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Flights to Lambert-St Louis

C$ 202 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 10/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from Canada to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
2:20 p.m. - 11:31 p.m.
YVR
-
STL
7h 11m
1 stop
United Airlines Logo
5:30 p.m. - 10:25 p.m.
STL
-
YVR
6h 55m
1 stop
C$ 356United Airlines
Thu, 17 Sep - Sun, 20 Sep
American Airlines Logo
1:15 p.m. - 12:14 a.m.
YYZ
-
STL
11h 59m
1 stop
American Airlines Logo
9:32 a.m. - 6:30 p.m.
STL
-
YYZ
7h 58m
1 stop
C$ 463American Airlines
Thu, 6 Aug - Tue, 11 Aug
United Airlines Logo
12:10 p.m. - 10:30 p.m.
YVR
-
STL
8h 20m
1 stop
United Airlines Logo
1:29 p.m. - 10:26 p.m.
STL
-
YVR
10h 57m
1 stop
C$ 471United Airlines
Mon, 5 Oct - Tue, 6 Oct
American Airlines Logo
3:14 p.m. - 12:14 a.m.
YYZ
-
STL
10h 00m
1 stop
American Airlines Logo
1:25 p.m. - 11:29 p.m.
STL
-
YYZ
9h 04m
1 stop
C$ 478American Airlines
Wed, 12 Aug - Sat, 15 Aug
WestJet Logo
6:15 p.m. - 1:23 p.m.
YHZ
-
STL
21h 08m
2 stops
WestJet Logo
1:55 p.m. - 8:10 a.m.
STL
-
YHZ
16h 15m
2 stops
C$ 482WestJet
Mon, 21 Sep - Wed, 30 Sep
WestJet Logo
6:15 p.m. - 9:00 a.m.
YHZ
-
STL
16h 45m
2 stops
WestJet Logo
10:29 a.m. - 8:10 a.m.
STL
-
YHZ
19h 41m
2 stops
C$ 485WestJet
Mon, 21 Sep - Wed, 30 Sep
Delta Logo
6:00 a.m. - 3:12 p.m.
YVR
-
STL
7h 12m
1 stop
Delta Logo
11:21 a.m. - 8:26 p.m.
STL
-
YVR
11h 05m
1 stop
C$ 488Delta
Sun, 27 Sep - Wed, 30 Sep
Air Canada Logo
10:00 p.m. - 2:00 p.m.
YVR
-
STL
14h 00m
1 stop
Air Canada Logo
5:36 p.m. - 10:26 p.m.
STL
-
YVR
6h 50m
1 stop
C$ 494Air Canada
Mon, 5 Oct - Tue, 6 Oct
Air Canada Logo
10:00 a.m. - 2:04 p.m.
YOW
-
STL
5h 04m
1 stop
Air Canada Logo
2:40 p.m. - 9:15 p.m.
STL
-
YOW
5h 35m
1 stop
C$ 508Air Canada
Thu, 13 Aug - Wed, 19 Aug
Delta Logo
6:55 a.m. - 3:54 p.m.
YOW
-
STL
9h 59m
2 stops
Delta Logo
2:30 p.m. - 12:20 a.m.
STL
-
YOW
8h 50m
2 stops
C$ 585Delta
Thu, 1 Oct - Mon, 5 Oct

momondo Fare Finder

 
Locate flights to Lambert-St Louis that fit your budget, with regularly updated fares and availability. In the last 7 days, momondo users made a total of 96,600 searches and data was last updated on 18 July 2026.
Use the filters below to find and compare flights to St. Louis that are best for you.

Fly from

Route

Depart

Return

Price

Cheapest round-trip

VancouverSt. Louis

YVR - STL

YVRSTL

Vancouver Intl

Thu 17/9

2:20 p.m.-11:31 p.m.

1 stop7h 11m

Lambert-St Louis

Sun 20/9

5:30 p.m.-10:25 p.m.

1 stop6h 55m

C$ 356

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Thu 6/8

1:15 p.m.-12:14 a.m.

1 stop11h 59m

Lambert-St Louis

Tue 11/8

9:32 a.m.-6:30 p.m.

1 stop7h 58m

C$ 463

VancouverSt. Louis

YVR - STL

YVRSTL

Vancouver Intl

Mon 5/10

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

1 stop8h 20m

Lambert-St Louis

Tue 6/10

1:29 p.m.-10:26 p.m.

1 stop10h 57m

C$ 471

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Wed 12/8

3:14 p.m.-12:14 a.m.

1 stop10h 00m

Lambert-St Louis

Sat 15/8

1:25 p.m.-11:29 p.m.

1 stop9h 04m

C$ 478

HalifaxSt. Louis

YHZ - STL

YHZSTL

Halifax Intl

Mon 21/9

6:15 p.m.-1:23 p.m.

2 stops21h 08m

Lambert-St Louis

Wed 30/9

1:55 p.m.-8:10 a.m.

2 stops16h 15m

C$ 482

HalifaxSt. Louis

YHZ - STL

YHZSTL

Halifax Intl

Mon 21/9

6:15 p.m.-9:00 a.m.

2 stops16h 45m

Lambert-St Louis

Wed 30/9

10:29 a.m.-8:10 a.m.

2 stops19h 41m

C$ 485

VancouverSt. Louis

YVR - STL

YVRSTL

Vancouver Intl

Sun 27/9

6:00 a.m.-3:12 p.m.

1 stop7h 12m

Lambert-St Louis

Wed 30/9

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

1 stop11h 05m

C$ 488

VancouverSt. Louis

YVR - STL

YVRSTL

Vancouver Intl

Mon 5/10

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

1 stop14h 00m

Lambert-St Louis

Tue 6/10

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

1 stop6h 50m

C$ 494
Quickest round-trip

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Thu 13/8

10:00 a.m.-2:04 p.m.

1 stop5h 04m

Lambert-St Louis

Wed 19/8

2:40 p.m.-9:15 p.m.

1 stop5h 35m

C$ 508

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Thu 1/10

6:55 a.m.-3:54 p.m.

2 stops9h 59m

Lambert-St Louis

Mon 5/10

2:30 p.m.-12:20 a.m.

2 stops8h 50m

C$ 585

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to St. Louis from

St. Louis flights insights and trends

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

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$ 554. 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$ 592.

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$ 594. The most expensive day to fly to St. Louis is Monday, with ticket prices averaging around C$ 827.

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$ 636. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are C$ 842 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$ 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$ 503 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 AIRPORTJanuary17% cheaperFlying from Toronto Pearson Intl Airport to St. Louis costs on average just C$ 592 in January
MOST EXPENSIVE MONTH TO FLY TO ST. LOUIS FROM TORONTO PEARSON INTL AIRPORTApril58% more expensiveIt costs about C$ 1,123 for flights to St. Louis from Toronto Pearson Intl Airport in April
MOST POPULAR MONTH TO FLY TO ST. LOUIS FROM TORONTO PEARSON INTL AIRPORTOctober258% more users visitedMore 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$ 202

Best Round-Trip Price

C$ 356

Fastest flight time

5h 24m

Popular in

September
The best one-way flight price to St. Louis from Canada in the last 5 days is C$ 202 (Vancouver Intl to Lambert-St Louis).
Search Deals
The best round-trip flight price to St. Louis from Canada in the last 5 days is C$ 356 (Vancouver Intl to Lambert-St Louis).
Search Deals
The fastest flight to St. Louis from Canada takes 5h 24m (Ottawa to Lambert-St Louis).
Search Deals
September has the highest demand for flights to St. Louis, with a 15% price increase on average.
Search Deals

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 July 2026, there are 7 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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