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C$ 194 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 30/5. 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
Fri 7/6
Fri 14/6

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 43,968,530 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.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
8:20 p.m. - 1:05 p.m.YYZ-STL
17h 45m1 stop
11:57 a.m. - 6:42 a.m.STL-YYZ
17h 45m2 stops
C$ 397
Find Deal
Tue, 4 Jun - Tue, 11 Jun
8:20 p.m. - 10:46 a.m.YYZ-STL
15h 26m1 stop
7:30 a.m. - 7:35 p.m.STL-YYZ
11h 05m2 stops
C$ 412
Find Deal
Tue, 21 May - Tue, 28 May
6:55 p.m. - 8:01 p.m.YYZ-STL
2h 06mdirect
6:30 a.m. - 11:52 a.m.STL-YYZ
4h 22m1 stop
C$ 501Air Canada
Find Deal
Tue, 21 May - Tue, 28 May
6:55 p.m. - 8:01 p.m.YYZ-STL
2h 06mdirect
5:31 p.m. - 11:58 p.m.STL-YYZ
5h 27m1 stop
C$ 504Air Canada
Find Deal
Sat, 1 Jun - Tue, 4 Jun
11:00 a.m. - 2:14 p.m.YYZ-STL
4h 14m1 stop
5:31 p.m. - 11:58 p.m.STL-YYZ
5h 27m1 stop
C$ 511United Airlines
Find Deal
Tue, 18 Jun - Tue, 18 Jun
11:00 a.m. - 2:14 p.m.YYZ-STL
4h 14m1 stop
5:31 p.m. - 11:58 p.m.STL-YYZ
5h 27m1 stop
C$ 512United Airlines
Find Deal
Tue, 18 Jun - Tue, 18 Jun
3:45 p.m. - 12:03 a.m.YYZ-STL
9h 18m1 stop
9:22 a.m. - 2:59 p.m.STL-YYZ
4h 37m1 stop
C$ 519American Airlines
Find Deal
Fri, 21 Jun - Sat, 29 Jun
7:23 p.m. - 12:03 a.m.YYZ-STL
5h 40m1 stop
5:15 a.m. - 2:59 p.m.STL-YYZ
8h 44m1 stop
C$ 527American Airlines
Find Deal
Thu, 20 Jun - Sun, 23 Jun
12:30 p.m. - 5:22 p.m.YYZ-STL
5h 52m1 stop
6:30 p.m. - 11:57 p.m.STL-YYZ
4h 27m1 stop
C$ 563Delta
Find Deal
Tue, 4 Jun - Wed, 5 Jun
6:30 a.m. - 5:22 p.m.YYZ-STL
11h 52m2 stops
6:06 a.m. - 11:38 a.m.STL-YYZ
4h 32m1 stop
C$ 588Delta
Find Deal
Wed, 5 Jun - Wed, 12 Jun

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 Tuesdays and avoid leaving on a Sunday, 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 January, where tickets cost C$ 571 on average. On the other hand, the most expensive months are June and March, where the average cost of tickets is C$ 716 and C$ 660 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.

Which airlines provide the cheapest flights from Toronto to St. Louis?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 3 days, United Airlines offered the best one-way deal for that route, at C$ 278. KAYAK users also found Toronto to St. Louis round-trip flights on Air Canada from C$ 501 and on United Airlines from C$ 511.

Which airlines fly direct between Toronto Pearson Intl Airport and St. Louis?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for flights from Toronto Pearson Intl Airport to St. Louis.
There is just one airline that flies from Toronto Pearson Intl Airport to St. Louis direct and that is Air Canada. The best one-way deal found from Air Canada for the route is C$ 472.

How many flights are there between Toronto Pearson Intl Airport and St. Louis per day?

Each day, there are 2 nonstop flights that take off from Toronto Pearson Intl Airport and land in St. Louis, with an average flight time of 2h 06m. The most common departure time is 6:00 p.m. and most flights take off in the evening. Each week, there are 14 flights and there are the same amount of flights each day 2.

