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 $178 on Delta. Other airlines that offer cheap prices include American Airlines from $187 and United Airlines from $191 one-way.

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

The most popular flight routes from St. Louis to Canada are Lambert-St Louis - Toronto Pearson Intl, Lambert-St Louis - Vancouver Intl and Lambert-St Louis - Calgary.

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

Looking at all options, your cheapest flight can be booked for $193. While the most popular route (Lambert-St Louis - Toronto Pearson Intl) can be booked for $339 on average our data indicates $1,718 when flying 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 (78%), Jazz (78%) or United Airlines (78%) as they are the most reliable in getting you off to your destination on time.

What are the most popular airlines that fly from St. Louis to Canada?

American Airlines, Air Canada and United Airlines are the most popular airlines when flying from St. Louis to Canada.

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

To save on the cost of your flight from St. Louis to Canada, book at least 53 days before your planned departure. Booking around this time can save you about 400% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $314 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $909.

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

Flights from St. Louis to Canada lean towards being more expensive in March. Prices are generally better when you fly from St. Louis to Canada in May, with the cheapest ticket starting at $224.

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.

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.

$382+ Flights from St. Louis to Canada

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Cheap flight deals from St. Louis to Canada

Most accurate provider	FlightHub 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$334 (Kiwi.com)
One-way from	$165 (Kiwi.com)
Popular in	March
Cheapest in	May
Average price	$314
Good round-trip deal	$702 or less
Good one-way deal	$231 or less

Provider with most accurate pricing for Lambert-St Louis-Toronto (YTO) flight deals.

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Provider most trusted by Cheapflights users for Lambert-St Louis-Toronto (YTO) flights.

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From Lambert-St Louis to Canada

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One-way flight from Lambert-St Louis to Canada

Search Deals

Highest demand for flights based on searches. 3% potential increase in price ($14 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease ($17 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in April 2025

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Price to beat on a round-trip flight from Lambert-St Louis to Canada.

Search Deals

Price to beat on a one-way flight from Lambert-St Louis to Canada.

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Find 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 30, 2025.

Fri 7/42:27 pmSTL - YVR

1 stop11h 32mMultiple Airlines

Sat 7/1210:50 amYVR - STL

2 stops30h 41mMultiple Airlines

Deal found 4/28

$334

Fri 6/2011:28 amSTL - YYZ

1 stop25h 37mMultiple Airlines

Sun 6/226:30 amYYZ - STL

1 stop29h 03mMultiple Airlines

Deal found 4/28

$339

Thu 6/59:50 amSTL - YYC

2 stops11h 17mMultiple Airlines

Thu 6/129:15 amYYC - STL

1 stop6h 49mMultiple Airlines

Deal found 4/28

$393

Tue 5/271:30 pmSTL - YYC

1 stop10h 36mAir Canada

Tue 6/38:30 amYYC - STL

1 stop6h 00mAir Canada

Deal found 4/28

$395

Thu 6/56:00 amSTL - YYC

1 stop18h 29mAmerican Airlines

Thu 6/126:29 amYYC - STL

1 stop16h 25mAmerican Airlines

Deal found 4/28

$399

Tue 5/2710:45 amSTL - YYC

2 stops13h 16mDelta

Tue 6/32:00 pmYYC - STL

1 stop9h 33mDelta

Deal found 4/28

$409

Tue 9/91:30 pmSTL - YVR

1 stop8h 46mAir Canada

Tue 9/1612:40 pmYVR - STL

1 stop6h 06mAir Canada

Deal found 4/27

$413

Tue 6/311:32 amSTL - YVR

2 stops11h 15mDelta

Thu 6/57:32 pmYVR - STL

2 stops13h 15mDelta

Deal found 4/28

$418

Thu 5/159:50 amSTL - YWG

2 stops30h 05mMultiple Airlines

Mon 5/199:00 amYWG - STL

2 stops9h 41mMultiple Airlines

Deal found 4/29

$420

Tue 5/275:45 pmSTL - YOW

1 stop22h 21mMultiple Airlines

Tue 6/37:00 amYOW - STL

2 stops17h 37mMultiple Airlines

Deal found 4/29

$429

Tue 5/69:40 amSTL - YVR

1 stop10h 29mUnited Airlines

Tue 5/137:00 amYVR - STL

1 stop8h 07mUnited Airlines

Deal found 4/27

$431

Tue 5/276:00 amSTL - YYZ

1 stop13h 44mDelta

Wed 7/96:15 amYYZ - STL

1 stop15h 42mDelta

Deal found 4/27

$431

Best flights from St. Louis to Canada
Discover carefully curated flight deals from St. Louis to Canada that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 30, 2025.

