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

For as low as C$ 472, American Airlines can have you in St. Louis from Canada in 12h 10m. Canada and St. Louis are separated by a distance of 2840 km. This flight may include one or multiple stops.

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

To fly one-way, consider booking your trip with American Airlines, which is currently one of the cheapest options available, starting at C$ 221. United Airlines flights start at C$ 269 while deals on Air Canada start at C$ 432 one-way.

In terms of precipitation, rainfall in St. Louis ranges from 56.0 - 119.0 mm per month. May is typically the wettest month, when rainfall can reach 119.0 mm. February is typically the driest time to visit St. Louis when rainfall is around 56.0 mm.

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 0.0 C).

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

While some choose either Montreal Pierre Elliott Trudeau Intl - Lambert-St Louis or Vancouver Intl - Lambert-St Louis, Toronto Pearson Intl - Lambert-St Louis is the most popular route from Canada to St. Louis.

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

On average you can expect to pay C$ 1,162 for a flight from Canada to St. Louis. The cheapest flight overall is C$ 435 while the most popular route, (Toronto Pearson Intl - Lambert-St Louis) is currently priced at C$ 392.

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

Before booking your flight to St. Louis from Canada, check out the most reliable airlines to get you to your destination on time: Air Canada (75%), Jazz (75%), United Airlines( 75%).

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

Before booking your flight from Canada to St. Louis check out the most popular airlines for this route: American Airlines, Air Canada or Delta.

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

Find a great deal and save up to 245% by booking at least 47 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Canada to St. Louis within the next two weeks, with the cheapest ticket starting at C$ 731.

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

The best pricing can be found in the month of June. Prices to St. Louis from Canada average C$ 658. You can even find prices in June for less than C$ 658, as users have found deals to St. Louis from as low as C$ 412. The month of January appears to be one of the more expensive times to travel to St. Louis from Canada. Flying in the targeted month can save you up to 14%.

What airport do you fly into for flights to St. Louis from Canada?

Lambert-St Louis (STL) is the airport you will fly into if you book a flight from Canada to St. Louis. It is only a 20.4 km journey from Lambert-St Louis (STL) to St. Louis’s city centre.

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

Yes. In addition to deals on Canada to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

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

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Canada to St. Louis.

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

Yes. Cheapflights offers flight deals from Canada to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

C$ 181+ Flights from Canada to St. Louis

Cheap flight deals from Canada to St. Louis

Round-trip from	C$ 369
One-way from	C$ 181
Popular in	January
Cheapest in	June
Average price	C$ 695
Good round-trip deal	C$ 540 or less
Good one-way deal	C$ 496 or less

13/11-17/11
3 total stops
34h 00m total
Canada to St. Louis

Search Deals

12/10
1 total stop
23h 12m total
Canada to St. Louis

Search Deals

Highest demand for flights based on searches. 7% potential increase in price (C$ 74 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease (C$ 13 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in September 2025

Search Deals

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

Search Deals

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

Search Deals

Find flight deals from Canada to St. Louis

Cheapest flights from Canada to St. Louis
Explore the most affordable flight options available from Canada to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 September 2025.

