m1 stop Minneapolis St Paul

C$ 520Delta

Mon, 26 Oct - Wed, 28 Oct

2:05 p.m. - 8:20 p.m.YHZ Halifax Intl-STL Lambert-St Louis

8h 15m1 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$ 547Air Canada

Tue, 20 Oct - Wed, 21 Oct

7:15 a.m. - 2:00 p.m.YHZ Halifax Intl-STL Lambert-St Louis

8h 45m2 stops Ottawa Toronto Pearson Intl

8:55 a.m. - 8:29 p.m.STL Lambert-St Louis-YHZ Halifax Intl

9h 34m2 stops Toronto Pearson Intl Ottawa

C$ 547Air Canada

Thu, 15 Oct - Mon, 19 Oct

1:27 p.m. - 12:51 a.m.YVR Vancouver Intl-STL Lambert-St Louis

9h 24m1 stop Salt Lake City

6:28 a.m. - 10:57 a.m.STL Lambert-St Louis-YVR Vancouver Intl

6h 29m1 stop Minneapolis St Paul

C$ 551WestJet

Sun, 18 Oct - Sat, 24 Oct

5:00 a.m. - 1:31 p.m.YVR Vancouver Intl-STL Lambert-St Louis

7h 31m2 stops Calgary Minneapolis St Paul

10:30 a.m. - 8:00 p.m.STL Lambert-St Louis-YVR Vancouver Intl

10h 30m2 stops Minneapolis St Paul Edmonton

C$ 650WestJet

Thu, 14 Jan - Sun, 24 Jan

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7:00 a.m. - 6:39 p.m.YVR Vancouver Intl-STL Lambert-St Louis

9h 39m1 stop San Francisco

5:10 a.m. - 6:18 p.m.STL Lambert-St Louis-YVR Vancouver Intl

15h 08m1 stop Denver Intl

C$ 532United Airlines

Wed, 23 Sep - Mon, 28 Sep

7:00 a.m. - 6:39 p.m.YVR Vancouver Intl-STL Lambert-St Louis

9h 39m1 stop San Francisco

4:39 p.m. - 10:48 a.m.STL Lambert-St Louis-YVR Vancouver Intl

20h 09m2 stops Denver Intl San Francisco

C$ 637United Airlines

Wed, 23 Sep - Mon, 28 Sep

3:30 p.m. - 8:35 p.m.YHZ Halifax Intl-STL Lambert-St Louis

7h 05m1 stop Detroit Metropolitan Wayne County

10:29 a.m. - 9:10 p.m.STL Lambert-St Louis-YHZ Halifax Intl

8h 41m1 stop Detroit Metropolitan Wayne County

C$ 723Delta

Mon, 21 Sep - Wed, 30 Sep

3:30 p.m. - 11:16 p.m.YHZ Halifax Intl-STL Lambert-St Louis

9h 46m2 stops Detroit Metropolitan Wayne County Minneapolis St Paul

6:15 a.m. - 9:10 p.m.STL Lambert-St Louis-YHZ Halifax Intl

12h 55m2 stops Minneapolis St Paul Detroit Metropolitan Wayne County

C$ 723Delta

Mon, 21 Sep - Wed, 30 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$ 835Air Canada

Tue, 22 Sep - Fri, 2 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$ 835Air Canada