Fri 7/42:27 pmSTL - YVR

1 stop11h 32mMultiple Airlines

Sat 7/1210:50 amYVR - STL

2 stops30h 41mMultiple Airlines

Deal found 4/28

$334

Tue 5/271:30 pmSTL - YYC

1 stop10h 36mAir Canada

Tue 6/38:30 amYYC - STL

1 stop6h 00mAir Canada

Deal found 4/28

$395

Thu 6/56:00 amSTL - YYC

1 stop18h 29mAmerican Airlines

Thu 6/126:29 amYYC - STL

1 stop16h 25mAmerican Airlines

Deal found 4/28

$399

Tue 5/2710:45 amSTL - YYC

2 stops13h 16mDelta

Tue 6/32:00 pmYYC - STL

1 stop9h 33mDelta

Deal found 4/28

$409

Tue 5/135:20 amSTL - YVR

1 stop14h 58mUnited Airlines

Tue 5/207:00 amYVR - STL

1 stop8h 07mUnited Airlines

Deal found 4/27

$427

Wed 6/46:00 amSTL - YYC

1 stop11h 48mWestJet

Sat 6/712:30 amYYC - STL

1 stop11h 05mWestJet

Deal found 4/27

$446

Tue 5/276:22 pmSTL - YVR

2 stops20h 05mAlaska Airlines

Tue 6/31:17 pmYVR - STL

2 stops8h 47mAlaska Airlines

Deal found 4/27

$489

Fri 6/2011:28 amSTL - YYZ

1 stop25h 37mMultiple Airlines

Sun 6/226:30 amYYZ - STL

1 stop29h 03mMultiple Airlines

Deal found 4/28

$339

Tue 6/32:29 pmSTL - YVR

2 stops10h 24mDelta

Tue 6/105:45 pmYVR - STL

2 stops13h 52mDelta

Deal found 4/27

$418

Thu 6/59:50 amSTL - YYC

2 stops11h 17mMultiple Airlines

Thu 6/129:15 amYYC - STL

1 stop6h 49mMultiple Airlines

Deal found 4/28

$393

Thu 5/85:19 amSTL - YVR

1 stop17h 56mAmerican Airlines

Thu 5/811:45 pmYVR - STL

1 stop8h 09mAmerican Airlines

Deal found 4/28

$433

Sun 6/81:30 pmSTL - YQB

1 stop5h 06mAir Canada

Thu 6/123:18 pmYQB - STL

1 stop8h 27mAir Canada

Deal found 4/28

$438

Last-minute flights from St. Louis to Canada
Discover last-minute flight deals from St. Louis to Canada. Data last updated April 30, 2025 and is based on user searches.

