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 13 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$ 215 (last 72 hours, from Vancouver Intl, to St. Louis). Delta has a score of 7.8 from 8,627 user reviews on momondo.

WestJet Flights to St. Louis

WestJet flights to St. Louis can start from as low as C$ 434 (round-trip, from Halifax Intl, found in the last 72 hours). Over 18 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 3,450 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 02m 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$ 235 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$ 478United 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

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

6h 50m1 stop Chicago O'Hare Intl

C$ 494United Airlines

Tue, 13 Oct - Wed, 14 Oct

6:25 a.m. - 2:26 p.m.YVR Vancouver Intl-STL Lambert-St Louis

7h 01m1 stop Toronto Pearson Intl

4:05 p.m. - 2:48 a.m.STL Lambert-St Louis-YVR Vancouver Intl

11h 43m1 stop Toronto Pearson Intl

C$ 535Air Canada

Thu, 14 Jan - Sun, 24 Jan

2:35 p.m. - 10:59 p.m.YVR Vancouver Intl-STL Lambert-St Louis

7h 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$ 555Alaska Airlines

Fri, 6 Nov - Sat, 14 Nov

2:35 p.m. - 10:59 p.m.YVR Vancouver Intl-STL Lambert-St Louis

7h 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$ 555Alaska Airlines

Sun, 8 Nov - Sat, 14 Nov

10:30 a.m. - 9:21 p.m.YVR Vancouver Intl-STL Lambert-St Louis

8h 51m1 stop Chicago O'Hare Intl

11:35 a.m. - 6:15 p.m.STL Lambert-St Louis-YVR Vancouver Intl

8h 40m1 stop Chicago O'Hare Intl

C$ 558Air Canada

Fri, 16 Oct - Mon, 19 Oct

10:15 p.m. - 10:39 p.m.YVR Vancouver Intl-STL Lambert-St Louis

23h 24m2 stops Calgary Atlanta Hartsfield-Jackson

3:45 p.m. - 1:40 a.m.STL Lambert-St Louis-YVR Vancouver Intl

10h 55m2 stops Minneapolis St Paul Calgary

C$ 558WestJet

Thu, 14 Jan - Sun, 24 Jan

10:15 p.m. - 10:39 p.m.YVR Vancouver Intl-STL Lambert-St Louis

23h 24m2 stops Calgary Atlanta Hartsfield-Jackson

3:45 p.m. - 2:24 p.m.STL Lambert-St Louis-YVR Vancouver Intl

23h 39m1 stop Minneapolis St Paul

C$ 561WestJet

Thu, 14 Jan - Sun, 24 Jan

7:15 a.m. - 12:23 p.m.YYC Calgary-STL Lambert-St Louis

5h 08m1 stop Salt Lake City

3:45 p.m. - 10:54 p.m.STL Lambert-St Louis-YYC Calgary

7h 09m1 stop Minneapolis St Paul

C$ 605Delta

Thu, 21 Jan - Mon, 25 Jan

7:25 a.m. - 12:32 p.m.YYC Calgary-STL Lambert-St Louis

5h 07m1 stop Salt Lake City

6:21 a.m. - 2:35 p.m.STL Lambert-St Louis-YYC Calgary

8h 14m1 stop Minneapolis St Paul

C$ 668Delta

Sun, 1 Nov - Sun, 8 Nov

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4:45 p.m. - 1:31 p.m.YYZ Toronto Pearson Intl-STL Lambert-St Louis

