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

For as low as C$ 463, United Airlines can have you in St. Louis from Canada in 7h 30m. 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$ 893 for a flight from Canada to St. Louis. The cheapest flight overall is C$ 792 while the most popular route, (Toronto Pearson Intl - Lambert-St Louis) is currently priced at C$ 580.

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 (72%), Jazz (72%), United Airlines( 72%).

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$ 264+ 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 14 November 2026.

Wed 2/128:15 p.m. -

2 stops23h 42m

Wed 20/18:52 a.m. -

2 stops9h 27m

Deal found 11/11C$ 465

Tue 1/122:50 p.m. -

1 stop7h 09m

Tue 19/18:30 a.m. -

1 stop9h 49m

Deal found 14/11C$ 516

Tue 8/129:35 a.m. -

1 stop15h 37m

Tue 15/126:20 p.m. -

1 stop18h 20m

Deal found 12/11C$ 533

Mon 23/112:50 p.m. -

1 stop17h 05m

Thu 26/118:00 a.m. -

1 stop10h 19m

Deal found 12/11C$ 558

Wed 9/1210:40 a.m. -

2 stops49h 37m

Wed 16/126:20 p.m. -

1 stop18h 20m

Deal found 11/11C$ 560

Tue 15/121:25 a.m. -

1 stop9h 52m

Sat 19/125:46 p.m. -

2 stops29h 54m

Deal found 12/11C$ 586

Sun 13/121:25 a.m. -

1 stop9h 52m

Sat 19/125:46 p.m. -

2 stops29h 54m

Deal found 12/11C$ 589

Tue 8/127:00 a.m. -

1 stop5h 56m

Sat 12/124:30 p.m. -

1 stop6h 23m

Deal found 13/11C$ 590

Thu 10/121:36 p.m. -

1 stop6h 21m

Fri 11/128:17 a.m. -

1 stop10h 02m

Deal found 13/11C$ 599

Tue 15/121:25 a.m. -

1 stop9h 52m

Tue 22/125:37 p.m. -

2 stops28h 38m

Deal found 12/11C$ 646

Wed 2/128:00 a.m. -

1 stop13h 11m

Wed 9/126:20 p.m. -

1 stop21h 25m

Deal found 11/11C$ 647

Sun 13/128:45 a.m. -

1 stop26h 32m

Tue 22/125:37 p.m. -

2 stops28h 38m

Deal found 12/11C$ 649

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 14 November 2026.

