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 $169 on Air Canada. Other airlines that offer cheap prices include United Airlines from $172 and Delta from $179 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 $214. While the most popular route (Lambert-St Louis - Toronto Pearson Intl) can be booked for $321 on average our data indicates $2,375 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 (71%), Jazz (71%) or United Airlines (71%) 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 $228.

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	FlightHub 3 stars
Round-trip from	$292 (Kiwi.com)
One-way from	$128 (Kiwi.com)
Popular in	March
Cheapest in	May
Average price	$583
Good round-trip deal	$859 or less
Good one-way deal	$329 or less

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

Search Deals

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

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From Lambert-St Louis to Canada

Search Deals

One-way flight from Lambert-St Louis to Canada

Search Deals

Highest demand for flights based on searches. 5% potential increase in price ($24 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease ($18 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in March 2025

Search Deals

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 março 31, 2025.

qui 5/1510:10 amSTL - YYZ

1 stop9h 50mMultiple Airlines

qui 5/224:00 pmYYZ - STL

1 stop8h 52mMultiple Airlines

Deal found 3/31

$292

sáb 6/77:24 pmSTL - YYC

1 stop20h 21mMultiple Airlines

sex 6/134:20 pmYYC - STL

1 stop15h 52mMultiple Airlines

Deal found 3/30

$325

qua 5/141:30 pmSTL - YQB

1 stop5h 06mAir Canada

qua 5/215:50 amYQB - STL

2 stops7h 46mAir Canada

Deal found 3/30

$358

qui 5/159:50 amSTL - YEG

2 stops10h 54mMultiple Airlines

qui 5/229:25 amYEG - STL

1 stop25h 00mMultiple Airlines

Deal found 3/31

$376

ter 5/69:50 amSTL - YVR

3 stops16h 49mMultiple Airlines

ter 5/206:00 amYVR - STL

3 stops27h 45mMultiple Airlines

Deal found 3/30

$390

ter 5/69:50 amSTL - YOW

3 stops13h 32mMultiple Airlines

qua 5/74:25 pmYOW - STL

2 stops17h 50mMultiple Airlines

Deal found 3/30

$392

sex 4/184:45 pmSTL - YYC

1 stop6h 03mAir Canada

sex 4/256:15 amYYC - STL

1 stop7h 34mAir Canada

Deal found 3/31

$394

seg 4/285:26 amSTL - YYC

1 stop7h 19mAmerican Airlines

sex 5/26:45 amYYC - STL

1 stop14h 43mAmerican Airlines

Deal found 3/31

$398

ter 5/137:30 amSTL - YVR

2 stops10h 57mDelta

ter 5/207:32 pmYVR - STL

2 stops13h 15mDelta

Deal found 3/30

$428

ter 5/139:50 amSTL - YWG

3 stops14h 23mMultiple Airlines

sáb 5/318:30 amYWG - STL

3 stops27h 40mMultiple Airlines

Deal found 3/30

$429

dom 8/171:30 pmSTL - YVR

1 stop8h 50mAir Canada

qua 8/278:55 amYVR - STL

1 stop9h 05mAir Canada

Deal found 3/30

$439

seg 4/286:00 amSTL - YYC

2 stops14h 01mWestJet

dom 5/412:30 amYYC - STL

1 stop16h 26mWestJet

Deal found 3/30

$441

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 março 31, 2025.

