C$ 116 Find Cheap Flights from St. Louis to Canada

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Canada departing on 18/1. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Flight Deals

Best Canada Flight Deals from St. Louis

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Calgary
Calgary1 stopC$ 370
Halifax
Halifax1 stopC$ 457
Kelowna
Kelowna2 stopsC$ 541
Saskatoon
Saskatoon1 stopC$ 676
Québec City
Québec City2 stopsC$ 624
Charlottetown
Charlottetown2 stopsC$ 1,257
Calgary
Calgary1 stopC$ 370
Halifax
Halifax1 stopC$ 457
Kelowna
Kelowna2 stopsC$ 541
Saskatoon
Saskatoon1 stopC$ 676
Québec City
Québec City2 stopsC$ 624
Charlottetown
Charlottetown2 stopsC$ 1,257

Cheap Flights from St. Louis to Canada

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Canada that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from St. Louis to Canada

Sun, 11 Jan - Fri, 16 Jan
Multiple Airlines Logo
12:37 p.m. - 6:20 a.m.
STL
-
YYZ
16h 43m1 stop
Multiple Airlines Logo
7:10 a.m. - 10:34 p.m.
YYZ
-
STL
16h 24m1 stop
C$ 337Multiple Airlines
Sun, 11 Jan - Fri, 16 Jan
Multiple Airlines Logo
9:46 p.m. - 11:39 p.m.
STL
-
YYZ
24h 53m2 stops
Multiple Airlines Logo
7:10 a.m. - 10:34 p.m.
YYZ
-
STL
16h 24m1 stop
C$ 340Multiple Airlines
Wed, 14 Jan - Wed, 21 Jan
Alaska Airlines Logo
2:50 p.m. - 8:55 p.m.
STL
-
YVR
8h 05m1 stop
Alaska Airlines Logo
6:00 a.m. - 1:54 p.m.
YVR
-
STL
5h 54m1 stop
C$ 452Alaska Airlines
Sat, 7 Feb - Sat, 14 Feb
Delta Logo
3:31 p.m. - 11:59 p.m.
STL
-
YVR
10h 28m2 stops
Delta Logo
7:25 a.m. - 11:23 p.m.
YVR
-
STL
13h 58m2 stops
C$ 454Delta
Sat, 17 Jan - Wed, 21 Jan
Air Canada Logo
4:05 p.m. - 12:41 a.m.
STL
-
YHZ
6h 36m1 stop
Air Canada Logo
9:00 a.m. - 3:29 p.m.
YHZ
-
STL
8h 29m1 stop
C$ 457Air Canada
Sat, 17 Jan - Wed, 21 Jan
Air Canada Logo
4:05 p.m. - 12:41 a.m.
STL
-
YHZ
6h 36m1 stop
Air Canada Logo
6:55 a.m. - 3:29 p.m.
YHZ
-
STL
10h 34m2 stops
C$ 468Air Canada
Wed, 28 Jan - Wed, 4 Feb
American Airlines Logo
6:44 p.m. - 12:48 p.m.
STL
-
YYC
19h 04m1 stop
American Airlines Logo
1:40 p.m. - 1:03 p.m.
YYC
-
STL
22h 23m1 stop
C$ 478American Airlines
Mon, 2 Feb - Wed, 4 Feb
American Airlines Logo
6:44 p.m. - 3:08 p.m.
STL
-
YUL
19h 24m1 stop
American Airlines Logo
3:50 p.m. - 10:20 a.m.
YUL
-
STL
19h 30m1 stop
C$ 487American Airlines
Wed, 28 Jan - Wed, 4 Feb
Alaska Airlines Logo
2:50 p.m. - 9:14 p.m.
STL
-
YLW
8h 24m1 stop
Alaska Airlines Logo
8:00 a.m. - 1:54 p.m.
YLW
-
STL
27h 54m1 stop
C$ 551Alaska Airlines
Wed, 25 Feb - Wed, 4 Mar
Delta Logo
5:29 p.m. - 2:37 p.m.
STL
-
YXE
21h 08m1 stop
Delta Logo
6:15 a.m. - 11:23 p.m.
YXE
-
STL
17h 08m2 stops
C$ 676Delta
Booking Insights

KAYAK's insights & trends for St. Louis to Canada flights

Get data-powered insights and trends into flights from St. Louis to Canada to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest St. Louis to Canada flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Canada from St. Louis found in the last 72 hours was to Toronto, at C$ 231 round-trip. The most popular route is from St. Louis (STL) to Toronto Pearson Intl Airport (YYZ), and the cheapest round-trip airline ticket found on this route in the last 72 hours was C$ 231.

