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

There are many flights that can get you from St. Louis to Canada in 6h 21m. Fly via American 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 $135 on American Airlines. Other airlines that offer cheap prices include United Airlines from $176 and Air Canada from $182 one-way.

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.

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).

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 - Montreal Pierre Elliott Trudeau Intl and Lambert-St Louis - Vancouver Intl.

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

Looking at all options, your cheapest flight can be booked for $141. While the most popular route (Lambert-St Louis - Toronto Pearson Intl) can be booked for $241 on average, our data indicates $1,431 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 (93%), Jazz (93%) or United Airlines (93%) 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?

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

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.

$88+ Flights from St. Louis to Canada

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Cheap flight deals from St. Louis to Canada

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$241 (Kiwi.com)
One-way from	$88 (Kiwi.com)
Popular in	March
Cheapest in	January
Average price	$544
Good round-trip deal	$620 or less
Good one-way deal	$179 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

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One-way flight from Lambert-St Louis to Canada

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High demand for flights, 9% potential price rise

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in October 2025

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

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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 October 28, 2025.

Mon 12/155:15 amSTL - YYZ

1 stop11h 29mAmerican Airlines

Thu 1/81:14 pmYYZ - STL

1 stop9h 01mAmerican Airlines

Deal found 10/27

$276

Mon 12/1510:47 amSTL - YYZ

2 stops36h 24mMultiple Airlines

Thu 1/87:10 amYYZ - STL

1 stop16h 23mMultiple Airlines

Deal found 10/27

$295

Wed 12/107:43 pmSTL - YVR

2 stops18h 57mMultiple Airlines

Wed 12/173:40 pmYVR - STL

1 stop22h 44mMultiple Airlines

Deal found 10/26

$306

Tue 11/253:14 pmSTL - YWG

1 stop23h 53mMultiple Airlines

Sun 11/304:55 pmYWG - STL

1 stop22h 13mMultiple Airlines

Deal found 10/26

$313

Wed 12/105:05 amSTL - YYZ

1 stop9h 58mAmerican Airlines

Wed 12/176:00 amYYZ - STL

1 stop10h 29mAmerican Airlines

Deal found 10/27

$316

Tue 11/187:45 pmSTL - YYC

2 stops16h 59mMultiple Airlines

Sat 11/2212:30 amYYC - STL

1 stop12h 59mMultiple Airlines

Deal found 10/28

$320

Thu 12/1112:04 pmSTL - YWG

1 stop27h 03mMultiple Airlines

Thu 12/184:10 pmYWG - STL

2 stops27h 37mMultiple Airlines

Deal found 10/26

$334

Thu 12/112:47 pmSTL - YYZ

1 stop22h 53mMultiple Airlines

Sun 12/148:20 pmYYZ - STL

2 stops14h 32mMultiple Airlines

Deal found 10/27

$337

Mon 11/109:50 amSTL - YYZ

2 stops10h 17mMultiple Airlines

Sat 11/227:00 amYYZ - STL

1 stop28h 03mMultiple Airlines

Deal found 10/26

$339

Thu 11/2710:53 amSTL - YYZ

1 stop23h 50mMultiple Airlines

Sun 12/78:30 pmYYZ - STL

2 stops14h 22mMultiple Airlines

Deal found 10/26

$341

Wed 12/102:38 pmSTL - YVR

2 stops11h 21mDelta

Wed 12/177:25 amYVR - STL

2 stops9h 45mDelta

Deal found 10/26

$344

Tue 12/23:30 pmSTL - YVR

2 stops45h 42mMultiple Airlines

Thu 12/119:10 amYVR - STL

1 stop24h 12mMultiple Airlines

Deal found 10/28

$346

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 October 28, 2025.

