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$155+ 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 3/11. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — STL
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
1 adult, Economy
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Cheap flight deals from Canada to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Canada (CA0) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 21, 2025.

Round-trip from

$267
(Kiwi.com)

One-way from

$155
(Kiwi.com)

Good round-trip deal

$469 or less

Good one-way deal

$301 or less
From Canada to Lambert-St Louis
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One-way flight from Canada to Lambert-St Louis
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Price to beat on a round-trip flight from Canada to Lambert-St Louis.
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Price to beat on a one-way flight from Canada to Lambert-St Louis.
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Find 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 January 21, 2025.

This Kiwi.com deal was found by Cheapflights users on 1/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/116:30 amYUL - STL
1 stop11h 12mMultiple Airlines
Tue 3/185:38 pmSTL - YUL
1 stop22h 57mMultiple Airlines
Deal found 1/20$267
This American Airlines deal was found by Cheapflights users on 1/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/27:00 amYVR - STL
1 stop10h 29mAmerican Airlines
Fri 4/45:27 pmSTL - YVR
1 stop19h 18mAmerican Airlines
Deal found 1/21$296
This United Airlines deal was found by Cheapflights users on 1/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/42:09 pmYYC - STL
1 stop5h 35mUnited Airlines
Tue 3/118:20 amSTL - YYC
1 stop7h 01mUnited Airlines
Deal found 1/21$316
This Delta deal was found by Cheapflights users on 1/21. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/412:40 pmYYC - STL
1 stop7h 53mDelta
Tue 3/1110:30 amSTL - YYC
2 stops13h 46mDelta
Deal found 1/21$319
This Delta deal was found by Cheapflights users on 1/21. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/2712:15 pmYVR - STL
1 stop10h 23mDelta
Sat 3/87:40 amSTL - YVR
2 stops12h 59mDelta
Deal found 1/21$320
This Air Canada deal was found by Cheapflights users on 1/21. 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.
Wed 4/96:15 amYVR - STL
1 stop7h 32mAir Canada
Wed 4/163:50 pmSTL - YVR
1 stop18h 27mAir Canada
Deal found 1/21$321
This Justfly.com deal was found by Cheapflights users on 1/21. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/246:00 amYVR - STL
2 stops15h 03mWestJet
Fri 3/286:00 amSTL - YVR
2 stops14h 23mWestJet
Deal found 1/21$329
This Kiwi.com deal was found by Cheapflights users on 1/21. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/312:30 amYYC - STL
1 stop7h 50mWestJet
Tue 3/116:00 amSTL - YYC
2 stops11h 16mWestJet
Deal found 1/21$363
This Kiwi.com deal was found by Cheapflights users on 1/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/217:50 amYVR - STL
1 stop13h 53mMultiple Airlines
Thu 2/2711:08 pmSTL - YVR
1 stop25h 22mMultiple Airlines
Deal found 1/20$380
This Mytrip deal was found by Cheapflights users on 1/21. 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 3/312:20 amYYC - STL
2 stops13h 22mMultiple Airlines
Tue 3/115:38 pmSTL - YYC
3 stops28h 53mMultiple Airlines
Deal found 1/21$394
This Delta deal was found by Cheapflights users on 1/21. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/2011:20 amYUL - STL
1 stop10h 42mDelta
Thu 2/2710:20 amSTL - YUL
1 stop9h 43mDelta
Deal found 1/21$398
This Delta deal was found by Cheapflights users on 1/21. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/286:43 pmYYZ - STL
1 stop18h 44mDelta
Wed 3/56:06 amSTL - YYZ
1 stop16h 33mDelta
Deal found 1/21$410

Find flights from Canada to St. Louis within your budget

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 January 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

