YYZ - STL

$159 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 1/7. 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 travelers have searched 41,299,237 times on KAYAK, and here is why:

Save 23% or moreCompare multiple travel sites with one search.

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

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

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

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
7:10 am - 11:31 pmYYZ-STL
17h 21m1 stop
4:28 pm - 10:35 pmSTL-YYZ
29h 07m1 stop
Thu, Jan 16 - Thu, Jan 23
7:05 am - 2:43 pmYYZ-STL
8h 38m1 stop
4:28 pm - 1:55 pmSTL-YYZ
20h 27m2 stops
Thu, Jan 16 - Thu, Jan 23
6:43 pm - 8:54 amYYZ-STL
15h 11m1 stop
6:06 am - 4:08 pmSTL-YYZ
9h 02m1 stop
$418Delta
Find Deal
Wed, Feb 26 - Tue, Mar 4
6:43 pm - 8:54 amYYZ-STL
15h 11m1 stop
6:06 am - 4:08 pmSTL-YYZ
9h 02m1 stop
$419Delta
Find Deal
Wed, Feb 26 - Tue, Mar 4
1:50 pm - 3:06 pmYYZ-STL
2h 16mnonstop
3:50 pm - 6:45 pmSTL-YYZ
1h 55mnonstop
$474Air Canada
Find Deal
Thu, Jan 16 - Wed, Jan 22
1:50 pm - 3:06 pmYYZ-STL
2h 16mnonstop
3:50 pm - 6:45 pmSTL-YYZ
1h 55mnonstop
$478Air Canada
Find Deal
Wed, Feb 26 - Tue, Mar 4
1:50 pm - 3:06 pmYYZ-STL
2h 16mnonstop
9:44 am - 8:25 pmSTL-YYZ
9h 41m2 stops
$479United Airlines
Find Deal
Fri, Jan 24 - Sun, Jan 26
7:00 am - 2:58 pmYYZ-STL
8h 58m1 stop
7:20 am - 7:04 pmSTL-YYZ
10h 44m1 stop
$480American Airlines
Find Deal
Thu, Jan 16 - Wed, Jan 22
9:00 am - 3:38 pmYYZ-STL
7h 38m1 stop
3:50 pm - 6:45 pmSTL-YYZ
1h 55mnonstop
$488United Airlines
Find Deal
Mon, Jan 13 - Fri, Jan 17
10:59 am - 9:45 pmYYZ-STL
11h 46m1 stop
6:30 am - 3:09 pmSTL-YYZ
7h 39m2 stops
$648American Airlines
Find Deal
Mon, Dec 30 - Wed, Jan 1

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.
If your flying dates are flexible, you should consider flying to St. Louis on a Monday, as we generally find the cheapest rates on that day for this route. On the other hand, Sunday is the most expensive day to fly from Toronto to St. Louis. For your return ticket, we recommend flying on a Wednesday and avoiding Fridays for the best deals.

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 $429 (return) on average. On the other hand, the most expensive months are December and August, where the average cost of round-trip tickets is $534 and $504 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 $472 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

$159
Best time to beat the crowds but there is an average 1% increase in price.
Most popular time to fly with an average 14% increase in price.
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 $159 for a one-way ticket and $258 for a round-trip.

  • Do I need a passport to fly between Toronto and St. Louis?

    A passport is required to fly from Toronto to St. Louis.

  • 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 nonstop 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 $431 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 $450 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 travelers 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. Booking your flights between Toronto and STL can sometimes prove cheaper using this method.

  • 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 $229 or less one-way and $274 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 direct 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 direct flights
See more direct 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 9041 reviews
8.1Crew
7.1Entertainment
7.3Comfort
7.7Boarding
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.

Service was excellent, but they ran out of food options by the time they got to my seat (row 36).

The idea of needing to go outside in the winter to board in icy cold temperatures is totally a non starter for me. Seats were very uncomfortable though the leg room not too terrible. Attendants were nice

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!

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.
1/7Tue
1 stop
9h 16mYYZ-STL
$159
1/7Tue
1 stop
9h 16mYYZ-STL
$161
1/27Mon
1 stop
17h 21mYYZ-STL
$183
3/9Sun
1 stopUnited Airlines
7h 31mYYZ-STL
$268
3/1Sat
2 stopsUnited Airlines
11h 19mYYZ-STL
$269
1/2Thu
nonstopAir Canada
2h 16mYYZ-STL
$299
1/7Tue
nonstopAir Canada
2h 16mYYZ-STL
$300
1/7Tue
2 stopsUnited Airlines
9h 23mYYZ-STL
$306
1/1Wed
nonstopAir Canada
2h 16mYYZ-STL
$331
1/26Sun
2 stopsAir Canada
14h 44mYYZ-STL
$421

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.
12/25Wed
multi-stopAmerican Airlines
16h 29mYYZ-STL
1/1Wed
multi-stopAmerican Airlines
4h 25mSTL-YYZ
$768
12/25Wed
multi-stopAmerican Airlines
9h 05mYYZ-STL
1/1Wed
multi-stopAmerican Airlines
6h 24mSTL-YYZ
$820
12/25Wed
multi-stop
20h 49mYYZ-STL
1/1Wed
nonstop
1h 55mSTL-YYZ
$829
12/25Wed
nonstop
2h 16mYYZ-STL
1/1Wed
nonstop
1h 55mSTL-YYZ
$870
12/22Sun
multi-stopDelta
3h 44mYYZ-STL
12/29Sun
multi-stopDelta
3h 53mSTL-YYZ
$938
12/22Sun
multi-stopAir Canada
8h 32mYYZ-STL
12/26Thu
multi-stopAir Canada
6h 31mSTL-YYZ
$1,015
12/22Sun
multi-stopDelta
8h 25mYYZ-STL
12/29Sun
multi-stopDelta
3h 53mSTL-YYZ
$1,158
12/22Sun
multi-stopAir Canada
6h 57mYYZ-STL
12/26Thu
nonstopAir Canada
1h 55mSTL-YYZ
$1,194
12/22Sun
nonstopUnited Airlines
2h 16mYYZ-STL
12/26Thu
nonstopUnited Airlines
1h 55mSTL-YYZ
$1,507
12/22Sun
nonstopUnited Airlines
2h 16mYYZ-STL
12/29Sun
nonstopUnited Airlines
1h 55mSTL-YYZ
$1,549

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

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