Sun 5/45:45 pmSTL - YOW

1 stop22h 21mMultiple Airlines

Tue 5/64:25 pmYOW - STL

1 stop8h 41mMultiple Airlines

Deal found 4/29

$713

Mon 5/56:00 pmSTL - YUL

1 stop14h 50mAmerican Airlines

Wed 5/710:44 amYUL - STL

1 stop9h 31mAmerican Airlines

Deal found 4/28

$736

Mon 5/57:31 amSTL - YYZ

1 stop10h 04mAmerican Airlines

Fri 5/97:25 amYYZ - STL

1 stop8h 30mAmerican Airlines

Deal found 4/28

$745

Tue 5/69:40 amSTL - YVR

1 stop10h 29mUnited Airlines

Tue 5/137:00 amYVR - STL

1 stop8h 07mUnited Airlines

Deal found 4/27

$431

Tue 5/67:40 amSTL - YVR

2 stops15h 28mDelta

Tue 5/136:20 amYVR - STL

2 stops10h 04mDelta

Deal found 4/27

$456

Tue 5/65:45 pmSTL - YYZ

1 stop29h 02mMultiple Airlines

Thu 5/89:50 amYYZ - STL

1 stop15h 16mMultiple Airlines

Deal found 4/29

$496

Tue 5/62:30 pmSTL - YHZ

2 stops8h 00mAir Canada

Fri 5/91:30 pmYHZ - STL

1 stop8h 13mAir Canada

Deal found 4/29

$564

Tue 5/65:37 pmSTL - YHZ

2 stops25h 08mWestJet

Fri 5/96:00 pmYHZ - STL

2 stops28h 39mWestJet

Deal found 4/29

$565

Tue 5/65:32 pmSTL - YYZ

2 stops24h 24mWestJet

Thu 5/86:15 amYYZ - STL

1 stop6h 33mWestJet

Deal found 4/29

$632

Thu 5/85:19 amSTL - YVR

1 stop17h 56mAmerican Airlines

Thu 5/811:45 pmYVR - STL

1 stop8h 09mAmerican Airlines

Deal found 4/28

$433

Thu 5/86:00 amSTL - YVR

2 stops15h 10mWestJet

Thu 5/810:35 pmYVR - STL

2 stops20h 04mWestJet

Deal found 4/28

$595

Fri 5/95:55 pmSTL - YUL

1 stop19h 25mMultiple Airlines

Sun 5/116:45 amYUL - STL

2 stops18h 21mMultiple Airlines

Deal found 4/28

$549

One-way flights from St. Louis to Canada
Search for one-way flight options from St. Louis to Canada. Find affordable one-way fares based on user searches. Data last updated April 30, 2025.

