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

For as low as C$ 455, United Airlines can have you in St. Louis from Canada in 6h 48m. Canada and St. Louis are separated by a distance of 2840 km. This flight may include one or multiple stops.

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$ 888 for a flight from Canada to St. Louis. The cheapest flight overall is C$ 493 while the most popular route, (Toronto Pearson Intl - Lambert-St Louis) is currently priced at C$ 562.

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 (68%), Jazz (68%), United Airlines( 68%).

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$ 245+ Cheap Flights from Canada to St. Louis

Cheap flight deals from Canada to St. Louis

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

Last-minute

One-way

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 24 September 2026.

Tue 20/107:29 a.m. -

1 stop10h 24m

Tue 27/107:28 a.m. -

1 stop9h 16m

Deal found 19/9C$ 448

Sat 7/112:50 p.m. -

1 stop16h 05m

Wed 11/118:50 a.m. -

1 stop12h 14m

Deal found 23/9C$ 454

Thu 24/122:50 p.m. -

1 stop6h 48m

Tue 5/19:13 a.m. -

1 stop7h 41m

Deal found 22/9C$ 455

Wed 11/111:36 p.m. -

1 stop5h 23m

Sun 15/115:00 a.m. -

1 stop9h 45m

Deal found 21/9C$ 456

Wed 14/101:15 p.m. -

1 stop8h 42m

Sat 17/105:00 a.m. -

1 stop8h 33m

Deal found 21/9C$ 464

Thu 22/101:15 p.m. -

1 stop8h 42m

Mon 26/107:29 a.m. -

1 stop9h 15m

Deal found 20/9C$ 465

Sat 7/112:50 p.m. -

1 stop16h 05m

Sat 14/115:00 a.m. -

1 stop9h 45m

Deal found 23/9C$ 475

Wed 21/101:15 p.m. -

1 stop8h 42m

Wed 28/105:00 a.m. -

1 stop8h 33m

Deal found 22/9C$ 483

Thu 22/103:14 p.m. -

1 stop10h 05m

Fri 23/105:00 a.m. -

1 stop8h 33m

Deal found 21/9C$ 487

Wed 7/1012:10 p.m. -

1 stop8h 20m

Sat 10/101:36 p.m. -

1 stop6h 42m

Deal found 22/9C$ 493

Mon 5/1012:10 p.m. -

1 stop8h 20m

Thu 8/105:10 a.m. -

1 stop6h 41m

Deal found 20/9C$ 495

Fri 6/112:18 p.m. -

1 stop4h 51m

Fri 13/117:08 a.m. -

1 stop8h 04m

Deal found 22/9C$ 500

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 24 September 2026.

