Cheap flights from Canada to St Louis

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Boston (BOS)
St. Louis (STL)
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How to find the cheapest flight from
Canada to St Louis (STL)

All the information you need to plan the best null to STL flight in 2021: compare Canada to St Louis flight prices with the expected peak season, weather and rainfall in St Louis.
How far in advance should I book a flight from Canada to St Louis?

To save on the cost of your flight from Canada to St Louis, book at least 39 days before your planned departure. Booking around this time can save you about 26% on the cost of this flight compared to booking a flight leaving this week. We have found prices from C$ 569 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as C$ 679.

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

The best pricing can be found in the month of February. Prices to St Louis from Canada average C$ 535. You can even find prices in February for less than C$ 535, as users have found deals to St Louis from as low as C$ 215. The month of June 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 29%.

Cheap flights from Canada to St Louis in April, May 2021

The best prices found for Canada to STL flights for April, May
21 May - 8 Jun
C$ 367pp
YYZ
Toronto Pearson Intl
American Airlines
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
American Airlines
 
1 STOP
YYZ
Toronto Pearson Intl
22 May - 24 May
C$ 372pp
YUL
Montreal Pierre Elliott Trudeau Intl
American Airlines
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
American Airlines
 
1 STOP
YUL
Montreal Pierre Elliott Trudeau Intl
22 May - 24 May
C$ 373pp
YUL
Montreal Pierre Elliott Trudeau Intl
Delta
   
2 STOPS
STL
Lambert-St Louis
STL
Lambert-St Louis
Delta
 
1 STOP
YUL
Montreal Pierre Elliott Trudeau Intl

Canada to St Louis 2021 flight deals

Cheap flights to St Louis from Canada found for this year
13 Jul - 14 Jul
C$ 365pp
YOW
Ottawa
United Airlines
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
United Airlines
 
1 STOP
YOW
Ottawa
21 May - 8 Jun
C$ 367pp
YYZ
Toronto Pearson Intl
American Airlines
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
American Airlines
 
1 STOP
YYZ
Toronto Pearson Intl
4 Aug - 31 Aug
C$ 369pp
YYZ
Toronto Pearson Intl
Delta
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
Delta
 
1 STOP
YYZ
Toronto Pearson Intl

Direct flights to St Louis from Canada

Save time with Canada to St Louis direct flight deals
21 Sep - 26 Sep
C$ 463pp
YYZ
Toronto Pearson Intl
Air Canada
Direct
STL
Lambert-St Louis
STL
Lambert-St Louis
Air Canada
Direct
YYZ
Toronto Pearson Intl

Last minute flights from Canada to St Louis

Late deals on round-trip flights to St Louis from Canada, departing today and this week
26 Apr - 14 May
C$ 465pp
YYZ
Toronto Pearson Intl
American Airlines
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
American Airlines
 
1 STOP
YYZ
Toronto Pearson Intl
26 Apr - 14 May
C$ 708pp
YYZ
Toronto Pearson Intl
Multiple Airlines
   
2 STOPS
STL
Lambert-St Louis
STL
Lambert-St Louis
American Airlines
 
1 STOP
YYZ
Toronto Pearson Intl
26 Apr - 14 May
C$ 747pp
YYZ
Toronto Pearson Intl
United Airlines
   
2 STOPS
STL
Lambert-St Louis
STL
Lambert-St Louis
United Airlines
 
1 STOP
YYZ
Toronto Pearson Intl

One-way flights to St Louis from St Louis

The cheapest one-way flights from Canada to St Louis
3:33 a.m. - 1:19 p.m.
Delta
2 stops
7h 46m
YVR - STL
Delta
C$ 328
Delta
3:20 a.m. - 11:15 a.m.
American Airlines
3 stops
29h 55m
YVR - STL
American Airlines
C$ 699
12:00 p.m. - 3:27 p.m.
Air Canada
2 stops
28h 27m
YQB - STL
Air Canada
C$ 726

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Canada</span> to <span class="emphasized">St Louis</span> flights.

Flight FAQs

From Canada to St Louis

Can I find flights from Canada to St Louis for under C$ 375 on Cheapflights?

Yes, there are multiple flights from Canada to St Louis for under C$ 375. The cheapest flight booked recently is on United Airlines for just C$ 365, but on average you can expect to pay C$ 397.

What safety measures are being taken by airlines flying from Canada to Lambert-St Louis to control the spread of COVID-19?

Airlines globally have implemented additional safety measures to accommodate you. Alaska Airlines and Delta are some airlines that have done so. Some of the new policies that have been implemented to accommodate travellers flying from Canada to Lambert-St Louis are improved sanitation, HEPA filters, mask requirements, socially-distanced seating (for a limited time), and pre-flight testing for antibodies and symptoms. Policies will vary by airline.

Which airlines flying from Canada to Lambert-St Louis have flexible cancellations due to COVID-19?

Some of the carriers operating flights from Canada to Lambert-St Louis that may be offering flexible cancellation policies are American Airlines, Air Canada, and United Airlines. Our site will let you filter for all airlines offering greater flexibility due to COVID-19.

Are there direct flights from Canada to St Louis for under C$ 500 on Cheapflights?

Cheapflights has 1 direct flight from Canada to St Louis under C$ 500. A good price for a direct flight from Canada to St Louis is less than C$ 463.

Are there last-minute flights available from Canada to St Louis for under C$ 500?

There are currently 4+ open flights from Canada to St Louis within the next 7 days for less than C$ 500.

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: Major Airline, American Airlines or Air Canada.

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

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

What are the cheapest flights from Canada to St Louis?

The cheapest flight price from Canada to St Louis is C$ 260. On average you can expect to pay C$ 512. The most popular route, (Vancouver Intl - Lambert-St Louis), can usually be booked for C$ 476.

How long is the flight from Canada to St Louis?

Airlines like Air Canada, United Airlines, and Delta fly from Canada to St Louis in about 2h 07m. The time it takes to get you to your destination can typically vary by up to 3h. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

What are the cheapest airlines to flying from Canada to St Louis round-trip?

United Airlines, at C$ 366, was found to be the cheapest airline from Canada to St Louis.Alternate airlines to your destination round-trip include American Airlines and Delta.

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

The cheapest airline one-way is American Airlines, with whom users have recently found tickets for as low as C$ 216. However, be on the lookout for offers from Delta and Air Canada, as they are both options that can get you from Canada to St Louis for a low price.

Departure points for flights from Canada to St Louis

Select to see more specific information for flights to St Louis from all departure points in Canada.

Destination information for St Louis

Things to know before you go - useful duration and weather info for your trip from Canada to St Louis.
Today's exchange rate
C$ 1 = $0.80
Flight duration
2h 04m
Average temperature for April in St Louis
21.0 °C
Avg rainfall for April in St Louis
104.0 mm

Airports servicing St. Louis

Top 6 airlines flying from Canada to St Louis

The chart below displays the airlines Cheapflights users travelling from Canada to St Louis choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Airline Cheapest Average Flexibility On-time COVID-19 safety
WestJet
C$ 156 C$ 328 No cancel fee 60%
Search WestJet flights
Delta
C$ 135 C$ 388 No cancel fee N/A
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American Airlines
C$ 190 C$ 393 No cancel fee 71%
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Air Canada
C$ 144 C$ 406 No cancel fee 67%
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Alaska Airlines
C$ 160 C$ 430 No cancel fee 75%
Search Alaska Airlines flights
United Airlines
C$ 181 C$ 498 No cancel fee 69%
Search United Airlines flights
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