Sat 5/2410:10 amSTL - YYZ

1 stop11h 15mMultiple Airlines

Deal found 4/29

$165

Wed 6/256:30 amSTL - YVR

2 stops10h 18mDelta

Deal found 4/28

$178

Wed 6/185:47 pmSTL - YVR

2 stops29h 14mMultiple Airlines

Deal found 4/27

$182

Wed 7/2310:08 amSTL - YVR

1 stop14h 52mAmerican Airlines

Deal found 4/28

$187

Thu 5/156:00 amSTL - YYC

1 stop7h 53mUnited Airlines

Deal found 4/28

$191

Tue 7/12:23 pmSTL - YYC

1 stop9h 37mDelta

Deal found 4/28

$192

Mon 6/307:20 amSTL - YYC

1 stop17h 09mAmerican Airlines

Deal found 4/29

$195

Mon 6/165:47 pmSTL - YQB

2 stops17h 38mAmerican Airlines

Deal found 4/28

$197

Thu 5/159:50 amSTL - YYC

2 stops11h 17mMultiple Airlines

Deal found 4/28

$200

Mon 5/121:30 pmSTL - YQB

1 stop5h 06mAir Canada

Deal found 4/28

$204

Fri 7/44:45 pmSTL - YVR

1 stop6h 21mAir Canada

Deal found 4/29

$208

Fri 5/23:08 pmSTL - YVR

2 stops23h 19mAlaska Airlines

Deal found 4/28

$212

Cheapflights Fare Finder

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

Fri 7/4

2:27 pm-11:59 pm

1 stop11h 32m

Vancouver Intl

Sat 7/12

10:50 am-7:31 pm

2 stops30h 41m

$334

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Fri 6/20

11:28 am-2:05 pm

1 stop25h 37m

Toronto Pearson Intl

Sun 6/22

6:30 am-10:33 am

1 stop29h 03m

$339

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Thu 6/5

9:50 am-8:07 pm

2 stops11h 17m

Calgary

Thu 6/12

9:15 am-5:04 pm

1 stop6h 49m

$393

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Tue 5/27

1:30 pm-11:06 pm

1 stop10h 36m

Calgary

Tue 6/3

8:30 am-3:30 pm

1 stop6h 00m

$395

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Thu 6/5

6:00 am-11:29 pm

1 stop18h 29m

Calgary

Thu 6/12

6:29 am-11:54 pm

1 stop16h 25m

$399

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Tue 5/27

10:45 am-11:01 pm

2 stops13h 16m

Calgary

Tue 6/3

2:00 pm-12:33 am

1 stop9h 33m

$409

St. LouisVancouver

STL - YVR

STLYVR

Lambert-St Louis

Tue 6/3

11:32 am-8:47 pm

2 stops11h 15m

Vancouver Intl

Thu 6/5

7:32 pm-10:47 am

2 stops13h 15m

$418

St. LouisWinnipeg

STL - YWG

STLYWG

Lambert-St Louis

Thu 5/15

9:50 am-3:55 pm

2 stops30h 05m

Winnipeg

Mon 5/19

9:00 am-6:41 pm

2 stops9h 41m

$420

St. LouisVancouver

STL - YVR

STLYVR

Lambert-St Louis

Tue 5/13

5:20 am-6:18 pm

1 stop14h 58m

Vancouver Intl

Tue 5/20

7:00 am-5:07 pm

1 stop8h 07m

$427

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Tue 5/27

5:45 pm-5:06 pm

1 stop22h 21m

Ottawa

Tue 6/3

7:00 am-11:37 pm

2 stops17h 37m

$429

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 57 results

...

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

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

Currently, January is the cheapest month in which you can book a flight from St. Louis to Canada (average of $243). Flying from St. Louis to Canada in July is currently the most expensive (average of $359). 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?

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

Rainfall in Canada by month

In terms of precipitation, rainfall in Canada ranges from 2.0 - 3.3 inches per month. June is typically the wettest month, when rainfall can reach 3.3 in. February is typically the driest time to visit Canada when rainfall is around 2.0 in.

Temperature in Canada by month

If weather is an important factor for your trip to Canada, 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 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 21.2 F).

Reviews of airlines servicing Canada

Peruse reviews from past customers who have flown with Alaska Airlines, Delta and United Airlines from St. Louis to Canada to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

9,961 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Alaska Airlines

8.0

Very good

9,961 reviews

Alaska Airlines

8.0

Very good

9,961 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Delta

8.0

Very good

7,936 reviews

Alaska Airlines

8.0

Very good

9,961 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

United Airlines

7.4

Good

8,696 reviews

Alaska Airlines

8.0

Very good

9,961 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

American Airlines

7.2

Good

10,000 reviews

Alaska Airlines

8.0

Very good

9,961 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

WestJet

7.2

Good

2,823 reviews

Alaska Airlines

8.0

Very good

9,961 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

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.
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 $178 on Delta. Other airlines that offer cheap prices include American Airlines from $187 and United Airlines from $191 one-way.
What are the most popular routes from St. Louis to Canada?
The most popular flight routes from St. Louis to Canada are Lambert-St Louis - Toronto Pearson Intl, Lambert-St Louis - Vancouver Intl and Lambert-St Louis - Calgary.
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 (78%), Jazz (78%) or United Airlines (78%) 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 $193. While the most popular route (Lambert-St Louis - Toronto Pearson Intl) can be booked for $339 on average our data indicates $1,718 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, January is the cheapest month in which you can book a flight from St. Louis to Canada (average of $243). Flying from St. Louis to Canada in July is currently the most expensive (average of $359). 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

Browse thousands of different options on Cheapflights for your next trip

Top 6 airlines flying from St. Louis to Canada

Airline	Cheapest	Average	Flexibility	On-time
Air Canada	Cheapest$165	Average$610	FlexibilityNo cancel fee	On-time67%
Delta	Cheapest$190	Average$613	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$191	Average$601	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$214	Average$632	FlexibilityNo cancel fee	On-time69%
Alaska Airlines	Cheapest$360	Average$561	FlexibilityNo cancel fee	On-time75%
WestJet	Cheapest$405	Average$600	FlexibilityNo cancel fee	On-time60%

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$164+ 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 5/13. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from St. Louis to Canada with Cheapflights

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Cheap 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 30, 2025.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from St. Louis to Canada

Cheapest flights from St. Louis to CanadaExplore 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 30, 2025.

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 30, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from St. Louis to Canada that are best for you.

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.

Cheapflights Insights

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

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

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 30, 2025.

Rainfall in Canada by month

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

Temperature in Canada by month

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

Reviews of airlines servicing Canada

Peruse reviews from past customers who have flown with Alaska Airlines, Delta and United Airlines from St. Louis to Canada to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

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?

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

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

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

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

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

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

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

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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

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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 30, 2025.