Canada

$131+ Cheap flights from St. Louis (STL) to Canada

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/9. Fares are subject to change and may not be available on all flights or dates of travel.
STL — YYZ
May 23 — May 301
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Cheap flight deals from St. Louis to Canada

Cheapest flights from St. Louis to Canada
Explore the most affordable flight options available from St. Louis to Canada. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 23, 2026.

This flugladen.de deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/912:10 pm
STL
-
YVR
1 stop10h 05m
Air Canada
Thu 10/17:30 am
YVR
-
STL
1 stop9h 11m
Air Canada
Deal found 4/21$257
This United Airlines deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/235:10 am
STL
-
YVR
1 stop6h 41m
United Airlines
Tue 9/292:20 pm
YVR
-
STL
1 stop7h 25m
United Airlines
Deal found 4/20$311
This Flightnetwork deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/247:05 am
STL
-
YOW
1 stop5h 00m
Air Canada
Sat 5/302:40 pm
YOW
-
STL
1 stop6h 45m
Air Canada
Deal found 4/20$313
This United Airlines deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/109:00 am
STL
-
YVR
1 stop7h 06m
United Airlines
Thu 10/151:45 pm
YVR
-
STL
1 stop16h 52m
United Airlines
Deal found 4/20$315
This Mytrip deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/117:05 am
STL
-
YOW
1 stop5h 00m
Air Canada
Tue 5/193:00 pm
YOW
-
STL
1 stop6h 25m
Air Canada
Deal found 4/21$322
This United Airlines deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/75:10 am
STL
-
YVR
1 stop6h 41m
United Airlines
Wed 7/157:00 am
YVR
-
STL
1 stop9h 17m
United Airlines
Deal found 4/20$324
This Air Canada deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/222:40 pm
STL
-
YHZ
1 stop7h 54m
Air Canada
Tue 9/299:00 am
YHZ
-
STL
1 stop7h 00m
Air Canada
Deal found 4/21$327
This Delta deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/73:57 pm
STL
-
YVR
1 stop6h 32m
Delta
Wed 7/156:00 am
YVR
-
STL
1 stop8h 51m
Delta
Deal found 4/22$328
This American Airlines deal was found by Cheapflights users on 4/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/266:00 am
STL
-
YHZ
1 stop6h 20m
American Airlines
Wed 9/92:55 pm
YHZ
-
STL
1 stop19h 44m
American Airlines
Deal found 4/19$332
This Flysmarter deal was found by Cheapflights users on 4/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/510:25 am
STL
-
YOW
1 stop5h 42m
Air Canada
Sat 5/92:40 pm
YOW
-
STL
1 stop6h 45m
Air Canada
Deal found 4/19$333
This Air Canada deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/268:55 am
STL
-
YHZ
1 stop6h 14m
Air Canada
Wed 9/99:00 am
YHZ
-
STL
1 stop7h 00m
Air Canada
Deal found 4/23$334
This Air Canada deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/158:55 am
STL
-
YHZ
1 stop6h 14m
Air Canada
Sat 8/2212:25 pm
YHZ
-
STL
1 stop8h 17m
Air Canada
Deal found 4/22$335

Find flight deals from St. Louis to Canada

Keep the following information in mind while searching for St. Louis to Canada flight deals. Data was last updated April 23, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$257
(flugladen.de)

One-way from

$138
(United Airlines)

Popular in

November

Cheapest in

June

Average price

$605

Good round-trip deal

$809 or less

Good one-way deal

$337 or less
Provider with most accurate pricing for Lambert-St Louis-Toronto (YTO) flight deals.
Provider most trusted by Cheapflights users for Lambert-St Louis-Toronto (YTO) flights.
From Lambert-St Louis to Canada
One-way flight from Lambert-St Louis to Canada
Highest demand for flights based on searches. 5% potential increase in price ($31 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($14 potential savings vs. average RT price).
Average for round-trip flights in April 2026
Price to beat on a round-trip flight from Lambert-St Louis to Canada.
Price to beat on a one-way flight from Lambert-St Louis to Canada.

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated April 23, 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. LouisVancouver