Wed 2/115:44 pmSTL - YVR

1 stop30h 36mMultiple Airlines

Tue 2/179:30 amYVR - STL

1 stop29h 19mMultiple Airlines

Deal found 10/26

$248

Mon 12/155:15 amSTL - YYZ

1 stop11h 29mAmerican Airlines

Thu 1/81:14 pmYYZ - STL

1 stop9h 01mAmerican Airlines

Deal found 10/27

$276

Mon 1/124:05 pmSTL - YHZ

1 stop6h 21mAir Canada

Sat 1/179:00 amYHZ - STL

1 stop8h 29mAir Canada

Deal found 10/28

$331

Wed 12/102:38 pmSTL - YVR

2 stops11h 21mDelta

Wed 12/177:25 amYVR - STL

2 stops9h 45mDelta

Deal found 10/26

$344

Tue 3/32:55 pmSTL - YVR

1 stop8h 00mAlaska Airlines

Wed 3/46:00 amYVR - STL

1 stop5h 52mAlaska Airlines

Deal found 10/27

$362

Tue 2/1711:25 amSTL - YUL

1 stop8h 52mUnited Airlines

Thu 2/191:10 pmYUL - STL

1 stop10h 49mUnited Airlines

Deal found 10/25

$390

Sat 2/1412:58 pmSTL - YYZ

1 stop7h 17mAmerican Airlines

Sat 2/216:15 amYYZ - STL

1 stop12h 41mAmerican Airlines

Deal found 10/25

$279

Wed 1/145:06 pmSTL - YYZ

1 stop20h 14mMultiple Airlines

Sat 1/172:20 pmYYZ - STL

2 stops20h 26mMultiple Airlines

Deal found 10/27

$296

Tue 4/74:05 pmSTL - YHZ

1 stop5h 59mAir Canada

Wed 4/89:00 amYHZ - STL

1 stop8h 24mAir Canada

Deal found 10/25

$331

Wed 1/75:11 pmSTL - YYZ

1 stop20h 05mMultiple Airlines

Sat 1/107:10 amYYZ - STL

1 stop16h 23mMultiple Airlines

Deal found 10/26

$304

Sat 12/136:00 amSTL - YVR

2 stops14h 44mDelta

Tue 12/1611:40 amYVR - STL

2 stops11h 21mDelta

Deal found 10/26

$344

Wed 12/105:05 amSTL - YYZ

1 stop9h 58mAmerican Airlines

Wed 12/176:00 amYYZ - STL

1 stop11h 50mAmerican Airlines

Deal found 10/26

$316

Wed 12/107:43 pmSTL - YVR

2 stops18h 57mMultiple Airlines

Wed 12/173:40 pmYVR - STL

1 stop22h 44mMultiple Airlines

Deal found 10/26

$306

Wed 2/113:31 pmSTL - YVR

2 stops10h 32mDelta

Tue 2/176:15 amYVR - STL

2 stops12h 24mDelta

Deal found 10/26

$344

Wed 12/174:05 pmSTL - YOW

1 stop6h 03mAir Canada

Fri 12/199:15 amYOW - STL

1 stop7h 14mAir Canada

Deal found 10/26

$361

Thu 12/119:00 amSTL - YEG

1 stop6h 14mUnited Airlines

Thu 12/186:00 amYEG - STL

1 stop6h 20mUnited Airlines

Deal found 10/27

$412

Sun 2/15:11 pmSTL - YYZ

1 stop20h 09mMultiple Airlines

Tue 2/101:30 pmYYZ - STL

2 stops28h 19mMultiple Airlines

Deal found 10/27

$325

Thu 2/196:00 amSTL - YYZ

1 stop9h 00mAmerican Airlines

Mon 2/236:29 pmYYZ - STL

1 stop15h 59mAmerican Airlines

Deal found 10/27

$358

Tue 4/74:05 pmSTL - YOW

1 stop5h 59mAir Canada

Wed 4/810:15 amYOW - STL

1 stop6h 09mAir Canada

Deal found 10/27

$361

Thu 1/227:00 amSTL - YVR

2 stops9h 36mDelta

Mon 1/267:37 pmYVR - STL

2 stops12h 02mDelta

Deal found 10/27

$363

Mon 1/127:00 amSTL - YHZ

1 stop5h 31mMultiple Airlines

Sat 1/179:00 amYHZ - STL

1 stop8h 29mMultiple Airlines

Deal found 10/27

$329

Wed 2/189:55 amSTL - YOW

1 stop10h 23mUnited Airlines

Sun 2/226:00 amYOW - STL

2 stops7h 25mUnited Airlines

Deal found 10/27

$449

Mon 11/247:47 pmSTL - YVR

2 stops17h 02mDelta

Wed 11/267:36 pmYVR - STL

2 stops17h 29mDelta

Deal found 10/28

$376

Fri 1/166:44 pmSTL - YUL

1 stop19h 24mAmerican Airlines

Mon 1/193:52 pmYUL - STL

1 stop19h 29mAmerican Airlines

Deal found 10/26

$376

Tue 3/37:00 amSTL - YYC

1 stop12h 17mAlaska Airlines

Wed 3/46:55 pmYYC - STL

1 stop28h 01mAlaska Airlines

Deal found 10/25

$531

Thu 2/1912:20 pmSTL - YYZ

1 stop10h 00mMultiple Airlines

Mon 2/238:20 pmYYZ - STL

2 stops38h 42mMultiple Airlines

Deal found 10/27

$331

Tue 3/104:05 pmSTL - YEG

1 stop8h 13mAir Canada

Wed 3/116:00 amYEG - STL

1 stop8h 29mAir Canada

Deal found 10/25

$410

Thu 12/116:00 amSTL - YVR

2 stops14h 44mDelta

Thu 12/187:25 amYVR - STL

2 stops14h 04mDelta

Deal found 10/27

$384

Mon 2/99:57 amSTL - YQB

2 stops11h 50mUnited Airlines

Thu 2/125:00 amYQB - STL

2 stops17h 00mUnited Airlines

Deal found 10/28

$466

Thu 12/1112:04 pmSTL - YWG

1 stop27h 03mMultiple Airlines

Thu 12/184:10 pmYWG - STL

2 stops27h 37mMultiple Airlines

Deal found 10/26

$334

Last-minute flights from St. Louis to Canada
Discover last-minute flight deals from St. Louis to Canada. Data last updated October 28, 2025 and is based on user searches.

