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 36m. Fly via Air Canada, Delta, or American Airlines 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 $141 on Air Canada. Other airlines that offer cheap prices include American Airlines from $167 and United Airlines from $173 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 - Vancouver Intl, Lambert-St Louis - Toronto Pearson Intl and Lambert-St Louis - Montreal Pierre Elliott Trudeau Intl.

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

Looking at all options, your cheapest flight can be booked for $209. While the most popular route (Lambert-St Louis - Vancouver Intl) can be booked for $273 on average, our data indicates $1,293 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 (94%), Jazz (94%) or United Airlines (94%) 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.

$108+ Flights from St. Louis to Canada

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from St. Louis to Canada with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap 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 December 12, 2025.

Thu 12/256:00 amSTL - YYZ

1 stop3h 56mAmerican Airlines

Tue 12/301:12 pmYYZ - STL

1 stop11h 32mAmerican Airlines

Deal found 12/11

$494

Thu 12/258:05 amSTL - YYZ

2 stops9h 52mUnited Airlines

Tue 12/305:30 pmYYZ - STL

1 stop5h 13mUnited Airlines

Deal found 12/10

$503

Sun 12/147:00 amSTL - YVR

1 stop7h 30mAmerican Airlines

Sun 12/211:30 pmYVR - STL

1 stop17h 26mAmerican Airlines

Deal found 12/10

$552

Tue 12/306:35 pmSTL - YYZ

1 stop4h 24mAir Canada

Fri 1/26:45 pmYYZ - STL

1 stop4h 58mAir Canada

Deal found 12/11

$569

Mon 12/156:00 amSTL - YVR

1 stop7h 03mMultiple Airlines

Thu 12/183:40 pmYVR - STL

2 stops16h 22mMultiple Airlines

Deal found 12/11

$575

Thu 12/253:10 pmSTL - YYZ

2 stops7h 36mAir Canada

Tue 12/304:50 pmYYZ - STL

1 stop5h 53mAir Canada

Deal found 12/11

$579

Mon 12/156:00 amSTL - YVR

1 stop7h 03mWestJet

Thu 12/1812:13 pmYVR - STL

1 stop9h 16mWestJet

Deal found 12/11

$587

Fri 12/198:37 pmSTL - YYZ

1 stop14h 06mMultiple Airlines

Sun 1/48:20 pmYYZ - STL

1 stop14h 25mMultiple Airlines

Deal found 12/9

$588

Wed 12/316:00 amSTL - YUL

1 stop17h 40mMultiple Airlines

Mon 1/54:35 pmYUL - STL

1 stop30h 58mMultiple Airlines

Deal found 12/11

$592

Tue 12/306:35 pmSTL - YYZ

1 stop4h 24mUnited Airlines

Thu 1/19:00 amYYZ - STL

2 stops14h 22mUnited Airlines

Deal found 12/10

$612

Tue 12/3010:48 amSTL - YUL

2 stops36h 42mMultiple Airlines

Mon 1/54:35 pmYUL - STL

1 stop30h 58mMultiple Airlines

Deal found 12/11

$614

Mon 12/157:00 amSTL - YVR

1 stop7h 30mAmerican Airlines

Thu 12/181:30 pmYVR - STL

1 stop17h 26mAmerican Airlines

Deal found 12/11

$622

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 December 12, 2025.

