YYZ - STL

C$ 254 Find cheap flights from Toronto to St. Louis

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Toronto to St. Louis departing on 6/1. 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
0 bags

Search hundreds of travel sites at once for deals on flights to St. Louis

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Toronto to St. Louis, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Toronto to St. Louis, as well as popular online travel agencies
In the last 7 days, travellers have searched 47,946,175 times on KAYAK, and here is why:

Save 21% or moreCompare multiple travel sites with one search.

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

Cheap flight deals from Toronto to St. Louis (YYZ-STL)

 
These are the cheapest deals for flights from Toronto to St. Louis currently on KAYAK along with options from the most popular airlines KAYAK users selected for this route. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

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

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Toronto to St. Louis.

Recent one-way flight deals from Toronto to St. Louis

Only flying one-way? Below are some of the best one-way flight deals from Toronto to St. Louis found on KAYAK recently.

Recent last-minute flight deals from Toronto to St. Louis

Leaving soon but still want a bargain? Check out these latest deals for last minute flights from Toronto to St. Louis.

Recent direct flight deals from Toronto to St. Louis

The latest deals for direct flights from Toronto to St. Louis so you can sit back and relax without the need for a layover.

Cheap bus & train deals from Toronto to St. Louis

Find recent round-trip train or bus tickets from Toronto to St. Louis.