Which cabin class options are there for flights between Toronto Pearson Intl Airport and St. Louis?

The average price of flights for each cabin class for the route found by users searching on KAYAK over the last 2 weeks.
There is only one cabin class option available for the route, which is Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

How long does a flight from Toronto to St. Louis take?

A direct flight to St. Louis will take on average 2h 06m to travel the 1,692 km flying distance from Toronto.

What’s the earliest departure time from Toronto to St. Louis?

Early birds can take the earliest flight from Toronto Pearson Intl Airport at 2:15 pm and will be landing in St. Louis at 3:21 pm.

What’s the latest departure time from Toronto to St. Louis?

If you prefer to fly at night, the latest flight from Toronto Pearson Intl Airport to St. Louis jets off at 6:55 pm and lands at 8:01 pm.

Good to know

Low season

January

High season

May

Cheapest flight

C$ 194
Best time to beat the crowds (24% less expensive on average)
Most popular time to fly and prices are also 5% 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$ 142 for a one-way ticket and C$ 290 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$ 619 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$ 629 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

Top tips for finding a cheap flight from Toronto to St. Louis

  • Looking for a cheap flight? 25% of our users found flights on this route for C$ 362 or less one-way and C$ 616 or less round-trip.

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

Find which airlines fly direct from Pearson Intl to Lambert-St Louis, 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 11043 reviews
7.7Boarding
7.2Comfort
7.1Entertainment
8.1Crew
6.7Food
Airline reviews

It was good! Appreciated that it was very on schedule so it made the connecting flight less stressful

8.0 ExcellentAnonymous, Apr. 2024YUL - ORD
Read more about United Airlines reviews

It was good! Appreciated that it was very on schedule so it made the connecting flight less stressful

Two flights,both poor. No entertainment. Cramped and uncomfortable seats, little space, the rest was OK. Staff were acceptable good.

Last minute gate change nearly caused us to miss our flight. Change was not announced or displayed in the main board at the old gate. Terrible communication. When we landed we had to wait 20 minutes because there was another plane at the assigned gate. Not the crew’s fault, but adding 20 minutes to a 45 minute flight sucked.

The crew was doing their best on an old plane needing updating. Chairs that creaked and wouldn’t stay in position. My tray table was unusable as was on-board entertainment due the audio needing usb earphones (that were not provided). Prior to boarding in Toronto and despite being scheduled for a wheelchair and assistance, we were dropped off by clubcar without a wheelchair which I found myself by a gate. Due to no boarding gate assigned at that time we waited and when it was, it subsequently was moved from 64 to 95. No help could be found so I pushed my husband’s chair to that furthest gate in the airport at the highest speed possible for a 73 year old. And by that I mean I ran. It was a very stressful experience.

Wifi wasn't working on one of the UA flights after boarding.

Leg room was lacking. Legs crammed into seat in front.

T hey did a great job. Flight was on time .

the plane was old. the wifi didn’t work. the entertainment was boring and dated. the charging ports were impossible to find. i was mostly ignored by flight attendants that had no problem speaking to the man beside me. i got two drinks the entire time i was on the plane.

Crew was not very helpful. They forgot to serve me coffee and had to wait for a long time.It looked as if they were not very happy with what they were doing.

The flight I was connecting with waited for me even though my 1st flight was late. I really appreciated that.

I liked the early check in. Flight was a bit bumpy due yo weather. Overall, everything went well.

Limited snack options cause the snack vendor was on strike

It was an excellent experience, traveling from Toronto to Denver with United.

Ontime boarding. Almost 1 hour take off delay. We could have boarded slightly later since the pilots were in traffic

This was the first AC flight in a long time that we experienced no delays or frustrations. The gate attendant was extremely polite and accommodating to my husband who has Parkinson’s disease which made boarding extremely stress free. Flight departed ON TIME and was a smooth ride. If only all my AC experiences could be like this.

