$141 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 9/25. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Canada

Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 20% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flights Deals
Useful Info
Flights 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 stop$283
Halifax
Halifax2 stops$509
Ottawa
Ottawa1 stop$415
Québec City
Québec City1 stop$594
Winnipeg
Winnipeg2 stops$497
Kelowna
Kelowna3 stops$492
St. John's
St. John's3 stops$708
Saskatoon
Saskatoon2 stops$457
Calgary
Calgary1 stop$283
Halifax
Halifax2 stops$509
Ottawa
Ottawa1 stop$415
Québec City
Québec City1 stop$594
Winnipeg
Winnipeg2 stops$497
Kelowna
Kelowna3 stops$492
St. John's
St. John's3 stops$708
Saskatoon
Saskatoon2 stops$457

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

Thu, Sep 4 - Sat, Sep 13
 Logo
8:44 am - 6:24 pmSTL-YYC
10h 40m1 stop
 Logo
9:15 am - 7:49 amYYC-STL
21h 34m1 stop
Thu, Sep 4 - Sat, Sep 13
 Logo
8:44 am - 6:24 pmSTL-YYC
10h 40m1 stop
 Logo
9:15 am - 7:49 amYYC-STL
21h 34m1 stop
Mon, Sep 15 - Wed, Sep 17
American Airlines Logo
5:55 am - 5:49 pmSTL-YYZ
10h 54m1 stop
American Airlines Logo
11:44 am - 9:53 pmYYZ-STL
11h 09m1 stop
$337American Airlines
Find Deal
Thu, Sep 18 - Tue, Sep 23
American Airlines Logo
5:55 am - 4:30 pmSTL-YUL
9h 35m1 stop
American Airlines Logo
5:15 pm - 9:26 amYUL-STL
17h 11m1 stop
$340American Airlines
Find Deal
Sun, Jun 22 - Thu, Jun 26
Air Canada Logo
7:30 am - 10:25 amSTL-YYZ
1h 55mnonstop
Air Canada Logo
11:30 am - 12:36 pmYYZ-STL
2h 06mnonstop
$372Air Canada
Find Deal
Thu, Sep 25 - Sun, Sep 28
United Airlines Logo
12:25 pm - 9:02 pmSTL-YYZ
7h 37m1 stop
United Airlines Logo
2:10 pm - 2:27 pmYYZ-STL
25h 17m1 stop
$394United Airlines
Find Deal
Sun, Jun 22 - Thu, Jun 26
Air Canada Logo
1:30 pm - 11:19 pmSTL-YYZ
8h 49m1 stop
Air Canada Logo
11:30 am - 12:36 pmYYZ-STL
2h 06mnonstop
$411Air Canada
Find Deal
Tue, Aug 12 - Tue, Aug 19
United Airlines Logo
11:25 am - 10:53 pmSTL-YYC
12h 28m1 stop
United Airlines Logo
5:05 pm - 3:44 pmYYC-STL
21h 39m2 stops
$428United Airlines
Find Deal
Mon, Jul 14 - Sun, Jul 20
WestJet Logo
6:04 pm - 10:35 amSTL-YVR
18h 31m1 stop
WestJet Logo
8:30 pm - 9:41 amYVR-STL
11h 11m2 stops
$456WestJet
Find Deal
Fri, Jul 25 - Sat, Aug 2
WestJet Logo
10:46 am - 8:52 pmSTL-YVR
12h 06m1 stop
WestJet Logo
8:00 am - 11:53 pmYVR-STL
13h 53m2 stops
$467WestJet
Find Deal
Useful Info

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?

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for round-trip flights from St. Louis to Canada.

The cheapest ticket to Canada from St. Louis found in the last 72 hours was to Toronto, at $279 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 $279.

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 $853, 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 January, when tickets cost $312 (return) on average. On the other hand, the most expensive months are March and October, when the average cost of round-trip tickets is $583 and $532 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.

When flying from St. Louis to Canada, you should consider leaving on a Thursday and avoid Fridays if you are looking for the best rates. For your return to St. Louis, you’ll find the best rates on Saturdays and the most expensive ones on Sundays.

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 the flight from St. Louis to Canada, you should book around 5 weeks before departure. For the absolute cheapest price, our data suggests you should book 23 weeks before departure.


Good to know

Low seasonFebruary
High seasonJuly
Cheapest flight$141
Best time to beat the crowds but there is an average 16% increase in price.
Most popular time to fly and prices are also 0% 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 travelers 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 evening, when round-trip flights cost $938 on average. Morning departures are around 4% more expensive than evening flights, on average. The most expensive time of day to fly to Canada is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $1,174.