Fri 17/108:05 p.m.YYZ - STL

1 stop20h 51mMultiple Airlines

Mon 20/109:59 p.m.STL - YYZ

2 stops23h 53mMultiple Airlines

Deal found 12/9C$ 363

Thu 13/111:30 p.m.YVR - STL

2 stops22h 27mMultiple Airlines

Mon 17/112:42 p.m.STL - YVR

1 stop11h 33mMultiple Airlines

Deal found 14/9C$ 369

Thu 6/119:45 a.m.YYZ - STL

1 stop29h 12mMultiple Airlines

Mon 10/119:07 p.m.STL - YYZ

1 stop21h 48mMultiple Airlines

Deal found 13/9C$ 392

Thu 30/109:45 a.m.YYZ - STL

1 stop29h 12mMultiple Airlines

Thu 6/116:22 p.m.STL - YYZ

2 stops43h 18mMultiple Airlines

Deal found 14/9C$ 396

Mon 20/1010:40 a.m.YYZ - STL

2 stops23h 27mMultiple Airlines

Thu 23/1010:57 a.m.STL - YYZ

1 stop26h 08mMultiple Airlines

Deal found 15/9C$ 410

Thu 16/101:28 p.m.YVR - STL

1 stop16h 41mAmerican Airlines

Wed 22/108:04 p.m.STL - YVR

1 stop18h 26mAmerican Airlines

Deal found 14/9C$ 414

Wed 15/103:17 p.m.YEG - STL

2 stops18h 32mUnited Airlines

Wed 22/106:30 a.m.STL - YEG

2 stops16h 34mUnited Airlines

Deal found 15/9C$ 417

Mon 29/94:00 p.m.YYZ - STL

2 stops27h 36mMultiple Airlines

Thu 2/1010:35 a.m.STL - YYZ

1 stop9h 20mMultiple Airlines

Deal found 15/9C$ 448

Fri 14/115:30 p.m.YVR - STL

2 stops13h 37mMultiple Airlines

Mon 17/112:42 p.m.STL - YVR

1 stop11h 33mMultiple Airlines

Deal found 14/9C$ 450

Sun 16/119:10 a.m.YVR - STL

1 stop24h 14mMultiple Airlines

Tue 18/117:45 p.m.STL - YVR

2 stops22h 46mMultiple Airlines

Deal found 14/9C$ 452

Sun 28/98:55 a.m.YYC - STL

1 stop23h 11mMultiple Airlines

Wed 1/107:55 p.m.STL - YYC

2 stops22h 22mMultiple Airlines

Deal found 15/9C$ 454

Tue 14/106:45 a.m.YYC - STL

1 stop13h 08mAmerican Airlines

Tue 21/108:04 p.m.STL - YYC

1 stop17h 30mAmerican Airlines

Deal found 15/9C$ 459

Best flights from Canada to St. Louis
Discover carefully curated flight deals from Canada to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 15 September 2025.