Fri 10/314:52 pmSTL - YVR

1 stop20h 20mMultiple Airlines

Sun 11/211:00 pmYVR - STL

2 stops12h 17mMultiple Airlines

Deal found 10/27

$387

Mon 11/109:50 amSTL - YYZ

2 stops10h 17mMultiple Airlines

Sat 11/227:00 amYYZ - STL

1 stop28h 03mMultiple Airlines

Deal found 10/26

$339

Thu 11/137:02 pmSTL - YYZ

1 stop18h 38mMultiple Airlines

Sun 11/167:10 amYYZ - STL

1 stop27h 30mMultiple Airlines

Deal found 10/27

$383

Sun 11/162:12 pmSTL - YUL

1 stop9h 18mMultiple Airlines

Sat 11/226:45 amYUL - STL

2 stops28h 18mMultiple Airlines

Deal found 10/26

$398

Mon 11/177:45 pmSTL - YYC

2 stops16h 59mMultiple Airlines

Sat 11/221:25 pmYYC - STL

1 stop9h 29mMultiple Airlines

Deal found 10/27

$352

Mon 11/179:50 amSTL - YYZ

2 stops10h 17mMultiple Airlines

Thu 11/205:15 pmYYZ - STL

1 stop7h 42mMultiple Airlines

Deal found 10/28

$370

Mon 11/174:05 pmSTL - YHZ

2 stops16h 59mAir Canada

Mon 11/245:35 amYHZ - STL

2 stops11h 54mAir Canada

Deal found 10/27

$393

Tue 11/187:45 pmSTL - YYC

2 stops16h 59mMultiple Airlines

Sat 11/2212:30 amYYC - STL

1 stop12h 59mMultiple Airlines

Deal found 10/28

$320

Thu 11/2010:53 amSTL - YYZ

1 stop23h 50mMultiple Airlines

Wed 12/35:15 pmYYZ - STL

1 stop30h 18mMultiple Airlines

Deal found 10/26

$352

Mon 11/247:47 pmSTL - YVR

2 stops17h 02mDelta

Wed 11/267:36 pmYVR - STL

2 stops17h 29mDelta

Deal found 10/28

$376

Tue 11/253:14 pmSTL - YWG

1 stop23h 53mMultiple Airlines

Sun 11/304:55 pmYWG - STL

1 stop22h 13mMultiple Airlines

Deal found 10/26

$313

Thu 11/2710:53 amSTL - YYZ

1 stop23h 50mMultiple Airlines

Sun 12/78:30 pmYYZ - STL

2 stops14h 22mMultiple Airlines

Deal found 10/26

$341

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 October 28, 2025.