21h 46m2 stops Nashville Intl Jonesboro

4:30 p.m. - 4:40 p.m.STL Lambert-St Louis-YYZ Toronto Pearson Intl

23h 10m1 stop Orlando

C$ 944Multiple Airlines

Wed, 7 Oct - Mon, 19 Oct

6:00 a.m. - 8:36 p.m.YYC Calgary-STL Lambert-St Louis

13h 36m1 stop Denver Intl

12:10 p.m. - 9:27 p.m.STL Lambert-St Louis-YYC Calgary

10h 17m1 stop Montreal Pierre Elliott Trudeau Intl

C$ 1,024Air Canada

Fri, 9 Oct - Mon, 12 Oct

10:15 a.m. - 2:45 p.m.YYC Calgary-STL Lambert-St Louis

27h 30m1 stop Minneapolis St Paul

6:21 a.m. - 4:10 p.m.STL Lambert-St Louis-YYC Calgary

10h 49m2 stops Minneapolis St Paul Winnipeg

C$ 1,048WestJet

Fri, 9 Oct - Mon, 12 Oct

11:50 p.m. - 1:20 p.m.YYC Calgary-STL Lambert-St Louis

12h 30m2 stops Toronto Pearson Intl Atlanta Hartsfield-Jackson

6:21 a.m. - 4:10 p.m.STL Lambert-St Louis-YYC Calgary

10h 49m2 stops Minneapolis St Paul Winnipeg

C$ 1,053WestJet

Fri, 9 Oct - Mon, 12 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$ 1,069Air Canada

Fri, 9 Oct - Mon, 12 Oct

6:00 a.m. - 3:39 p.m.YYZ Toronto Pearson Intl-STL Lambert-St Louis

10h 39m1 stop New York LaGuardia

7:00 a.m. - 1:40 p.m.STL Lambert-St Louis-YYZ Toronto Pearson Intl

5h 40m1 stop New York LaGuardia

C$ 1,090Delta

Wed, 7 Oct - Wed, 14 Oct

7:55 a.m. - 3:39 p.m.YYZ Toronto Pearson Intl-STL Lambert-St Louis

8h 44m1 stop New York LaGuardia

6:47 a.m. - 1:36 p.m.STL Lambert-St Louis-YYZ Toronto Pearson Intl

5h 49m1 stop Detroit Metropolitan Wayne County

C$ 1,090Delta

Wed, 7 Oct - Thu, 15 Oct

6:00 a.m. - 12:13 p.m.YYZ Toronto Pearson Intl-STL Lambert-St Louis

7h 13m2 stops New York LaGuardia Chicago O'Hare Intl

8:30 a.m. - 10:11 p.m.STL Lambert-St Louis-YYZ Toronto Pearson Intl

12h 41m1 stop Washington, D.C. Dulles Intl

C$ 1,210United Airlines

Wed, 7 Oct - Wed, 14 Oct

6:00 a.m. - 12:13 p.m.YYZ Toronto Pearson Intl-STL Lambert-St Louis

7h 13m2 stops New York LaGuardia Chicago O'Hare Intl

8:30 a.m. - 11:54 p.m.STL Lambert-St Louis-YYZ Toronto Pearson Intl

14h 24m1 stop Washington, D.C. Dulles Intl

C$ 1,210United Airlines

Wed, 7 Oct - Tue, 13 Oct

11:05 a.m. - 6:57 p.m.YYC Calgary-STL Lambert-St Louis

30h 52m3 stops Edmonton Las Vegas Harry Reid Intl Denver Intl

5:53 p.m. - 12:10 p.m.STL Lambert-St Louis-YYC Calgary

19h 17m2 stops Dallas/Fort Worth Phoenix Sky Harbor Intl

C$ 1,812Multiple Airlines

Fri, 9 Oct - Mon, 12 Oct

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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$ 767Air Canada

Thu, 15 Oct - Sun, 18 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$ 767Air Canada

Tue, 13 Oct - Sun, 18 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$ 773Air Canada

Thu, 22 Oct - Mon, 26 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$ 773Air Canada

Sun, 1 Nov - Fri, 6 Nov

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$ 776Air Canada

Tue, 13 Oct - Sun, 18 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$ 1,004United Airlines

Tue, 27 Oct - Tue, 3 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$ 1,076United Airlines

Wed, 28 Oct - Wed, 4 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$ 1,231United Airlines

Sat, 31 Oct - Sat, 7 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$ 1,362United Airlines

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$ 2,148Multiple Airlines

Thu, 12 Nov - Thu, 19 Nov

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$ 478

VancouverSt. Louis

YVR Vancouver Intl - STL Lambert-St Louis

YVRSTL

Vancouver Intl

Tue 13/10

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

1 stop8h 20m

Lambert-St Louis

Wed 14/10

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

1 stop6h 50m

C$ 494

VancouverSt. Louis

YVR Vancouver Intl - STL Lambert-St Louis

YVRSTL

Vancouver Intl

Thu 14/1

6:25 a.m.-2:26 p.m.