Wed, 23 Sep - Wed, 30 Sep

6:30 a.m. - 10:18 a.m.YYZ Toronto Pearson Intl-STL Lambert-St Louis

4h 48m1 stop Chicago O'Hare Intl

7:21 a.m. - 12:35 p.m.STL Lambert-St Louis-YYZ Toronto Pearson Intl

4h 14m1 stop Chicago O'Hare Intl

C$ 842American Airlines

Wed, 23 Sep - Wed, 30 Sep

6:30 a.m. - 10:18 a.m.YYZ Toronto Pearson Intl-STL Lambert-St Louis

4h 48m1 stop Chicago O'Hare Intl

10:45 a.m. - 4:45 p.m.STL Lambert-St Louis-YYZ Toronto Pearson Intl

5h 00m1 stop Washington, D.C. Reagan-National

C$ 842American Airlines

Tue, 22 Sep - Thu, 1 Oct

8:15 p.m. - 11:17 a.m.YOW Ottawa-STL Lambert-St Louis

40h 02m2 stops Calgary Las Vegas Harry Reid Intl

6:39 p.m. - 2:30 p.m.STL Lambert-St Louis-YOW Ottawa

18h 51m1 stop Orlando

C$ 881Multiple Airlines

Wed, 23 Sep - Thu, 1 Oct

6:00 a.m. - 11:16 a.m.YUL Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis

6h 16m1 stop Newark

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

2h 31mdirect

C$ 967Multiple Airlines

Wed, 23 Sep - Sat, 26 Sep

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2:10 p.m. - 3:23 p.m.YYZ Toronto Pearson Intl-STL Lambert-St Louis

2h 13mdirect

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

2h 00mdirect

C$ 691Air Canada

Thu, 29 Oct - Thu, 5 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$ 706Air Canada

Fri, 6 Nov - Mon, 9 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$ 722Air Canada

Tue, 6 Oct - Thu, 8 Oct

2:10 p.m. - 3:23 p.m.YYZ Toronto Pearson Intl-STL Lambert-St Louis

2h 13mdirect

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

2h 00mdirect

C$ 741Air Canada

Fri, 30 Oct - Fri, 6 Nov

2:10 p.m. - 3:23 p.m.YYZ Toronto Pearson Intl-STL Lambert-St Louis

2h 13mdirect

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

2h 00mdirect

C$ 877United Airlines

Fri, 30 Oct - Fri, 6 Nov

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

2h 46mdirect

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

2h 31mdirect

C$ 883United Airlines

Tue, 13 Oct - Tue, 20 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$ 981United Airlines

Wed, 14 Oct - Wed, 21 Oct

7:15 p.m. - 8:20 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$ 1,032Multiple Airlines

Wed, 30 Sep - Sat, 3 Oct

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

2h 05mdirect

4:05 p.m. - 6:59 p.m.STL Lambert-St Louis-YYZ Toronto Pearson Intl

1h 54mdirect

C$ 1,034United Airlines

Thu, 22 Oct - Mon, 26 Oct

7:15 p.m. - 8:20 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$ 1,135Multiple Airlines

Wed, 30 Sep - Sat, 3 Oct

Fly from

Route

Depart

Return

Price

Cheapest round-trip

VancouverSt. Louis

YVR Vancouver Intl - STL Lambert-St Louis

YVRSTL

Vancouver Intl

Thu 14/1

1:35 p.m.-7:59 p.m.

1 stop5h 24m

Lambert-St Louis

Sun 24/1

8:30 a.m.-10:35 p.m.

1 stop15h 05m

C$ 445

VancouverSt. Louis

YVR Vancouver Intl - STL Lambert-St Louis

YVRSTL

Vancouver Intl

Sat 10/10

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

1 stop8h 20m

Lambert-St Louis

Sat 17/10

12:10 p.m.-8:15 p.m.

1 stop10h 05m

C$ 446

VancouverSt. Louis

YVR Vancouver Intl - STL Lambert-St Louis

YVRSTL

Vancouver Intl

Sat 10/10

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

1 stop8h 20m

Lambert-St Louis

Sat 17/10

1:36 p.m.-6:18 p.m.

1 stop6h 42m

C$ 448

VancouverSt. Louis

YVR Vancouver Intl - STL Lambert-St Louis

YVRSTL

Vancouver Intl

Fri 6/11

1:35 p.m.-10:59 p.m.

1 stop8h 24m

Lambert-St Louis

Sat 14/11

6:00 a.m.-2:35 p.m.

1 stop9h 35m

C$ 453

VancouverSt. Louis

YVR Vancouver Intl - STL Lambert-St Louis

YVRSTL

Vancouver Intl

Thu 3/12

2:20 p.m.-11:46 p.m.