Thu 30/109:45 a.m.YYZ - STL

1 stop29h 12mMultiple Airlines

Thu 6/116:22 p.m.STL - YYZ

2 stops43h 18mMultiple Airlines

Deal found 14/9C$ 396

Thu 16/101:28 p.m.YVR - STL

1 stop16h 41mAmerican Airlines

Wed 22/108:04 p.m.STL - YVR

1 stop18h 26mAmerican Airlines

Deal found 14/9C$ 414

Wed 15/103:17 p.m.YEG - STL

2 stops18h 32mUnited Airlines

Wed 22/106:30 a.m.STL - YEG

2 stops16h 34mUnited Airlines

Deal found 15/9C$ 417

Sat 15/117:36 p.m.YVR - STL

2 stops12h 10mDelta

Tue 18/1112:49 p.m.STL - YVR

2 stops13h 10mDelta

Deal found 14/9C$ 472

Sat 25/102:15 p.m.YYZ - STL

Nonstop2h 03mAir Canada

Sun 2/114:05 p.m.STL - YYZ

Nonstop2h 01mAir Canada

Deal found 13/9C$ 558

Sun 28/98:00 p.m.YYC - STL

2 stops12h 59mWestJet

Wed 1/1011:04 a.m.STL - YYC

2 stops14h 40mWestJet

Deal found 15/9C$ 630

Tue 3/36:15 a.m.YYJ - STL

1 stop15h 41mAlaska Airlines

Wed 4/32:55 p.m.STL - YYJ

1 stop9h 38mAlaska Airlines

Deal found 12/9C$ 714

Fri 17/108:05 p.m.YYZ - STL

1 stop20h 51mMultiple Airlines

Mon 20/106:05 p.m.STL - YYZ

1 stop27h 35mMultiple Airlines

Deal found 12/9C$ 408

Tue 14/106:45 a.m.YYC - STL

1 stop13h 08mAmerican Airlines

Tue 21/108:04 p.m.STL - YYC

1 stop17h 30mAmerican Airlines

Deal found 15/9C$ 459

Thu 6/119:45 a.m.YYZ - STL

2 stops24h 22mMultiple Airlines

Mon 10/112:12 p.m.STL - YYZ

1 stop8h 59mMultiple Airlines

Deal found 13/9C$ 435

Thu 13/117:25 a.m.YVR - STL

2 stops13h 58mDelta

Mon 17/117:47 p.m.STL - YVR

2 stops17h 02mDelta

Deal found 14/9C$ 495

Fri 14/1110:30 a.m.YVR - STL

1 stop25h 55mUnited Airlines

Mon 17/115:24 p.m.STL - YVR

1 stop26h 51mUnited Airlines

Deal found 14/9C$ 513

Direct flights from Canada to St. Louis
Explore direct flight options from Canada to St. Louis based on user searches, and compare prices and availability for your desired travel dates. Data last updated 15 September 2025.

Sat 25/102:15 p.m.YYZ - STL

Nonstop2h 03mAir Canada

Sun 2/114:05 p.m.STL - YYZ

Nonstop2h 01mAir Canada

Deal found 14/9C$ 558

Wed 15/102:15 p.m.YYZ - STL

Nonstop2h 03mAir Canada

Tue 21/109:15 a.m.STL - YYZ

Nonstop1h 56mAir Canada

Deal found 13/9C$ 579

Mon 24/112:00 p.m.YYZ - STL

Nonstop2h 29mAir Canada

Fri 28/114:05 p.m.STL - YYZ

Nonstop2h 01mAir Canada

Deal found 15/9C$ 648

Wed 29/102:00 p.m.YYZ - STL

Nonstop2h 29mUnited Airlines

Wed 5/114:05 p.m.STL - YYZ

Nonstop2h 01mUnited Airlines

Deal found 14/9C$ 652

Thu 2/102:15 p.m.YYZ - STL

Nonstop2h 03mUnited Airlines

Sun 5/109:15 a.m.STL - YYZ

Nonstop1h 56mUnited Airlines

Deal found 14/9C$ 653

Fri 17/102:15 p.m.YYZ - STL

Nonstop2h 03mAir Canada

Mon 20/109:15 a.m.STL - YYZ

Nonstop1h 56mAir Canada

Deal found 12/9C$ 669

Fri 17/102:15 p.m.YYZ - STL

Nonstop2h 03mAir Canada

Sun 19/109:15 a.m.STL - YYZ

Nonstop1h 56mAir Canada

Deal found 14/9C$ 676

Tue 3/32:00 p.m.YYZ - STL

Nonstop2h 29mAir Canada

Wed 4/34:05 p.m.STL - YYZ

Nonstop2h 01mAir Canada

Deal found 13/9C$ 677

Sat 4/102:15 p.m.YYZ - STL

Nonstop2h 03mAir Canada

Mon 6/109:15 a.m.STL - YYZ

Nonstop1h 56mAir Canada

Deal found 15/9C$ 689

Wed 26/112:00 p.m.YYZ - STL

Nonstop2h 29mAir Canada

Fri 28/114:05 p.m.STL - YYZ

Nonstop2h 01mAir Canada

Deal found 15/9C$ 700

Mon 24/112:00 p.m.YYZ - STL

Nonstop2h 29mAir Canada

Sun 30/114:05 p.m.STL - YYZ

Nonstop2h 01mAir Canada

Deal found 15/9C$ 717

Wed 26/112:00 p.m.YYZ - STL

Nonstop2h 29mAir Canada

Sun 30/114:05 p.m.STL - YYZ

Nonstop2h 01mAir Canada

Deal found 15/9C$ 769

Last-minute flights from Canada to St. Louis
Discover last-minute flight deals from Canada to St. Louis. Data last updated 15 September 2025 and is based on user searches.