qui 5/1510:10 amSTL - YYZ

1 stop9h 50mMultiple Airlines

qui 5/224:00 pmYYZ - STL

1 stop8h 52mMultiple Airlines

Deal found 3/31

$292

qua 5/141:30 pmSTL - YQB

1 stop5h 06mAir Canada

qua 5/215:50 amYQB - STL

2 stops7h 46mAir Canada

Deal found 3/30

$358

seg 4/285:26 amSTL - YYC

1 stop7h 19mAmerican Airlines

sex 5/26:45 amYYC - STL

1 stop14h 43mAmerican Airlines

Deal found 3/31

$398

ter 5/137:30 amSTL - YVR

2 stops10h 57mDelta

ter 5/207:32 pmYVR - STL

2 stops13h 15mDelta

Deal found 3/30

$428

seg 4/286:00 amSTL - YYC

2 stops13h 40mWestJet

qui 5/112:30 amYYC - STL

1 stop10h 15mWestJet

Deal found 3/31

$441

qua 7/25:41 pmSTL - YVR

1 stop7h 41mUnited Airlines

seg 7/711:35 pmYVR - STL

1 stop14h 12mUnited Airlines

Deal found 3/30

$453

seg 8/257:36 pmSTL - YYC

1 stop29h 16mAlaska Airlines

qua 9/37:33 pmYYC - STL

1 stop27h 26mAlaska Airlines

Deal found 3/30

$490

sáb 6/77:24 pmSTL - YYC

1 stop20h 21mMultiple Airlines

sex 6/134:20 pmYYC - STL

1 stop15h 52mMultiple Airlines

Deal found 3/30

$325

sex 4/184:45 pmSTL - YYC

1 stop6h 03mAir Canada

sex 4/256:15 amYYC - STL

1 stop7h 34mAir Canada

Deal found 3/31

$394

qui 5/159:50 amSTL - YEG

2 stops10h 54mMultiple Airlines

qui 5/229:25 amYEG - STL

1 stop25h 00mMultiple Airlines

Deal found 3/31

$376

qua 5/146:00 amSTL - YQB

1 stop6h 30mAmerican Airlines

qua 5/212:15 pmYQB - STL

1 stop8h 37mAmerican Airlines

Deal found 3/30

$441

seg 4/2811:15 amSTL - YYC

2 stops12h 50mDelta

sex 5/212:25 pmYYC - STL

2 stops10h 09mDelta

Deal found 3/31

$446

Last-minute flights from St. Louis to Canada
Discover last-minute flight deals from St. Louis to Canada. Data last updated março 31, 2025 and is based on user searches.

sex 4/46:38 pmSTL - YVR

1 stop31h 30mMultiple Airlines

sex 4/113:55 pmYVR - STL

1 stop23h 48mMultiple Airlines

Deal found 3/30

$410

sex 4/42:20 pmSTL - YVR

2 stops10h 37mDelta

sex 4/119:17 amYVR - STL

2 stops13h 11mDelta

Deal found 3/30

$496

dom 4/66:35 amSTL - YYC

2 stops41h 20mMultiple Airlines

dom 4/1311:30 amYYC - STL

2 stops31h 40mMultiple Airlines

Deal found 3/30

$457

dom 4/65:27 pmSTL - YYC

1 stop19h 18mAmerican Airlines

dom 4/136:45 amYYC - STL

1 stop8h 51mAmerican Airlines

Deal found 3/30

$484

dom 4/66:00 amSTL - YYC

1 stop15h 42mWestJet

sáb 4/1212:30 amYYC - STL

1 stop8h 06mWestJet

Deal found 3/30

$573

seg 4/76:10 amSTL - YYZ

1 stop9h 01mWestJet

seg 4/78:00 pmYYZ - STL

2 stops25h 15mWestJet

Deal found 3/30

$631

seg 4/78:00 amSTL - YYZ

2 stops9h 17mUnited Airlines

seg 4/78:55 pmYYZ - STL

2 stops19h 52mUnited Airlines

Deal found 3/30

$879

ter 4/84:57 pmSTL - YYZ

1 stop17h 48mMultiple Airlines

qui 4/246:30 amYYZ - STL

1 stop11h 45mMultiple Airlines

Deal found 3/31

$329

ter 4/83:30 pmSTL - YHZ

1 stop7h 14mAir Canada

qua 4/96:20 amYHZ - STL

2 stops10h 22mAir Canada

Deal found 3/30

$524

ter 4/83:30 pmSTL - YYZ

Nonstop2h 00mAir Canada

qui 4/241:40 pmYYZ - STL

Nonstop2h 09mAir Canada

Deal found 3/31

$983

qua 4/98:48 amSTL - YEG

2 stops9h 35mAir Canada

qui 4/1010:40 amYEG - STL

2 stops10h 10mAir Canada

Deal found 3/30

$873

qua 4/96:00 amSTL - YEG

2 stops11h 49mWestJet

qui 4/109:45 amYEG - STL

1 stop12h 19mWestJet

Deal found 3/30

$895

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 março 31, 2025.

