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 19 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$ 209 (last 72 hours, from Vancouver Intl, to St. Louis). Delta has a score of 7.8 from 8,563 user reviews on momondo.

WestJet Flights to St. Louis

WestJet flights to St. Louis can start from as low as C$ 422 (round-trip, from Halifax Intl, found in the last 72 hours). Over 27 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 3,445 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 23m 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$ 208 Cheap Flights to St. Louis in 2026

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9:25 p.m. - 2:00 p.m.YVR Vancouver Intl-STL Lambert-St Louis

14h 35m1 stop Toronto Pearson Intl

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

10h 05m1 stop Montreal Pierre Elliott Trudeau Intl

C$ 421Air Canada

Wed, 14 Oct - Wed, 21 Oct

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$ 431United Airlines

Thu, 14 Jan - Sun, 24 Jan

8:15 p.m. - 7:59 p.m.YVR Vancouver Intl-STL Lambert-St Louis

22h 44m2 stops San Francisco Denver Intl

6:00 a.m. - 1:45 p.m.STL Lambert-St Louis-YVR Vancouver Intl

8h 45m1 stop Chicago O'Hare Intl

C$ 432United Airlines

Wed, 11 Nov - Sun, 15 Nov

11:50 a.m. - 11:59 p.m.YVR Vancouver Intl-STL Lambert-St Louis

10h 09m1 stop Seattle/Tacoma Intl

6:02 a.m. - 10:55 a.m.STL Lambert-St Louis-YVR Vancouver Intl

6h 53m1 stop Seattle/Tacoma Intl

C$ 436Alaska Airlines

Sat, 24 Oct - Sat, 31 Oct

10:55 p.m. - 1:10 p.m.YVR Vancouver Intl-STL Lambert-St Louis

12h 15m1 stop Atlanta Hartsfield-Jackson

2:29 p.m. - 10:45 a.m.STL Lambert-St Louis-YVR Vancouver Intl

22h 16m1 stop Atlanta Hartsfield-Jackson

C$ 441Multiple Airlines

Thu, 1 Oct - Wed, 7 Oct

1:15 p.m. - 8:57 p.m.YYZ Toronto Pearson Intl-STL Lambert-St Louis

8h 42m1 stop Chicago O'Hare Intl

7:29 a.m. - 5:44 p.m.STL Lambert-St Louis-YYZ Toronto Pearson Intl

9h 15m1 stop Chicago O'Hare Intl

C$ 445American Airlines

Wed, 7 Oct - Wed, 14 Oct

11:39 a.m. - 12:19 a.m.YYZ Toronto Pearson Intl-STL Lambert-St Louis

13h 40m1 stop Chicago O'Hare Intl

5:00 a.m. - 2:33 p.m.STL Lambert-St Louis-YYZ Toronto Pearson Intl

8h 33m1 stop Chicago O'Hare Intl

C$ 445American Airlines

Sat, 10 Oct - Wed, 14 Oct

2:20 p.m. - 8:28 p.m.YVR Vancouver Intl-STL Lambert-St Louis

5h 08m1 stop Salt Lake City

7:08 a.m. - 2:15 p.m.STL Lambert-St Louis-YVR Vancouver Intl

8h 07m1 stop Salt Lake City

C$ 452Delta

Sat, 12 Dec - Mon, 14 Dec

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

7h 00m1 stop Toronto Pearson Intl

4:05 p.m. - 1:58 a.m.STL Lambert-St Louis-YHZ Halifax Intl

7h 53m1 stop Toronto Pearson Intl

C$ 457Air Canada

Sat, 10 Oct - Mon, 9 Nov

2:20 p.m. - 8:28 p.m.YVR Vancouver Intl-STL Lambert-St Louis

5h 08m1 stop Salt Lake City

2:28 p.m. - 12:51 a.m.STL Lambert-St Louis-YVR Vancouver Intl

11h 23m1 stop Salt Lake City

C$ 481Delta

Sat, 12 Dec - Tue, 15 Dec

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10:55 a.m. - 8:38 p.m.YVR Vancouver Intl-STL Lambert-St Louis