All round-trip flight deals to St. Louis

The cheapest plane tickets to St. Louis found on KAYAK recently.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
7:10 a.m. - 11:27 p.m.YYZ-STL
17h 17m1 stop
5:05 p.m. - 7:30 p.m.STL-YYZ
25h 25m1 stop
C$ 380
Find Deal
mar., 7 ene. - lun., 13 ene.
11:05 p.m. - 11:24 p.m.YYZ-STL
25h 19m2 stops
5:02 p.m. - 1:55 p.m.STL-YYZ
19h 53m1 stop
C$ 481
Find Deal
jue., 12 dic. - dom., 15 dic.
1:14 p.m. - 10:09 p.m.YYZ-STL
9h 55m1 stop
5:40 a.m. - 5:35 p.m.STL-YYZ
10h 55m1 stop
C$ 654American Airlines
Find Deal
vie., 17 ene. - mar., 21 ene.
1:14 p.m. - 10:09 p.m.YYZ-STL
9h 55m1 stop
5:40 a.m. - 5:35 p.m.STL-YYZ
10h 55m1 stop
C$ 661American Airlines
Find Deal
lun., 13 ene. - vie., 17 ene.
1:50 p.m. - 3:06 p.m.YYZ-STL
2h 16mdirect
3:50 p.m. - 6:45 p.m.STL-YYZ
1h 55mdirect
C$ 669Air Canada
Find Deal
vie., 13 dic. - lun., 16 dic.
6:15 p.m. - 11:43 p.m.YYZ-STL
6h 28m1 stop
4:11 p.m. - 11:59 p.m.STL-YYZ
6h 48m1 stop
C$ 671Delta
Find Deal
vie., 13 dic. - lun., 16 dic.
9:00 a.m. - 3:34 p.m.YYZ-STL
7h 34m1 stop
5:40 p.m. - 11:59 p.m.STL-YYZ
5h 19m1 stop
C$ 672Air Canada
Find Deal
jue., 12 dic. - dom., 15 dic.
1:50 p.m. - 3:06 p.m.YYZ-STL
2h 16mdirect
3:50 p.m. - 6:45 p.m.STL-YYZ
1h 55mdirect
C$ 690United Airlines
Find Deal
lun., 13 ene. - vie., 17 ene.
11:00 a.m. - 2:25 p.m.YYZ-STL
4h 25m1 stop
11:20 a.m. - 8:25 p.m.STL-YYZ
8h 05m2 stops
C$ 692United Airlines
Find Deal
jue., 12 dic. - mar., 17 dic.
10:05 a.m. - 8:56 p.m.YYZ-STL
11h 51m2 stops
6:30 a.m. - 5:56 p.m.STL-YYZ
10h 26m2 stops
C$ 763Delta
Find Deal
vie., 17 ene. - mar., 21 ene.
7:00 p.m. - 3:21 p.m.YYZ-STL
21h 21m2 stops
C$ 254
Find Deal
lun., 6 ene.
11:05 p.m. - 11:33 p.m.YYZ-STL
25h 28m2 stops
C$ 270
Find Deal
dom., 15 dic.
2:00 p.m. - 11:31 p.m.YYZ-STL
10h 31m2 stops
C$ 282
Find Deal
mié., 22 ene.
7:10 a.m. - 11:40 p.m.YYZ-STL
17h 30m1 stop
C$ 299
Find Deal
lun., 6 ene.
1:50 p.m. - 3:06 p.m.YYZ-STL
2h 16mdirect
C$ 366Air Canada
Find Deal
jue., 19 dic.
9:00 p.m. - 7:57 p.m.YYZ-STL
23h 57m1 stop
C$ 368United Airlines
Find Deal
mar., 24 dic.
8:00 a.m. - 12:26 p.m.YYZ-STL
5h 26m1 stop
C$ 375Air Canada
Find Deal
jue., 19 dic.
1:10 p.m. - 10:19 p.m.YYZ-STL
10h 09m1 stop
C$ 379American Airlines
Find Deal
vie., 27 dic.
6:15 a.m. - 9:36 a.m.YYZ-STL
4h 21m1 stop
C$ 380American Airlines
Find Deal
mar., 24 dic.
6:20 p.m. - 10:47 a.m.YYZ-STL
17h 27m2 stops
C$ 394United Airlines
Find Deal
mar., 24 dic.
2:00 p.m. - 4:26 p.m.YYZ-STL
27h 26m3 stops
5:21 p.m. - 6:40 p.m.STL-YYZ
24h 19m3 stops
C$ 1,040
Find Deal
vie., 22 nov. - dom., 24 nov.
5:45 p.m. - 4:26 p.m.YYZ-STL
23h 41m2 stops
5:21 p.m. - 6:40 p.m.STL-YYZ
24h 19m3 stops
C$ 1,045
Find Deal
vie., 22 nov. - dom., 24 nov.
5:45 p.m. - 4:26 p.m.YYZ-STL
23h 41m2 stops
5:21 p.m. - 11:35 p.m.STL-YYZ
29h 14m2 stops
C$ 1,210
Find Deal
vie., 22 nov. - dom., 24 nov.
6:15 a.m. - 11:05 a.m.YYZ-STL
5h 50m1 stop
5:45 a.m. - 4:00 p.m.STL-YYZ
9h 15m1 stop
C$ 1,269American Airlines
Find Deal
dom., 24 nov. - mar., 26 nov.
6:15 p.m. - 8:32 p.m.YYZ-STL
27h 17m1 stop
6:00 a.m. - 9:11 p.m.STL-YYZ
14h 11m2 stops
C$ 1,328WestJet
Find Deal
dom., 24 nov. - mar., 26 nov.
6:52 a.m. - 10:27 a.m.YYZ-STL
4h 35m1 stop
3:50 p.m. - 6:45 p.m.STL-YYZ
1h 55mdirect
C$ 1,357Air Canada
Find Deal
dom., 24 nov. - mar., 26 nov.
6:30 a.m. - 10:40 a.m.YYZ-STL
5h 10m1 stop
6:00 a.m. - 4:11 p.m.STL-YYZ
9h 11m1 stop
C$ 1,372Delta
Find Deal
dom., 24 nov. - mar., 26 nov.
10:35 p.m. - 8:32 p.m.YYZ-STL
22h 57m2 stops
6:00 a.m. - 12:59 p.m.STL-YYZ
5h 59m1 stop
C$ 1,445WestJet
Find Deal
dom., 24 nov. - mar., 26 nov.
5:15 p.m. - 9:17 p.m.YYZ-STL
5h 02m1 stop
12:59 p.m. - 9:32 p.m.STL-YYZ
7h 33m1 stop
C$ 1,511American Airlines
Find Deal
vie., 22 nov. - dom., 24 nov.
6:52 a.m. - 10:27 a.m.YYZ-STL
4h 35m1 stop
3:50 p.m. - 6:45 p.m.STL-YYZ
1h 55mdirect
C$ 1,556Air Canada
Find Deal
dom., 24 nov. - mar., 26 nov.
1:50 p.m. - 3:06 p.m.YYZ-STL
2h 16mdirect
3:50 p.m. - 6:45 p.m.STL-YYZ
1h 55mdirect
C$ 669Air Canada
Find Deal
vie., 13 dic. - lun., 16 dic.
1:50 p.m. - 3:06 p.m.YYZ-STL
2h 16mdirect
3:50 p.m. - 6:45 p.m.STL-YYZ
1h 55mdirect
C$ 678Air Canada
Find Deal
vie., 13 dic. - lun., 16 dic.
1:50 p.m. - 3:06 p.m.YYZ-STL
2h 16mdirect
3:50 p.m. - 6:45 p.m.STL-YYZ
1h 55mdirect
C$ 690United Airlines
Find Deal
lun., 13 ene. - vie., 17 ene.
1:50 p.m. - 3:06 p.m.YYZ-STL
2h 16mdirect
3:50 p.m. - 6:45 p.m.STL-YYZ
1h 55mdirect
C$ 692Air Canada
Find Deal
lun., 13 ene. - vie., 17 ene.
1:50 p.m. - 3:06 p.m.YYZ-STL
2h 16mdirect
3:50 p.m. - 6:45 p.m.STL-YYZ
1h 55mdirect
C$ 693United Airlines
Find Deal
vie., 17 ene. - mar., 21 ene.
1:50 p.m. - 3:06 p.m.YYZ-STL
2h 16mdirect
3:50 p.m. - 6:45 p.m.STL-YYZ
1h 55mdirect
C$ 703United Airlines
Find Deal
vie., 24 ene. - lun., 27 ene.
1:50 p.m. - 3:06 p.m.YYZ-STL
2h 16mdirect
3:50 p.m. - 6:45 p.m.STL-YYZ
1h 55mdirect
C$ 704United Airlines
Find Deal
sáb., 4 ene. - sáb., 11 ene.
1:50 p.m. - 3:06 p.m.YYZ-STL
2h 16mdirect
3:50 p.m. - 6:45 p.m.STL-YYZ
1h 55mdirect
C$ 724
Find Deal
mar., 10 dic. - mar., 7 ene.
1:50 p.m. - 3:06 p.m.YYZ-STL
2h 16mdirect
3:50 p.m. - 6:45 p.m.STL-YYZ
1h 55mdirect
C$ 725Air Canada
Find Deal
sáb., 21 dic. - mar., 7 ene.
1:50 p.m. - 3:06 p.m.YYZ-STL
2h 16mdirect
3:50 p.m. - 6:45 p.m.STL-YYZ
1h 55mdirect
C$ 735Air Canada
Find Deal
jue., 12 dic. - mar., 17 dic.