Can I save money by flying with a layover from St. Louis to Canada?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of C$ 516, prices are generally cheapest when you fly direct.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to Canada, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from St. Louis to Canada is April, when tickets cost C$ 432 (return) on average. On the other hand, the most expensive months are November and March, when the average cost of round-trip tickets is C$ 931 and C$ 803 respectively.

What’s the cheapest day of the week to fly from St. Louis to Canada?

The average price of all round-trip flights from St. Louis to Canada clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Canada on a Friday and more expensive on a Wednesday. On your return trip to St. Louis, you should consider flying back on a Thursday, and avoid Mondays for better deals.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from St. Louis to Canada, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below-average price on a flight from St. Louis to Canada, you should book around 3 weeks before departure, which saves you about 64% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 23 weeks before departure.

Find deals

Good to know

Low seasonNovember
Cheapest flightC$ 116
Best time to beat the crowds (6% less expensive on average)
Most popular time to fly and prices are also 3% lower on average.
Flight from St. Louis to Toronto

FAQs - booking Canada flights

  • How does KAYAK find such low prices on flights from St. Louis to Canada?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to Canada.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Canada?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from St. Louis to Canada is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from St. Louis to Canada?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from St. Louis to Canada with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Canada?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from St. Louis to Canada up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Canada?

    The cheapest time of day to fly to Canada is generally in the afternoon, when round-trip flights cost C$ 590 on average. Morning departures are around 19% more expensive than evening flights, on average. The most expensive time of day to fly to Canada is generally in the morning, which is peak travel time and where the average cost of a ticket is C$ 764.

Reviews of the top airline flying from St. Louis to Canada

 
Need help choosing which airline to fly with from St. Louis to Canada? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.1
Air CanadaOverall score based on 10527 reviews
7.3Boarding
6.3Food
7.1Comfort
6.8Entertainment
7.8Crew
Airline reviews

It was just fine. I managed to make all my connection too sbut had trouble in Munich with no wheel chair and trouble trying to get help from the airport people to get to the other terminal for my flight. Finally a wonderful lady Amelia, helped me to make my flight connection Timon with zero time to spare.

8.0 ExcellentAnonymous, Nov 2025
AUS - YYZ
Read more Air Canada reviews

It was just fine. I managed to make all my connection too sbut had trouble in Munich with no wheel chair and trouble trying to get help from the airport people to get to the other terminal for my flight. Finally a wonderful lady Amelia, helped me to make my flight connection Timon with zero time to spare.

Over 40 years ago my AC return flight was canceled, during this last summer the same thing happened. AC denied everything Canadian like paying for accommodations and basic necessities. So why would I ever want to fly AC again? This last flight my wife took the return flight had problems and left late, so I guess they are getting better. However I have no faith in this airline so I drove to this last destination! I'll never fly AC again!!!

Great check in process in LA and good service The check in process as well as at the gate is way better in the US versus canada 🇨🇦

Super experience. Earlier than schedule departure and arrival. Baggage handling was very good

Allow me to book extra bag check in as free though I packed in 1 luggage but that was 7 LBS overweight so make another bag to free check in.

I would like to get my money back. I flight was 4 hours late on the way to detroit, And same on my way back to Brussels they cancelled my flight and give me an other ticket and i had to wait 5 hours.

All attendents were very efficient, pleasant and happy. Everything went smoothly. The seats could have been wider. There could have been more free food instead of just one small bar.

My seat was one of those that couldn't recline, but the problem was that it was abnormally upright, so the headrest actually made the seat concave, which was uncomfortable and hard on my lower back. I had to ball my jacket up and use it as lumbar support. goodness I had it with me.

Boarding was so so after zone 3 was called all other zones went in

I liked a lot , the flight attendant so nice ,the seat very comfortable I enjoyed the flight , I will do it again with Air Canada,

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

Information on your arrival and departure airports

St. Louis (STL)