Sun 28/98:55 a.m.YYC - STL

1 stop23h 11mMultiple Airlines

Wed 1/107:55 p.m.STL - YYC

2 stops22h 22mMultiple Airlines

Deal found 15/9C$ 454

Sun 28/98:55 a.m.YYC - STL

1 stop23h 11mMultiple Airlines

Fri 3/107:55 p.m.STL - YYC

2 stops25h 05mMultiple Airlines

Deal found 14/9C$ 474

Mon 29/94:00 p.m.YYZ - STL

2 stops27h 36mMultiple Airlines

Thu 2/1010:35 a.m.STL - YYZ

1 stop9h 20mMultiple Airlines

Deal found 15/9C$ 448

Sat 4/106:30 a.m.YYZ - STL

1 stop28h 32mMultiple Airlines

Mon 6/109:32 p.m.STL - YYZ

1 stop15h 20mMultiple Airlines

Deal found 15/9C$ 466

Sun 12/1010:25 p.m.YYZ - STL

2 stops35h 42mMultiple Airlines

Sun 19/1010:57 a.m.STL - YYZ

1 stop26h 08mMultiple Airlines

Deal found 14/9C$ 475

Mon 13/104:00 p.m.YYZ - STL

2 stops42h 07mMultiple Airlines

Mon 20/106:05 p.m.STL - YYZ

1 stop27h 35mMultiple Airlines

Deal found 15/9C$ 470

Tue 14/106:45 a.m.YYC - STL

1 stop13h 08mAmerican Airlines

Tue 21/108:04 p.m.STL - YYC

1 stop17h 30mAmerican Airlines

Deal found 15/9C$ 459

Wed 15/103:17 p.m.YEG - STL

2 stops18h 32mUnited Airlines

Wed 22/106:30 a.m.STL - YEG

2 stops16h 34mUnited Airlines

Deal found 15/9C$ 417

Thu 16/101:28 p.m.YVR - STL

1 stop16h 41mAmerican Airlines

Wed 22/108:04 p.m.STL - YVR

1 stop18h 26mAmerican Airlines

Deal found 14/9C$ 414

Mon 20/1010:40 a.m.YYZ - STL

2 stops23h 27mMultiple Airlines

Thu 23/1010:57 a.m.STL - YYZ

1 stop26h 08mMultiple Airlines

Deal found 15/9C$ 410

Wed 29/107:50 a.m.YUL - STL

2 stops11h 30mAmerican Airlines

Wed 5/115:40 p.m.STL - YUL

1 stop20h 31mAmerican Airlines

Deal found 14/9C$ 501

Thu 30/109:45 a.m.YYZ - STL

1 stop29h 12mMultiple Airlines

Thu 6/116:22 p.m.STL - YYZ

2 stops43h 18mMultiple Airlines

Deal found 14/9C$ 396

One-way flights from Canada to St. Louis
Search for one-way flight options from Canada to St. Louis. Find affordable one-way fares based on user searches. Data last updated 15 September 2025.

Sun 12/108:55 a.m.YYC - STL

1 stop23h 12mMultiple Airlines

Deal found 14/9C$ 181

Mon 13/108:55 a.m.YYC - STL

1 stop23h 12mMultiple Airlines

Deal found 14/9C$ 182

Thu 30/101:30 p.m.YVR - STL

2 stops22h 27mMultiple Airlines

Deal found 15/9C$ 198

Wed 19/1111:00 p.m.YVR - STL

1 stop13h 29mMultiple Airlines

Deal found 14/9C$ 206

Wed 29/1012:30 p.m.YYZ - STL

2 stops26h 27mMultiple Airlines

Deal found 14/9C$ 210

Wed 29/109:45 p.m.YYC - STL

2 stops11h 27mMultiple Airlines

Deal found 14/9C$ 217

Thu 30/109:45 a.m.YYZ - STL

1 stop29h 12mMultiple Airlines

Deal found 14/9C$ 217

Thu 6/119:45 a.m.YYZ - STL

1 stop29h 12mMultiple Airlines

Deal found 14/9C$ 220

Wed 29/101:29 p.m.YYC - STL

1 stop23h 15mAmerican Airlines

Deal found 14/9C$ 221

Mon 29/97:00 a.m.YVR - STL

3 stops33h 36mMultiple Airlines

Deal found 15/9C$ 236

Fri 31/102:15 p.m.YHZ - STL

2 stops25h 20mAmerican Airlines

Deal found 15/9C$ 238

Thu 16/107:45 a.m.YVR - STL

2 stops25h 58mMultiple Airlines

Deal found 15/9C$ 238

Fly from

Fly to

Route

Depart

Return

Price

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Thu 30/10

9:45 a.m.-1:57 p.m.

