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Cheap flights from Toronto Pearson Intl Airport to St. Louis from C$ 241

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Toronto Pearson Intl Airport to St. Louis departing on 25/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Toronto Pearson Intl Airport to St. Louis

Cheap round-trip flights

American Airlines Logo
4:44 p.m. - 11:56 p.m.YYZ-STL
8h 12m1 stop
American Airlines Logo
6:00 a.m. - 4:04 p.m.STL-YYZ
9h 04m1 stop
C$ 444American Airlines
Find Deal
Sat, 8 Nov - Sat, 15 Nov
Air Canada Logo
2:15 p.m. - 3:18 p.m.YYZ-STL
2h 03mdirect
Air Canada Logo
4:05 p.m. - 7:00 p.m.STL-YYZ
1h 55mdirect
C$ 487Air Canada
Find Deal
Fri, 12 Sep - Sun, 14 Sep
Delta Logo
6:04 a.m. - 4:49 p.m.YYZ-STL
11h 45m1 stop
Delta Logo
6:05 a.m. - 4:08 p.m.STL-YYZ
9h 03m1 stop
C$ 563Delta
Find Deal
Mon, 8 Sep - Thu, 11 Sep
Logo
6:45 a.m. - 11:59 p.m.YYZ-STL
18h 14m2 stops
Logo
10:35 a.m. - 8:55 p.m.STL-YYZ
9h 20m1 stop
C$ 577
Find Deal
Sun, 7 Sep - Thu, 11 Sep
Logo
6:45 a.m. - 11:59 p.m.YYZ-STL
18h 14m2 stops
Logo
10:35 a.m. - 8:55 p.m.STL-YYZ
9h 20m1 stop
C$ 596
Find Deal
Sun, 7 Sep - Thu, 11 Sep
United Airlines Logo
12:45 p.m. - 9:32 p.m.YYZ-STL
9h 47m2 stops
United Airlines Logo
7:04 p.m. - 9:58 a.m.STL-YYZ
13h 54m1 stop
C$ 634United Airlines
Find Deal
Tue, 26 Aug - Tue, 2 Sep
United Airlines Logo
7:00 a.m. - 8:46 p.m.YYZ-STL
14h 46m3 stops
United Airlines Logo
9:17 a.m. - 3:46 p.m.STL-YYZ
5h 29m1 stop
C$ 635United Airlines
Find Deal
Thu, 11 Sep - Tue, 16 Sep
WestJet Logo
6:07 p.m. - 11:14 p.m.YYZ-STL
6h 07m1 stop
WestJet Logo
6:00 a.m. - 6:04 p.m.STL-YYZ
11h 04m2 stops
C$ 655WestJet
Find Deal
Mon, 18 Aug - Thu, 21 Aug
Delta Logo
6:49 p.m. - 8:06 a.m.YYZ-STL
14h 17m1 stop
Delta Logo
12:29 p.m. - 11:47 p.m.STL-YYZ
10h 18m1 stop
C$ 668Delta
Find Deal
Wed, 20 Aug - Wed, 10 Sep
WestJet Logo
8:00 p.m. - 9:15 a.m.YYZ-STL
14h 15m2 stops
WestJet Logo
6:40 a.m. - 5:23 p.m.STL-YYZ
9h 43m1 stop
C$ 677WestJet
Find Deal
Tue, 9 Sep - Thu, 11 Sep

Air Canada flights from Toronto Pearson Intl Airport to St. Louis

Our best Air Canada deals on Toronto Pearson Intl Airport to St. Louis flight tickets
Air Canada
12 Sep
YYZ2:15 p.m.Toronto Pearson Intl
2h 03m
STL3:18 p.m.Lambert-St Louis
14 Sep
STL4:05 p.m.Lambert-St Louis
1h 55m
YYZ7:00 p.m.Toronto Pearson Intl
C$ 487
Find similar
Air Canada
12 Sep
YYZ2:15 p.m.Toronto Pearson Intl
2h 03m
STL3:18 p.m.Lambert-St Louis
14 Sep
STL1:30 p.m.Lambert-St Louis
7h 09m
1 stop
YYZ9:39 p.m.Toronto Pearson Intl
C$ 494
Find similar
Air Canada
8 Nov
YYZ2:00 p.m.Toronto Pearson Intl
2h 29m
STL3:29 p.m.Lambert-St Louis
15 Nov
STL4:05 p.m.Lambert-St Louis
2h 01m
YYZ7:06 p.m.Toronto Pearson Intl
C$ 511
Find similar