Fri 22/12:50 p.m. -

1 stop7h 30m

Sun 24/18:30 a.m. -

1 stop9h 49m

Deal found 11/11C$ 463

Mon 11/17:15 a.m. -

2 stops10h 11m

Fri 15/14:05 p.m. -

1 stop7h 53m

Deal found 12/11C$ 590

Tue 1/122:32 p.m. -

1 stop7h 54m

Tue 19/16:10 a.m. -

2 stops10h 40m

Deal found 14/11C$ 653

Thu 17/128:10 a.m. -

2 stops15h 16m

Mon 21/126:30 a.m. -

2 stops15h 55m

Deal found 11/11C$ 777

Tue 8/129:20 p.m. -

2 stops13h 57m

Tue 15/126:20 p.m. -

2 stops30h 00m

Deal found 10/11C$ 814

Tue 1/122:50 p.m. -

1 stop7h 09m

Tue 19/14:30 p.m. -

2 stops25h 49m

Deal found 11/11C$ 465

Thu 3/1212:08 p.m. -

1 stop8h 50m

Fri 4/126:02 a.m. -

1 stop4h 26m

Deal found 9/11C$ 931

Mon 23/112:50 p.m. -

1 stop17h 05m

Thu 26/118:00 a.m. -

1 stop10h 19m

Deal found 12/11C$ 558

Thu 25/211:10 a.m. -

2 stops11h 14m

Mon 1/310:15 a.m. -

1 stop8h 40m

Deal found 12/11C$ 674

Thu 25/21:39 p.m. -

1 stop7h 44m

Mon 1/38:53 a.m. -

1 stop10h 44m

Deal found 12/11C$ 569

Tue 8/123:06 p.m. -

1 stop5h 51m

Sat 12/126:30 a.m. -

2 stops13h 29m

Deal found 13/11C$ 707

Tue 8/127:00 a.m. -

1 stop5h 56m

Sat 12/124:30 p.m. -

1 stop6h 23m

Deal found 13/11C$ 590

Mon 23/111:36 p.m. -

1 stop6h 23m

Thu 26/117:30 a.m. -

2 stops13h 20m

Deal found 12/11C$ 720

Fri 11/129:15 a.m. -

1 stop25h 45m

Sat 9/15:22 p.m. -

1 stop22h 38m

Deal found 12/11C$ 771

Mon 11/15:30 a.m. -

2 stops18h 18m

Fri 15/16:20 a.m. -

2 stops16h 20m

Deal found 13/11C$ 867

Thu 10/121:36 p.m. -

1 stop6h 21m

Fri 11/128:17 a.m. -

1 stop10h 02m

Deal found 13/11C$ 599

Thu 3/124:00 p.m. -

1 stop9h 12m

Mon 7/1212:02 p.m. -

2 stops22h 35m

Deal found 12/11C$ 883

Tue 8/127:45 a.m. -

1 stop9h 09m

Tue 15/127:00 a.m. -

1 stop10h 00m

Deal found 10/11C$ 793

Thu 3/127:43 a.m. -

1 stop15h 32m

Mon 7/124:05 p.m. -

Nonstop2h 00m

Deal found 12/11C$ 921

Mon 11/12:10 p.m. -

2 stops11h 10m

Fri 15/16:06 a.m. -

1 stop5h 18m

Deal found 11/11C$ 645

Sat 26/125:00 a.m. -

1 stop11h 26m

Sat 2/14:05 p.m. -

1 stop6h 11m

Deal found 10/11C$ 860

Fri 29/17:50 p.m. -

2 stops15h 22m

Tue 2/29:45 a.m. -

1 stop8h 14m

Deal found 10/11C$ 806

Thu 17/121:43 p.m. -

1 stop11h 03m

Mon 21/126:30 a.m. -

2 stops14h 00m

Deal found 11/11C$ 836

Mon 14/1210:00 a.m. -

2 stops12h 38m

Tue 5/15:59 p.m. -

1 stop14h 11m

Deal found 10/11C$ 841

Fri 29/14:45 p.m. -

1 stop20h 28m

Tue 2/28:05 a.m. -

1 stop9h 52m

Deal found 12/11C$ 780

Thu 7/17:50 a.m. -

1 stop10h 29m

Mon 11/11:37 p.m. -

1 stop8h 40m

Deal found 11/11C$ 856

Thu 17/127:00 a.m. -

1 stop14h 08m

Mon 21/128:48 a.m. -

1 stop14h 05m

Deal found 11/11C$ 810

Wed 2/129:40 a.m. -

1 stop11h 46m

Fri 4/125:20 p.m. -

2 stops14h 28m

Deal found 9/11C$ 863

Sat 16/112:45 p.m. -

2 stops11h 35m

Wed 20/15:00 a.m. -

2 stops10h 41m

Deal found 13/11C$ 817

Sat 12/126:00 a.m. -

2 stops17h 26m

Mon 11/15:27 p.m. -

2 stops31h 23m

Deal found 13/11C$ 878

Find flight deals from Canada to St. Louis

Round-trip from	C$ 463
One-way from	C$ 264
Popular in	March
Cheapest in	January
Average price	C$ 925
Good round-trip deal	C$ 825 or less

United Airlines
22/1-24/1
2 total stops
17h 19m total
Canada to St. Louis

Search Deals

United Airlines
22/1-31/12
2 total stops
20h 55m total
Canada to St. Louis

Search Deals

Highest demand for flights based on searches. 11% potential increase in price (C$ 144 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 6% potential price decrease (C$ 67 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in November 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

VancouverSt. Louis

YVR Vancouver Intl - STL Lambert-St Louis

YVRSTL

Vancouver Intl

Sat 12/12

7:00 a.m.-4:40 p.m.