Sun 1/255:42 pmSTL - YYZ

2 stops25h 29mMultiple Airlines

Sun 2/18:00 pmYYZ - STL

1 stop25h 50mMultiple Airlines

Deal found 12/10

$279

Sat 1/174:05 pmSTL - YHZ

1 stop6h 36mAir Canada

Wed 1/219:00 amYHZ - STL

1 stop8h 29mAir Canada

Deal found 12/9

$332

Tue 6/912:00 pmSTL - YHZ

1 stop9h 27mDelta

Wed 6/176:40 amYHZ - STL

1 stop7h 14mDelta

Deal found 12/10

$333

Thu 1/226:44 pmSTL - YYC

1 stop19h 04mAmerican Airlines

Sun 1/251:40 pmYYC - STL

1 stop19h 40mAmerican Airlines

Deal found 12/11

$347

Sat 1/174:49 pmSTL - YHZ

2 stops19h 42mUnited Airlines

Wed 1/213:15 pmYHZ - STL

2 stops9h 43mUnited Airlines

Deal found 12/9

$348

Sun 5/316:45 amSTL - YHZ

1 stop12h 55mWestJet

Fri 6/53:30 pmYHZ - STL

1 stop7h 01mWestJet

Deal found 12/10

$382

Sat 2/76:19 pmSTL - YVR

1 stop7h 51mAlaska Airlines

Mon 2/167:55 amYVR - STL

1 stop27h 56mAlaska Airlines

Deal found 12/11

$423

Thu 1/85:11 pmSTL - YYZ

1 stop20h 05mMultiple Airlines

Thu 1/157:10 amYYZ - STL

1 stop16h 24mMultiple Airlines

Deal found 12/11

$292

Sun 1/259:27 pmSTL - YYC

1 stop26h 38mMultiple Airlines

Sat 1/3112:30 amYYC - STL

1 stop29h 21mMultiple Airlines

Deal found 12/11

$295

Sat 1/107:00 amSTL - YVR

2 stops13h 44mDelta

Sat 1/177:25 amYVR - STL

2 stops12h 10mDelta

Deal found 12/10

$344

Mon 1/126:44 pmSTL - YYC

1 stop19h 04mAmerican Airlines

Fri 1/161:40 pmYYC - STL

1 stop22h 29mAmerican Airlines

Deal found 12/11

$347

Wed 3/48:30 amSTL - YOW

1 stop4h 57mUnited Airlines

Wed 3/185:11 pmYOW - STL

1 stop4h 49mUnited Airlines

Deal found 12/10

$361

Sun 1/184:05 pmSTL - YOW

1 stop6h 03mAir Canada

Wed 1/2110:20 amYOW - STL

1 stop6h 09mAir Canada

Deal found 12/11

$361

Fri 1/238:22 pmSTL - YVR

1 stop16h 50mMultiple Airlines

Fri 1/308:00 amYVR - STL

2 stops28h 46mMultiple Airlines

Deal found 12/10

$313

Sat 2/146:35 pmSTL - YYZ

1 stop15h 21mAmerican Airlines

Sat 2/216:00 amYYZ - STL

1 stop9h 45mAmerican Airlines

Deal found 12/9

$351

Fri 1/236:35 amSTL - YVR

2 stops14h 09mDelta

Fri 1/3011:40 amYVR - STL

2 stops9h 45mDelta

Deal found 12/10

$353

Wed 3/44:05 pmSTL - YOW

1 stop6h 03mAir Canada

Wed 3/189:15 amYOW - STL

1 stop7h 14mAir Canada

Deal found 12/11

$361

Sun 1/255:42 pmSTL - YOW

1 stop22h 31mMultiple Airlines

Sun 2/14:20 pmYOW - STL

1 stop18h 01mMultiple Airlines

Deal found 12/11

$325

Tue 1/64:05 pmSTL - YOW

1 stop6h 03mAir Canada

Tue 1/139:15 amYOW - STL

1 stop7h 14mAir Canada

Deal found 12/9

$362

Tue 5/52:55 pmSTL - YVR

1 stop7h 56mAlaska Airlines

Sat 5/168:00 amYVR - STL

2 stops14h 04mAlaska Airlines

Deal found 12/10

$443

Thu 1/226:35 amSTL - YVR

2 stops14h 09mDelta

Mon 1/267:37 pmYVR - STL

2 stops12h 02mDelta

Deal found 12/10

$385

Tue 1/276:30 amSTL - YYC

2 stops16h 23mUnited Airlines

Wed 1/2812:37 pmYYC - STL

1 stop9h 21mUnited Airlines

Deal found 12/9

$431

Sat 5/165:30 pmSTL - YWG

1 stop5h 57mWestJet

Sat 5/236:30 pmYWG - STL

2 stops22h 15mWestJet

Deal found 12/10

$480

Tue 1/135:11 pmSTL - YYZ

1 stop30h 00mMultiple Airlines

Mon 1/267:10 amYYZ - STL

1 stop17h 23mMultiple Airlines

Deal found 12/9

$339

Sun 5/317:30 amSTL - YHZ

1 stop12h 39mAir Canada

Fri 6/55:15 amYHZ - STL

1 stop16h 49mAir Canada

Deal found 12/11

$379

Sun 1/182:50 pmSTL - YVR

1 stop8h 05mAlaska Airlines

Thu 1/226:00 amYVR - STL

1 stop5h 54mAlaska Airlines

Deal found 12/9

$474

Thu 5/146:45 amSTL - YWG

2 stops17h 17mWestJet

Wed 5/2010:45 amYWG - STL

2 stops9h 46mWestJet

Deal found 12/11

$493

Tue 1/65:11 pmSTL - YOW

1 stop29h 47mMultiple Airlines

Tue 1/137:00 amYOW - STL

2 stops24h 51mMultiple Airlines

Deal found 12/9

$348

Sat 6/66:20 pmSTL - YVR

1 stop6h 21mAlaska Airlines

Sun 6/711:50 amYVR - STL

1 stop24h 17mAlaska Airlines

Deal found 12/10

$489

Mon 1/125:25 pmSTL - YWG

1 stop17h 38mWestJet

Thu 1/155:21 pmYWG - STL

1 stop6h 04mWestJet

Deal found 12/9

$507

Last-minute flights from St. Louis to Canada
Discover last-minute flight deals from St. Louis to Canada. Data last updated December 12, 2025 and is based on user searches.