1 stop29h 12m

Lambert-St Louis

Thu 6/11

6:22 p.m.-2:40 p.m.

2 stops43h 18m

C$ 396

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Fri 17/10

8:05 p.m.-3:56 p.m.

1 stop20h 51m

Lambert-St Louis

Mon 20/10

6:05 p.m.-10:40 p.m.

1 stop27h 35m

C$ 408

VancouverSt. Louis

YVR - STL

YVRSTL

Vancouver Intl

Thu 16/10

1:28 p.m.-8:09 a.m.

1 stop16h 41m

Lambert-St Louis

Wed 22/10

8:04 p.m.-12:30 p.m.

1 stop18h 26m

C$ 414

EdmontonSt. Louis

YEG - STL

YEGSTL

Edmonton

Wed 15/10

3:17 p.m.-10:49 a.m.

2 stops18h 32m

Lambert-St Louis

Wed 22/10

6:30 a.m.-10:04 p.m.

2 stops16h 34m

C$ 417

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Thu 6/11

9:45 a.m.-9:07 a.m.

2 stops24h 22m

Lambert-St Louis

Mon 10/11

2:12 p.m.-12:11 a.m.

1 stop8h 59m

C$ 435

VancouverSt. Louis

YVR - STL

YVRSTL

Vancouver Intl

Fri 14/11

5:30 p.m.-9:07 a.m.

2 stops13h 37m

Lambert-St Louis

Mon 17/11

2:42 p.m.-12:15 a.m.

1 stop11h 33m

C$ 450

VancouverSt. Louis

YVR - STL

YVRSTL

Vancouver Intl

Sat 15/11

5:30 p.m.-9:07 a.m.

2 stops13h 37m

Lambert-St Louis

Mon 17/11

2:42 p.m.-12:15 a.m.

1 stop11h 33m

C$ 450

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Sun 28/9

8:55 a.m.-9:06 a.m.

1 stop23h 11m

Lambert-St Louis

Wed 1/10

7:55 p.m.-5:17 p.m.

2 stops22h 22m

C$ 454

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Tue 14/10

6:45 a.m.-8:53 p.m.

1 stop13h 08m

Lambert-St Louis

Tue 21/10

8:04 p.m.-12:34 p.m.

1 stop17h 30m

C$ 459

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Mon 6/10

9:50 a.m.-8:37 p.m.

1 stop11h 47m

Lambert-St Louis

Mon 13/10

9:59 p.m.-1:38 p.m.

2 stops38h 39m

C$ 461

Flights are sorted by cheapest round-trip flights first.

Deals found on 14/9

Showing 1-10 of 60 results

...

Best time to book a flight from Canada to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Canada with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

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

Currently, January is the cheapest month in which you can book a flight from Canada to St. Louis (average of C$ 365). Flying from Canada to St. Louis in September is currently the most expensive (average of C$ 491). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from CA to STL?

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

Weekly flight availability from Canada to St. Louis

The most flights from CA0 to STL are scheduled on a Monday (4 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (4 on average).

Reviews of airlines servicing St. Louis

Read through reviews of airlines operating flights from Canada to St. Louis, such as Delta,United Airlines, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,954 reviews