1 stop8h 40m

Lambert-St Louis

Wed 31/12

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

Nonstop0h 00m

C$ 264

VancouverSt. Louis

YVR Vancouver Intl - STL Lambert-St Louis

YVRSTL

Vancouver Intl

Fri 22/1

2:50 p.m.-11:20 p.m.

1 stop7h 30m

Lambert-St Louis

Wed 31/12

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

Nonstop0h 00m

C$ 264

VancouverSt. Louis

YVR Vancouver Intl - STL Lambert-St Louis

YVRSTL

Vancouver Intl

Fri 11/12

8:00 a.m.-6:11 p.m.

1 stop9h 11m

Lambert-St Louis

Wed 31/12

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

Nonstop0h 00m

C$ 264

CalgarySt. Louis

YYC Calgary - STL Lambert-St Louis

YYCSTL

Calgary

Sat 1/5

7:45 a.m.-8:49 p.m.

2 stops12h 04m

Lambert-St Louis

Wed 31/12

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

Nonstop0h 00m

C$ 328

HalifaxSt. Louis

YHZ Halifax Intl - STL Lambert-St Louis

YHZSTL

Halifax Intl

Thu 26/11

7:15 a.m.-3:26 p.m.

2 stops10h 11m

Lambert-St Louis

Wed 31/12

12:00 a.m.-2:00 a.m.

Nonstop0h 00m

C$ 331

TorontoSt. Louis

YYZ Toronto Pearson Intl - STL Lambert-St Louis

YYZSTL

Toronto Pearson Intl

Wed 2/12

3:22 p.m.-12:02 a.m.

1 stop9h 40m

Lambert-St Louis

Wed 31/12

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

Nonstop0h 00m

C$ 346

HalifaxSt. Louis

YHZ Halifax Intl - STL Lambert-St Louis

YHZSTL

Halifax Intl

Tue 29/12

7:15 a.m.-3:26 p.m.

2 stops10h 11m

Lambert-St Louis

Wed 31/12

12:00 a.m.-2:00 a.m.

Nonstop0h 00m

C$ 375

TorontoSt. Louis

YYZ Toronto Pearson Intl - STL Lambert-St Louis

YYZSTL

Toronto Pearson Intl

Mon 1/3

6:30 a.m.-4:58 p.m.

2 stops35h 28m

Lambert-St Louis

Wed 31/12

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

Nonstop0h 00m

C$ 391

TorontoSt. Louis

YYZ Toronto Pearson Intl - STL Lambert-St Louis

YYZSTL

Toronto Pearson Intl

Wed 16/12

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

2 stops18h 12m

Lambert-St Louis

Wed 31/12

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

Nonstop0h 00m

C$ 398

TorontoSt. Louis

YYZ Toronto Pearson Intl - STL Lambert-St Louis

YYZSTL

Toronto Pearson Intl

Fri 4/12

7:09 a.m.-4:47 p.m.

1 stop10h 38m

Lambert-St Louis

Wed 31/12

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

Nonstop0h 00m

C$ 405

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/11

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.

YYZ-STL

YVR-STL

YYC-STL

YHZ-STL

YUL-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

YYZ-STL

YVR-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$ 600). Flying from Canada to St. Louis in November is currently the most expensive (average of C$ 858). 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 38% versus a flight in the morning.

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

Booking 65 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

8,718 reviews

Check prices

Reviews

1 / 20

6.0

Good

Ellen,Oct 2026

GRR - ATL

The flight was delayed more then 30 minutes after I hurried and stressed to get to my connecting gate in Atlanta.

