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Cheap flights from St. Louis to Canada from $115

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 1/21. 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
9:45 pm - 2:40 pm
STL
-
YVR
18h 55m2 stops
Multiple Airlines Logo
3:40 pm - 8:50 pm
YVR
-
STL
27h 10m1 stop
$229Multiple Airlines
Mon, Feb 2 - Sun, Feb 8
Multiple Airlines Logo
9:32 pm - 10:20 pm
STL
-
YVR
26h 48m1 stop
Multiple Airlines Logo
3:40 pm - 8:50 pm
YVR
-
STL
27h 10m1 stop
$233Multiple Airlines
Sun, Feb 1 - Sun, Feb 8
Multiple Airlines Logo
3:49 pm - 2:20 pm
STL
-
YYZ
21h 31m1 stop
Multiple Airlines Logo
7:15 am - 10:27 pm
YYZ
-
STL
16h 12m1 stop
$235Multiple Airlines
Wed, Feb 18 - Tue, Feb 24
Air Canada Logo
2:20 pm - 12:24 am
STL
-
YHZ
8h 04m1 stop
Air Canada Logo
7:05 am - 12:06 pm
YHZ
-
STL
7h 01m1 stop
$323Air Canada
Wed, May 13 - Sat, May 16
Air Canada Logo
7:30 am - 8:30 pm
STL
-
YHZ
11h 00m2 stops
Air Canada Logo
7:05 am - 12:06 pm
YHZ
-
STL
7h 01m1 stop
$328Air Canada
Wed, May 13 - Sat, May 16
United Airlines Logo
8:05 am - 9:18 pm
STL
-
YOW
12h 13m1 stop
United Airlines Logo
5:11 pm - 10:58 pm
YOW
-
STL
6h 47m1 stop
$349United Airlines
Mon, Feb 2 - Fri, Feb 6
United Airlines Logo
6:30 am - 4:30 pm
STL
-
YOW
9h 00m2 stops
United Airlines Logo
5:11 pm - 10:58 pm
YOW
-
STL
6h 47m1 stop
$358United Airlines
Mon, Feb 2 - Fri, Feb 6
American Airlines Logo
6:36 pm - 3:04 pm
STL
-
YUL
19h 28m1 stop
American Airlines Logo
3:45 pm - 9:33 am
YUL
-
STL
18h 48m1 stop
$362American Airlines
Wed, Feb 18 - Mon, Feb 23
American Airlines Logo
6:36 pm - 3:04 pm
STL
-
YUL
19h 28m1 stop
American Airlines Logo
3:45 pm - 11:48 pm
YUL
-
STL
9h 03m1 stop
$363American Airlines
Thu, Feb 19 - Wed, Feb 25
WestJet Logo
6:32 am - 12:35 am
STL
-
YWG
18h 03m2 stops
WestJet Logo
5:44 pm - 11:15 pm
YWG
-
STL
5h 31m1 stop
$520WestJet
Fri, Mar 13 - Mon, Mar 16

Air Canada flights from St. Louis to Canada

Our best Air Canada deals on St. Louis to Canada flight tickets
Air Canada
May 13
STL2:20 pmLambert-St Louis
8h 04m
1 stop
YHZ12:24 amHalifax Intl
May 16
YHZ6:00 amHalifax Intl
8h 06m
1 stop
STL12:06 pmLambert-St Louis
$323
Air Canada
May 13
STL7:30 amLambert-St Louis
11h 00m
2 stops
YHZ8:30 pmHalifax Intl
May 16
YHZ7:05 amHalifax Intl
7h 01m
1 stop
STL12:06 pmLambert-St Louis
$328
Air Canada
Jun 18
STL7:25 amLambert-St Louis
5h 44m
1 stop
YHZ3:09 pmHalifax Intl
Jun 28
YHZ5:45 amHalifax Intl
8h 36m
2 stops
STL12:21 pmLambert-St Louis
$331