Thu 24/122:50 p.m. -

1 stop6h 48m

Tue 5/19:13 a.m. -

1 stop7h 41m

Deal found 22/9C$ 455

Fri 6/117:00 a.m. -

1 stop7h 43m

Thu 12/116:13 a.m. -

1 stop9h 07m

Deal found 20/9C$ 456

Thu 22/101:15 p.m. -

1 stop8h 42m

Mon 26/107:29 a.m. -

1 stop9h 15m

Deal found 19/9C$ 465

Tue 27/109:50 a.m. -

3 stops28h 33m

Mon 16/116:44 p.m. -

1 stop18h 21m

Deal found 19/9C$ 628

Tue 20/107:15 a.m. -

2 stops8h 45m

Wed 21/102:40 p.m. -

1 stop5h 14m

Deal found 22/9C$ 628

Mon 26/1012:25 a.m. -

1 stop9h 26m

Mon 16/112:31 p.m. -

1 stop22h 34m

Deal found 19/9C$ 696

Thu 14/11:35 p.m. -

1 stop5h 24m

Sun 24/18:30 a.m. -

1 stop15h 05m

Deal found 19/9C$ 456

Thu 8/101:20 p.m. -

1 stop9h 24m

Sun 11/102:22 p.m. -

1 stop10h 14m

Deal found 21/9C$ 502

Wed 11/111:36 p.m. -

1 stop5h 23m

Sun 15/115:00 a.m. -

1 stop9h 45m

Deal found 21/9C$ 456

Mon 19/101:51 p.m. -

1 stop9h 28m

Tue 27/105:27 p.m. -

1 stop20h 24m

Deal found 19/9C$ 514

Sun 18/101:47 p.m. -

1 stop8h 12m

Tue 20/104:42 p.m. -

1 stop22h 15m

Deal found 20/9C$ 1,047

Wed 7/1012:10 p.m. -

1 stop8h 20m

Sat 10/101:36 p.m. -

1 stop6h 42m

Deal found 22/9C$ 493

Mon 26/107:36 p.m. -

2 stops15h 56m

Fri 30/106:21 a.m. -

1 stop6h 29m

Deal found 21/9C$ 564

Thu 15/107:15 a.m. -

2 stops8h 45m

Mon 19/108:55 a.m. -

2 stops9h 34m

Deal found 19/9C$ 631

Tue 27/105:00 p.m. -

3 stops23h 40m

Sat 31/107:59 p.m. -

2 stops30h 31m

Deal found 22/9C$ 637

Wed 4/118:00 a.m. -

1 stop8h 05m

Wed 11/114:39 p.m. -

2 stops23h 04m

Deal found 20/9C$ 502

Wed 3/27:00 a.m. -

2 stops12h 33m

Wed 10/25:57 a.m. -

1 stop8h 49m

Deal found 23/9C$ 655

Wed 21/1012:10 p.m. -

1 stop8h 20m

Wed 28/106:00 a.m. -

1 stop7h 45m

Deal found 23/9C$ 516

Sun 13/121:37 p.m. -

1 stop4h 49m

Tue 22/124:05 p.m. -

1 stop9h 01m

Deal found 23/9C$ 690

Tue 20/109:20 a.m. -

2 stops10h 00m

Wed 21/1012:10 p.m. -

1 stop10h 17m

Deal found 19/9C$ 700

Fri 9/1012:10 p.m. -

1 stop8h 20m

Mon 12/105:10 a.m. -

1 stop6h 41m

Deal found 23/9C$ 558

Thu 5/112:00 p.m. -

2 stops21h 08m

Thu 12/1111:35 a.m. -

2 stops24h 16m

Deal found 21/9C$ 747

Sun 18/106:05 a.m. -

2 stops16h 39m

Tue 20/1012:28 p.m. -

2 stops13h 02m

Deal found 20/9C$ 807

Wed 14/108:50 a.m. -

1 stop7h 31m

Sat 17/102:40 p.m. -

Nonstop1h 54m

Deal found 21/9C$ 824

Fri 30/102:25 p.m. -

1 stop21h 26m

Mon 2/118:15 p.m. -

2 stops15h 36m

Deal found 24/9C$ 768

Fri 16/102:50 p.m. -

1 stop4h 51m

Mon 26/104:05 p.m. -

1 stop6h 50m

Deal found 20/9C$ 851

Tue 20/102:50 p.m. -

1 stop8h 19m

Wed 21/107:30 a.m. -

1 stop14h 25m

Deal found 22/9C$ 613

Sat 7/118:00 a.m. -

3 stops29h 33m

Mon 9/116:44 p.m. -

3 stops26h 36m

Deal found 22/9C$ 833

Fri 30/107:50 p.m. -

1 stop16h 57m

Sun 1/112:25 p.m. -

1 stop8h 29m

Deal found 24/9C$ 858

Thu 15/107:00 a.m. -

1 stop16h 09m

Mon 19/107:30 a.m. -

1 stop14h 25m

Deal found 19/9C$ 616

Find flight deals from Canada to St. Louis

Round-trip from	C$ 448
One-way from	C$ 245
Popular in	March
Cheapest in	January
Average price	C$ 888
Good round-trip deal	C$ 790 or less

American Airlines
20/10-27/10
2 total stops
19h 40m total
Canada to St. Louis

Search Deals

13/10-31/12
2 total stops
21h 10m total
Canada to St. Louis

Search Deals

Highest demand for flights based on searches. 15% potential increase in price (C$ 191 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 7% potential price decrease (C$ 71 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

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

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

KelownaSt. Louis

YLW Kelowna - STL Lambert-St Louis

YLWSTL

Kelowna

Tue 13/10

6:30 p.m.-5:40 p.m.

2 stops21h 10m

Lambert-St Louis

Wed 31/12

12:00 a.m.-10:00 p.m.

Nonstop0h 00m

C$ 245

TorontoSt. Louis

YYZ Toronto Pearson Intl - STL Lambert-St Louis

YYZSTL

Toronto Pearson Intl

Tue 3/11

12:20 p.m.-5:40 p.m.