American Airlines flights from Toronto Pearson Intl Airport to St. Louis

Our best American Airlines deals on Toronto Pearson Intl Airport to St. Louis flight tickets
American Airlines
8 Nov
YYZ4:44 p.m.Toronto Pearson Intl
8h 12m
1 stop
STL11:56 p.m.Lambert-St Louis
15 Nov
STL6:00 a.m.Lambert-St Louis
9h 04m
1 stop
YYZ4:04 p.m.Toronto Pearson Intl
C$ 444
Find similar
American Airlines
5 Sep
YYZ3:11 p.m.Toronto Pearson Intl
21h 19m
1 stop
STL11:30 a.m.Lambert-St Louis
8 Sep
STL7:59 p.m.Lambert-St Louis
15h 33m
1 stop
YYZ12:32 p.m.Toronto Pearson Intl
C$ 490
Find similar
American Airlines
9 Sep
YYZ1:15 p.m.Toronto Pearson Intl
8h 17m
1 stop
STL8:32 p.m.Lambert-St Louis
11 Sep
STL6:05 a.m.Lambert-St Louis
7h 26m
1 stop
YYZ2:31 p.m.Toronto Pearson Intl
C$ 501
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Toronto Pearson Intl Airport to St. Louis that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 96,600 searches. Data last updated 31 July 2025.
Use the filters below to find and compare flights from Toronto Pearson Intl Airport to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Sat 8/11

4:44 p.m.-11:56 p.m.

1 stop8h 12m

Lambert-St Louis

Sat 15/11

6:00 a.m.-4:04 p.m.

1 stop9h 04m

C$ 444

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Fri 12/9

2:15 p.m.-3:18 p.m.

Nonstop2h 03m

Lambert-St Louis

Sun 14/9

4:05 p.m.-7:00 p.m.

Nonstop1h 55m

C$ 487

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Mon 8/9

6:04 a.m.-4:49 p.m.

1 stop11h 45m

Lambert-St Louis

Thu 11/9

6:05 a.m.-4:08 p.m.

1 stop9h 03m

C$ 563

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Sun 7/9

6:45 a.m.-11:59 p.m.

2 stops18h 14m

Lambert-St Louis

Thu 11/9

10:35 a.m.-8:55 p.m.

1 stop9h 20m

C$ 577

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Sun 7/9

6:45 a.m.-11:59 p.m.

2 stops18h 14m

Lambert-St Louis

Thu 11/9

10:35 a.m.-8:55 p.m.

1 stop9h 20m

C$ 596

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Tue 26/8

12:45 p.m.-9:32 p.m.

2 stops9h 47m

Lambert-St Louis

Tue 2/9

7:04 p.m.-9:58 a.m.

1 stop13h 54m

C$ 634

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Thu 11/9

7:00 a.m.-8:46 p.m.

3 stops14h 46m

Lambert-St Louis

Tue 16/9

9:17 a.m.-3:46 p.m.

1 stop5h 29m

C$ 635

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Mon 18/8

6:07 p.m.-11:14 p.m.

1 stop6h 07m

Lambert-St Louis

Thu 21/8

6:00 a.m.-6:04 p.m.

2 stops11h 04m

C$ 655

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Wed 20/8

6:49 p.m.-8:06 a.m.

1 stop14h 17m

Lambert-St Louis

Wed 10/9

12:29 p.m.-11:47 p.m.

1 stop10h 18m

C$ 668

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Tue 9/9

8:00 p.m.-9:15 a.m.

2 stops14h 15m

Lambert-St Louis

Thu 11/9

6:40 a.m.-5:23 p.m.

1 stop9h 43m

C$ 677

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to St. Louis from

How to get the cheapest flight ticket from Toronto Pearson Intl Airport to St. Louis

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to St. Louis?

The month of June is, on average, the cheapest month to fly to St. Louis from Toronto Pearson Intl Airport, with most prices found around C$ 551. If you don’t want to visit St. Louis in June, then you should wait until May to fly from Toronto Pearson Intl Airport, when ticket prices are also cheap, with an average price of C$ 555.

What is the cheapest day to depart on your flight to St. Louis?

Our data shows that Thursday is the least expensive day to fly to St. Louis. Tickets to fly out on this day can be as low as C$ 603. The most expensive day to fly to St. Louis is Sunday, with ticket prices averaging around C$ 772.

What is the cheapest time of day to depart on your flight to St. Louis?

The cheapest time of day to fly to St. Louis is in the morning when flights can be purchased for as low as C$ 542. If you have a flexible travel schedule, then try to avoid flying at noon when prices are C$ 694 on average. Flights to St. Louis from Toronto Pearson Intl Airport at noon are generally more expensive because this time of day is more convenient for travellers’ schedules.

What is the cheapest Toronto Pearson Intl to Lambert-St Louis flight route?

Fly from Toronto Pearson Intl to Lambert-St Louis for the best Toronto Pearson Intl - Lambert-St Louis flight prices

How far in advance should I book a flight to St. Louis?