7h 43m1 stop Denver Intl

6:55 p.m. - 9:51 a.m.STL Lambert-St Louis-YVR Vancouver Intl

16h 56m1 stop Denver Intl

C$ 594United Airlines

Tue, 15 Sep - Thu, 17 Sep

5:25 p.m. - 3:38 p.m.YVR Vancouver Intl-STL Lambert-St Louis

20h 13m2 stops San Francisco Chicago O'Hare Intl

8:41 a.m. - 11:22 p.m.STL Lambert-St Louis-YVR Vancouver Intl

16h 41m1 stop San Francisco

C$ 594United Airlines

Tue, 15 Sep - Thu, 17 Sep

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$ 718Air Canada

Wed, 16 Sep - Wed, 23 Sep

2:10 p.m. - 8:20 p.m.YUL Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis

7h 10m1 stop Toronto Pearson Intl

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

2h 31mdirect

C$ 737Air Canada

Wed, 16 Sep - Wed, 23 Sep

6:35 a.m. - 4:47 p.m.YYC Calgary-STL Lambert-St Louis

9h 12m1 stop Minneapolis St Paul

11:21 a.m. - 8:42 p.m.STL Lambert-St Louis-YYC Calgary

10h 21m1 stop Minneapolis St Paul

C$ 834Delta

Sun, 13 Sep - Sun, 20 Sep

7:45 a.m. - 4:34 p.m.YYZ Toronto Pearson Intl-STL Lambert-St Louis

9h 49m1 stop Orlando

2:29 p.m. - 2:05 p.m.STL Lambert-St Louis-YYZ Toronto Pearson Intl

22h 36m2 stops Atlanta Hartsfield-Jackson Fort Lauderdale

C$ 876Multiple Airlines

Fri, 18 Sep - Wed, 23 Sep

7:45 a.m. - 4:24 p.m.YYZ Toronto Pearson Intl-STL Lambert-St Louis

9h 39m1 stop Orlando

2:29 p.m. - 2:05 p.m.STL Lambert-St Louis-YYZ Toronto Pearson Intl

22h 36m2 stops Atlanta Hartsfield-Jackson Fort Lauderdale

C$ 878Multiple Airlines

Thu, 17 Sep - Wed, 23 Sep

6:50 p.m. - 1:23 p.m.YYC Calgary-STL Lambert-St Louis

17h 33m2 stops Vancouver Intl Atlanta Hartsfield-Jackson

8:46 a.m. - 12:44 a.m.STL Lambert-St Louis-YYC Calgary

16h 58m2 stops Minneapolis St Paul Vancouver Intl

C$ 898WestJet

Tue, 15 Sep - Tue, 22 Sep

6:30 p.m. - 10:55 a.m.YYC Calgary-STL Lambert-St Louis

15h 25m2 stops Vancouver Intl Atlanta Hartsfield-Jackson

10:05 a.m. - 5:10 p.m.STL Lambert-St Louis-YYC Calgary

8h 05m1 stop Atlanta Hartsfield-Jackson

C$ 903WestJet

Tue, 15 Sep - Tue, 22 Sep

6:47 p.m. - 11:42 p.m.YUL Montreal Pierre Elliott Trudeau Intl-STL Lambert-St Louis

5h 55m1 stop Atlanta Hartsfield-Jackson

7:00 a.m. - 1:31 p.m.STL Lambert-St Louis-YUL Montreal Pierre Elliott Trudeau Intl

5h 31m1 stop New York LaGuardia

C$ 963Delta

Thu, 17 Sep - Tue, 22 Sep

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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$ 612Air 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$ 612Air Canada

Fri, 16 Oct - Mon, 19 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$ 612Air Canada

Wed, 7 Oct - Wed, 14 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$ 612Air Canada

Sat, 10 Oct - Thu, 15 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$ 612Air Canada

Wed, 7 Oct - Fri, 9 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$ 873United Airlines

Tue, 6 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$ 874United Airlines

Wed, 7 Oct - Wed, 14 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$ 1,186Multiple Airlines

Wed, 18 Nov - Sat, 21 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$ 1,294United Airlines

Thu, 8 Oct - Mon, 12 Oct

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$ 1,322United Airlines

Wed, 7 Oct - Mon, 12 Oct

Fly from

Route

Depart

Return

Price

Cheapest round-trip

VancouverSt. Louis

YVR Vancouver Intl - STL Lambert-St Louis

YVRSTL

Vancouver Intl

Wed 14/10

9:25 p.m.-2:00 p.m.

1 stop14h 35m

Lambert-St Louis

Wed 21/10

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

1 stop10h 05m

C$ 421

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$ 431

VancouverSt. Louis

YVR Vancouver Intl - STL Lambert-St Louis

YVRSTL

Vancouver Intl

Wed 11/11

8:15 p.m.-7:59 p.m.

