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

For as low as C$ 382, Air Canada can have you in St. Louis from Canada in 8h 29m. Canada and St. Louis are separated by a distance of 2314 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 Air Canada, which is currently one of the cheapest options available, starting at C$ 263. United Airlines flights start at C$ 313 while deals on WestJet start at C$ 373 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$ 574 for a flight from Canada to St. Louis. The cheapest flight overall is C$ 439 while the most popular route, (Toronto Pearson Intl - Lambert-St Louis) is currently priced at C$ 304.

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: United Airlines (87%), Air Canada (77%), Jazz( 77%).

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: Air Canada, United Airlines or WestJet.

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$ 180+ Flights from Canada to St. Louis

Cheap flight deals from Canada to St. Louis

Enter your travel dates to find the best prices.

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 18 December 2025.

Fri 26/126:00 a.m.YVR - STL

2 stops10h 20mDelta

Wed 31/127:20 a.m.STL - YVR

1 stop11h 22mDelta

Deal found 16/12C$ 550

Thu 25/129:35 a.m.YYZ - STL

2 stops25h 27mMultiple Airlines

Sun 18/11:35 p.m.STL - YYZ

1 stop16h 12mMultiple Airlines

Deal found 16/12C$ 690

Wed 24/126:30 p.m.YVR - STL

2 stops18h 59mAir Canada

Wed 31/124:05 p.m.STL - YVR

1 stop10h 45mAir Canada

Deal found 16/12C$ 710

Mon 22/129:00 a.m.YVR - STL

2 stops11h 16mWestJet

Mon 29/126:05 a.m.STL - YVR

1 stop7h 23mWestJet

Deal found 17/12C$ 719

Wed 24/128:45 a.m.YVR - STL

1 stop11h 37mUnited Airlines

Thu 1/19:00 a.m.STL - YVR

1 stop14h 10mUnited Airlines

Deal found 16/12C$ 723

Sun 21/129:00 a.m.YVR - STL

2 stops11h 16mWestJet

Mon 29/126:29 a.m.STL - YVR

2 stops11h 31mWestJet

Deal found 17/12C$ 733

Sun 21/129:00 a.m.YVR - STL

2 stops11h 16mWestJet

Thu 1/16:05 a.m.STL - YVR

1 stop7h 23mWestJet

Deal found 16/12C$ 743

Sun 21/129:00 a.m.YVR - STL

2 stops24h 12mWestJet

Tue 30/126:29 a.m.STL - YVR

2 stops11h 31mWestJet

Deal found 16/12C$ 756

Sun 21/129:00 a.m.YVR - STL

2 stops24h 12mWestJet

Sun 28/127:06 p.m.STL - YVR

1 stop18h 22mWestJet

Deal found 16/12C$ 758

Thu 25/128:45 a.m.YVR - STL

2 stops11h 31mDelta

Thu 1/17:20 a.m.STL - YVR

2 stops15h 34mDelta

Deal found 16/12C$ 761

Fri 19/126:30 a.m.YYC - STL

1 stop12h 00mAmerican Airlines

Fri 2/15:16 a.m.STL - YYC

1 stop7h 23mAmerican Airlines

Deal found 16/12C$ 765

Thu 25/122:00 p.m.YYZ - STL

Nonstop2h 29mAir Canada

Sun 18/14:05 p.m.STL - YYZ

Nonstop2h 01mAir Canada

Deal found 16/12C$ 772

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 18 December 2025.