Flights from Toronto to St. Louis - Travel Insights & Trends

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

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

The average price of all flights from Toronto Pearson Intl Airport to St. Louis clicked on KAYAK for each day over the last 12 months.
If you are looking for a flight deal from Toronto to St. Louis, look for departures on Wednesdays and avoid leaving on a Thursday, as it's usually the priciest day. When flying back from St. Louis, Sunday is the cheapest day to fly and Monday is the most expensive.

What is the cheapest month to fly from Toronto Pearson Intl Airport to St. Louis?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Toronto Pearson Intl Airport to St. Louis, 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 Toronto Pearson Intl Airport to St. Louis is May, where tickets cost C$ 595 on average. On the other hand, the most expensive months are August and March, where the average cost of tickets is C$ 704 and C$ 676 respectively.

How far in advance should I book a flight from Toronto Pearson Intl Airport to St. Louis?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Toronto Pearson Intl Airport to St. Louis, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Toronto Pearson Intl Airport to St. Louis, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 78 days before departure.

Good to know

Low season

January

High season

July

Cheapest flight

C$ 254
Best time to beat the crowds but there is an average 5% increase in price.
Most popular time to fly and prices are also 3% lower on average.
Flight from Toronto to St. Louis

When to book flights from Toronto to St. Louis

Are your dates flexible? Find out the best times to travel from Toronto to St. Louis based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Toronto to St. Louis flights

  • What is the cheapest flight from Toronto Pearson Intl Airport to St. Louis?

    In the last 3 days, the lowest price for a flight from Toronto Pearson Intl Airport to St. Louis was C$ 182 for a one-way ticket and C$ 272 for a round-trip.

  • Which airlines offer Wi-Fi service onboard planes from Toronto to St. Louis?