STL - YVR

STLYVR

Lambert-St Louis

Wed 9/23

5:10 am-9:51 am

1 stop6h 41m

Vancouver Intl

Tue 9/29

2:20 pm-11:45 pm

1 stop7h 25m

$311

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

7:00 am-6:17 pm

1 stop9h 17m

$324

St. LouisHalifax

STL - YHZ

STLYHZ

Lambert-St Louis

Tue 9/29

8:55 am-5:09 pm

1 stop6h 14m

Halifax Intl

Sat 10/3

9:00 am-2:00 pm

1 stop7h 00m

$327

St. LouisHalifax

STL - YHZ

STLYHZ

Lambert-St Louis

Wed 8/26

6:00 am-2:20 pm

1 stop6h 20m

Halifax Intl

Wed 9/9

2:55 pm-8:39 am

1 stop19h 44m

$332

St. LouisHalifax

STL - YHZ

STLYHZ

Lambert-St Louis

Sat 6/13

7:05 am-2:57 pm

1 stop5h 52m

Halifax Intl

Fri 6/19

1:27 pm-8:40 pm

1 stop9h 13m

$338

St. LouisHalifax

STL - YHZ

STLYHZ

Lambert-St Louis

Tue 9/29

9:23 am-11:32 pm

2 stops12h 09m

Halifax Intl

Sat 10/3

7:00 am-2:18 pm

2 stops9h 18m

$341

St. LouisHalifax

STL - YHZ

STLYHZ

Lambert-St Louis

Sat 8/15

6:30 am-11:27 pm

2 stops14h 57m

Halifax Intl

Sat 8/22

6:40 am-6:02 pm

2 stops13h 22m

$365

St. LouisHalifax

STL - YHZ

STLYHZ

Lambert-St Louis

Sun 6/14

2:15 pm-1:54 am

1 stop9h 39m

Halifax Intl

Sat 6/20

7:05 am-12:21 pm

1 stop7h 16m

$365

St. LouisHalifax

STL - YHZ

STLYHZ

Lambert-St Louis

Sat 5/16

7:05 am-12:24 am

1 stop15h 19m

Halifax Intl

Sat 5/23

4:10 pm-8:09 pm

1 stop5h 59m

$365

St. LouisHalifax

STL - YHZ

STLYHZ

Lambert-St Louis

Mon 8/10

8:55 am-12:39 am

1 stop13h 44m

Halifax Intl

Tue 8/11

4:10 pm-8:07 pm

1 stop5h 57m

$365

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/20

Showing 1-10 of 60 resultsSorted by cheapest first
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6

Best time to book a flight from St. Louis to Canada

Have a flexible travel schedule? Discover the best time to fly to Canada from St. Louis with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from St. Louis to Canada

How far ahead should I book a flight from St. Louis to Canada?

To ensure you get the cheapest price possible for a flight from St. Louis to Canada, you should look to book at least 63 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from St. Louis to Canada?

Currently, June is the cheapest month in which you can book a flight from St. Louis to Canada (average of $139). Flying from St. Louis to Canada in November is currently the most expensive (average of $219). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from STL to CA?

Find hourly flight availability from St. Louis to Canada. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 23, 2026.

It’s optimal to fly from St. Louis to Canada in the evening. By choosing this option you can save up to 47% on the cost of your flight, compared to a flight at noon.

Weekly flight availability from St. Louis to Canada

Explore weekly flight availability from St. Louis to Canada. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated April 23, 2026.

The most flights from STL to CA0 are scheduled on a Monday (2 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (2 on average).

Reviews of airlines servicing Canada

Get insights into the airlines that provide service to Canada. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Canada. Reviews last updated April 23, 2026.
Get a feel of what it's like to fly with Delta,United Airlines, andWestJet from St. Louis to Canada by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Entertainment

7.8

Food

7.2

Overall

7.9

Comfort

7.9

Boarding

8.1

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Entertainment

7.8

Food

7.2

Overall

7.9

Comfort

7.9

Boarding

8.1

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Entertainment

7.8

Food

7.2

Overall

7.9

Comfort

7.9

Boarding

8.1

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Entertainment

7.8

Food

7.2

Overall

7.9

Comfort

7.9

Boarding

8.1

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Entertainment

7.8

Food

7.2

Overall

7.9

Comfort

7.9

Boarding

8.1

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Entertainment

7.8

Food

7.2

Overall

7.9

Comfort

7.9

Boarding

8.1

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Canada. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly from for flights from St. Louis to Canada?

    Lambert-St Louis (STL), located 12.7 mi from the city center, is the airport you fly out of when you book flights from St. Louis to Canada.

  • How long is the flight from St. Louis to Canada?

    There are many flights that can get you from St. Louis to Canada in 5h 52m. Fly via United Airlines, Air Canada, or Delta to get the fastest option. The distance between St. Louis and Canada is about 1438 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from St. Louis to Canada one-way?

    One-way options have recently been found by users for as low as $137 on Delta. Other airlines that offer cheap prices include Air Canada from $141 and United Airlines from $142 one-way.

  • What are the most popular routes from St. Louis to Canada?

  • What are the most reliable airlines from St. Louis to Canada?

    No one likes to see their flight delayed. When booking a flight from St. Louis to Canada consider choosing Air Canada (83%), Jazz (83%) or United Airlines (79%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from St. Louis to Canada?

    Looking at all options, your cheapest flight can be booked for $253. While the most popular route (Lambert-St Louis - Toronto Pearson Intl) can be booked for $402 on average, our data indicates $1,333 when flying from St. Louis to Canada.

  • Can I find deals for flights from St. Louis to Canada that include hotel bookings?

    Yes. In addition to deals on St. Louis to Canada flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Canada?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Canada.

  • Can I find deals for business class flights from St. Louis to Canada?

    Yes. Cheapflights offers flight deals from St. Louis to Canada by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from St. Louis to Canada?

    Currently, June is the cheapest month in which you can book a flight from St. Louis to Canada (average of $139). Flying from St. Louis to Canada in November is currently the most expensive (average of $219). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for St. Louis to Canada

See prices for flight routes from nearby airports that may be better suited for you.

Top 6 airlines flying from St. Louis to Canada

Discover the top 6 airlines that operate flights from St. Louis to Canada. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 23, 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$139Average$618FlexibilityNo cancel feeOn-time67%
DeltaCheapest$142Average$587FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$199Average$588FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$270Average$590FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$402Average$557FlexibilityNo cancel feeOn-time75%
WestJetCheapest$499Average$647FlexibilityNo cancel feeOn-time60%

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