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Flights to Lambert-St Louis

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 25/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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
11:35 p.m. - 12:11 p.m.
YVR
-
STL
10h 36m
1 stop
United Airlines Logo
5:10 a.m. - 9:51 a.m.
STL
-
YVR
6h 41m
1 stop
C$ 381United Airlines
Thu, 4 Jun - Thu, 11 Jun
United Airlines Logo
11:35 p.m. - 12:07 p.m.
YVR
-
STL
10h 32m
1 stop
United Airlines Logo
5:33 p.m. - 10:25 p.m.
STL
-
YVR
6h 52m
1 stop
C$ 382United Airlines
Fri, 19 Jun - Sun, 28 Jun
American Airlines Logo
1:40 p.m. - 11:56 p.m.
YYC
-
STL
9h 16m
1 stop
American Airlines Logo
6:00 a.m. - 11:43 p.m.
STL
-
YYC
18h 43m
1 stop
C$ 388American Airlines
Wed, 20 May - Wed, 27 May
Air Canada Logo
6:00 a.m. - 12:06 p.m.
YHZ
-
STL
8h 06m
1 stop
Air Canada Logo
8:40 a.m. - 5:09 p.m.
STL
-
YHZ
6h 29m
1 stop
C$ 410Air Canada
Sat, 30 May - Tue, 2 Jun
Air Canada Logo
7:00 a.m. - 12:21 p.m.
YOW
-
STL
6h 21m
1 stop
Air Canada Logo
2:15 p.m. - 9:15 p.m.
STL
-
YOW
6h 00m
1 stop
C$ 412Air Canada
Sat, 27 Jun - Sun, 28 Jun
WestJet Logo
3:30 p.m. - 8:31 p.m.
YHZ
-
STL
7h 01m
1 stop
WestJet Logo
5:45 p.m. - 9:45 p.m.
STL
-
YHZ
26h 00m
1 stop
C$ 444WestJet
Sun, 23 Aug - Wed, 2 Sep
Delta Logo
1:16 p.m. - 12:30 a.m.
YVR
-
STL
9h 14m
1 stop
Delta Logo
5:00 p.m. - 10:32 p.m.
STL
-
YVR
7h 32m
1 stop
C$ 451Delta
Thu, 7 May - Sat, 9 May
WestJet Logo
3:30 p.m. - 8:31 p.m.
YHZ
-
STL
7h 01m
1 stop
WestJet Logo
6:00 a.m. - 9:25 p.m.
STL
-
YHZ
13h 25m
2 stops
C$ 457WestJet
Sun, 23 Aug - Wed, 2 Sep
American Airlines Logo
1:40 p.m. - 8:30 p.m.
YYC
-
STL
5h 50m
1 stop
American Airlines Logo
6:00 a.m. - 11:43 p.m.
STL
-
YYC
18h 43m
1 stop
C$ 532American Airlines
Tue, 2 Jun - Wed, 3 Jun
Delta Logo
12:27 p.m. - 9:06 p.m.
YYC
-
STL
7h 39m
1 stop
Delta Logo
3:11 p.m. - 8:30 p.m.
STL
-
YYC
6h 19m
1 stop
C$ 539Delta
Sat, 23 May - Wed, 27 May

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 22 April 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 4/6

11:35 p.m.-12:11 p.m.

1 stop10h 36m

Lambert-St Louis

Thu 11/6

5:10 a.m.-9:51 a.m.

1 stop6h 41m

C$ 381

VancouverSt. Louis

YVR - STL

YVRSTL

Vancouver Intl

Fri 19/6

11:35 p.m.-12:07 p.m.

1 stop10h 32m

Lambert-St Louis

Sun 28/6

5:33 p.m.-10:25 p.m.

1 stop6h 52m

C$ 382

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Wed 20/5

1:40 p.m.-11:56 p.m.

1 stop9h 16m

Lambert-St Louis

Wed 27/5

6:00 a.m.-11:43 p.m.

1 stop18h 43m

C$ 388

HalifaxSt. Louis

YHZ - STL

YHZSTL

Halifax Intl

Sat 30/5

6:00 a.m.-12:06 p.m.

1 stop8h 06m

Lambert-St Louis

Tue 2/6

8:40 a.m.-5:09 p.m.

1 stop6h 29m

C$ 410
Quickest round-trip

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Sat 27/6

7:00 a.m.-12:21 p.m.

1 stop6h 21m

Lambert-St Louis

Sun 28/6

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

1 stop6h 00m

C$ 412

HalifaxSt. Louis

YHZ - STL

YHZSTL

Halifax Intl

Sun 23/8

3:30 p.m.-8:31 p.m.

1 stop7h 01m

Lambert-St Louis

Wed 2/9

5:45 p.m.-9:45 p.m.

1 stop26h 00m

C$ 444

VancouverSt. Louis

YVR - STL

YVRSTL

Vancouver Intl

Thu 7/5

1:16 p.m.-12:30 a.m.

1 stop9h 14m

Lambert-St Louis

Sat 9/5

5:00 p.m.-10:32 p.m.

1 stop7h 32m

C$ 451

HalifaxSt. Louis

YHZ - STL

YHZSTL

Halifax Intl

Sun 23/8

3:30 p.m.-8:31 p.m.

1 stop7h 01m

Lambert-St Louis

Wed 2/9

6:00 a.m.-9:25 p.m.

2 stops13h 25m

C$ 457

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Tue 2/6

1:40 p.m.-8:30 p.m.

1 stop5h 50m

Lambert-St Louis

Wed 3/6

6:00 a.m.-11:43 p.m.

1 stop18h 43m

C$ 532

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Sat 23/5

12:27 p.m.-9:06 p.m.

1 stop7h 39m

Lambert-St Louis

Wed 27/5

3:11 p.m.-8:30 p.m.

1 stop6h 19m

C$ 539

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 June is, on average, the cheapest month to fly to St. Louis from Canada, with most prices found around C$ 474. If you don’t want to visit St. Louis in June, then you should wait until January to fly from Canada, when ticket prices are also cheap, with an average price of C$ 539.

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 Thursday is the least expensive day to fly to St. Louis. Tickets to fly out on this day can be as low as C$ 575. The most expensive day to fly to St. Louis is Monday, with ticket prices averaging around C$ 803.

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$ 533. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are C$ 647 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$ 666 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$ 490 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 AIRPORTJune20% cheaperFlying from Toronto Pearson Intl Airport to St. Louis costs on average just C$ 537 in June
MOST EXPENSIVE MONTH TO FLY TO ST. LOUIS FROM TORONTO PEARSON INTL AIRPORTApril64% more expensiveIt costs about C$ 1,094 for flights to St. Louis from Toronto Pearson Intl Airport in April
MOST POPULAR MONTH TO FLY TO ST. LOUIS FROM TORONTO PEARSON INTL AIRPORTMay550% more users visitedMore momondo users searched in flights to St. Louis from Toronto Pearson Intl Airport in May 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$ 381

Fastest flight time

5h 42m

Popular in

May
The best one-way flight price to St. Louis from Canada in the last 72 hours is C$ 208 (Vancouver Intl to Lambert-St Louis).
Search Deals
The best round-trip flight price to St. Louis from Canada in the last 72 hours is C$ 381 (Vancouver Intl to Lambert-St Louis).
Search Deals
The fastest flight to St. Louis from Canada takes 5h 42m (Edmonton to Lambert-St Louis).
Search Deals
May has the highest demand for flights to St. Louis, with a 19% 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 April 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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