Tue 1/65:11 pmSTL - YOW

1 stop29h 47mMultiple Airlines

Fri 1/164:20 pmYOW - STL

1 stop31h 14mMultiple Airlines

Deal found 12/11

$323

Thu 1/83:43 pmSTL - YYZ

2 stops19h 00mMultiple Airlines

Thu 1/157:10 amYYZ - STL

1 stop16h 24mMultiple Airlines

Deal found 12/11

$258

Sat 1/107:00 amSTL - YVR

2 stops13h 44mDelta

Sat 1/177:25 amYVR - STL

2 stops12h 10mDelta

Deal found 12/10

$344

Mon 1/121:07 pmSTL - YYZ

1 stop16h 13mMultiple Airlines

Tue 1/133:40 pmYYZ - STL

2 stops16h 11mMultiple Airlines

Deal found 12/10

$275

Mon 1/121:07 pmSTL - YYC

1 stop23h 54mMultiple Airlines

Fri 1/167:30 amYYC - STL

2 stops22h 21mMultiple Airlines

Deal found 12/11

$322

Tue 1/135:11 pmSTL - YYZ

1 stop30h 00mMultiple Airlines

Mon 1/2610:15 amYYZ - STL

2 stops45h 36mMultiple Airlines

Deal found 12/9

$294

Sat 1/174:05 pmSTL - YHZ

1 stop6h 36mAir Canada

Wed 1/219:00 amYHZ - STL

1 stop8h 29mAir Canada

Deal found 12/11

$332

Fri 1/238:22 pmSTL - YVR

1 stop16h 50mMultiple Airlines

Fri 1/308:00 amYVR - STL

2 stops28h 46mMultiple Airlines

Deal found 12/10

$313

Sun 1/255:42 pmSTL - YYZ

2 stops25h 29mMultiple Airlines

Sun 2/18:00 pmYYZ - STL

1 stop25h 50mMultiple Airlines

Deal found 12/10

$279

Sun 1/259:27 pmSTL - YYC

1 stop26h 38mMultiple Airlines

Sat 1/3112:30 amYYC - STL

1 stop29h 21mMultiple Airlines

Deal found 12/11

$295

Sun 1/255:42 pmSTL - YOW

1 stop22h 31mMultiple Airlines

Sun 2/17:00 amYOW - STL

2 stops24h 51mMultiple Airlines

Deal found 12/11

$314

Mon 1/268:22 pmSTL - YVR

2 stops20h 23mMultiple Airlines

Sun 2/13:40 pmYVR - STL

1 stop27h 10mMultiple Airlines

Deal found 12/11

$278

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 December 12, 2025.

Sun 1/255:42 pmSTL - YYZ

2 stops25h 29mMultiple Airlines

Deal found 12/11

$108

Thu 3/510:42 amSTL - YVR

2 stops13h 58mMultiple Airlines

Deal found 12/9

$132

Tue 3/104:51 pmSTL - YYZ

1 stop20h 29mMultiple Airlines

Deal found 12/11

$132

Sat 1/248:22 pmSTL - YYC

2 stops24h 00mMultiple Airlines

Deal found 12/10

$134

Tue 1/275:42 pmSTL - YVR

2 stops43h 30mMultiple Airlines

Deal found 12/10

$135

Fri 3/610:44 pmSTL - YVR

2 stops38h 56mMultiple Airlines

Deal found 12/9

$138

Tue 1/135:11 pmSTL - YYZ

1 stop30h 00mMultiple Airlines

Deal found 12/9

$140

Wed 1/148:32 pmSTL - YYZ

2 stops38h 03mMultiple Airlines

Deal found 12/9

$143

Wed 1/146:44 pmSTL - YYZ

1 stop15h 09mAmerican Airlines

Deal found 12/9

$149

Fri 1/96:35 amSTL - YVR

2 stops14h 09mDelta

Deal found 12/10

$152

Fri 1/93:43 pmSTL - YVR

3 stops41h 31mMultiple Airlines

Deal found 12/10

$153

Sat 3/73:38 pmSTL - YVR

2 stops10h 21mDelta

Deal found 12/9

$164

Find flight deals from St. Louis to Canada

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$258 (Kiwi.com)
One-way from	$108 (Kiwi.com)
Popular in	November
Cheapest in	April
Average price	$492
Good round-trip deal	$634 or less
Good one-way deal	$420 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.

