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Flights to Lambert-St Louis

C$ 233 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 6/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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
8:35 a.m. - 4:34 p.m.
YVR
-
STL
5h 59m
1 stop
United Airlines Logo
4:40 p.m. - 10:56 p.m.
STL
-
YVR
8h 16m
1 stop
C$ 403United Airlines
Tue, 15 Sep - Tue, 22 Sep
United Airlines Logo
11:35 p.m. - 3:46 p.m.
YVR
-
STL
14h 11m
1 stop
United Airlines Logo
5:10 a.m. - 6:18 p.m.
STL
-
YVR
15h 08m
1 stop
C$ 407United Airlines
Wed, 15 Jul - Mon, 20 Jul
American Airlines Logo
3:13 p.m. - 12:27 a.m.
YYZ
-
STL
10h 14m
1 stop
American Airlines Logo
5:00 a.m. - 2:32 p.m.
STL
-
YYZ
8h 32m
1 stop
C$ 435American Airlines
Wed, 9 Sep - Tue, 22 Sep
American Airlines Logo
1:15 p.m. - 12:27 a.m.
YYZ
-
STL
12h 12m
1 stop
American Airlines Logo
5:00 a.m. - 2:32 p.m.
STL
-
YYZ
8h 32m
1 stop
C$ 438American Airlines
Wed, 9 Sep - Tue, 22 Sep
Air Canada Logo
8:25 a.m. - 8:22 p.m.
YVR
-
STL
9h 57m
2 stops
Air Canada Logo
8:55 a.m. - 7:49 p.m.
STL
-
YVR
12h 54m
2 stops
C$ 478Air Canada
Tue, 14 Jul - Tue, 21 Jul
Delta Logo
6:30 a.m. - 4:17 p.m.
YHZ
-
STL
11h 47m
2 stops
Delta Logo
2:00 p.m. - 11:13 p.m.
STL
-
YHZ
7h 13m
1 stop
C$ 494Delta
Tue, 11 Aug - Sat, 22 Aug
Air Canada Logo
4:10 p.m. - 8:00 p.m.
YHZ
-
STL
5h 50m
1 stop
Air Canada Logo
8:55 a.m. - 5:09 p.m.
STL
-
YHZ
6h 14m
1 stop
C$ 502Air Canada
Mon, 21 Sep - Wed, 30 Sep
WestJet Logo
3:30 p.m. - 8:42 p.m.
YHZ
-
STL
7h 12m
1 stop
WestJet Logo
6:09 p.m. - 9:45 p.m.
STL
-
YHZ
25h 36m
1 stop
C$ 516WestJet
Tue, 11 Aug - Sat, 22 Aug
WestJet Logo
7:00 a.m. - 4:17 p.m.
YYC
-
STL
8h 17m
1 stop
WestJet Logo
10:33 a.m. - 8:15 p.m.
STL
-
YYC
10h 42m
1 stop
C$ 537WestJet
Thu, 13 Aug - Mon, 17 Aug
Delta Logo
7:00 a.m. - 12:56 p.m.
YUL
-
STL
6h 56m
1 stop
Delta Logo
6:00 a.m. - 1:36 p.m.
STL
-
YUL
6h 36m
1 stop
C$ 689Delta
Wed, 4 Nov - Sat, 7 Nov

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 17 June 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

Tue 15/9

8:35 a.m.-4:34 p.m.

1 stop5h 59m

Lambert-St Louis

Tue 22/9

4:40 p.m.-10:56 p.m.

1 stop8h 16m

C$ 403

VancouverSt. Louis

YVR - STL

YVRSTL

Vancouver Intl

Wed 15/7

11:35 p.m.-3:46 p.m.

1 stop14h 11m

Lambert-St Louis

Mon 20/7

5:10 a.m.-6:18 p.m.

1 stop15h 08m

C$ 407

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Wed 9/9

3:13 p.m.-12:27 a.m.

1 stop10h 14m

Lambert-St Louis

Tue 22/9

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

1 stop8h 32m

C$ 435

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Wed 9/9

1:15 p.m.-12:27 a.m.

1 stop12h 12m

Lambert-St Louis

Tue 22/9

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

1 stop8h 32m

C$ 438

VancouverSt. Louis

YVR - STL

YVRSTL

Vancouver Intl

Tue 14/7

8:25 a.m.-8:22 p.m.

2 stops9h 57m

Lambert-St Louis

Tue 21/7

8:55 a.m.-7:49 p.m.

2 stops12h 54m

C$ 478

HalifaxSt. Louis

YHZ - STL

YHZSTL

Halifax Intl

Tue 11/8

6:30 a.m.-4:17 p.m.

2 stops11h 47m

Lambert-St Louis

Sat 22/8

2:00 p.m.-11:13 p.m.

1 stop7h 13m

C$ 494
Quickest round-trip

HalifaxSt. Louis

YHZ - STL

YHZSTL

Halifax Intl

Mon 21/9

4:10 p.m.-8:00 p.m.

1 stop5h 50m

Lambert-St Louis

Wed 30/9

8:55 a.m.-5:09 p.m.

1 stop6h 14m

C$ 502

HalifaxSt. Louis

YHZ - STL

YHZSTL

Halifax Intl

Tue 11/8

3:30 p.m.-8:42 p.m.

1 stop7h 12m

Lambert-St Louis

Sat 22/8

6:09 p.m.-9:45 p.m.

1 stop25h 36m

C$ 516

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Thu 13/8

7:00 a.m.-4:17 p.m.

1 stop8h 17m

Lambert-St Louis

Mon 17/8

10:33 a.m.-8:15 p.m.

1 stop10h 42m

C$ 537

MontrealSt. Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Wed 4/11

7:00 a.m.-12:56 p.m.

1 stop6h 56m

Lambert-St Louis

Sat 7/11

6:00 a.m.-1:36 p.m.

1 stop6h 36m

C$ 689

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 August to fly from Canada, when ticket prices are also cheap, with an average price of C$ 572.

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$ 900.

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$ 635. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are C$ 1,014 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$ 722 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$ 504 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 AIRPORTJanuary18% 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 AIRPORTApril55% more expensiveIt costs about C$ 1,124 for flights to St. Louis from Toronto Pearson Intl Airport in April
MOST POPULAR MONTH TO FLY TO ST. LOUIS FROM TORONTO PEARSON INTL AIRPORTOctober210% 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$ 233

Best Round-Trip Price

C$ 403

Fastest flight time

5h 06m

Popular in

September
The best one-way flight price to St. Louis from Canada in the last 5 days is C$ 233 (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$ 403 (Vancouver Intl to Lambert-St Louis).
Search Deals
The fastest flight to St. Louis from Canada takes 5h 06m (Ottawa to Lambert-St Louis).
Search Deals
September has the highest demand for flights to St. Louis, with a 21% 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 June 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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