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

1 stop15h 39mMultiple Airlines

Thu 22/15:42 p.m.STL - YYZ

1 stop19h 38mMultiple Airlines

Deal found 17/12C$ 331

Tue 27/19:00 a.m.YHZ - STL

1 stop8h 29mAir Canada

Mon 2/24:05 p.m.STL - YHZ

1 stop6h 01mAir Canada

Deal found 15/12C$ 382

Tue 27/13:15 p.m.YHZ - STL

2 stops9h 43mUnited Airlines

Mon 2/26:40 p.m.STL - YHZ

2 stops17h 51mUnited Airlines

Deal found 15/12C$ 390

Wed 7/11:21 p.m.YVR - STL

2 stops8h 04mDelta

Thu 26/22:22 p.m.STL - YVR

2 stops8h 38mDelta

Deal found 17/12C$ 438

Sat 31/17:55 a.m.YVR - STL

1 stop27h 59mAlaska Airlines

Sat 7/26:19 p.m.STL - YVR

1 stop7h 51mAlaska Airlines

Deal found 16/12C$ 470

Mon 26/16:00 a.m.YHZ - STL

2 stops16h 06mWestJet

Wed 28/16:35 a.m.STL - YHZ

2 stops17h 06mWestJet

Deal found 17/12C$ 481

Thu 29/111:35 a.m.YYZ - STL

1 stop7h 39mAmerican Airlines

Sat 31/16:43 p.m.STL - YYZ

1 stop15h 10mAmerican Airlines

Deal found 16/12C$ 504

Thu 8/13:40 p.m.YVR - STL

1 stop18h 32mMultiple Airlines

Thu 26/210:11 p.m.STL - YVR

1 stop26h 09mMultiple Airlines

Deal found 17/12C$ 331

Thu 22/17:10 a.m.YYZ - STL

1 stop17h 23mMultiple Airlines

Mon 26/110:16 a.m.STL - YYZ

1 stop12h 55mMultiple Airlines

Deal found 17/12C$ 333

Thu 8/15:11 p.m.YOW - STL

1 stop6h 47mUnited Airlines

Mon 12/17:00 a.m.STL - YOW

1 stop5h 32mUnited Airlines

Deal found 15/12C$ 419

Thu 8/18:00 p.m.YYZ - STL

1 stop17h 12mMultiple Airlines

Sun 11/112:37 p.m.STL - YYZ

2 stops17h 23mMultiple Airlines

Deal found 16/12C$ 347

Sat 31/17:25 a.m.YVR - STL

2 stops12h 13mDelta

Sat 7/22:38 p.m.STL - YVR

2 stops11h 21mDelta

Deal found 16/12C$ 442

Wed 14/15:15 p.m.YYZ - STL

1 stop30h 19mMultiple Airlines

Wed 21/15:42 p.m.STL - YYZ

1 stop29h 29mMultiple Airlines

Deal found 17/12C$ 351

Thu 8/12:00 p.m.YYZ - STL

Nonstop2h 29mAir Canada

Sun 11/14:05 p.m.STL - YYZ

Nonstop2h 01mAir Canada

Deal found 16/12C$ 468

Thu 22/15:55 p.m.YOW - STL

1 stop7h 04mUnited Airlines

Sun 25/16:40 p.m.STL - YOW

2 stops17h 52mUnited Airlines

Deal found 16/12C$ 430

Fri 6/26:00 a.m.YVR - STL

