YYZ - STL

C$ 209 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 7/1. 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 41,299,237 times on KAYAK, and here is why:

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Cheap Flight Deals from Toronto to St. Louis (YYZ-STL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Toronto to St. Louis 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.

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.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
7:05 a.m. - 2:42 p.m.YYZ-STL
8h 37m1 stop
5:20 p.m. - 11:45 a.m.STL-YYZ
17h 25m1 stop
C$ 404
Find Deal
Tue, 4 Mar - Tue, 4 Mar
7:05 a.m. - 2:43 p.m.YYZ-STL
8h 38m1 stop
12:15 p.m. - 11:53 p.m.STL-YYZ
34h 38m3 stops
C$ 538
Find Deal
Thu, 16 Jan - Wed, 22 Jan
1:14 p.m. - 10:09 p.m.YYZ-STL
9h 55m1 stop
12:00 p.m. - 9:20 p.m.STL-YYZ
8h 20m1 stop
C$ 630American Airlines
Find Deal
Thu, 16 Jan - Wed, 22 Jan
7:55 a.m. - 4:49 p.m.YYZ-STL
9h 54m1 stop
6:06 a.m. - 4:08 p.m.STL-YYZ
9h 02m1 stop
C$ 646Delta
Find Deal
Wed, 26 Feb - Tue, 4 Mar
6:15 a.m. - 5:57 p.m.YYZ-STL
12h 42m1 stop
6:06 a.m. - 4:08 p.m.STL-YYZ
9h 02m1 stop
C$ 654Delta
Find Deal
Sat, 15 Feb - Thu, 20 Feb
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$ 677Air Canada
Find Deal
Thu, 16 Jan - Wed, 22 Jan
1:50 p.m. - 3:06 p.m.YYZ-STL
2h 16mdirect
12:41 p.m. - 11:59 p.m.STL-YYZ
10h 18m1 stop
C$ 687United Airlines
Find Deal
Sat, 1 Feb - Sat, 8 Feb
9:00 a.m. - 2:14 p.m.YYZ-STL
6h 14m1 stop
5:30 p.m. - 11:11 p.m.STL-YYZ
4h 41m1 stop
C$ 690United Airlines
Find Deal
Thu, 16 Jan - Thu, 16 Jan
1:14 p.m. - 10:09 p.m.YYZ-STL
9h 55m1 stop
1:00 p.m. - 7:04 p.m.STL-YYZ
5h 04m1 stop
C$ 691American Airlines
Find Deal
Mon, 13 Jan - Fri, 17 Jan
9:00 a.m. - 3:38 p.m.YYZ-STL
7h 38m1 stop
3:50 p.m. - 6:45 p.m.STL-YYZ
1h 55mdirect
C$ 698Air Canada
Find Deal
Mon, 13 Jan - Fri, 17 Jan

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 round-trip flights from Toronto Pearson Intl Airport to St. Louis clicked on KAYAK for each day over the last 12 months.
For Toronto to St. Louis, Wednesday is the cheapest day to fly on average and Thursday is the most expensive. Flying from St. Louis back to Toronto, the best deals are generally found on Monday, with Friday being 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 round-trip 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 February, where tickets cost C$ 613 (return) on average. On the other hand, the most expensive months are December and August, where the average cost of round-trip tickets is C$ 763 and C$ 720 respectively.

Can I save money by flying with a layover from Toronto Pearson Intl Airport to St. Louis?

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.
Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 2 stops layover the cheapest option at C$ 668 on average.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip 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 week.
To get a below average price on the flight from Toronto Pearson Intl Airport to St. Louis, you should book around 5 weeks before departure. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

Good to know

Low season

January

High season

December

Cheapest flight

C$ 209
Best time to beat the crowds but there is an average 1% increase in price.
Most popular time to fly (14% more expensive 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$ 146 for a one-way ticket and C$ 283 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$ 691 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$ 691 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$ 448 or less one-way and C$ 712 or less round-trip.

Prefer to fly direct 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.

Direct 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

Direct 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 9059 reviews
7.3Comfort
7.1Entertainment
7.7Boarding
8.1Crew
6.7Food
Airline reviews

HORRIBLE WITH THEIR WEBSITE!!! WORST WEBSITE IN THE WHOLE AIRLINE INDUSTRY

8.0 ExcellentDiego, Dec 2024YUL - EWR
Read more United Airlines reviews

HORRIBLE WITH THEIR WEBSITE!!! WORST WEBSITE IN THE WHOLE AIRLINE INDUSTRY

It was 4 hours late. Almost missed my connecting flight no food or drinks on connecting flight. Overall terrible experience

Cramped seats. Audio jack for the in -flight entertainment was broken.

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.

The experience was good. Flight was on time. Liked how they offered to accept carryon baggage for free before as I was checking in online.

Flight was delayed by 45 min. No problems. Everyone took it in stride.

Crew was friendly and helpful; cabin seemed roomy even in economy class.

The flight attendants that assisted me were exceptionally nice, kind and helpful

Something wrong with the plane so had to deplane and waited over 2 hours to finally leave

AC needs to update their fleet. Too many mechanical issues, dated planes and too many delays

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.

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.
7/1Tue
1 stop
17h 17mYYZ-STL
C$ 209
7/1Tue
1 stop
17h 17mYYZ-STL
C$ 210
16/1Thu
1 stop
17h 21mYYZ-STL
C$ 217
15/1Wed
2 stops
10h 27mYYZ-STL
C$ 250
16/1Thu
2 stops
14h 01mYYZ-STL
C$ 257
7/1Tue
directAir Canada
2h 16mYYZ-STL
C$ 373
7/1Tue
directUnited Airlines
2h 16mYYZ-STL
C$ 378
7/1Tue
2 stopsUnited Airlines
10h 08mYYZ-STL
C$ 387
8/1Wed
directAir Canada
2h 16mYYZ-STL
C$ 428
7/1Tue
2 stopsDelta
10h 54mYYZ-STL
C$ 538

Search by stops

Search by airline

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.
22/12Sun
multi-stop
11h 28mYYZ-STL
28/12Sat
multi-stop
16h 50mSTL-YYZ
C$ 1,144
22/12Sun
multi-stop
11h 28mYYZ-STL
29/12Sun
multi-stop
3h 46mSTL-YYZ
C$ 1,211
22/12Sun
multi-stopAmerican Airlines
8h 10mYYZ-STL
29/12Sun
multi-stopAmerican Airlines
11h 04mSTL-YYZ
C$ 1,283
22/12Sun
multi-stopWestJet
13h 06mYYZ-STL
29/12Sun
multi-stopWestJet
3h 46mSTL-YYZ
C$ 1,340
22/12Sun
multi-stopWestJet
13h 06mYYZ-STL
28/12Sat
multi-stopWestJet
3h 53mSTL-YYZ
C$ 1,350
22/12Sun
multi-stopWestJet
13h 06mYYZ-STL
28/12Sat
multi-stopWestJet
31h 55mSTL-YYZ
C$ 1,404
22/12Sun
multi-stop
29h 30mYYZ-STL
28/12Sat
multi-stop
16h 50mSTL-YYZ
C$ 1,424
22/12Sun
multi-stopAir Canada
7h 51mYYZ-STL
29/12Sun
directAir Canada
1h 55mSTL-YYZ
C$ 1,795
22/12Sun
directUnited Airlines
2h 16mYYZ-STL
29/12Sun
directUnited Airlines
1h 55mSTL-YYZ
C$ 2,229
22/12Sun
directUnited Airlines
2h 16mYYZ-STL
28/12Sat
directUnited Airlines
1h 55mSTL-YYZ
C$ 2,627

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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