2 stops22h 44m

Lambert-St Louis

Sun 15/11

6:00 a.m.-1:45 p.m.

1 stop8h 45m

C$ 432

VancouverSt. Louis

YVR Vancouver Intl - STL Lambert-St Louis

YVRSTL

Vancouver Intl

Sat 24/10

11:50 a.m.-11:59 p.m.

1 stop10h 09m

Lambert-St Louis

Sat 31/10

6:02 a.m.-10:55 a.m.

1 stop6h 53m

C$ 436

VancouverSt. Louis

YVR Vancouver Intl - STL Lambert-St Louis

YVRSTL

Vancouver Intl

Thu 1/10

10:55 p.m.-1:10 p.m.

1 stop12h 15m

Lambert-St Louis

Wed 7/10

2:29 p.m.-10:45 a.m.

1 stop22h 16m

C$ 441

TorontoSt. Louis

YYZ Toronto Pearson Intl - STL Lambert-St Louis

YYZSTL

Toronto Pearson Intl

Wed 7/10

1:15 p.m.-8:57 p.m.

1 stop8h 42m

Lambert-St Louis

Wed 14/10

7:29 a.m.-5:44 p.m.

1 stop9h 15m

C$ 445

TorontoSt. Louis

YYZ Toronto Pearson Intl - STL Lambert-St Louis

YYZSTL

Toronto Pearson Intl

Sat 10/10

11:39 a.m.-12:19 a.m.

1 stop13h 40m

Lambert-St Louis

Wed 14/10

5:00 a.m.-2:33 p.m.

1 stop8h 33m

C$ 445

Quickest round-trip

VancouverSt. Louis

YVR Vancouver Intl - STL Lambert-St Louis

YVRSTL

Vancouver Intl

Sat 12/12

2:20 p.m.-8:28 p.m.

1 stop5h 08m

Lambert-St Louis

Mon 14/12

7:08 a.m.-2:15 p.m.

1 stop8h 07m

C$ 452

HalifaxSt. Louis

YHZ Halifax Intl - STL Lambert-St Louis

YHZSTL

Halifax Intl

Sat 10/10

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

1 stop7h 00m

Lambert-St Louis

Mon 9/11

4:05 p.m.-1:58 a.m.

1 stop7h 53m

C$ 457

VancouverSt. Louis

YVR Vancouver Intl - STL Lambert-St Louis

YVRSTL

Vancouver Intl

Sat 12/12

2:20 p.m.-8:28 p.m.

1 stop5h 08m

Lambert-St Louis

Tue 15/12

2:28 p.m.-12:51 a.m.

1 stop11h 23m

C$ 481

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$ 540. 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$ 547.

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$ 621. The most expensive day to fly to St. Louis is Monday, with ticket prices averaging around C$ 843.

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$ 645. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are C$ 991 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$ 715 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$ 497 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$ 585 in January
MOST EXPENSIVE MONTH TO FLY TO ST. LOUIS FROM TORONTO PEARSON INTL AIRPORT	April	54% more expensive	It costs about C$ 1,110 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$ 208
Best Round-Trip Price	C$ 421
Fastest flight time	2h 46m
Popular in	December

The best one-way flight price to St. Louis from Canada in the last 5 days is C$ 208 (Vancouver Intl 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$ 421 (Vancouver Intl to Lambert-St Louis).

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The fastest flight to St. Louis from Canada takes 2h 46m (Montreal Pierre Elliott Trudeau 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$ 341

Montreal to Lambert-St Louis Flightsfrom C$ 528

Vancouver to Lambert-St Louis Flightsfrom C$ 312

Ottawa to Lambert-St Louis Flightsfrom C$ 523

Calgary to Lambert-St Louis Flightsfrom C$ 411

Québec City to Lambert-St Louis Flightsfrom C$ 531

Edmonton to Lambert-St Louis Flightsfrom C$ 611

Halifax Intl to Lambert-St Louis Flightsfrom C$ 382

Victoria Intl to Lambert-St Louis Flightsfrom C$ 560

Saskatoon to Lambert-St Louis Flightsfrom C$ 808

Charlottetown Alexander B. Campbell to Lambert-St Louis Flightsfrom C$ 726

C$ 208 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 6/10. 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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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?

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Cheapest flights to Lambert-St Louis

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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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