1 stop5h 54mAlaska Airlines

Sun 8/22:50 p.m.STL - YVR

1 stop8h 05mAlaska Airlines

Deal found 16/12C$ 503

Tue 24/211:38 a.m.YYZ - STL

1 stop11h 31mAmerican Airlines

Sat 28/210:04 a.m.STL - YYZ

1 stop4h 58mAmerican Airlines

Deal found 15/12C$ 506

Thu 29/15:30 p.m.YVR - STL

1 stop25h 18mMultiple Airlines

Mon 2/28:22 p.m.STL - YVR

2 stops22h 26mMultiple Airlines

Deal found 16/12C$ 351

Mon 26/14:20 p.m.YHZ - STL

2 stops25h 09mAir Canada

Wed 28/14:05 p.m.STL - YHZ

1 stop6h 36mAir Canada

Deal found 16/12C$ 490

Thu 29/17:35 p.m.YVR - STL

1 stop16h 19mAlaska Airlines

Mon 2/22:50 p.m.STL - YVR

1 stop27h 55mAlaska Airlines

Deal found 15/12C$ 524

Thu 22/16:30 a.m.YYC - STL

1 stop9h 15mDelta

Mon 26/15:25 p.m.STL - YYC

1 stop28h 29mDelta

Deal found 15/12C$ 536

Mon 26/13:15 p.m.YHZ - STL

2 stops9h 43mUnited Airlines

Wed 28/17:00 a.m.STL - YHZ

1 stop5h 31mUnited Airlines

Deal found 15/12C$ 489

Thu 22/14:20 p.m.YOW - STL

1 stop8h 13mMultiple Airlines

Sun 25/15:42 p.m.STL - YOW

1 stop22h 31mMultiple Airlines

Deal found 15/12C$ 378

Sat 31/11:01 p.m.YYJ - STL

1 stop22h 53mAlaska Airlines

Sat 7/26:19 p.m.STL - YYJ

1 stop19h 52mAlaska Airlines

Deal found 17/12C$ 546

Wed 7/13:45 p.m.YVR - STL

2 stops18h 27mMultiple Airlines

Thu 26/210:11 p.m.STL - YVR

1 stop26h 09mMultiple Airlines

Deal found 17/12C$ 390

Fri 9/19:15 a.m.YEG - STL

1 stop13h 10mWestJet

Fri 16/16:10 a.m.STL - YEG

1 stop10h 49mWestJet

Deal found 17/12C$ 722

Fri 30/19:15 a.m.YEG - STL

1 stop24h 28mDelta

Mon 2/26:10 a.m.STL - YEG

1 stop10h 45mDelta

Deal found 17/12C$ 612

Fri 20/212:58 p.m.YUL - STL

2 stops11h 30mAmerican Airlines

Mon 23/210:04 a.m.STL - YUL

2 stops11h 40mAmerican Airlines

Deal found 15/12C$ 701

Thu 29/112:05 a.m.YEG - STL

2 stops19h 38mWestJet

Mon 2/26:10 a.m.STL - YEG

2 stops19h 29mWestJet

Deal found 17/12C$ 736

Fri 9/112:50 p.m.YEG - STL

2 stops32h 43mMultiple Airlines

Fri 16/18:32 p.m.STL - YEG

1 stop16h 39mMultiple Airlines

Deal found 17/12C$ 422

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 18 December 2025.