Check prices

Reviews

1 / 20

6.0

Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others

Delta

8.0

Very good

7,954 reviews

Delta

8.0

Very good

7,954 reviews

Check prices

Reviews

1 / 20

6.0

Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others

United Airlines

7.4

Good

8,929 reviews

Delta

8.0

Very good

7,954 reviews

Check prices

Reviews

1 / 20

6.0

Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,954 reviews

Check prices

Reviews

1 / 20

6.0

Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others

WestJet

7.2

Good

3,091 reviews

Delta

8.0

Very good

7,954 reviews

Check prices

Reviews

1 / 20

6.0

Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others

Air Canada

7.1

Good

10,000 reviews

Delta

8.0

Very good

7,954 reviews

Check prices

Reviews

1 / 20

6.0

Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others

Related info for your journey

What airport do you fly into for flights to St. Louis from Canada?
Lambert-St Louis (STL) is the airport you will fly into if you book a flight from Canada to St. Louis. It is only a 20.4 km journey from Lambert-St Louis (STL) to St. Louis’s city centre.
How long is the flight from Canada to St. Louis?
For as low as C$ 472, American Airlines can have you in St. Louis from Canada in 12h 10m. Canada and St. Louis are separated by a distance of 2840 km. This flight may include one or multiple stops.
What are the cheapest airlines to fly from Canada to St. Louis one-way?
To fly one-way, consider booking your trip with American Airlines, which is currently one of the cheapest options available, starting at C$ 221. United Airlines flights start at C$ 269 while deals on Air Canada start at C$ 432 one-way.
What are the most popular routes from Canada to St. Louis?
While some choose either Montreal Pierre Elliott Trudeau Intl - Lambert-St Louis or Vancouver Intl - Lambert-St Louis, Toronto Pearson Intl - Lambert-St Louis is the most popular route from Canada to St. Louis.
What are the most reliable airlines from Canada to St. Louis?
Before booking your flight to St. Louis from Canada, check out the most reliable airlines to get you to your destination on time: Air Canada (75%), Jazz (75%), United Airlines( 75%).
What are the cheapest flights from Canada to St. Louis?
On average you can expect to pay C$ 1,162 for a flight from Canada to St. Louis. The cheapest flight overall is C$ 435 while the most popular route, (Toronto Pearson Intl - Lambert-St Louis) is currently priced at C$ 392.
Can I find deals for flights from Canada to St. Louis that include hotel bookings?
Yes. In addition to deals on Canada to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Canada to St. Louis?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Canada to St. Louis.
Can I find deals for business class flights from Canada to St. Louis?
Yes. Cheapflights offers flight deals from Canada to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Canada to St. Louis?
Currently, January is the cheapest month in which you can book a flight from Canada to St. Louis (average of C$ 365). Flying from Canada to St. Louis in September is currently the most expensive (average of C$ 491). 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

Chesterfield

St. Peters

Browse thousands of different options on Cheapflights for your next trip

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Top 5 airlines flying from Canada to St. Louis

Airline	Cheapest	Average	Flexibility	On-time
WestJet	CheapestC$ 255	AverageC$ 762	FlexibilityNo cancel fee	On-time60%	Search WestJet flights
United Airlines	CheapestC$ 321	AverageC$ 753	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Air Canada	CheapestC$ 329	AverageC$ 728	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
Delta	CheapestC$ 366	AverageC$ 597	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
American Airlines	CheapestC$ 430	AverageC$ 685	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights

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Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Canada to St. Louis. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Canada to St. Louis for you. Better yet — we are completely free to use.

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Yes! Cheapflights helps users easily find flights from Canada to St. Louis with no change fees.

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Cheap flights from Canada to St. Louis from C$ 181

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 12/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Canada to St. Louis

Keep the following information in mind while searching for Canada to St. Louis flight deals. Data was last updated 15 September 2025.

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Find flight deals from Canada to St. Louis

Cheapest flights from Canada to St. LouisExplore the most affordable flight options available from Canada to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 September 2025.

Explore the most affordable flight options available from Canada to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 September 2025.

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

Best time to book a flight from Canada to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Canada with our price prediction graph.

Cheapflights Insights

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

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

What is the cheapest time of day to fly from CA to STL?

Find hourly flight availability from Canada to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 15 September 2025.

Weekly flight availability from Canada to St. Louis

Explore weekly flight availability from Canada to St. Louis. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 15 September 2025.

Reviews of airlines servicing St. Louis

Read through reviews of airlines operating flights from Canada to St. Louis, such as Delta,United Airlines, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Canada to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to St. Louis from Canada?

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

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

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

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

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

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

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

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

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

Travelling to a place near St. Louis?

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Alternative routes for Canada to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.

Top 5 airlines flying from Canada to St. Louis

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Canada to St. Louis?

Why should you use Cheapflights to find cheap flight tickets from Canada to St. Louis?

Can Cheapflights find flights from Canada to St. Louis with no change fees?

Can Cheapflights notify me if prices for flights from Canada to St. Louis become cheaper?

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Cheapest flights from Canada to St. Louis
Explore the most affordable flight options available from Canada to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 September 2025.