1 stop8h 26m

Lambert-St Louis

Sun 6/12

6:03 a.m.-8:54 p.m.

2 stops15h 51m

C$ 518

VancouverSt. Louis

YVR Vancouver Intl - STL Lambert-St Louis

YVRSTL

Vancouver Intl

Mon 26/10

7:36 p.m.-8:53 a.m.

2 stops11h 17m

Lambert-St Louis

Wed 28/10

12:28 p.m.-8:33 p.m.

1 stop10h 05m

C$ 520

Quickest round-trip

HalifaxSt. Louis

YHZ Halifax Intl - STL Lambert-St Louis

YHZSTL

Halifax Intl

Tue 20/10

2:05 p.m.-8:20 p.m.

1 stop8h 15m

Lambert-St Louis

Wed 21/10

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

1 stop5h 14m

C$ 547

HalifaxSt. Louis

YHZ Halifax Intl - STL Lambert-St Louis

YHZSTL

Halifax Intl

Thu 15/10

7:15 a.m.-2:00 p.m.

2 stops8h 45m

Lambert-St Louis

Mon 19/10

8:55 a.m.-8:29 p.m.

2 stops9h 34m

C$ 547

VancouverSt. Louis

YVR Vancouver Intl - STL Lambert-St Louis

YVRSTL

Vancouver Intl

Sun 18/10

1:27 p.m.-12:51 a.m.

1 stop9h 24m

Lambert-St Louis

Sat 24/10

6:28 a.m.-10:57 a.m.

1 stop6h 29m

C$ 551

VancouverSt. Louis

YVR Vancouver Intl - STL Lambert-St Louis

YVRSTL

Vancouver Intl

Thu 14/1

5:00 a.m.-1:31 p.m.

2 stops7h 31m

Lambert-St Louis

Sun 24/1

10:30 a.m.-8:00 p.m.

2 stops10h 30m

C$ 650

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 January is, on average, the cheapest month to fly to St. Louis from Canada, with most prices found around C$ 553. If you don’t want to visit St. Louis in January, then you should wait until February to fly from Canada, when ticket prices are also cheap, with an average price of C$ 576.

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 Saturday is the least expensive day to fly to St. Louis. Tickets to fly out on this day can be as low as C$ 593. The most expensive day to fly to St. Louis is Monday, with ticket prices averaging around C$ 851.

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$ 660. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are C$ 1,011 on average. Flights to St. Louis from Canada in the evening 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$ 723 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$ 502 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	19% cheaper	Flying from Toronto Pearson Intl Airport to St. Louis costs on average just C$ 590 in January
MOST EXPENSIVE MONTH TO FLY TO ST. LOUIS FROM TORONTO PEARSON INTL AIRPORT	April	54% more expensive	It costs about C$ 1,121 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	246% 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$ 238
Best Round-Trip Price	C$ 445
Fastest flight time	8h 20m
Popular in	December

The best one-way flight price to St. Louis from Canada in the last 5 days is C$ 238 (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$ 445 (Vancouver Intl to Lambert-St Louis).

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The fastest flight to St. Louis from Canada takes 8h 20m (Vancouver Intl to Lambert-St Louis).

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December has the highest demand for flights to St. Louis, with a 21% 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 September 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.

St. Charles

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$ 475

Montreal to Lambert-St Louis Flightsfrom C$ 522

Vancouver to Lambert-St Louis Flightsfrom C$ 319

Ottawa to Lambert-St Louis Flightsfrom C$ 535

Calgary to Lambert-St Louis Flightsfrom C$ 409

Québec City to Lambert-St Louis Flightsfrom C$ 682

Edmonton to Lambert-St Louis Flightsfrom C$ 684

Halifax Intl to Lambert-St Louis Flightsfrom C$ 438

Victoria Intl to Lambert-St Louis Flightsfrom C$ 615

Saskatoon to Lambert-St Louis Flightsfrom C$ 1,047

Charlottetown Alexander B. Campbell to Lambert-St Louis Flightsfrom C$ 814

C$ 238 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 29/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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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

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Cheap St. Louis flight deals and tips

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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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