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Cheap flights from St. Louis to Canada from $101

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Canada departing on 12/8. 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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0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:43 pm - 11:59 pmSTL-YVR
30h 16m2 stops
Multiple Airlines Logo
9:10 am - 7:41 pmYVR-STL
8h 31m1 stop
$246Multiple Airlines
Find Deal
Sat, Feb 21 - Fri, Feb 27
Multiple Airlines Logo
5:44 pm - 10:20 pmSTL-YVR
30h 36m1 stop
Multiple Airlines Logo
9:30 am - 4:49 pmYVR-STL
29h 19m1 stop
$248Multiple Airlines
Find Deal
Wed, Feb 11 - Tue, Feb 17
American Airlines Logo
6:33 pm - 10:57 amSTL-YYZ
15h 24m1 stop
American Airlines Logo
11:38 am - 6:03 pmYYZ-STL
7h 25m1 stop
$279American Airlines
Find Deal
Sat, Feb 14 - Sat, Feb 21
American Airlines Logo
3:20 pm - 12:48 pmSTL-YYC
22h 28m1 stop
American Airlines Logo
1:40 pm - 10:22 amYYC-STL
19h 42m1 stop
$302American Airlines
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Tue, Feb 3 - Mon, Feb 9
Air Canada Logo
4:05 pm - 12:04 amSTL-YHZ
5h 59m1 stop
Air Canada Logo
9:00 am - 3:24 pmYHZ-STL
8h 24m1 stop
$331Air Canada
Find Deal
Tue, Apr 7 - Wed, Apr 8
Air Canada Logo
4:05 pm - 12:04 amSTL-YHZ
5h 59m1 stop
Air Canada Logo
6:55 am - 3:24 pmYHZ-STL
10h 29m2 stops
$336Air Canada
Find Deal
Tue, Apr 7 - Wed, Apr 8
United Airlines Logo
6:30 am - 1:54 pmSTL-YHZ
5h 24m1 stop
United Airlines Logo
7:00 am - 3:21 pmYHZ-STL
10h 21m2 stops
$342United Airlines
Find Deal
Tue, Apr 7 - Wed, Apr 8
United Airlines Logo
7:00 am - 1:34 pmSTL-YOW
5h 34m1 stop
United Airlines Logo
9:45 am - 9:00 pmYOW-STL
12h 15m2 stops
$372United Airlines
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Wed, Feb 25 - Sat, Feb 28
WestJet Logo
6:00 am - 3:09 pmSTL-YEG
10h 09m2 stops
WestJet Logo
9:55 pm - 11:25 pmYEG-STL
24h 30m2 stops
$615WestJet
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Wed, Dec 17 - Mon, Jan 5
WestJet Logo
6:00 am - 3:09 pmSTL-YEG
10h 09m2 stops
WestJet Logo
12:05 am - 4:06 pmYEG-STL
15h 01m2 stops
$670WestJet
Find Deal
Mon, Dec 8 - Sun, Dec 14

American Airlines flights from St. Louis to Canada

Our best American Airlines deals on St. Louis to Canada flight tickets
American Airlines
Feb 14
STL6:33 pmLambert-St Louis
15h 24m
1 stop
YYZ10:57 amToronto Pearson Intl
Feb 21
YYZ11:38 amToronto Pearson Intl
7h 25m
1 stop
STL6:03 pmLambert-St Louis
$279
Find similar
American Airlines
Feb 3
STL3:20 pmLambert-St Louis
22h 28m
1 stop
YYC12:48 pmCalgary
Feb 9
YYC1:40 pmCalgary
19h 42m
1 stop
STL10:22 amLambert-St Louis
$302
Find similar
American Airlines
Feb 3
STL6:00 amLambert-St Louis
16h 43m
2 stops
YYC9:43 pmCalgary
Feb 9
YYC1:40 pmCalgary
19h 42m
1 stop
STL10:22 amLambert-St Louis
$312
Find similar

Air Canada flights from St. Louis to Canada

Our best Air Canada deals on St. Louis to Canada flight tickets
Air Canada
Apr 7
STL4:05 pmLambert-St Louis
5h 59m
1 stop
YHZ12:04 amHalifax Intl
Apr 8
YHZ9:00 amHalifax Intl
8h 24m
1 stop
STL3:24 pmLambert-St Louis
$331
Find similar
Air Canada
Apr 7
STL4:05 pmLambert-St Louis
5h 59m
1 stop
YHZ12:04 amHalifax Intl
Apr 8
YHZ6:55 amHalifax Intl
10h 29m
2 stops
STL3:24 pmLambert-St Louis
$336
Find similar
Air Canada
Apr 7
STL4:05 pmLambert-St Louis
5h 59m
1 stop
YOW11:04 pmOttawa
Apr 8
YOW10:15 amOttawa
6h 09m
1 stop
STL3:24 pmLambert-St Louis
$361
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Canada that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated October 27, 2025.
Use the filters below to find and compare flights from St. Louis to Canada that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisVancouver

