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Cheap flights from St. Louis to Canada from $79

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 1/12. 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
0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
5:11 pm - 11:46 amSTL-YYZ
17h 35m1 stop
Multiple Airlines Logo
5:15 pm - 10:34 pmYYZ-STL
30h 19m1 stop
$220Multiple Airlines
Find Deal
Fri, Jan 9 - Fri, Jan 16
Multiple Airlines Logo
8:22 pm - 11:12 amSTL-YVR
16h 50m1 stop
Multiple Airlines Logo
9:10 am - 12:50 pmYVR-STL
25h 40m2 stops
$231Multiple Airlines
Find Deal
Wed, Jan 28 - Sun, Feb 1
American Airlines Logo
10:04 am - 9:29 pmSTL-YYZ
10h 25m1 stop
American Airlines Logo
6:00 am - 1:56 pmYYZ-STL
8h 56m1 stop
$276American Airlines
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Sat, Feb 14 - Sat, Feb 21
Air Canada Logo
4:05 pm - 12:41 amSTL-YHZ
6h 36m1 stop
Air Canada Logo
9:00 am - 3:29 pmYHZ-STL
8h 29m1 stop
$320Air Canada
Find Deal
Wed, Jan 21 - Fri, Jan 23
Air Canada Logo
4:05 pm - 12:41 amSTL-YHZ
6h 36m1 stop
Air Canada Logo
5:35 am - 3:29 pmYHZ-STL
11h 54m2 stops
$325Air Canada
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Wed, Jan 21 - Fri, Jan 23
American Airlines Logo
6:44 pm - 12:48 pmSTL-YYC
19h 04m1 stop
American Airlines Logo
1:40 pm - 10:20 amYYC-STL
19h 40m1 stop
$331American Airlines
Find Deal
Mon, Jan 12 - Mon, Jan 19
United Airlines Logo
8:30 am - 11:54 pmSTL-YOW
14h 24m1 stop
United Airlines Logo
5:55 pm - 11:59 pmYOW-STL
7h 04m1 stop
$351United Airlines
Find Deal
Thu, Jan 22 - Mon, Jan 26
United Airlines Logo
7:00 am - 2:14 pmSTL-YHZ
5h 14m1 stop
United Airlines Logo
9:00 am - 3:29 pmYHZ-STL
8h 29m1 stop
$393United Airlines
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Thu, Feb 19 - Thu, Feb 26
WestJet Logo
6:30 am - 7:28 amSTL-YHZ
22h 58m2 stops
WestJet Logo
6:10 pm - 9:06 amYHZ-STL
16h 56m2 stops
$400WestJet
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Thu, Feb 19 - Thu, Feb 26
WestJet Logo
3:40 pm - 11:03 amSTL-YWG
19h 23m1 stop
WestJet Logo
6:55 pm - 11:25 pmYWG-STL
28h 30m2 stops
$538WestJet
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Thu, Jan 8 - Sat, Jan 10

American Airlines flights from St. Louis to Canada

Our best American Airlines deals on St. Louis to Canada flight tickets
American Airlines
Feb 14
STL10:04 amLambert-St Louis
10h 25m
1 stop
YYZ9:29 pmToronto Pearson Intl
Feb 21
YYZ6:00 amToronto Pearson Intl
8h 56m
1 stop
STL1:56 pmLambert-St Louis
$276
Find similar
American Airlines
Jan 12
STL6:44 pmLambert-St Louis
19h 04m
1 stop
YYC12:48 pmCalgary
Jan 19
YYC1:40 pmCalgary
19h 40m
1 stop
STL10:20 amLambert-St Louis
$331
Find similar
American Airlines
Jan 12
STL6:44 pmLambert-St Louis
19h 24m
1 stop
YUL3:08 pmMontreal Pierre Elliott Trudeau Intl
Jan 19
YUL3:50 pmMontreal Pierre Elliott Trudeau Intl
19h 30m
1 stop
STL10:20 amLambert-St Louis
$372
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Air Canada flights from St. Louis to Canada

