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St. Louis

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

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 1/12. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — STL
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheap flight deals from Canada to St. Louis

Cheapest flights from Canada to St. Louis
Explore the most affordable flight options available from Canada to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

This Delta deal was found by Cheapflights users on 12/16. 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.
Fri 12/261:15 pmYVR - STL
1 stop6h 19mDelta
Wed 12/317:20 amSTL - YVR
1 stop11h 22mDelta
Deal found 12/16$399
This Kiwi.com deal was found by Cheapflights users on 12/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/259:35 amYYZ - STL
2 stops25h 27mMultiple Airlines
Sun 1/181:35 pmSTL - YYZ
1 stop16h 12mMultiple Airlines
Deal found 12/16$501
This Air Canada deal was found by Cheapflights users on 12/16. 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 12/246:30 pmYVR - STL
2 stops18h 59mAir Canada
Wed 12/314:05 pmSTL - YVR
1 stop10h 45mAir Canada
Deal found 12/16$515
This Kiwi.com deal was found by Cheapflights users on 12/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/229:00 amYVR - STL
2 stops11h 16mWestJet
Mon 12/296:05 amSTL - YVR
1 stop7h 23mWestJet
Deal found 12/17$522
This United Airlines deal was found by Cheapflights users on 12/16. 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 12/248:45 amYVR - STL
1 stop11h 37mUnited Airlines
Thu 1/19:00 amSTL - YVR
1 stop14h 10mUnited Airlines
Deal found 12/16$525
This FlightHub deal was found by Cheapflights users on 12/17. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/219:00 amYVR - STL
2 stops11h 16mWestJet
Mon 12/296:29 amSTL - YVR
2 stops11h 31mWestJet
Deal found 12/17$532
This WestJet deal was found by Cheapflights users on 12/16. 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 WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/219:00 amYVR - STL
2 stops11h 16mWestJet
Wed 12/3111:59 amSTL - YVR
1 stop25h 29mWestJet
Deal found 12/16$539
This FlightHub deal was found by Cheapflights users on 12/16. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/219:00 amYVR - STL
2 stops24h 12mWestJet
Tue 12/306:29 amSTL - YVR
2 stops11h 31mWestJet
Deal found 12/16$549
This FlightHub deal was found by Cheapflights users on 12/16. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/219:00 amYVR - STL
2 stops24h 12mWestJet
Sun 12/287:06 pmSTL - YVR
1 stop18h 22mWestJet
Deal found 12/16$550
This Delta deal was found by Cheapflights users on 12/16. 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.
Thu 12/2512:45 pmYVR - STL
1 stop7h 31mDelta
Thu 1/17:20 amSTL - YVR
2 stops15h 34mDelta
Deal found 12/16$552
This American Airlines deal was found by Cheapflights users on 12/16. 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.
Fri 12/196:30 amYYC - STL
1 stop12h 00mAmerican Airlines
Fri 1/25:16 amSTL - YYC
1 stop7h 23mAmerican Airlines
Deal found 12/16$555
This Air Canada deal was found by Cheapflights users on 12/16. 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.
Thu 12/252:00 pmYYZ - STL
Nonstop2h 29mAir Canada
Sun 1/184:05 pmSTL - YYZ
Nonstop2h 01mAir Canada
Deal found 12/16$560

Find flight deals from Canada to St. Louis

Keep the following information in mind while searching for Canada to St. Louis flight deals. Data was last updated December 18, 2025.

Round-trip from

$217
(Kiwi.com)

One-way from

$131
(Kiwi.com)

Popular in

September

Cheapest in

June

Average price

$518

Good round-trip deal

$542 or less
From Canada to Lambert-St Louis
Search Deals
One-way flight from Canada to Lambert-St Louis
Search Deals
High demand for flights, 1% potential price rise
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Canada to Lambert-St Louis.
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Canada to St. Louis 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 December 18, 2025.
Use the filters below to find and compare flights from Canada to St. Louis that are best for you.