STL - YVR

STLYVR

Lambert-St Louis

Sat 2/21

7:43 pm-11:59 pm

2 stops30h 16m

Vancouver Intl

Fri 2/27

9:10 am-7:41 pm

1 stop8h 31m

$246

St. LouisVancouver

STL - YVR

STLYVR

Lambert-St Louis

Wed 2/11

5:44 pm-10:20 pm

1 stop30h 36m

Vancouver Intl

Tue 2/17

9:30 am-4:49 pm

1 stop29h 19m

$248

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Sat 2/14

6:33 pm-10:57 am

1 stop15h 24m

Toronto Pearson Intl

Sat 2/21

11:38 am-6:03 pm

1 stop7h 25m

$279

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Tue 2/3

3:20 pm-12:48 pm

1 stop22h 28m

Calgary

Mon 2/9

1:40 pm-10:22 am

1 stop19h 42m

$302

St. LouisHalifax

STL - YHZ

STLYHZ

Lambert-St Louis

Tue 4/7

4:05 pm-12:04 am

1 stop5h 59m

Halifax Intl

Wed 4/8

9:00 am-3:24 pm

1 stop8h 24m

$331

St. LouisHalifax

STL - YHZ

STLYHZ

Lambert-St Louis

Tue 4/7

4:05 pm-12:04 am

1 stop5h 59m

Halifax Intl

Wed 4/8

6:55 am-3:24 pm

2 stops10h 29m

$336

St. LouisHalifax

STL - YHZ

STLYHZ

Lambert-St Louis

Tue 4/7

6:30 am-1:54 pm

1 stop5h 24m

Halifax Intl

Wed 4/8

7:00 am-3:21 pm

2 stops10h 21m

$342

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Wed 2/25

7:00 am-1:34 pm

1 stop5h 34m

Ottawa

Sat 2/28

9:45 am-9:00 pm

2 stops12h 15m

$372

St. LouisEdmonton

STL - YEG

STLYEG

Lambert-St Louis

Wed 12/17

6:00 am-3:09 pm

2 stops10h 09m

Edmonton

Mon 1/5

9:55 pm-11:25 pm

2 stops24h 30m

$615

St. LouisEdmonton

STL - YEG

STLYEG

Lambert-St Louis

Mon 12/8

6:00 am-3:09 pm

2 stops10h 09m

Edmonton

Sun 12/14

12:05 am-4:06 pm

2 stops15h 01m

$670

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 Canada from

How to get the cheapest flight ticket from St. Louis to Canada

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Canada?

If you aren’t able to travel during the month of January, then book flights to Canada from St. Louis during April instead. Flights to Canada in April, while not as cheap as those in January, still average around $314.

What is the cheapest day to depart on your flight to Canada?

Our data shows that Tuesday is the least expensive day to fly to Canada. Tickets to fly out on this day can be as low as $834. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from St. Louis to Canada for around $992.

What is the cheapest time of day to depart on your flight to Canada?

In the afternoon is the cheapest time of day to fly from St. Louis to Canada when you can find flight prices for as low as $898. Flying to Canada in the afternoon is an ideal time because this is during off-peak travel hours. In contrast, the most expensive time of day to depart to Canada is at noon when prices are around $1,180.

What is the cheapest Lambert-St Louis to Canada flight route?

Fly from Lambert-St Louis to Toronto Pearson Intl for the best Lambert-St Louis - Canada flight prices

How far in advance should I book a flight to Canada?

You are more likely to see cheaper flights to Canada from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Canada for around $488 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Canada from St. Louis for as low as $221 on momondo.

What cabin class options are available on Lambert-St Louis to Canada flights?

There are 4 cabin classes available to choose from on Lambert-St Louis to Canada flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on St. Louis to Canada flights?

You could potentially save up to 38% on your flight if you consider stops on a St. Louis to Canada flight.

Cheap St. Louis to Canada flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Canada

Best Price Found

$179

Fastest flight time

1h 57m

Direct flights

Every day

Airports in Canada

1 airport
The best one-way flight to Canada from St. Louis in the past 72 hours is $179. The best round-trip flight deal from St. Louis to Canada found on momondo in the last 72 hours is $620.
The fastest flight from St. Louis to Canada takes 1h 57m
Direct flights go from St. Louis to Canada every day.
There is 1 airport near Canada: Toronto Pearson Intl (YYZ)
Search flight deals

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Canada?

    Prices for flights from Lambert-St Louis Airport to Canada are refreshed on a daily basis.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to Canada?

  • How old do you have to be to fly from Lambert-St Louis Airport to Canada?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Lambert-St Louis Airport to Canada.

  • What documentation or ID do you need to fly to Canada?

    The travel and health documents required for your trip to Canada can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Canada. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from St. Louis to Canada?

Best airlines flying from St. Louis to Canada

Compare and see reviews for airlines that fly from St. Louis to Canada with momondo
Airline
Rating
Free Cancellation
Price
Air CanadaPriceFrom $158Free CancellationRating
7.1
10,367 reviews
Search Air Canada flights
DeltaPriceFrom $170Free CancellationRating
7.9
7,995 reviews
Search Delta flights
United AirlinesPriceFrom $214Free CancellationRating
7.4
8,997 reviews
Search United Airlines flights
American AirlinesPriceFrom $348Free CancellationRating
7.2
11,031 reviews
Search American Airlines flights
Alaska AirlinesPriceFrom $402Free CancellationRating
8.0
11,193 reviews
Search Alaska Airlines flights
WestJetPriceFrom $408Free CancellationRating
7.2
3,147 reviews
Search WestJet flights

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Canada?

It is quick and easy to find St. Louis to Canada flights 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 Canada that suits you.

Can I find flights from St. Louis to Canada with flexible booking policies on momondo?

All flight searches from St. Louis to Canada on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from St. Louis to Canada?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Canada from St. Louis.

I’m not ready to book a flight from St. Louis to Canada right now. Can momondo alert me if prices change?

If you are not ready to book a flight from St. Louis to Canada now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Canada and let you know when they change.

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