I didn’t like the fact that all the customs officers went to lunch so I was in line for 90 minutes due to where the staff directed me. We were told three very different reasons for why the plane was delayed. It was a crowded plane with difficult storage situations for the Carry On bags. The Air Canada airline staff were all very good and professional. I was so disappointed in my cheese and fruit box as the cheese had molded and the fruit wasn’t fresh so I couldn’t eat the majority of the food. This was the last meal I could find as the restaurants had closed when I got in to my destination. I think you could work on improving the food quality.

Once again my complaint is how close the seats are together. Also, the bathrooms were not very clean by the second half of the flight.

Excellent in flight service, perhaps the best we've ever had. Business class feels tired and needs improvement to compete with other airlines. The food looked good but tasted terrible. Check in was quick, the flight arrived early and our luggage was on our flight with us.

The staff were so kind and helpful. We flew back from NY with another airline and it was horrible. We will always stick with Air Canada as everything was far better!

The boarding process in Toronto bad as they share space with domestic flights and when those domestic flights come in you are locked out behind closed doors until they are done and then its a mad rush to get your boarding gates and board. This is not so much due to Air Canada but with the GTAA, but Air Canada could use different gates especially early morning in order to prevent such travel angst.

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.
30/5Thu
1 stop
11h 59mYYZ-STL
C$ 194
25/5Sat
1 stop
10h 55mYYZ-STL
C$ 222
30/5Thu
directUnited Airlines
2h 06mYYZ-STL
C$ 278
1/8Thu
directAir Canada
2h 06mYYZ-STL
C$ 289
1/8Thu
directAir Canada
2h 06mYYZ-STL
C$ 290
30/6Sun
1 stopDelta
5h 05mYYZ-STL
C$ 297
3/9Tue
1 stopDelta
4h 32mYYZ-STL
C$ 300
16/9Mon
2 stopsWestJet
10h 32mYYZ-STL
C$ 323
9/9Mon
1 stopWestJet
12h 44mYYZ-STL
C$ 333
16/9Mon
directUnited Airlines
2h 05mYYZ-STL
C$ 404

Search by stops

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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.
13/5Mon
multi-stop
28h 09mYYZ-STL
16/5Thu
multi-stop
10h 50mSTL-YYZ
C$ 531
13/5Mon
multi-stop
26h 54mYYZ-STL
16/5Thu
multi-stop
11h 05mSTL-YYZ
C$ 629
13/5Mon
multi-stop
28h 09mYYZ-STL
16/5Thu
multi-stop
26h 42mSTL-YYZ
C$ 630
10/5Fri
multi-stop
15h 13mYYZ-STL
12/5Sun
multi-stop
11h 05mSTL-YYZ
C$ 686
10/5Fri
multi-stop
28h 58mYYZ-STL
12/5Sun
multi-stop
11h 05mSTL-YYZ
C$ 700
11/5Sat
multi-stop
10h 55mYYZ-STL
12/5Sun
multi-stop
11h 05mSTL-YYZ
C$ 757
10/5Fri
multi-stop
17h 22mYYZ-STL
17/5Fri
multi-stop
11h 00mSTL-YYZ
C$ 804
10/5Fri
multi-stop
28h 58mYYZ-STL
17/5Fri
multi-stop
25h 50mSTL-YYZ
C$ 937
10/5Fri
directAir Canada
2h 06mYYZ-STL
17/5Fri
multi-stopAir Canada
6h 38mSTL-YYZ
C$ 1,267
10/5Fri
multi-stopAir Canada
5h 05mYYZ-STL
12/5Sun
directAir Canada
2h 01mSTL-YYZ
C$ 1,502

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Toronto - St. Louis Flights

Departure:

Toronto (undefined)Canada

Destination:

St. Louis (STL)United States

Return flight deals:

St. Louis - Toronto

Cabin classes:

C$ 1,141
C$ 426