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Cheap flights from St. Louis to Toronto from C$ 213

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Toronto departing on 3/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from St. Louis to Toronto

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
5:00 a.m. - 5:44 p.m.
STL
-
YYZ
11h 44m
1 stop
American Airlines Logo
1:15 p.m. - 8:44 p.m.
YYZ
-
STL
8h 29m
1 stop
C$ 507American Airlines
Sat, 12 Sep - Sat, 19 Sep
American Airlines Logo
6:55 a.m. - 5:34 p.m.
STL
-
YYZ
9h 39m
1 stop
American Airlines Logo
7:17 a.m. - 4:40 p.m.
YYZ
-
STL
10h 23m
1 stop
C$ 521American Airlines
Tue, 14 Jul - Tue, 21 Jul
American Airlines Logo
6:55 a.m. - 5:34 p.m.
STL
-
YYZ
9h 39m
1 stop
American Airlines Logo
1:17 p.m. - 12:16 a.m.
YYZ
-
STL
11h 59m
1 stop
C$ 531American Airlines
Tue, 21 Jul - Tue, 28 Jul
American Airlines Logo
9:32 a.m. - 6:30 p.m.
STL
-
YYZ
7h 58m
1 stop
American Airlines Logo
6:30 a.m. - 4:48 p.m.
YYZ
-
STL
11h 18m
1 stop
C$ 558American Airlines
Tue, 8 Sep - Sat, 12 Sep
Multiple Airlines Logo
10:35 a.m. - 1:40 p.m.
STL
-
YYZ
26h 05m
2 stops
Multiple Airlines Logo
6:30 a.m. - 7:39 p.m.
YYZ
-
STL
14h 09m
1 stop
C$ 565Multiple Airlines
Sun, 25 Oct - Thu, 29 Oct
American Airlines Logo
5:00 a.m. - 2:32 p.m.
STL
-
YYZ
8h 32m
1 stop
American Airlines Logo
4:44 p.m. - 11:58 p.m.
YYZ
-
STL
8h 14m
1 stop
C$ 587American Airlines
Sat, 3 Oct - Wed, 2 Dec
American Airlines Logo
6:55 a.m. - 5:34 p.m.
STL
-
YYZ
9h 39m
1 stop
American Airlines Logo
11:39 a.m. - 7:27 p.m.
YYZ
-
STL
8h 48m
1 stop
C$ 595American Airlines
Tue, 4 Aug - Tue, 18 Aug
Multiple Airlines Logo
8:08 p.m. - 10:45 p.m.
STL
-
YYZ
25h 37m
2 stops
Multiple Airlines Logo
8:35 p.m. - 5:50 p.m.
YYZ
-
STL
22h 15m
1 stop
C$ 599Multiple Airlines
Tue, 4 Aug - Tue, 18 Aug
Multiple Airlines Logo
10:35 a.m. - 7:05 p.m.
STL
-
YYZ
31h 30m
2 stops
Multiple Airlines Logo
6:30 a.m. - 7:39 p.m.
YYZ
-
STL
14h 09m
1 stop
C$ 601Multiple Airlines
Sat, 24 Oct - Thu, 29 Oct
Multiple Airlines Logo
8:08 p.m. - 10:45 p.m.
STL
-
YYZ
25h 37m
2 stops
Multiple Airlines Logo
7:00 a.m. - 6:05 p.m.
YYZ
-
STL
12h 05m
1 stop
C$ 602Multiple Airlines
Tue, 14 Jul - Tue, 21 Jul

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

Our best Air Canada deals on St. Louis to Toronto Pearson Intl Airport flight tickets
Air Canada
16 Oct
STL8:55 a.m.Lambert-St Louis
1h 54m
YYZ11:49 a.m.Toronto Pearson Intl
19 Oct
YYZ12:55 p.m.Toronto Pearson Intl
2h 05m
STL2:00 p.m.Lambert-St Louis
C$ 689
Air Canada
16 Oct
STL12:10 p.m.Lambert-St Louis
6h 43m
1 stop
YYZ7:53 p.m.Toronto Pearson Intl
19 Oct
YYZ12:55 p.m.Toronto Pearson Intl
2h 05m
STL2:00 p.m.Lambert-St Louis
C$ 700
Air Canada
16 Oct
STL12:10 p.m.Lambert-St Louis
6h 43m
1 stop
YYZ7:53 p.m.Toronto Pearson Intl
19 Oct
YYZ12:00 p.m.Toronto Pearson Intl
7h 41m
1 stop
STL6:41 p.m.Lambert-St Louis
C$ 708

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

Our best American Airlines deals on St. Louis to Toronto Pearson Intl Airport flight tickets
American Airlines
12 Sep
STL5:00 a.m.Lambert-St Louis
11h 44m
1 stop
YYZ5:44 p.m.Toronto Pearson Intl
19 Sep
YYZ1:15 p.m.Toronto Pearson Intl
8h 29m
1 stop
STL8:44 p.m.Lambert-St Louis
C$ 507
American Airlines
14 Jul
STL6:55 a.m.Lambert-St Louis
9h 39m
1 stop
YYZ5:34 p.m.Toronto Pearson Intl
21 Jul
YYZ7:17 a.m.Toronto Pearson Intl
10h 23m
1 stop
STL4:40 p.m.Lambert-St Louis
C$ 521
American Airlines
21 Jul
STL6:55 a.m.Lambert-St Louis
9h 39m
1 stop
YYZ5:34 p.m.Toronto Pearson Intl
28 Jul
YYZ1:17 p.m.Toronto Pearson Intl
11h 59m
1 stop
STL12:16 a.m.Lambert-St Louis
C$ 531

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Toronto Pearson Intl Airport 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 23 June 2026.
Use the filters below to find and compare flights from St. Louis to Toronto Pearson Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Sat 12/9

5:00 a.m.-5:44 p.m.