Fly from

Canada

Fly to

St. Louis

Route

Depart

Return

Price

VancouverSt. Louis

YVR - STL

YVRSTL

Vancouver Intl

Thu 1/8

3:40 pm-12:12 pm

1 stop18h 32m

Lambert-St Louis

Thu 2/26

10:11 pm-10:20 pm

1 stop26h 09m

$240

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Thu 1/22

7:10 am-11:33 pm

1 stop17h 23m

Lambert-St Louis

Mon 1/26

10:16 am-12:11 am

1 stop12h 55m

$242

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Thu 1/8

8:00 pm-12:12 pm

1 stop17h 12m

Lambert-St Louis

Sun 1/11

12:37 pm-7:00 am

2 stops17h 23m

$252

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Wed 1/14

5:15 pm-10:34 pm

1 stop30h 19m

Lambert-St Louis

Wed 1/21

5:42 pm-12:11 am

1 stop29h 29m

$255

VancouverSt. Louis

YVR - STL

YVRSTL

Vancouver Intl

Thu 1/29

5:30 pm-8:48 pm

1 stop25h 18m

Lambert-St Louis

Mon 2/2

8:22 pm-4:48 pm

2 stops22h 26m

$255

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Thu 1/22

4:20 pm-11:33 pm

1 stop8h 13m

Lambert-St Louis

Sun 1/25

5:42 pm-5:13 pm

1 stop22h 31m

$274

HalifaxSt. Louis

YHZ - STL

YHZSTL

Halifax Intl

Tue 1/27

9:00 am-3:29 pm

1 stop8h 29m

Lambert-St Louis

Mon 2/2

4:05 pm-12:06 am

1 stop6h 01m

$277

HalifaxSt. Louis

YHZ - STL

YHZSTL

Halifax Intl

Tue 1/27

3:15 pm-10:58 pm

2 stops9h 43m

Lambert-St Louis

Mon 2/2

6:40 pm-2:31 pm

2 stops17h 51m

$283

VancouverSt. Louis

YVR - STL

YVRSTL

Vancouver Intl

Wed 1/7

3:45 pm-12:12 pm

2 stops18h 27m

Lambert-St Louis

Thu 2/26

10:11 pm-10:20 pm

1 stop26h 09m

$283

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Tue 1/6

7:15 am-10:33 pm

1 stop16h 18m

Lambert-St Louis

Fri 1/9

5:11 pm-2:20 pm

1 stop20h 09m

$301

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 60 results
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Best time to book a flight from Canada to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Canada 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 Canada to St. Louis

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

Currently, August is the cheapest month in which you can book a flight from Canada to St. Louis (average of $196). Flying from Canada to St. Louis in September is currently the most expensive (average of $344). 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 CA to STL?

Find hourly flight availability from Canada to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2025.

When flying from Canada to St. Louis, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 14% versus a flight at noon.

What is the cheapest day to fly from Canada to St. Louis?

Use this chart to determine the cheapest time to fly round-trip from Canada to St. Louis. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Canada to St. Louis flight should consider departing on Friday afternoons when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Canada to St. Louis

Explore weekly flight availability from Canada to St. Louis. 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 December 18, 2025.

The most flights from CA0 to STL 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 St. Louis

Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated December 18, 2025.
Read reviews from past customers who have flown Alaska Airlines, Delta, and United Airlines from Canada to St. Louis. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,477 reviews

Food

7.1

Boarding

8.1

Entertainment

7.0

Crew

8.5

Overall

8.0

Comfort

7.8

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
Alaska Airlines
8.0
Very good
11,477 reviews
Alaska Airlines
8.0
Very good
11,477 reviews

Food

7.1

Boarding

8.1

Entertainment

7.0

Crew

8.5

Overall

8.0

Comfort

7.8

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
Delta
7.9
Good
8,005 reviews
Alaska Airlines
8.0
Very good
11,477 reviews

Food

7.1

Boarding

8.1

Entertainment

7.0

Crew

8.5

Overall

8.0

Comfort

7.8

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
United Airlines
7.4
Good
9,092 reviews
Alaska Airlines
8.0
Very good
11,477 reviews

Food

7.1

Boarding

8.1

Entertainment

7.0

Crew

8.5

Overall

8.0

Comfort

7.8

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
American Airlines
7.2
Good
11,055 reviews
Alaska Airlines
8.0
Very good
11,477 reviews

Food

7.1

Boarding

8.1

Entertainment

7.0

Crew

8.5

Overall

8.0

Comfort

7.8

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
Air Canada
7.1
Good
10,534 reviews
Alaska Airlines
8.0
Very good
11,477 reviews

Food

7.1

Boarding

8.1

Entertainment

7.0

Crew

8.5

Overall

8.0

Comfort

7.8

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.

Related info for your journey

Find useful and relevant information for your journey from Canada to St. Louis. 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 into for flights to St. Louis from Canada?

    Most people fly into Lambert-St Louis (STL) if they book a flight to St. Louis from Canada. Lambert-St Louis is conveniently located just 12.7 mi from St. Louis’s city center.

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

    There are many flights that can get you from Canada to St. Louis in 7h 58m. Fly via Air Canada, United Airlines, or Delta to get the fastest option. The distance from Canada to St. Louis is about 841 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    One-way options have recently been found by users for as low as $157 on Alaska Airlines. Other airlines that offer cheap prices include United Airlines from $164 and Air Canada from $169 one-way.

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

    Most travelers choose Toronto Pearson Intl - Lambert-St Louis, Montreal Pierre Elliott Trudeau Intl - Lambert-St Louis or Vancouver Intl - Lambert-St Louis when deciding on the best route from Canada to St. Louis.

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

    Consider United Airlines (87%), Air Canada (77%) or Jazz (77%) when booking your flight. These represent the most reliable airlines when flying from Canada to St. Louis.

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

    Looking at all options, your cheapest flight can be booked for $368. While the most popular route (Toronto Pearson Intl - Lambert-St Louis) can be booked for $221 on average, our data indicates $1,089 when flying from Canada to St. Louis.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Canada to St. Louis 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 Canada to St. Louis?

    Currently, August is the cheapest month in which you can book a flight from Canada to St. Louis (average of $196). Flying from Canada to St. Louis in September is currently the most expensive (average of $344). 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

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Edwardsville
O'Fallon
Fairview Heights
Maryland Heights
Collinsville
Swansea
Eureka
Glencoe
St. Peters
Chesterfield
Alton
Farmington
Festus

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Alternative routes for Canada to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Canada to St. Louis

Discover the top 5 airlines that operate flights from Canada to St. Louis. 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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$288Average$442FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$295Average$483FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$324Average$564FlexibilityNo cancel feeOn-time67%
Alaska AirlinesCheapest$344Average$432FlexibilityNo cancel feeOn-time75%
DeltaCheapest$452Average$511FlexibilityNo cancel feeOn-timeN/A

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