Cheap flights from St. Louis to Canada from $138

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 6/16. 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
4:52 pm - 9:50 pm
STL
-
YYC
29h 58m
1 stop
Multiple Airlines Logo
7:00 am - 5:37 pm
YYC
-
STL
9h 37m
1 stop
$326Multiple Airlines
Mon, Jul 6 - Thu, Jul 16
United Airlines Logo
5:10 am - 9:51 am
STL
-
YVR
6h 41m
1 stop
United Airlines Logo
8:35 am - 11:57 pm
YVR
-
STL
13h 22m
1 stop
$326United Airlines
Tue, Jul 7 - Wed, Jul 15
Multiple Airlines Logo
6:33 pm - 9:50 pm
STL
-
YYC
28h 17m
1 stop
Multiple Airlines Logo
7:00 am - 5:37 pm
YYC
-
STL
9h 37m
1 stop
$327Multiple Airlines
Tue, Jul 7 - Thu, Jul 16
American Airlines Logo
6:06 am - 12:23 pm
STL
-
YVR
8h 17m
1 stop
American Airlines Logo
6:00 am - 10:00 pm
YVR
-
STL
14h 00m
1 stop
$330American Airlines
Wed, Sep 23 - Tue, Sep 29
Multiple Airlines Logo
6:33 pm - 5:10 pm
STL
-
YYC
23h 37m
1 stop
Multiple Airlines Logo
7:00 am - 5:30 pm
YYC
-
STL
9h 30m
1 stop
$331Multiple Airlines
Thu, Aug 27 - Sun, Aug 30
Delta Logo
2:30 pm - 10:28 pm
STL
-
YVR
9h 58m
1 stop
Delta Logo
6:00 am - 3:10 pm
YVR
-
STL
7h 10m
1 stop
$369Delta
Tue, Jul 28 - Thu, Aug 6
Air Canada Logo
2:15 pm - 9:16 pm
STL
-
YOW
6h 01m
1 stop
Air Canada Logo
10:00 am - 2:02 pm
YOW
-
STL
5h 02m
1 stop
$371Air Canada
Tue, Jun 16 - Wed, Jul 15
Air Canada Logo
8:55 am - 8:29 pm
STL
-
YHZ
9h 34m
2 stops
Air Canada Logo
9:00 am - 2:00 pm
YHZ
-
STL
7h 00m
1 stop
$375Air Canada
Wed, Sep 16 - Thu, Sep 24
American Airlines Logo
7:03 am - 5:44 pm
STL
-
YYZ
9h 41m
1 stop
American Airlines Logo
7:25 am - 2:02 pm
YYZ
-
STL
7h 37m
1 stop
$375American Airlines
Tue, Jun 16 - Tue, Jun 23
Delta Logo
12:10 pm - 8:22 pm
STL
-
YVR
10h 12m
1 stop
Delta Logo
6:50 am - 6:00 pm
YVR
-
STL
9h 10m
1 stop
$391Delta
Mon, Sep 21 - Fri, Sep 25

Air Canada flights from St. Louis to Canada

Our best Air Canada deals on St. Louis to Canada flight tickets
Air Canada
Jun 16
STL2:15 pmLambert-St Louis
6h 01m
1 stop
YOW9:16 pmOttawa
Jul 15
YOW10:00 amOttawa
5h 02m
1 stop
STL2:02 pmLambert-St Louis
$371
Air Canada
Sep 16
STL8:55 amLambert-St Louis
9h 34m
2 stops
YHZ8:29 pmHalifax Intl
Sep 24
YHZ9:00 amHalifax Intl
7h 00m
1 stop
STL2:00 pmLambert-St Louis
$375
Air Canada
Sep 16
STL8:55 amLambert-St Louis
9h 34m
2 stops
YHZ8:29 pmHalifax Intl
Sep 24
YHZ9:00 amHalifax Intl
7h 00m
1 stop
STL2:00 pmLambert-St Louis
$376

United Airlines flights from St. Louis to Canada

Our best United Airlines deals on St. Louis to Canada flight tickets
United Airlines
Jul 7
STL5:10 amLambert-St Louis
6h 41m
1 stop
YVR9:51 amVancouver Intl
Jul 15
YVR8:35 amVancouver Intl
13h 22m
1 stop
STL11:57 pmLambert-St Louis
$326
United Airlines
Oct 10
STL7:00 amLambert-St Louis
15h 49m
1 stop
YVR8:49 pmVancouver Intl
Oct 15
YVR2:20 pmVancouver Intl
7h 25m
1 stop
STL11:45 pmLambert-St Louis
$358
United Airlines
Jul 7
STL5:10 amLambert-St Louis
6h 41m
1 stop
YVR9:51 amVancouver Intl
Jul 15
YVR8:35 amVancouver Intl
13h 22m
1 stop
STL11:57 pmLambert-St Louis
$367