Thu 12/1112:04 pmSTL - YWG

1 stop27h 03mMultiple Airlines

Deal found 10/27

$88

Fri 12/1210:42 amSTL - YVR

1 stop26h 30mMultiple Airlines

Deal found 10/28

$98

Thu 11/132:12 pmSTL - YVR

3 stops34h 33mMultiple Airlines

Deal found 10/26

$101

Thu 2/2612:20 pmSTL - YYZ

1 stop10h 00mMultiple Airlines

Deal found 10/27

$108

Mon 12/810:47 amSTL - YYZ

2 stops12h 38mMultiple Airlines

Deal found 10/27

$131

Wed 12/105:05 amSTL - YYZ

1 stop9h 58mAmerican Airlines

Deal found 10/26

$135

Wed 11/127:45 pmSTL - YYC

2 stops22h 21mMultiple Airlines

Deal found 10/26

$136

Wed 12/103:30 pmSTL - YYZ

1 stop7h 41mMultiple Airlines

Deal found 10/27

$138

Thu 12/42:47 pmSTL - YYZ

1 stop19h 56mMultiple Airlines

Deal found 10/27

$139

Fri 12/510:42 amSTL - YYZ

2 stops26h 38mMultiple Airlines

Deal found 10/27

$141

Tue 12/93:30 pmSTL - YYZ

1 stop21h 43mMultiple Airlines

Deal found 10/27

$144

Thu 11/2710:53 amSTL - YEG

3 stops29h 51mMultiple Airlines

Deal found 10/27

$147

Fly from

Fly to

Route

Depart

Return

Price

St. LouisVancouver

STL - YVR

STLYVR

Lambert-St Louis

Wed 2/11

5:44 pm-10:20 pm

1 stop30h 36m

Vancouver Intl

Tue 2/17

9:30 am-4:49 pm

1 stop29h 19m

$248

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Mon 12/15

5:15 am-5:44 pm

1 stop11h 29m

Toronto Pearson Intl

Thu 1/8

1:14 pm-9:15 pm

1 stop9h 01m

$276

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Sat 2/14

12:58 pm-9:15 pm

1 stop7h 17m

Toronto Pearson Intl

Sat 2/21

6:15 am-5:56 pm

1 stop12h 41m

$279

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Wed 1/14

5:06 pm-2:20 pm

1 stop20h 14m

Toronto Pearson Intl

Sat 1/17

2:20 pm-9:46 am

2 stops20h 26m

$296

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Wed 1/7

5:11 pm-2:16 pm

1 stop20h 05m

Toronto Pearson Intl

Sat 1/10

7:10 am-10:33 pm

1 stop16h 23m

$304

St. LouisVancouver

STL - YVR

STLYVR

Lambert-St Louis

Wed 12/10

7:43 pm-12:40 pm

2 stops18h 57m

Vancouver Intl

Wed 12/17

3:40 pm-4:24 pm

1 stop22h 44m

$306

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Wed 12/10

5:05 am-4:03 pm

1 stop9h 58m

Toronto Pearson Intl

Wed 12/17

6:00 am-4:50 pm

1 stop11h 50m

$316

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Sun 2/1

5:11 pm-2:20 pm

1 stop20h 09m

Toronto Pearson Intl

Tue 2/10

1:30 pm-4:49 pm

2 stops28h 19m

$325

St. LouisHalifax

STL - YHZ

STLYHZ

Lambert-St Louis

Mon 1/12

7:00 am-2:31 pm

1 stop5h 31m

Halifax Intl

Sat 1/17

9:00 am-3:29 pm

1 stop8h 29m

$329

St. LouisHalifax

STL - YHZ

STLYHZ

Lambert-St Louis

Mon 1/12

4:05 pm-12:26 am

1 stop6h 21m

Halifax Intl

Sat 1/17

9:00 am-3:29 pm

1 stop8h 29m

$331

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

Showing 1-10 of 60 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 $158). Flying from St. Louis to Canada in October is currently the most expensive (average of $287). 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?

It’s optimal to fly from St. Louis to Canada in the evening. By choosing this option you can save up to 57% on the cost of your flight, compared to a flight in the morning.

Reviews of airlines servicing Canada

Get a feel of what it's like to fly with Delta, United Airlines, and American Airlines 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.