Search Deals

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. 14% potential increase in price ($83 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($18 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 Lambert-St Louis to Canada.

Search Deals

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

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Sun 1/25

5:42 pm-8:11 pm

2 stops25h 29m

Toronto Pearson Intl

Sun 2/1

8:00 pm-8:50 pm

1 stop25h 50m

$279

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Thu 1/8

5:11 pm-2:16 pm

1 stop20h 05m

Toronto Pearson Intl

Thu 1/15

7:10 am-10:34 pm

1 stop16h 24m

$292

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Sun 1/25

9:27 pm-11:05 pm

1 stop26h 38m

Calgary

Sat 1/31

12:30 am-6:51 am

1 stop29h 21m

$295

St. LouisVancouver

STL - YVR

STLYVR

Lambert-St Louis

Fri 1/23

8:22 pm-11:12 am

1 stop16h 50m

Vancouver Intl

Fri 1/30

8:00 am-2:46 pm

2 stops28h 46m

$313

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Sun 1/25

5:42 pm-5:13 pm

1 stop22h 31m

Ottawa

Sun 2/1

4:20 pm-9:21 am

1 stop18h 01m

$325

St. LouisHalifax

STL - YHZ

STLYHZ

Lambert-St Louis

Sat 1/17

4:05 pm-12:41 am

1 stop6h 36m

Halifax Intl

Wed 1/21

9:00 am-3:29 pm

1 stop8h 29m

$332

St. LouisHalifax

STL - YHZ

STLYHZ

Lambert-St Louis

Tue 6/9

12:00 pm-11:27 pm

1 stop9h 27m

Halifax Intl

Wed 6/17

6:40 am-11:54 am

1 stop7h 14m

$333

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Tue 1/13

5:11 pm-12:11 am

1 stop30h 00m

Toronto Pearson Intl

Mon 1/26

7:10 am-11:33 pm

1 stop17h 23m

$339

St. LouisVancouver

STL - YVR

STLYVR

Lambert-St Louis

Sat 1/10

7:00 am-6:44 pm

2 stops13h 44m

Vancouver Intl

Sat 1/17

7:25 am-9:35 pm

2 stops12h 10m

$344

St. LouisCalgary

STL - YYC

STLYYC

Lambert-St Louis

Thu 1/22

6:44 pm-12:48 pm

1 stop19h 04m

Calgary

Sun 1/25

1:40 pm-10:20 am

1 stop19h 40m

$347

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

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 November is currently the most expensive (average of $294). 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

8,007 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Delta

7.9

Good

8,007 reviews

Delta

7.9

Good

8,007 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

United Airlines

7.4

Good

9,095 reviews

Delta

7.9

Good

8,007 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

American Airlines

7.2

Good

11,050 reviews

Delta

7.9

Good

8,007 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

WestJet

7.2

Good

3,195 reviews

Delta

7.9

Good

8,007 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

Air Canada

7.1

Good

10,516 reviews

Delta

7.9

Good

8,007 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - 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 36m. Fly via Air Canada, Delta, or American Airlines 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 $141 on Air Canada. Other airlines that offer cheap prices include American Airlines from $167 and United Airlines from $173 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 - Vancouver Intl, Lambert-St Louis - Toronto Pearson Intl and Lambert-St Louis - Montreal Pierre Elliott Trudeau 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 (94%), Jazz (94%) or United Airlines (94%) 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 $209. While the most popular route (Lambert-St Louis - Vancouver Intl) can be booked for $273 on average, our data indicates $1,293 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 November is currently the most expensive (average of $294). 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$152	Average$588	FlexibilityNo cancel fee	On-time67%
Delta	Cheapest$170	Average$623	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$199	Average$639	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$270	Average$606	FlexibilityNo cancel fee	On-time71%
Alaska Airlines	Cheapest$402	Average$508	FlexibilityNo cancel fee	On-time75%
WestJet	Cheapest$434	Average$592	FlexibilityNo cancel fee	On-time60%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$108+ 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 1/25. 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

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap 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 December 12, 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 December 12, 2025.

Find 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 December 12, 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

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 December 12, 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?

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

100% Free

Book with Flexibility

Travel Smart

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 December 12, 2025.