Our best Air Canada deals on St. Louis to Canada flight tickets
Air Canada
Jan 21
STL4:05 pmLambert-St Louis
6h 36m
1 stop
YHZ12:41 amHalifax Intl
Jan 23
YHZ9:00 amHalifax Intl
8h 29m
1 stop
STL3:29 pmLambert-St Louis
$320
Find similar
Air Canada
Jan 21
STL4:05 pmLambert-St Louis
6h 36m
1 stop
YHZ12:41 amHalifax Intl
Jan 23
YHZ5:35 amHalifax Intl
11h 54m
2 stops
STL3:29 pmLambert-St Louis
$325
Find similar
Air Canada
Jan 16
STL4:05 pmLambert-St Louis
2h 01m
YYZ7:06 pmToronto Pearson Intl
Jan 18
YYZ2:00 pmToronto Pearson Intl
2h 29m
STL3:29 pmLambert-St Louis
$347
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 November 30, 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. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Fri 1/9

5:11 pm-11:46 am

1 stop17h 35m

Toronto Pearson Intl

Fri 1/16

5:15 pm-10:34 pm

1 stop30h 19m

$220

St. LouisVancouver

STL - YVR

STLYVR

Lambert-St Louis

Wed 1/28

8:22 pm-11:12 am

1 stop16h 50m

Vancouver Intl

Sun 2/1

9:10 am-12:50 pm

2 stops25h 40m

$231

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Sat 2/14

10:04 am-9:29 pm

1 stop10h 25m

Toronto Pearson Intl

Sat 2/21

6:00 am-1:56 pm

1 stop8h 56m

$276

St. LouisHalifax

STL - YHZ

STLYHZ

Lambert-St Louis

Wed 1/21

4:05 pm-12:41 am

1 stop6h 36m

Halifax Intl

Fri 1/23

9:00 am-3:29 pm

1 stop8h 29m

$320

St. LouisHalifax

STL - YHZ

STLYHZ

Lambert-St Louis

Wed 1/21

4:05 pm-12:41 am

1 stop6h 36m

Halifax Intl

Fri 1/23

5:35 am-3:29 pm

2 stops11h 54m

$325

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Mon 1/12

6:44 pm-12:48 pm

1 stop19h 04m

Calgary

Mon 1/19

1:40 pm-10:20 am

1 stop19h 40m

$331

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Thu 1/22

8:30 am-11:54 pm

1 stop14h 24m

Ottawa

Mon 1/26

5:55 pm-11:59 pm

1 stop7h 04m

$351

St. LouisHalifax

STL - YHZ

STLYHZ

Lambert-St Louis

Thu 2/19

7:00 am-2:14 pm

1 stop5h 14m

Halifax Intl

Thu 2/26

9:00 am-3:29 pm

1 stop8h 29m

$393

St. LouisHalifax

STL - YHZ

STLYHZ

Lambert-St Louis

Thu 2/19

6:30 am-7:28 am

2 stops22h 58m

Halifax Intl

Thu 2/26

6:10 pm-9:06 am

2 stops16h 56m

$400

St. LouisWinnipeg

STL - YWG

STLYWG

Lambert-St Louis

Thu 1/8

3:40 pm-11:03 am

1 stop19h 23m

Winnipeg

Sat 1/10

6:55 pm-11:25 pm

2 stops28h 30m

$538

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 $813. 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 $994.

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 $891. 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 32% 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

$399

Fastest flight time

1h 55m

Direct flights

Tue, Wed, Thu, Fri, Sat and Sun

Airports in Canada

1 airport
The best one-way flight to Canada from St. Louis in the past 72 hours is $399. The best round-trip flight deal from St. Louis to Canada found on momondo in the last 72 hours is $578.
The fastest flight from St. Louis to Canada takes 1h 55m
Direct flights go from St. Louis to Canada on Tuesday, Wednesday, Thursday, Friday, Saturday and Sunday. The only airline offering direct flights is Air Canada.
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 $152Free CancellationRating
7.1
10,484 reviews
Search Air Canada flights
DeltaPriceFrom $170Free CancellationRating
7.9
8,011 reviews
Search Delta flights
United AirlinesPriceFrom $199Free CancellationRating
7.4
9,057 reviews
Search United Airlines flights
American AirlinesPriceFrom $270Free CancellationRating
7.2
11,043 reviews
Search American Airlines flights
Alaska AirlinesPriceFrom $402Free CancellationRating
8.0
11,378 reviews
Search Alaska Airlines flights
WestJetPriceFrom $434Free CancellationRating
7.2
3,184 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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