2 stops30h 20m

Lambert-St Louis

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 251

VancouverSt. Louis

YVR Vancouver Intl - STL Lambert-St Louis

YVRSTL

Vancouver Intl

Sat 7/11

7:00 a.m.-3:38 p.m.

1 stop7h 38m

Lambert-St Louis

Wed 31/12

12:00 a.m.-10:00 p.m.

Nonstop0h 00m

C$ 259

VancouverSt. Louis

YVR Vancouver Intl - STL Lambert-St Louis

YVRSTL

Vancouver Intl

Sat 10/10

12:10 p.m.-10:30 p.m.

1 stop8h 20m

Lambert-St Louis

Wed 31/12

12:00 a.m.-10:00 p.m.

Nonstop0h 00m

C$ 271

VancouverSt. Louis

YVR Vancouver Intl - STL Lambert-St Louis

YVRSTL

Vancouver Intl

Mon 12/10

12:10 p.m.-10:30 p.m.

1 stop8h 20m

Lambert-St Louis

Wed 31/12

12:00 a.m.-10:00 p.m.

Nonstop0h 00m

C$ 271

TorontoSt. Louis

YYZ Toronto Pearson Intl - STL Lambert-St Louis

YYZSTL

Toronto Pearson Intl

Tue 3/11

11:36 a.m.-7:22 p.m.

1 stop8h 46m

Lambert-St Louis

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 273

VancouverSt. Louis

YVR Vancouver Intl - STL Lambert-St Louis

YVRSTL

Vancouver Intl

Sat 17/10

12:10 p.m.-10:30 p.m.

1 stop8h 20m

Lambert-St Louis

Wed 31/12

12:00 a.m.-10:00 p.m.

Nonstop0h 00m

C$ 275

EdmontonSt. Louis

YEG Edmonton - STL Lambert-St Louis

YEGSTL

Edmonton

Tue 27/10

4:30 p.m.-3:23 p.m.

2 stops21h 53m

Lambert-St Louis

Wed 31/12

12:00 a.m.-11:00 p.m.

Nonstop0h 00m

C$ 283

VancouverSt. Louis

YVR Vancouver Intl - STL Lambert-St Louis

YVRSTL

Vancouver Intl

Sat 10/10

8:25 a.m.-8:20 p.m.

2 stops9h 55m

Lambert-St Louis

Wed 31/12

12:00 a.m.-10:00 p.m.

Nonstop0h 00m

C$ 289

TorontoSt. Louis

YYZ Toronto Pearson Intl - STL Lambert-St Louis

YYZSTL

Toronto Pearson Intl

Mon 2/11

1:00 p.m.-1:21 p.m.

2 stops25h 21m

Lambert-St Louis

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 289

Flights are sorted by cheapest round-trip flights first.

Deals found on 22/9

Showing 1-10 of 60 resultsSorted by cheapest first

...

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.

YVR-STL

YYZ-STL

YYC-STL

YHZ-STL

YLW-STL

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

CA0-STL

YVR-STL

YYZ-STL

YYC-STL

YHZ-STL

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$ 592). Flying from Canada to St. Louis in December is currently the most expensive (average of C$ 876). 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 at noon, which can drop the price by up to 40% versus a flight in the morning.

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).

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

Booking 46 days in advance of your planned departure date is, on average, the best time to get cheap flights from Canada to St. Louis. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Reviews of airlines servicing St. Louis