You are more likely to see cheaper flights to St. Louis from Toronto Pearson Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to St. Louis for around C$ 674 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to St. Louis from Toronto Pearson Intl Airport for as low as C$ 498 on momondo.

What cabin class options are available on Toronto Pearson Intl to Lambert-St Louis flights?

There are 1 cabin classes available to choose from on Toronto Pearson Intl to Lambert-St Louis flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Toronto Pearson Intl Airport to St. Louis flights?

You could potentially save up to 9% on your flight if you consider stops on a Toronto Pearson Intl Airport to St. Louis flight.

How have Toronto Pearson Intl Airport to St. Louis flight prices changed over time?

As of July 2025, prices for Toronto Pearson Intl Airport to St. Louis flights are approximately 18% cheaper when compared to flights at the same time last year.

When to book flights from Toronto Pearson Intl Airport to St. Louis

Are you open to changing your travel dates? Check out the ideal times to fly from Toronto Pearson Intl Airport to St. Louis according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Toronto Pearson Intl Airport to St. Louis (YYZ to STL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Toronto Pearson Intl Airport to St. Louis

Best price found

C$ 241

Fastest flight time

2h 03m

Direct flights

Every day

Airports in St. Louis

1 airport
The best one-way flight to St. Louis from Toronto Pearson Intl Airport in the past 72 hours is C$ 241. The best round-trip flight deal from Toronto Pearson Intl Airport to St. Louis found on momondo in the last 72 hours is C$ 444.
The fastest flight from Toronto Pearson Intl Airport to St. Louis takes 2h 03m
Direct flights go from Toronto Pearson Intl Airport to St. Louis every day.
There is 1 airport near St. Louis: Lambert-St Louis (STL)
Search flight deals

  • How far is Toronto Pearson Intl to Lambert-St Louis by plane?

    The distance between Toronto Pearson Intl and Lambert-St Louis is about 1047.0 km. Typically, this will take 2h 03m by plane in normal conditions.

  • When did momondo last update prices for flights from Toronto Pearson Intl Airport to Lambert-St Louis Airport?

    Prices for flights from Toronto Pearson Intl Airport to Lambert-St Louis Airport are updated daily.

  • How many operators does momondo search for flights from Toronto Pearson Intl Airport to Lambert-St Louis Airport?

  • How old do you have to be to fly from Toronto Pearson Intl Airport to Lambert-St Louis Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Toronto Pearson Intl Airport to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The travel and health documents required for your trip to Lambert-St Louis Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Lambert-St Louis Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Toronto Pearson Intl Airport to St. Louis?

  • What is the most popular airline from Toronto Pearson Intl Airport to St. Louis?

Best airlines flying from Toronto Pearson Intl Airport to St. Louis

Compare and see reviews for airlines that fly from Toronto Pearson Intl Airport to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
Air CanadaPriceFrom C$ 472Free CancellationRating
7.1
9,851 reviews
Search Air Canada flights
DeltaPriceFrom C$ 475Free CancellationRating
8.0
7,981 reviews
Search Delta flights
United AirlinesPriceFrom C$ 480Free CancellationRating
7.4
8,900 reviews
Search United Airlines flights
WestJetPriceFrom C$ 558Free CancellationRating
7.2
2,978 reviews
Search WestJet flights

  • United Airlines Flights From Toronto Pearson Intl Airport to St. Louis

    United Airlines operates around 9 flights from Toronto Pearson Intl Airport to St. Louis every week. The average price of these flights found in the last 72 hours has been C$ 489, but momondo users have found United Airlines deals from Toronto Pearson Intl Airport to St. Louis from as low as C$ 347 round-trip. United Airlines has been scored 7.4/10 in 8,900 reviews.

  • Air Canada Flights From Toronto Pearson Intl Airport to St. Louis

    C$ 341 is the best Air Canada flight deal from Toronto Pearson Intl Airport to St. Louis found on momondo over the last 72 hours. The average Air Canada ticket price found was closer to C$ 491, however, with flight time and availability significantly affecting the price. Air Canada (7.1/10 from 9,851 user reviews) flies into St. Louis from Toronto Pearson Intl Airport 9 times in an average week so prices can vary.

Travelling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Edwardsville
Chesterfield
Collinsville
Litchfield

Why use momondo?

Why should I use momondo to find a flight deal from Toronto to St. Louis?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to St. Louis from Toronto.

Can I find flights from Toronto to St. Louis with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to St. Louis from Toronto with this policy.

How can momondo help me find flights from Toronto to St. Louis?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to St. Louis from Toronto.

I’m not ready to book a flight from Toronto to St. Louis right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to St. Louis from Toronto. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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