Delta

7.8

Good

8,718 reviews

Delta

7.8

Good

8,718 reviews

Check prices

Reviews

1 / 20

6.0

Good

Ellen,Oct 2026

GRR - ATL

The flight was delayed more then 30 minutes after I hurried and stressed to get to my connecting gate in Atlanta.

United Airlines

7.3

Good

10,490 reviews

Delta

7.8

Good

8,718 reviews

Check prices

Reviews

1 / 20

6.0

Good

Ellen,Oct 2026

GRR - ATL

The flight was delayed more then 30 minutes after I hurried and stressed to get to my connecting gate in Atlanta.

WestJet

7.2

Good

3,436 reviews

Delta

7.8

Good

8,718 reviews

Check prices

Reviews

1 / 20

6.0

Good

Ellen,Oct 2026

GRR - ATL

The flight was delayed more then 30 minutes after I hurried and stressed to get to my connecting gate in Atlanta.

Air Canada

7.1

Good

11,897 reviews

Delta

7.8

Good

8,718 reviews

Check prices

Reviews

1 / 20

6.0

Good

Ellen,Oct 2026

GRR - ATL

The flight was delayed more then 30 minutes after I hurried and stressed to get to my connecting gate in Atlanta.

American Airlines

7.0

Good

12,234 reviews

Delta

7.8

Good

8,718 reviews

Check prices

Reviews

1 / 20

6.0

Good

Ellen,Oct 2026

GRR - ATL

The flight was delayed more then 30 minutes after I hurried and stressed to get to my connecting gate in Atlanta.

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$ 463, United Airlines can have you in St. Louis from Canada in 7h 30m. 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 (72%), Jazz (72%), United Airlines( 72%).
What are the cheapest flights from Canada to St. Louis?
On average you can expect to pay C$ 893 for a flight from Canada to St. Louis. The cheapest flight overall is C$ 792 while the most popular route, (Toronto Pearson Intl - Lambert-St Louis) is currently priced at C$ 580.
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$ 600). Flying from Canada to St. Louis in November is currently the most expensive (average of C$ 858). 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

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Alternative routes for Canada to St. Louis

Pearson Intl to St. Louis flights

Pierre Elliott Trudeau Intl to St. Louis flights

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Calgary to Kansas City flights

Pearson Intl to Kansas City flights

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Vancouver Intl to St. Louis flights

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Calgary to St. Louis flights

Pearson Intl to Columbia flights

Pearson Intl to Springfield flights

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Edmonton to St. Louis flights

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Halifax to Kansas City flights

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Pearson Intl to Quincy flights

Calgary to Columbia flights

Victoria to Kansas City flights

Buffalo to Kansas City flights

Comox to Kansas City flights

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Regina to Branson flights

Top 5 airlines flying from Canada to St. Louis

Airline	Cheapest	Average	Flexibility	On-time
Air Canada	CheapestC$ 193	AverageC$ 783	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
Delta	CheapestC$ 215	AverageC$ 498	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
American Airlines	CheapestC$ 254	AverageC$ 645	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights
United Airlines	CheapestC$ 364	AverageC$ 631	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
WestJet	CheapestC$ 435	AverageC$ 653	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.

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Cheap flights from Canada to St. Louis from C$ 264

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 12/12. 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 14 November 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 14 November 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 14 November 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 14 November 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 14 November 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 14 November 2026.

Last-minute flights from Canada to St. LouisDiscover last-minute flight deals from Canada to St. Louis. Data last updated 14 November 2026 and is based on user searches.

Discover last-minute flight deals from Canada to St. Louis. Data last updated 14 November 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 14 November 2026.

Search for one-way flight options from Canada to St. Louis. Find affordable one-way fares based on user searches. Data last updated 14 November 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 14 November 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 in the afternoon, which can drop the price by up to 38% versus a flight in the morning.

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

Booking 65 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?

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 Canada to St. Louis

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

Complete your trip

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Direct flights to Missouri

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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 14 November 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 14 November 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 14 November 2026.

Last-minute flights from Canada to St. Louis
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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 14 November 2026.