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

Delta

7.8

Good

8,593 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Jennifer,Sep 2026

ORD - LGA

The flight crew was 30 minutes late to an am flight and then that caused a delay

Delta

7.8

Good

8,593 reviews

Delta

7.8

Good

8,593 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Jennifer,Sep 2026

ORD - LGA

The flight crew was 30 minutes late to an am flight and then that caused a delay

United Airlines

7.4

Good

10,233 reviews

Delta

7.8

Good

8,593 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Jennifer,Sep 2026

ORD - LGA

The flight crew was 30 minutes late to an am flight and then that caused a delay

WestJet

7.2

Good

3,448 reviews

Delta

7.8

Good

8,593 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Jennifer,Sep 2026

ORD - LGA

The flight crew was 30 minutes late to an am flight and then that caused a delay

Air Canada

7.1

Good

11,676 reviews

Delta

7.8

Good

8,593 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Jennifer,Sep 2026

ORD - LGA

The flight crew was 30 minutes late to an am flight and then that caused a delay

American Airlines

7.0

Good

12,073 reviews

Delta

7.8

Good

8,593 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Jennifer,Sep 2026

ORD - LGA

The flight crew was 30 minutes late to an am flight and then that caused a delay

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$ 455, United Airlines can have you in St. Louis from Canada in 6h 48m. Canada and St. Louis are separated by a distance of 2840 km. This flight may include one or multiple stops.
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 (68%), Jazz (68%), United Airlines( 68%).
What are the cheapest flights from Canada to St. Louis?
On average you can expect to pay C$ 888 for a flight from Canada to St. Louis. The cheapest flight overall is C$ 493 while the most popular route, (Toronto Pearson Intl - Lambert-St Louis) is currently priced at C$ 562.
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$ 592). Flying from Canada to St. Louis in December is currently the most expensive (average of C$ 876). 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

Browse thousands of different options on Cheapflights for your next trip

Alternative routes

Complete your trip

Direct flights to Missouri

Flights by cabin class

Other flight options

Popular flights

Alternative routes for Canada to St. Louis

Pearson Intl to St. Louis flights

Pierre Elliott Trudeau Intl to St. Louis flights

Pearson Intl to Kansas City flights

Vancouver Intl to Kansas City flights

Buffalo to Kansas City flights

Vancouver Intl to Springfield flights

Vancouver Intl to St. Louis flights

Calgary to Kansas City flights

Abbotsford to Kansas City flights

Winnipeg to Kansas City flights

Pearson Intl to Springfield flights

Pierre Elliott Trudeau Intl to Kansas City flights

Ottawa to St. Louis flights

Ottawa to Kansas City flights

Edmonton to St. Louis flights

Saskatoon to Kansas City flights

Calgary to St. Louis flights

Halifax to Kansas City flights

Comox to Kansas City flights

Edmonton to Kansas City flights

Saskatoon to St. Louis flights

Victoria to Kansas City flights

Edmonton to Columbia flights

Victoria to St. Louis flights

Calgary to Columbia flights

Halifax to St. Louis flights

Charlottetown to St. Louis flights

Québec City to St. Louis flights

Buffalo to St. Louis flights

Pearson Intl to Quincy flights

Regina to Branson flights

Pearson Intl to Columbia flights

Top 5 airlines flying from Canada to St. Louis

Airline	Cheapest	Average	Flexibility	On-time
Air Canada	CheapestC$ 190	AverageC$ 701	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
Delta	CheapestC$ 213	AverageC$ 463	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
American Airlines	CheapestC$ 251	AverageC$ 637	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights
United Airlines	CheapestC$ 345	AverageC$ 628	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
WestJet	CheapestC$ 429	AverageC$ 645	FlexibilityNo cancel fee	On-time60%	Search WestJet flights

Fly with Cheapflights

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?

Of course! You can now track prices for flights from Canada to St. Louis and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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Cheap flights from Canada to St. Louis from C$ 245

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 13/10. 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

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 24 September 2026.

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 24 September 2026.

Best flights from Canada to St. LouisDiscover 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 24 September 2026.

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 24 September 2026.

Direct flights from Canada to St. LouisExplore 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 24 September 2026.

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 24 September 2026.

Last-minute flights from Canada to St. LouisDiscover last-minute flight deals from Canada to St. Louis. Data last updated 24 September 2026 and is based on user searches.

Discover last-minute flight deals from Canada to St. Louis. Data last updated 24 September 2026 and is based on user searches.

One-way flights from Canada to St. LouisSearch for one-way flight options from Canada to St. Louis. Find affordable one-way fares based on user searches. Data last updated 24 September 2026.

Search for one-way flight options from Canada to St. Louis. Find affordable one-way fares based on user searches. Data last updated 24 September 2026.

Find flight deals from Canada to St. Louis

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Cheapflights Fare Finder

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

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 24 September 2026.

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 at noon, which can drop the price by up to 40% versus a flight in the morning.

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 24 September 2026.

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).

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

Booking 46 days in advance of your planned departure date is, on average, the best time to get cheap flights from Canada to St. Louis. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Reviews of airlines servicing St. Louis

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

Related info for your journey

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 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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Canada and St. Louis flights

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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 24 September 2026.

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 24 September 2026.

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 24 September 2026.

Last-minute flights from Canada to St. Louis
Discover last-minute flight deals from Canada to St. Louis. Data last updated 24 September 2026 and is based on user searches.

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 24 September 2026.