Thu 8/12:00 p.m.YYZ - STL

Nonstop2h 29mAir Canada

Sun 11/14:05 p.m.STL - YYZ

Nonstop2h 01mAir Canada

Deal found 16/12C$ 468

Sat 14/22:00 p.m.YYZ - STL

Nonstop2h 29mAir Canada

Sun 15/24:05 p.m.STL - YYZ

Nonstop2h 01mAir Canada

Deal found 15/12C$ 518

Thu 15/12:00 p.m.YYZ - STL

Nonstop2h 29mAir Canada

Sat 17/14:05 p.m.STL - YYZ

Nonstop2h 01mAir Canada

Deal found 18/12C$ 528

Tue 3/22:00 p.m.YYZ - STL

Nonstop2h 29mAir Canada

Sun 8/24:05 p.m.STL - YYZ

Nonstop2h 01mAir Canada

Deal found 16/12C$ 540

Thu 22/12:00 p.m.YYZ - STL

Nonstop2h 29mAir Canada

Mon 26/14:05 p.m.STL - YYZ

Nonstop2h 01mAir Canada

Deal found 17/12C$ 550

Wed 14/12:00 p.m.YYZ - STL

Nonstop2h 29mAir Canada

Wed 21/14:05 p.m.STL - YYZ

Nonstop2h 01mAir Canada

Deal found 17/12C$ 551

Fri 13/22:00 p.m.YYZ - STL

Nonstop2h 29mAir Canada

Sun 15/24:05 p.m.STL - YYZ

Nonstop2h 01mAir Canada

Deal found 15/12C$ 576

Thu 15/12:00 p.m.YYZ - STL

Nonstop2h 29mAir Canada

Thu 22/14:05 p.m.STL - YYZ

Nonstop2h 01mAir Canada

Deal found 17/12C$ 584

Thu 2/42:10 p.m.YYZ - STL

Nonstop2h 14mAir Canada

Mon 6/44:05 p.m.STL - YYZ

Nonstop1h 57mAir Canada

Deal found 16/12C$ 664

Tue 28/42:10 p.m.YYZ - STL

Nonstop2h 14mAir Canada

Sun 3/57:30 a.m.STL - YYZ

Nonstop1h 51mAir Canada

Deal found 17/12C$ 682

Thu 8/12:00 p.m.YYZ - STL

Nonstop2h 29mAir Canada

Mon 12/14:05 p.m.STL - YYZ

Nonstop2h 01mAir Canada

Deal found 15/12C$ 703

Mon 15/66:10 p.m.YUL - STL

Nonstop2h 55mAir Canada

Wed 17/61:00 p.m.STL - YUL

Nonstop2h 35mAir Canada

Deal found 16/12C$ 982

Last-minute flights from Canada to St. Louis
Discover last-minute flight deals from Canada to St. Louis. Data last updated 18 December 2025 and is based on user searches.

Wed 7/13:45 p.m.YVR - STL

2 stops18h 27mMultiple Airlines

Thu 26/210:11 p.m.STL - YVR

1 stop26h 09mMultiple Airlines

Deal found 17/12C$ 390

Thu 8/13:40 p.m.YVR - STL

1 stop18h 32mMultiple Airlines

Thu 26/210:11 p.m.STL - YVR

1 stop26h 09mMultiple Airlines

Deal found 17/12C$ 331

Thu 8/18:00 p.m.YYZ - STL

1 stop17h 12mMultiple Airlines

Sun 11/112:37 p.m.STL - YYZ

2 stops17h 23mMultiple Airlines

Deal found 16/12C$ 347

Fri 9/17:55 p.m.YYZ - STL

2 stops15h 07mMultiple Airlines

Mon 12/15:11 p.m.STL - YYZ

1 stop20h 05mMultiple Airlines

Deal found 16/12C$ 404

Wed 14/11:30 p.m.YYZ - STL

2 stops24h 10mMultiple Airlines

Wed 21/15:42 p.m.STL - YYZ

1 stop29h 29mMultiple Airlines

Deal found 17/12C$ 350

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

1 stop15h 39mMultiple Airlines

Thu 22/15:42 p.m.STL - YYZ

1 stop19h 38mMultiple Airlines

Deal found 17/12C$ 331

Thu 22/17:10 a.m.YYZ - STL

1 stop17h 23mMultiple Airlines

Mon 26/110:16 a.m.STL - YYZ

1 stop12h 55mMultiple Airlines

Deal found 17/12C$ 333

Thu 22/14:20 p.m.YOW - STL

1 stop8h 13mMultiple Airlines

Sun 25/15:42 p.m.STL - YOW

1 stop22h 31mMultiple Airlines

Deal found 15/12C$ 378

Tue 27/19:00 a.m.YHZ - STL

1 stop8h 29mAir Canada

Mon 2/24:05 p.m.STL - YHZ

1 stop6h 01mAir Canada

Deal found 15/12C$ 382

Tue 27/13:15 p.m.YHZ - STL

2 stops9h 43mUnited Airlines

Mon 2/26:40 p.m.STL - YHZ

2 stops17h 51mUnited Airlines

Deal found 15/12C$ 390

Thu 29/15:30 p.m.YVR - STL

1 stop25h 18mMultiple Airlines

Mon 2/28:22 p.m.STL - YVR

2 stops22h 26mMultiple Airlines

Deal found 16/12C$ 351

Sat 31/19:45 p.m.YYC - STL

2 stops32h 06mMultiple Airlines

Sat 7/28:22 p.m.STL - YYC

1 stop16h 21mMultiple Airlines

Deal found 17/12C$ 299

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 18 December 2025.