    Air Canada, and United Airlines offer inflight Wi-Fi service on the Toronto to St. Louis flight route.

  • Which aircraft models fly most regularly from Toronto to St. Louis?

    The Canadair (Bombardier) Regional Jet 900 is the aircraft model that flies most regularly on the Toronto to St. Louis flight route.

  • Which airline alliances offer flights from Toronto to St. Louis?

    Star Alliance is the only airline alliance operating flights between Toronto and St. Louis.

  • On which days can I fly direct from Toronto to St. Louis?

    There are direct flights from Toronto to St. Louis on a daily basis.

  • Which is the best airline for flights from Toronto to St. Louis, United Airlines or Air Canada?

    The two airlines most popular with KAYAK users for flights from Toronto to St. Louis are United Airlines and Air Canada. With an average price for the route of C$ 655 and an overall rating of 7.4, United Airlines is the most popular choice. Air Canada is also a great choice for the route, with an average price of C$ 666 and an overall rating of 7.0.

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

    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 Toronto to St. Louis.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis from Toronto 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 Toronto to St. Louis?

    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 to St. Louis with an airline and back to Toronto with another airline.

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

    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 to St. Louis from Toronto up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

KAYAK’s top tips for finding a cheap flight from Toronto Pearson Intl Airport to St. Louis

  • Looking for a cheap flight? 25% of our users found flights on this route for C$ 374 or less one-way and C$ 663 or less round-trip.

Prefer to fly non-stop from Toronto to St. Louis?

Find which airlines fly direct from Toronto Pearson Intl Airport to Lambert-St Louis Airport, which days they fly and book direct flights.

Nonstop departures

Toronto Pearson Intl to Lambert-St Louis

Monday

Air Canada,United Airlines

Air Canada,United Airlines

Tuesday

Air Canada,United Airlines

Air Canada,United Airlines

Wednesday

Air Canada,United Airlines

Air Canada,United Airlines

Thursday

Air Canada,United Airlines

Air Canada,United Airlines

Friday

Air Canada,United Airlines

Air Canada,United Airlines

Saturday

Air Canada,United Airlines

Air Canada,United Airlines

Sunday

Air Canada,United Airlines

Air Canada,United Airlines

See more nonstop flights

Nonstop returns

Lambert-St Louis to Toronto Pearson Intl

Monday

Air Canada,United Airlines

Air Canada,United Airlines

Tuesday

Air Canada,United Airlines

Air Canada,United Airlines

Wednesday

Air Canada,United Airlines

Air Canada,United Airlines

Thursday

Air Canada,United Airlines

Air Canada,United Airlines

Friday

Air Canada,United Airlines

Air Canada,United Airlines

Saturday

Air Canada,United Airlines

Air Canada,United Airlines

Sunday

Air Canada,United Airlines

Air Canada,United Airlines

See more nonstop flights
See more nonstop flights

Top airlines flying from Toronto to St. Louis

 
See real verified KAYAK customer reviews for airlines flying from Toronto to St. Louis. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Toronto to St. Louis? 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.
7.4
United AirlinesOverall score based on 9172 reviews
7.1Entertainment
7.3Comfort
6.7Food
7.7Boarding
8.1Crew
Airline reviews

United airlines was top for my last trip in every way

10.0 Excellentjane, Oct 2024YYZ - DEN
Read more United Airlines reviews

United airlines was top for my last trip in every way

Horrible; seating was atrocious - inadequate leg room and seat width tight even for a small individual. Profits shouldn’t be everything!

Connection coordination with Star Alliance partner could be better. Lots of check in setup was not interlinked between operators.

There was no room in overhead bin to place our luggage despite we had tree seats. It means a lot of people had more than 1 carry on bags. When I asked a crew member to help she said that it was not her responsibility.

The plane used to go to Chicago was a bit outdated and needed a refresh

My connecting gate in .Chicago was across the aisle from my arriving gate. Otherwise I would not have made my connection. So that was very fortunate.

I flew basic economy, so it was what I expected. Crew was nice though, and flight was quick. Would recommend for flights under 6 hours, otherwise would upgrade to something with more leg room.

Bad, they delayed my flight, lost my connection flight had to stay overnight for the next flight and missed a lot of important meetings. 1 day totally lost!