ter 4/84:57 pmSTL - YYZ

1 stop17h 48mMultiple Airlines

Deal found 3/30

$128

dom 5/1110:10 amSTL - YHZ

2 stops14h 45mMultiple Airlines

Deal found 3/30

$131

qua 7/97:24 pmSTL - YYC

1 stop27h 47mMultiple Airlines

Deal found 3/30

$140

ter 6/241:30 pmSTL - YYC

1 stop10h 33mAir Canada

Deal found 3/29

$169

dom 5/117:30 amSTL - YHZ

1 stop7h 54mUnited Airlines

Deal found 3/30

$172

ter 4/2211:15 amSTL - YYC

2 stops12h 50mDelta

Deal found 3/29

$179

dom 6/158:35 amSTL - YYC

1 stop15h 54mAmerican Airlines

Deal found 3/31

$184

qua 6/257:15 pmSTL - YVR

2 stops15h 08mDelta

Deal found 3/30

$188

seg 5/121:30 pmSTL - YQB

1 stop5h 06mAir Canada

Deal found 3/30

$188

ter 9/2312:00 pmSTL - YYZ

1 stop9h 44mDelta

Deal found 3/30

$191

seg 6/164:37 pmSTL - YQB

2 stops18h 48mAmerican Airlines

Deal found 3/31

$197

qua 6/257:24 pmSTL - YVR

2 stops23h 11mMultiple Airlines

Deal found 3/30

$198

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. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

qui 5/15

10:10 am-9:00 pm

1 stop9h 50m

Toronto Pearson Intl

qui 5/22

4:00 pm-11:52 pm

1 stop8h 52m

$292

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

sáb 6/7

7:24 pm-2:45 pm

1 stop20h 21m

Calgary

sex 6/13

4:20 pm-9:12 am

1 stop15h 52m

$325

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

qua 5/14

1:30 pm-7:36 pm

1 stop5h 06m

Québec City

qua 5/21

5:50 am-12:36 pm

2 stops7h 46m

$358

St. LouisEdmonton

STL - YEG

STLYEG

Lambert-St Louis

qui 5/15

9:50 am-7:44 pm

2 stops10h 54m

Edmonton

qui 5/22

9:25 am-11:25 am

1 stop25h 00m

$376

St. LouisVancouver

STL - YVR

STLYVR

Lambert-St Louis

ter 5/6

9:50 am-12:39 am

3 stops16h 49m

Vancouver Intl

ter 5/20

6:00 am-11:45 am

3 stops27h 45m

$390

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

ter 5/6

9:50 am-12:22 am

3 stops13h 32m

Ottawa

qua 5/7

4:25 pm-9:15 am

2 stops17h 50m

$392

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

sex 4/18

4:45 pm-9:48 pm

1 stop6h 03m

Calgary

sex 4/25

6:15 am-2:49 pm

1 stop7h 34m

$394

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

seg 4/28

5:26 am-11:45 am

1 stop7h 19m

Calgary

sex 5/2

6:45 am-10:28 pm

1 stop14h 43m

$398

St. LouisVancouver

STL - YVR

STLYVR

Lambert-St Louis

ter 5/13

7:30 am-4:27 pm

2 stops10h 57m

Vancouver Intl

ter 5/20

7:32 pm-10:47 am

2 stops13h 15m

$428

St. LouisWinnipeg

STL - YWG

STLYWG

Lambert-St Louis

ter 5/13

9:50 am-12:13 am

3 stops14h 23m

Winnipeg

sáb 5/31

8:30 am-12:10 pm

3 stops27h 40m

$429

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/30

Showing 1-10 of 59 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

9,818 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

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

9,818 reviews

Alaska Airlines

8.0

Very good

9,818 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

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

7,899 reviews

Alaska Airlines

8.0

Very good

9,818 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

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

8,614 reviews

Alaska Airlines

8.0

Very good

9,818 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

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

9,818 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

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

WestJet

7.2

Good

2,789 reviews

Alaska Airlines

8.0

Very good

9,818 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

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

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 $169 on Air Canada. Other airlines that offer cheap prices include United Airlines from $172 and Delta from $179 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 (71%), Jazz (71%) or United Airlines (71%) 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 $214. While the most popular route (Lambert-St Louis - Toronto Pearson Intl) can be booked for $321 on average our data indicates $2,375 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$633	FlexibilityNo cancel fee	On-time67%
American Airlines	Cheapest$191	Average$605	FlexibilityNo cancel fee	On-time71%
Delta	Cheapest$196	Average$604	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$237	Average$627	FlexibilityNo cancel fee	On-time69%
Alaska Airlines	Cheapest$360	Average$561	FlexibilityNo cancel fee	On-time75%
WestJet	Cheapest$412	Average$589	FlexibilityNo cancel fee	On-time60%

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$128+ 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 4/8. 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 março 31, 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 março 31, 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 março 31, 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 março 31, 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 março 31, 2025.