Mon 12/17:45 p.m.YVR - STL

2 stops33h 06mMultiple Airlines

Deal found 17/12C$ 180

Sat 24/112:30 a.m.YYC - STL

1 stop29h 21mMultiple Airlines

Deal found 17/12C$ 185

Sat 24/112:45 a.m.YEG - STL

1 stop29h 06mMultiple Airlines

Deal found 17/12C$ 192

Fri 30/17:00 a.m.YVR - STL

3 stops29h 46mMultiple Airlines

Deal found 16/12C$ 193

Sun 11/17:10 a.m.YYZ - STL

1 stop25h 55mMultiple Airlines

Deal found 17/12C$ 194

Thu 26/27:45 p.m.YVR - STL

2 stops33h 06mMultiple Airlines

Deal found 17/12C$ 203

Wed 14/18:15 a.m.YVR - STL

3 stops36h 19mMultiple Airlines

Deal found 16/12C$ 207

Wed 7/15:30 a.m.YVR - STL

3 stops39h 03mMultiple Airlines

Deal found 17/12C$ 214

Wed 7/11:21 p.m.YVR - STL

1 stop6h 14mDelta

Deal found 17/12C$ 218

Sat 31/17:10 a.m.YYZ - STL

1 stop17h 23mMultiple Airlines

Deal found 17/12C$ 223

Thu 9/410:15 a.m.YOW - STL

1 stop6h 09mAir Canada

Deal found 17/12C$ 247

Tue 14/410:35 a.m.YOW - STL

1 stop11h 28mUnited Airlines

Deal found 17/12C$ 252

Find flight deals from Canada to St. Louis

Round-trip from	C$ 299
One-way from	C$ 180
Popular in	September
Cheapest in	June
Average price	C$ 714
Good round-trip deal	C$ 476 or less
Good one-way deal	C$ 494 or less

31/1-7/2
3 total stops
48h 27m total
Canada to St. Louis

Search Deals

12/1
2 total stops
33h 06m total
Canada to St. Louis

Search Deals

High demand for flights, 2% potential price rise

Search Deals

Cheapest flight prices on average. 1% potential price decrease (C$ 15 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 Canada to Lambert-St Louis.

Search Deals

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

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Thu 15/1

5:15 p.m.-7:54 a.m.

1 stop15h 39m

Lambert-St Louis

Thu 22/1

5:42 p.m.-2:20 p.m.

1 stop19h 38m

C$ 331

VancouverSt. Louis

YVR - STL

YVRSTL

Vancouver Intl

Thu 8/1

3:40 p.m.-12:12 p.m.

1 stop18h 32m

Lambert-St Louis

Thu 26/2

10:11 p.m.-10:20 p.m.

1 stop26h 09m

C$ 331

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Thu 22/1

7:10 a.m.-11:33 p.m.

1 stop17h 23m

Lambert-St Louis

Mon 26/1

10:16 a.m.-12:11 a.m.

1 stop12h 55m

C$ 333

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Thu 8/1

8:00 p.m.-12:12 p.m.

1 stop17h 12m

Lambert-St Louis

Sun 11/1

12:37 p.m.-7:00 a.m.

2 stops17h 23m

C$ 347

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Wed 14/1

5:15 p.m.-10:34 p.m.

1 stop30h 19m

Lambert-St Louis

Wed 21/1

5:42 p.m.-12:11 a.m.

1 stop29h 29m

C$ 351

VancouverSt. Louis

YVR - STL

YVRSTL

Vancouver Intl

Thu 29/1

5:30 p.m.-8:48 p.m.

1 stop25h 18m

Lambert-St Louis

Mon 2/2

8:22 p.m.-4:48 p.m.

2 stops22h 26m

C$ 351

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Thu 22/1

4:20 p.m.-11:33 p.m.

1 stop8h 13m

Lambert-St Louis

Sun 25/1

5:42 p.m.-5:13 p.m.