Top tips for finding cheap flights to Canada

  • Looking for a cheap flight? 25% of our users found tickets from St. Louis to the following destinations at these prices or less: Montreal $488 one-way - $848 round-trip; Toronto $177 one-way - $692 round-trip

Top 5 airlines serving 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.
8.0
DeltaOverall score based on 7950 reviews
7.3Food
8.2Boarding
7.9Entertainment
7.9Comfort
8.5Crew
Airline reviews

Great service. Flight was delayed while we sat on the runway for a couple of hours. Weather related. Staff made is very bearable. The steward servicing the first class cabin was exceptional. Thank you! 💗

10.0 ExcellentHartaj, Jun 2025EWR - RDU
Read more Delta reviews

Great service. Flight was delayed while we sat on the runway for a couple of hours. Weather related. Staff made is very bearable. The steward servicing the first class cabin was exceptional. Thank you! 💗

5 hours of delay that could've been much shorter if Delta had taken the 1 hour delay they imposed on the flight before boarding to run any of the plane checks required for flight to find the hydraulic issue that required nearly 3 hours to fix. $24 of meal credit buys a sandwich and a soft drink. Poor communication within the terminal about what gate we'd be re-boarding from and when we'd be re-boarding.

Great flight! Only complaint I had was that I didn’t get breakfast that morning because I don’t eat eggs for breakfast.. I ate an energy bar I bought in the airport which I had never done before. Otherwise, another great Delta flight!

Amazing flight! I have never noticed the uniforms of the attendants before in twenty years of flying except today when one female had the most amazing dress on. It was beautifully designed and showed she was in charge. I never dreamed I would google who designed Delta uniforms . The ultimate compliment is when another woman admires your outfit. . I hope your designer puts it on the market

It would be nice if was given wires ear buds. Overall was a good experience was able to sleep on the plane

My flight was 6 pm 6/6. Every hour they delayed it again - air condition issues then no pilot then the crew had worked too many hours and cancelled the flight at 11 pm. Sent customers to NJ a 45 minutes uber ride to a hotel. Had to be back by 5 am for a 7 am flight and again no pilot etc with another three hours of delays.

The entertainment and wifi mostly didn't work on this flight.

Terrible entertainment system - kept freezing and audio kept cutting out. Snacks were mediocre at best for a 5 hour flight.

The check in and bag drop off for Sky Priority members is slow. The Clear security was also slow - a TSA issue.

I am still upset that my bag was lost on a recent trip to Rome ; we were inconvenienced and out €150 Euros ; delta has refused to reimburse us

it was so bad. I tried to board my flight from vancouver to saskatoon. And to my surprise they did not board me cause the flight was changed and no email was send to me. and on my boarding pass which i got from seattle says different flight. I did not knew anyone from Vancouver, air canada crew was rude, i asked for today flight but they were rude and i had early morning dental appointment in saskatoon. I was so much in pain and my whole day is wasted today. and i suffered alot. They did provide me hotel but they did not provide me any food. I am really really disappointed first time had so bad experience with air canada. I may think twice to book it again. If i can get any reply or any composition that would be great. Thanks

It was fine, definitely older planes with no charging or anything. There’s no entertainment set up on board, but it is nice that they allow you to access the in flight entertainment from your phone without having to pay for the Wi-Fi and they do offer free texting.

Terrible. Out flight was delayed for 21 (twenty one) hours. United is a joke.

Boarding was mayhem. Late boarding by 15 minutes because of lack of staff (missing 1 flight attendant. We had to wait for an arrival of another plane before we could board). Flight was a little rough, but cannot blame on airlines.

Flight was late as pilot crew had to land at different airport in their previous flight. Passengers boarded and had to wait for pilots inside plane. Series of incomplete and unnecessary announcements by an annoying voice, rather than complete, informative announcements.

Delay and keep changing gates. I have to run around from B to C then to E.

Boarding was a little difficult. The gate area at O'Hare was very small and crowded due to multiple gates in the area. Could not hear the intercom, so had to rely on signage to see when my group was boarding and the signage was blocked by passengers standing in the gate. Flight was great and we arrived in Montreal on time.

My suitcase was completed destroyed. The top part is broken and unusable now.

When I booked it on Kayak it aaid that I wasn't allowed hamd luggage. I called United Airlines and it took them 6 minutes to figure out if I was allowed free hand luggage. Surely something that simple they should be able to tell me instantly.

I do prefer to fly United and have always had excellent service, except for bad weather. Flights are on time and staff is alway curtious and helpful

5.5 hour delay with no explanation on why, along with no proactive effort to reaccomodate me.

It was one of my worst flight ever. First they were changing the gate for at least 4 times, changing from gate D7 to D12 to D44. Considering the size of the Miami Airport, we are talking about long distance and the train at the airport was not working. Then the flight was delayed around one hour. Then finally we boarded into the plane and when everybody was seated, there was an announcement that there is an issue with one of the tire of the plane, so we all had to get out of the plane with our belongings, to replace the tire. So we had around 2.5-hour delay

Most miserable flight ever. We waited almost 2 hours on the runway because the flight was oversold. American offered $1200 credit. Then there was some nonsense about weight distribution. Ridiculous. No food for 8 plus hours on the flight. I will be writing a letter.