1 stop7h 01m

Lambert-St Louis

Sun 24/1

4:05 p.m.-2:48 a.m.

1 stop11h 43m

C$ 535

VancouverSt. Louis

YVR Vancouver Intl - STL Lambert-St Louis

YVRSTL

Vancouver Intl

Fri 6/11

2:35 p.m.-10:59 p.m.

1 stop7h 24m

Lambert-St Louis

Sat 14/11

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

1 stop9h 35m

C$ 555

VancouverSt. Louis

YVR Vancouver Intl - STL Lambert-St Louis

YVRSTL

Vancouver Intl

Sun 8/11

2:35 p.m.-10:59 p.m.

1 stop7h 24m

Lambert-St Louis

Sat 14/11

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

1 stop9h 35m

C$ 555

VancouverSt. Louis

YVR Vancouver Intl - STL Lambert-St Louis

YVRSTL

Vancouver Intl

Fri 16/10

10:30 a.m.-9:21 p.m.

1 stop8h 51m

Lambert-St Louis

Mon 19/10

11:35 a.m.-6:15 p.m.

1 stop8h 40m

C$ 558

VancouverSt. Louis

YVR Vancouver Intl - STL Lambert-St Louis

YVRSTL

Vancouver Intl

Thu 14/1

10:15 p.m.-10:39 p.m.

2 stops23h 24m

Lambert-St Louis

Sun 24/1

3:45 p.m.-1:40 a.m.

2 stops10h 55m

C$ 558

VancouverSt. Louis

YVR Vancouver Intl - STL Lambert-St Louis

YVRSTL

Vancouver Intl

Thu 14/1

10:15 p.m.-10:39 p.m.

2 stops23h 24m

Lambert-St Louis

Sun 24/1

3:45 p.m.-2:24 p.m.

1 stop23h 39m

C$ 561

Quickest round-trip

CalgarySt. Louis

YYC Calgary - STL Lambert-St Louis

YYCSTL

Calgary

Thu 21/1

7:15 a.m.-12:23 p.m.

1 stop5h 08m

Lambert-St Louis

Mon 25/1

3:45 p.m.-10:54 p.m.

1 stop7h 09m

C$ 605

CalgarySt. Louis

YYC Calgary - STL Lambert-St Louis

YYCSTL

Calgary

Sun 1/11

7:25 a.m.-12:32 p.m.

1 stop5h 07m

Lambert-St Louis

Sun 8/11

6:21 a.m.-2:35 p.m.

1 stop8h 14m

C$ 668

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$ 562. 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$ 587.

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$ 603. The most expensive day to fly to St. Louis is Monday, with ticket prices averaging around C$ 866.

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$ 681. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are C$ 1,029 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$ 742 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$ 511 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	20% cheaper	Flying from Toronto Pearson Intl Airport to St. Louis costs on average just C$ 601 in January
MOST EXPENSIVE MONTH TO FLY TO ST. LOUIS FROM TORONTO PEARSON INTL AIRPORT	April	53% more expensive	It costs about C$ 1,140 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	200% 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$ 235
Best Round-Trip Price	C$ 478
Fastest flight time	8h 19m
Popular in	December

The best one-way flight price to St. Louis from Canada in the last 5 days is C$ 235 (Toronto Pearson 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$ 478 (Vancouver Intl to Lambert-St Louis).

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The fastest flight to St. Louis from Canada takes 8h 19m (Halifax 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 October 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$ 410

Montreal to Lambert-St Louis Flightsfrom C$ 677

Vancouver to Lambert-St Louis Flightsfrom C$ 386

Ottawa to Lambert-St Louis Flightsfrom C$ 515

Calgary to Lambert-St Louis Flightsfrom C$ 469

Halifax Intl to Lambert-St Louis Flightsfrom C$ 446

Saskatoon to Lambert-St Louis Flightsfrom C$ 1,219

Victoria Intl to Lambert-St Louis Flightsfrom C$ 1,071

Charlottetown Alexander B. Campbell to Lambert-St Louis Flightsfrom C$ 902

Edmonton to Lambert-St Louis Flightsfrom C$ 676

Québec City to Lambert-St Louis Flightsfrom C$ 813

C$ 235 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 10/11. 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?

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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