Airline staff was good the checkin process was ok but the plane itself was very bad the comfort was worst it was worst and the most stiff 5 hours of my life i felt claustrophobic

We boarded and buckled and then deplaned due to no pilot. Had to wait over 3 hours for a new pilot. Not weather related, just poor management.

They charge 5 dollars for plastic headphones for a flight of 1 hour! Seats are awful. Service is terrible.

was wondreful! just let me know what airline im flying in advance!

On this flight, we didn't even get water offered, nor any other beverage. Therefore we got a snack of pretzels. Flight was good and Air Canada a good airline

I would realllllly like to have been in a seat closer than row FORTY. Needing assistance - longgg way to walk down and back; then they put me in the middle seat-needing to get up for the window seat passenger to go to the washroom etc.

Everything was seamless. I would have appreciated knowing there would not be any real food available for purchase in advance. Otherwise a great experience. Thank you!

The flight was delayed but at least they let us know early about it (the night before)! Everything after that was smooth!

Our seats were changed 3 times in the final 24 hours, and then my wife and I ended up with two middle seats in different rows. Full flight so no changes could be made at the gate.

Air Canada was on schedule, fast, and took care of me the whole flight. With affordable price, I 100% recommend you fly Air Canada if you are able to.

I book my air canada flight and i am an aeroplan card holder however I was required to pay for my first check-in bag. Terrible experience

Multiple change of the gates at Pearson, delayed flight was extremely uncomfortable.

Book cheap flights from Toronto to St. Louis

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Toronto to St. Louis found on KAYAK in the last 72 hours.
6/1lun.
2 stops
21h 21mYYZ-STL
C$ 254
15/12dom.
2 stops
25h 28mYYZ-STL
C$ 270
22/1mié.
2 stops
10h 31mYYZ-STL
C$ 282
6/1lun.
1 stop
17h 30mYYZ-STL
C$ 299
19/12jue.
directAir Canada
2h 16mYYZ-STL
C$ 366
24/12mar.
1 stopUnited Airlines
23h 57mYYZ-STL
C$ 368
19/12jue.
1 stopAir Canada
5h 26mYYZ-STL
C$ 375
27/12vie.
1 stopAmerican Airlines
10h 09mYYZ-STL
C$ 379
24/12mar.
1 stopAmerican Airlines
4h 21mYYZ-STL
C$ 380
24/12mar.
2 stopsUnited Airlines
17h 27mYYZ-STL
C$ 394

Search by stops

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Search by price

Last minute flights from Toronto to St. Louis

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Toronto to St. Louis that are departing in the next 10 days.
22/11vie.
multi-stop
27h 26mYYZ-STL
24/11dom.
multi-stop
24h 19mSTL-YYZ
C$ 1,040
22/11vie.
multi-stop
23h 41mYYZ-STL
24/11dom.
multi-stop
24h 19mSTL-YYZ
C$ 1,045
22/11vie.
multi-stop
23h 41mYYZ-STL
24/11dom.
multi-stop
29h 14mSTL-YYZ
C$ 1,210
24/11dom.
multi-stopAmerican Airlines
5h 50mYYZ-STL
26/11mar.
multi-stopAmerican Airlines
9h 15mSTL-YYZ
C$ 1,269
24/11dom.
multi-stopWestJet
27h 17mYYZ-STL
26/11mar.
multi-stopWestJet
14h 11mSTL-YYZ
C$ 1,328
24/11dom.
multi-stopAir Canada
4h 35mYYZ-STL
26/11mar.
directAir Canada
1h 55mSTL-YYZ
C$ 1,357
24/11dom.
multi-stopDelta
5h 10mYYZ-STL
26/11mar.
multi-stopDelta
9h 11mSTL-YYZ
C$ 1,372
24/11dom.
multi-stopWestJet
22h 57mYYZ-STL
26/11mar.
multi-stopWestJet
5h 59mSTL-YYZ
C$ 1,445
22/11vie.
multi-stopAmerican Airlines
5h 02mYYZ-STL
24/11dom.
multi-stopAmerican Airlines
7h 33mSTL-YYZ
C$ 1,511
24/11dom.
multi-stopAir Canada
4h 35mYYZ-STL
26/11mar.
directAir Canada
1h 55mSTL-YYZ
C$ 1,556

Search by stops

Search by airline

Search by price

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

Information on your arrival and departure airports

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