Honestly, I haven’t flown American in years, probably due to the pandemic and my being unable to travel for certain periods in the last two years, but it was a good experience to dig out or obtain a new American Airlines account after many years of traveling for business with American in the past.

The plane was probably full boarding was easy. We were able to check our carry-on luggage for free. It was a return flight through Philly to LA. Never saw a stewardess do a demonstration of emergency Procedures. I think my flight was pretty full

Plane, flight, crew, captain were all great. The first flight had a Chipotle box lunch...delicious.

Plane, flight, crew, captain were all great. The first flight had a Chipotle box lunch...delicious. this return flight not as tasty, but filling.

The flight was 2 hour delayed, otherwise everything was excellent. The delay was due to the hourly limit requirement so given that as a reason, I'm happy with the flight!

Weather delay for 2.5 hours followed by half hour crew delay, did not have ginger ale, uncomfortable seats

Flight was full, and would have preferred an aisle seat, but due to getting a late ticket ,the seat I had was adequate. The flight crew were very help full and hard working. Food and drink were excellent for the 11hr flight. Overall I was pleased with flight, and would recommend British Airways again.

We didn’t make the flight due to Delta’s check in line moving too slow.

The flight was ahead of schedule. A half glass of juice and a cookie is pathetic! No entertainment possibilities. Not even a plug-in for phone or IPad if you wanted to watch a downloaded movie. Back to flying Air Canada!

The flight was ahead of schedule. A half glass of juice and a cookie is pathetic!

The staff were the friendliest I have encountered in years. Absolutely great!

Plane changed to one with no entertainment system or ability to serve hot meals

Flight was delayed 3 times. Then cancelled due to pilot being timed out. They refused hotel vouchers. Gate attendants were very rude and could not help you at all.

Good. Would be better if the carry on baggage was free.

Horrible. I checked out myself that it seems that I can have a free carry-on. But they ask me to pay $75 when we are nearly boarding. It was tricky during check out that make you mistake that you can have a carry-on beside your personal item. Also they ask $75 in the airport instead of $35 during checkout. So the whole process is designed to make you this mistake

Westjet is one of the worst airlines in the world. 100% guaranteed to have flight delays and flight cancellations. Will never book again with Westjet.

Plane should have entertainment, instead of people paying to use wifi

Flight was delayed but the real issue is how long we sat after boarding. Space very limited for an overnight flight and seatbacks didn’t recline so it was almost impossible to sleep.

The staff made sure I was comfortable, moved me to a better seat with more leg room

Easy boarding and comfortable seating were plusses. Enjoyed the experience and good service from the captain and crew. Many thanks...!

Somehow, my booking was under my preferred name instead of my legal name so they almost didn’t let me board the plane at LAX. This problem should have been notified to me when I was still in Toronto.

Great overall. Quick boarding, attentive staff - great experience in premium class.

When arriving over 2 hours early to check k in at Charlotte airport I was told I would have to check my carry on ? Apparently the flight was full and may not be room. I was not given a choice and the agent was quite unpleasant about it. I am a senior amd was not comfortable me having to worry about my bag being lost vut it didn’t seem to bother him. There were lots and lots of people of all ages in line when we boarded with carryons and most larger than mine .the rest of my journey was pleasant vut this was totally unacceptable.

The layover was 6 PLUS hours and we were only given a $15.00 voucher. We missed our first activity in Quebec due to the delay.

Miserable staff as it was a late/delayed flight and crew wasn’t in the best spirits. Completely understood as neither was most of the passengers. Still unacceptable l.

It was a short flight, and no entertainment. That was not a problem for us, but there is no option for "not applicable". There was a bit of turbulence, so there was no food service.

the fact air Canada changed my flight from 850 PM to 815 AM with zero regard to the plans i made that last day, the cost i lost out on as things were non refundable amd shortening my first vacation in 7 years sickened me. when we purchase a service thats whats we expect. when we want to change the service we have to pay for that option but you do whatever you want . i called accessibility dept as i have a cpap and an implanted loop recorder first person said no problem just let security know you cant go thru scanners. then i got an email saying i had to fill out a fit to fly form . which again there was NO need to have that none. But that cost me money and time to have a doctor fill it out. then when i went to check in online i was declined i had to see a person at the airport instead. i couldnt get my boarding pass like everyone elseso here I was contacting air canada so I would have a easy travel experience and it ended up being a nightmare with more work for me, more cost and time. the flight itself was great the nightmare around it i will never subject myself to again. i tried to stick with supporting Canada but Air Canada was not worth supporting. very disappointed especially with a dept that is supposed to help disabled people not make an already challenging event not worth going thru at all.

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

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.