Delta

7.9

Good

7,995 reviews

Reviews

1 / 20

8.0

Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

Delta

7.9

Good

7,995 reviews

Delta

7.9

Good

7,995 reviews

Reviews

1 / 20

8.0

Excellent

Matthew,Oct 2025

GSP - ATL

United Airlines

7.4

Good

8,996 reviews

Delta

7.9

Good

7,995 reviews

Reviews

1 / 20

8.0

Excellent

Matthew,Oct 2025

GSP - ATL

American Airlines

7.2

Good

11,033 reviews

Delta

7.9

Good

7,995 reviews

Reviews

1 / 20

8.0

Excellent

Matthew,Oct 2025

GSP - ATL

WestJet

7.2

Good

3,148 reviews

Delta

7.9

Good

7,995 reviews

Reviews

1 / 20

8.0

Excellent

Matthew,Oct 2025

GSP - ATL

Air Canada

7.1

Good

10,370 reviews

Delta

7.9

Good

7,995 reviews

Reviews

1 / 20

8.0

Excellent

Matthew,Oct 2025

GSP - ATL

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.
How long is the flight from St. Louis to Canada?
There are many flights that can get you from St. Louis to Canada in 6h 21m. Fly via American 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 $135 on American Airlines. Other airlines that offer cheap prices include United Airlines from $176 and Air Canada from $182 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 - Montreal Pierre Elliott Trudeau Intl and Lambert-St Louis - Vancouver Intl.
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 (93%), Jazz (93%) or United Airlines (93%) 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 $141. While the most popular route (Lambert-St Louis - Toronto Pearson Intl) can be booked for $241 on average, our data indicates $1,431 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 $158). Flying from St. Louis to Canada in October is currently the most expensive (average of $287). 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$158	Average$628	FlexibilityNo cancel fee	On-time67%
Delta	Cheapest$170	Average$621	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$214	Average$660	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$348	Average$616	FlexibilityNo cancel fee	On-time71%
Alaska Airlines	Cheapest$402	Average$512	FlexibilityNo cancel fee	On-time75%
WestJet	Cheapest$424	Average$589	FlexibilityNo cancel fee	On-time60%

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$88+ 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 12/11. 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 October 28, 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 October 28, 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 October 28, 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.

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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 October 28, 2025.

Reviews of airlines servicing Canada

Get a feel of what it's like to fly with Delta, United Airlines, and American Airlines 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.

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?

How long is the flight 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?

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Alternative routes for St. Louis to Canada

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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 October 28, 2025.