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 May 20, 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

Cheapest round-trip

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Mon 7/6

4:52 pm-9:50 pm

1 stop29h 58m

Calgary

Thu 7/16

7:00 am-5:37 pm

1 stop9h 37m

$326

St. LouisVancouver

STL - YVR

STLYVR

Lambert-St Louis

Tue 7/7

5:10 am-9:51 am

1 stop6h 41m

Vancouver Intl

Wed 7/15

8:35 am-11:57 pm

1 stop13h 22m

$326

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Tue 7/7

6:33 pm-9:50 pm

1 stop28h 17m

Calgary

Thu 7/16

7:00 am-5:37 pm

1 stop9h 37m

$327

St. LouisVancouver

STL - YVR

STLYVR

Lambert-St Louis

Wed 9/23

6:06 am-12:23 pm

1 stop8h 17m

Vancouver Intl

Tue 9/29

6:00 am-10:00 pm

1 stop14h 00m

$330

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Thu 8/27

6:33 pm-5:10 pm

1 stop23h 37m

Calgary

Sun 8/30

7:00 am-5:30 pm

1 stop9h 30m

$331

St. LouisVancouver

STL - YVR

STLYVR

Lambert-St Louis

Tue 7/28

2:30 pm-10:28 pm

1 stop9h 58m

Vancouver Intl

Thu 8/6

6:00 am-3:10 pm

1 stop7h 10m

$369
Quickest round-trip

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Tue 6/16

2:15 pm-9:16 pm

1 stop6h 01m

Ottawa

Wed 7/15

10:00 am-2:02 pm

1 stop5h 02m

$371

St. LouisHalifax

STL - YHZ

STLYHZ

Lambert-St Louis

Wed 9/16

8:55 am-8:29 pm

2 stops9h 34m

Halifax Intl

Thu 9/24

9:00 am-2:00 pm

1 stop7h 00m

$375

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Tue 6/16

7:03 am-5:44 pm

1 stop9h 41m

Toronto Pearson Intl

Tue 6/23

7:25 am-2:02 pm

1 stop7h 37m

$375

St. LouisVancouver

STL - YVR

STLYVR

Lambert-St Louis

Mon 9/21

12:10 pm-8:22 pm

1 stop10h 12m

Vancouver Intl

Fri 9/25

6:50 am-6:00 pm

1 stop9h 10m

$391

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 July, then book flights to Canada from St. Louis during June instead. Flights to Canada in June, while not as cheap as those in July, still average around $139.

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

Our data shows that Sunday is the least expensive day to fly to Canada. Tickets to fly out on this day can be as low as $793. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from St. Louis to Canada for around $946.

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 $797. 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 $1,060.

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 St. Louis to Canada flights?

There are 4 cabin classes available to choose from on 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

$346

Fastest flight time

1h 51m

Direct flights

Every day

Airports in Canada

515 airports
The best one-way flight to Canada from St. Louis in the past 72 hours is $346. The best round-trip flight deal from St. Louis to Canada found on momondo in the last 72 hours is $566.
The fastest flight from St. Louis to Canada takes 1h 51m
Direct flights go from St. Louis to Canada every day.
There are 515 airports in Canada. From St. Louis there are direct flights to Montreal Pierre Elliott Trudeau Intl (YUL), Vancouver Intl (YVR), Toronto Pearson Intl (YYZ).

Frequently asked questions about flying from St. Louis to Canada

  • 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 $139Free CancellationRating
7.1
11,065 reviews
Search Air Canada flights
DeltaPriceFrom $151Free CancellationRating
7.9
8,457 reviews
Search Delta flights
United AirlinesPriceFrom $217Free CancellationRating
7.4
9,738 reviews
Search United Airlines flights
American AirlinesPriceFrom $270Free CancellationRating
7.1
11,645 reviews
Search American Airlines flights
Alaska AirlinesPriceFrom $402Free CancellationRating
7.9
12,384 reviews
Search Alaska Airlines flights
WestJetPriceFrom $479Free CancellationRating
7.2
3,340 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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1 adult
Fri 6/19
Fri 6/26

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