1 stop22h 31m

C$ 378

HalifaxSt. Louis

YHZ - STL

YHZSTL

Halifax Intl

Tue 27/1

9:00 a.m.-3:29 p.m.

1 stop8h 29m

Lambert-St Louis

Mon 2/2

4:05 p.m.-12:06 a.m.

1 stop6h 01m

C$ 382

HalifaxSt. Louis

YHZ - STL

YHZSTL

Halifax Intl

Tue 27/1

3:15 p.m.-10:58 p.m.

2 stops9h 43m

Lambert-St Louis

Mon 2/2

6:40 p.m.-2:31 p.m.

2 stops17h 51m

C$ 390

VancouverSt. Louis

YVR - STL

YVRSTL

Vancouver Intl

Wed 7/1

3:45 p.m.-12:12 p.m.

2 stops18h 27m

Lambert-St Louis

Thu 26/2

10:11 p.m.-10:20 p.m.

1 stop26h 09m

C$ 390

Flights are sorted by cheapest round-trip flights first.

Deals found on 17/12

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, August is the cheapest month in which you can book a flight from Canada to St. Louis (average of C$ 270). Flying from Canada to St. Louis in September is currently the most expensive (average of C$ 474). 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 fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 15% versus a flight in the evening.

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

Travelers seeking maximum savings on their Canada to St. Louis flight should consider departing on Sunday afternoons when fares are most often at their lowest. Monday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Canada to St. Louis

The most flights from CA0 to STL are scheduled on a Monday (2 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (2 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

7.9

Good

8,008 reviews

Check prices

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

8,008 reviews

Delta

7.9

Good

8,008 reviews

Check prices

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

United Airlines

7.4

Good

9,093 reviews

Delta

7.9

Good

8,008 reviews

Check prices

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

American Airlines

7.2

Good

11,055 reviews

Delta

7.9

Good

8,008 reviews

Check prices

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

WestJet

7.2

Good

3,204 reviews

Delta

7.9

Good

8,008 reviews

Check prices

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

Air Canada

7.1

Good

10,534 reviews

Delta

7.9

Good

8,008 reviews

Check prices

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

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$ 382, Air Canada can have you in St. Louis from Canada in 8h 29m. Canada and St. Louis are separated by a distance of 2314 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 Air Canada, which is currently one of the cheapest options available, starting at C$ 263. United Airlines flights start at C$ 313 while deals on WestJet start at C$ 373 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: United Airlines (87%), Air Canada (77%), Jazz( 77%).
What are the cheapest flights from Canada to St. Louis?
On average you can expect to pay C$ 574 for a flight from Canada to St. Louis. The cheapest flight overall is C$ 439 while the most popular route, (Toronto Pearson Intl - Lambert-St Louis) is currently priced at C$ 304.
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, August is the cheapest month in which you can book a flight from Canada to St. Louis (average of C$ 270). Flying from Canada to St. Louis in September is currently the most expensive (average of C$ 474). 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.

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Top 5 airlines flying from Canada to St. Louis

Airline	Cheapest	Average	Flexibility	On-time
Air Canada	CheapestC$ 328	AverageC$ 696	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
American Airlines	CheapestC$ 372	AverageC$ 684	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights
United Airlines	CheapestC$ 413	AverageC$ 678	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
WestJet	CheapestC$ 461	AverageC$ 774	FlexibilityNo cancel fee	On-time60%	Search WestJet flights
Delta	CheapestC$ 473	AverageC$ 695	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights

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

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.

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

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.

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

Yes! Cheapflights helps users easily 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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Cheap flights from Canada to St. Louis from C$ 180

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 12/1. 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

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 18 December 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 18 December 2025.

Find 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 18 December 2025.

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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 18 December 2025.

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

Use this chart to determine the cheapest time to fly round-trip from Canada to St. Louis. Price data was last updated on 16 December 2024.

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 18 December 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

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Top 5 airlines flying from Canada to St. Louis

Fly with Cheapflights

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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 18 December 2025.