United Airlines flights from St. Louis to Canada

Our best United Airlines deals on St. Louis to Canada flight tickets
United Airlines
Feb 2
STL8:30 amLambert-St Louis
14h 24m
1 stop
YOW11:54 pmOttawa
Feb 6
YOW5:55 pmOttawa
7h 04m
1 stop
STL11:59 pmLambert-St Louis
$349
United Airlines
Feb 2
STL6:30 amLambert-St Louis
9h 00m
2 stops
YOW4:30 pmOttawa
Feb 6
YOW5:11 pmOttawa
6h 47m
1 stop
STL10:58 pmLambert-St Louis
$358
United Airlines
Feb 2
STL11:20 amLambert-St Louis
9h 36m
2 stops
YOW9:56 pmOttawa
Feb 6
YOW7:27 pmOttawa
15h 46m
1 stop
STL10:13 amLambert-St Louis
$359

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 January 8, 2026.
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

Mon 2/2

9:45 pm-2:40 pm

2 stops18h 55m

Vancouver Intl

Sun 2/8

3:40 pm-8:50 pm

1 stop27h 10m

$229

St. LouisVancouver

STL - YVR

STLYVR

Lambert-St Louis

Sun 2/1

9:32 pm-10:20 pm

1 stop26h 48m

Vancouver Intl

Sun 2/8

3:40 pm-8:50 pm

1 stop27h 10m

$233

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Wed 2/18

3:49 pm-2:20 pm

1 stop21h 31m

Toronto Pearson Intl

Tue 2/24

7:15 am-10:27 pm

1 stop16h 12m

$235

St. LouisHalifax

STL - YHZ

STLYHZ

Lambert-St Louis

Wed 5/13

2:20 pm-12:24 am

1 stop8h 04m

Halifax Intl

Sat 5/16

7:05 am-12:06 pm

1 stop7h 01m

$323

St. LouisHalifax

STL - YHZ

STLYHZ

Lambert-St Louis

Wed 5/13

7:30 am-8:30 pm

2 stops11h 00m

Halifax Intl

Sat 5/16

7:05 am-12:06 pm

1 stop7h 01m

$328

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Mon 2/2

8:05 am-9:18 pm

1 stop12h 13m

Ottawa

Fri 2/6

5:11 pm-10:58 pm

1 stop6h 47m

$349

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Mon 2/2

6:30 am-4:30 pm

2 stops9h 00m

Ottawa

Fri 2/6

5:11 pm-10:58 pm

1 stop6h 47m

$358

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Wed 2/18

6:36 pm-3:04 pm

1 stop19h 28m

Montreal Pierre Elliott Trudeau Intl

Mon 2/23

3:45 pm-9:33 am

1 stop18h 48m

$362

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Thu 2/19

6:36 pm-3:04 pm

1 stop19h 28m

Montreal Pierre Elliott Trudeau Intl

Wed 2/25

3:45 pm-11:48 pm

1 stop9h 03m

$363

St. LouisWinnipeg

STL - YWG

STLYWG

Lambert-St Louis

Fri 3/13

6:32 am-12:35 am

2 stops18h 03m

Winnipeg

Mon 3/16

5:44 pm-11:15 pm

1 stop5h 31m

$520

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 April, then book flights to Canada from St. Louis during June instead. Flights to Canada in June, while not as cheap as those in April, still average around $363.

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 $808. 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 $977.

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 $883. 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 $1,182.

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

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

$287

Fastest flight time

1h 51m

Direct flights

Every day

Airports in Canada

513 airports
The best one-way flight to Canada from St. Louis in the past 72 hours is $287. The best round-trip flight deal from St. Louis to Canada found on momondo in the last 72 hours is $637.
The fastest flight from St. Louis to Canada takes 1h 51m
Direct flights go from St. Louis to Canada every day.
There are 513 airports in Canada. From St. Louis there are direct flights to Montreal Pierre Elliott Trudeau Intl (YUL), 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
DeltaPriceFrom $169Free CancellationRating
7.9
8,030 reviews
Search Delta flights
Air CanadaPriceFrom $179Free CancellationRating
7.1
10,603 reviews
Search Air Canada flights
United AirlinesPriceFrom $199Free CancellationRating
7.4
9,141 reviews
Search United Airlines flights
American AirlinesPriceFrom $270Free CancellationRating
7.2
11,095 reviews
Search American Airlines flights
Alaska AirlinesPriceFrom $402Free CancellationRating
8.0
11,668 reviews
Search Alaska Airlines flights
WestJetPriceFrom $439Free CancellationRating
7.2
3,235 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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Find better results for your trip to Canada

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