MontrealSt. Louis

YUL - STL

YULSTL

Montreal Pierre Elliott Trudeau Intl

Tue 3/11

6:30 am-4:42 pm

1 stop11h 12m

Lambert-St Louis

Tue 3/18

5:38 pm-5:35 pm

1 stop22h 57m

$267

VancouverSt. Louis

YVR - STL

YVRSTL

Vancouver Intl

Tue 2/25

6:30 am-3:40 pm

1 stop7h 10m

Lambert-St Louis

Sat 3/1

3:50 pm-10:35 pm

1 stop8h 45m

$289

VancouverSt. Louis

YVR - STL

YVRSTL

Vancouver Intl

Tue 2/25

6:40 pm-4:33 pm

2 stops19h 53m

Lambert-St Louis

Sat 3/1

9:00 am-6:59 pm

1 stop11h 59m

$292

VancouverSt. Louis

YVR - STL

YVRSTL

Vancouver Intl

Wed 4/2

7:00 am-7:29 pm

1 stop10h 29m

Lambert-St Louis

Fri 4/4

5:27 pm-10:45 am

1 stop19h 18m

$296

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Tue 3/4

2:09 pm-8:44 pm

1 stop5h 35m

Lambert-St Louis

Tue 3/11

8:20 am-2:21 pm

1 stop7h 01m

$316

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Tue 3/4

6:35 am-9:49 pm

2 stops14h 14m

Lambert-St Louis

Tue 3/11

11:19 am-11:16 pm

2 stops12h 57m

$319

VancouverSt. Louis

YVR - STL

YVRSTL

Vancouver Intl

Thu 2/27

12:15 pm-12:38 am

1 stop10h 23m

Lambert-St Louis

Sat 3/8

7:40 am-6:39 pm

2 stops12h 59m

$320

VancouverSt. Louis

YVR - STL

YVRSTL

Vancouver Intl

Mon 3/24

6:00 am-11:03 pm

2 stops15h 03m

Lambert-St Louis

Fri 3/28

6:00 am-6:23 pm

2 stops14h 23m

$329

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Mon 3/3

12:30 am-9:20 am

1 stop7h 50m

Lambert-St Louis

Tue 3/11

6:00 am-4:16 pm

2 stops11h 16m

$363

VancouverSt. Louis

YVR - STL

YVRSTL

Vancouver Intl

Fri 2/21

7:50 am-11:43 pm

1 stop13h 53m

Lambert-St Louis

Thu 2/27

11:08 pm-10:30 pm

1 stop25h 22m

$380

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

Showing 1-10 of 54 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.

Travel insights for flights from Canada to St. Louis

Get recent, data-driven insights about flights from Canada to St. Louis including ideal travel times, pricing trends, and more.

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 $311). Flying from Canada to St. Louis in March is currently the most expensive (average of $356). 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 January 21, 2025.

When flying from Canada to St. Louis, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 January 21, 2025.

The most flights from CA0 to STL are scheduled on a Monday (2 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (1 on average).

Rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

Temperature in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature totals by month.

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

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 January 21, 2025.
To help decide which airline to fly from Canada to St. Louis, see what other customers have to say about Air Canada, United Airlines and American Airlines. 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
9,706 reviews

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.1

Entertainment

7.1

Boarding

8.2

Reviews

1 / 10

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Alaska Airlines
8.0
Very good
9,706 reviews
Alaska Airlines
8.0
Very good
9,706 reviews

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.1

Entertainment

7.1

Boarding

8.2

Reviews

1 / 10

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Delta
8.0
Very good
8,521 reviews
Alaska Airlines
8.0
Very good
9,706 reviews

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.1

Entertainment

7.1

Boarding

8.2

Reviews

1 / 10

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

KLM
7.8
Good
1,341 reviews
Alaska Airlines
8.0
Very good
9,706 reviews

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.1

Entertainment

7.1

Boarding

8.2

Reviews

1 / 10

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

United Airlines
7.4
Good
8,985 reviews
Alaska Airlines
8.0
Very good
9,706 reviews

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.1

Entertainment

7.1

Boarding

8.2

Reviews

1 / 10

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,706 reviews

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.1

Entertainment

7.1

Boarding

8.2

Reviews

1 / 10

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

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.

  • 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 $163 on United Airlines. Other airlines that offer cheap prices include Delta from $166 and Air Canada from $203 one-way.

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

    Most travelers choose Toronto Pearson Intl - Lambert-St Louis, Vancouver Intl - Lambert-St Louis or Montreal Pierre Elliott Trudeau 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 Air Canada (79%), Jazz (79%) or United Airlines (79%) 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 $138. While the most popular route (Toronto Pearson Intl - Lambert-St Louis) can be booked for $324 on average our data indicates $410 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 $311). Flying from Canada to St. Louis in March is currently the most expensive (average of $356). 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 Canada?

Book flights to Canada if you plan to visit one of these locations
Fenton
Fairview Heights
Maryland Heights
Collinsville
Wentzville
Eureka
St. Peters
Festus
Alton
Farmington
Chesterfield

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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 4 airlines flying from Canada to St. Louis

Discover the top 4 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 January 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$183Average$515FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$285Average$518FlexibilityNo cancel feeOn-time67%
DeltaCheapest$350Average$510FlexibilityNo cancel feeOn-timeN/A
WestJetCheapest$358Average$451FlexibilityNo cancel feeOn-time60%
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