1 stop11h 44m

Toronto Pearson Intl

Sat 19/9

1:15 p.m.-8:44 p.m.

1 stop8h 29m

C$ 507

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Tue 14/7

6:55 a.m.-5:34 p.m.

1 stop9h 39m

Toronto Pearson Intl

Tue 21/7

7:17 a.m.-4:40 p.m.

1 stop10h 23m

C$ 521

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Tue 21/7

6:55 a.m.-5:34 p.m.

1 stop9h 39m

Toronto Pearson Intl

Tue 28/7

1:17 p.m.-12:16 a.m.

1 stop11h 59m

C$ 531

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Tue 8/9

9:32 a.m.-6:30 p.m.

1 stop7h 58m

Toronto Pearson Intl

Sat 12/9

6:30 a.m.-4:48 p.m.

1 stop11h 18m

C$ 558

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Sun 25/10

10:35 a.m.-1:40 p.m.

2 stops26h 05m

Toronto Pearson Intl

Thu 29/10

6:30 a.m.-7:39 p.m.

1 stop14h 09m

C$ 565
Quickest round-trip

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Sat 3/10

5:00 a.m.-2:32 p.m.

1 stop8h 32m

Toronto Pearson Intl

Wed 2/12

4:44 p.m.-11:58 p.m.

1 stop8h 14m

C$ 587

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Tue 4/8

6:55 a.m.-5:34 p.m.

1 stop9h 39m

Toronto Pearson Intl

Tue 18/8

11:39 a.m.-7:27 p.m.

1 stop8h 48m

C$ 595

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Tue 4/8

8:08 p.m.-10:45 p.m.

2 stops25h 37m

Toronto Pearson Intl

Tue 18/8

8:35 p.m.-5:50 p.m.

1 stop22h 15m

C$ 599

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Sat 24/10

10:35 a.m.-7:05 p.m.

2 stops31h 30m

Toronto Pearson Intl

Thu 29/10

6:30 a.m.-7:39 p.m.

1 stop14h 09m

C$ 601

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Tue 14/7

8:08 p.m.-10:45 p.m.

2 stops25h 37m

Toronto Pearson Intl

Tue 21/7

7:00 a.m.-6:05 p.m.

1 stop12h 05m

C$ 602

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 Toronto from

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

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 typical price of a round-trip flight between St. Louis and Toronto Pearson Intl Airport?

What is the cheapest month to fly to Toronto Pearson Intl Airport?

If you aren’t able to travel during the month of December, then book flights to Toronto Pearson Intl Airport from St. Louis during November instead. Flights to Toronto Pearson Intl Airport in November, while not as cheap as those in December, still average around C$ 683.

What is the cheapest day to depart on your flight to Toronto Pearson Intl Airport?

Our data shows that Saturday is the least expensive day to fly to Toronto Pearson Intl Airport. Tickets to fly out on this day can be as low as C$ 350. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from St. Louis to Toronto Pearson Intl Airport for around C$ 1,044.

What is the cheapest time of day to depart on your flight to Toronto Pearson Intl Airport?

Our data shows that the cheapest St. Louis to Toronto Pearson Intl Airport flights are usually those with departure times in the afternoon. Our users have found flights to Toronto Pearson Intl Airport in the afternoon for as low as C$ 660. If you have a flexible travel schedule, then try to avoid flying at noon when prices are C$ 812 on average. Flights to Toronto Pearson Intl Airport from St. Louis at noon are generally more expensive because this time of day is more convenient for travellers’ schedules.

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

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

What cabin class options are available on St. Louis to Toronto Pearson Intl Airport flights?

There is only 1 cabin class available to choose from on St. Louis to Toronto Pearson Intl Airport 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 St. Louis to Toronto Pearson Intl Airport flights?

You could potentially save up to 15% on your flight if you consider stops on a St. Louis to Toronto Pearson Intl Airport flight.

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

As of June 2026, prices for St. Louis to Toronto Pearson Intl Airport flights are approximately 15% cheaper when compared to flights at the same time last year.

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

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

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

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

Best price found

C$ 291

Fastest flight time

1h 51m

Direct flights

Every day
The best one-way flight to Toronto Pearson Intl Airport from St. Louis in the past 72 hours is C$ 291. The best round-trip flight deal from St. Louis to Toronto Pearson Intl Airport found on momondo in the last 72 hours is C$ 351.
The fastest flight from St. Louis to Toronto Pearson Intl Airport takes 1h 51m
Direct flights go from St. Louis to Toronto Pearson Intl Airport every day.
Search flight deals

Frequently asked questions about flying from St. Louis to Toronto Pearson Intl Airport

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

    Lambert-St Louis and Toronto Pearson Intl are 1047.0 km apart from one another. By plane, this route typically takes 1h 51m.

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

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

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Toronto Pearson Intl Airport.

  • What documentation or ID do you need to fly to Toronto Pearson Intl Airport?

    The necessary travel and health documents for your Toronto Pearson Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

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

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

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

Compare and see reviews for airlines that fly from St. Louis to Toronto Pearson Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
Air CanadaPriceFrom C$ 335Free CancellationRating
7.1
11,244 reviews
Search Air Canada flights

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

    Air Canada operates around 14 flights from St. Louis to Toronto Pearson Intl Airport every week. The average price of these flights found in the last 72 hours has been C$ 660, but momondo users have found Air Canada deals from St. Louis to Toronto Pearson Intl Airport from as low as C$ 335 round-trip. Air Canada has been scored 7.1/10 in 11,244 reviews.

Travelling to a place near Toronto?

Book flights to Toronto if you plan to visit one of these locations
Niagara Falls
Brampton
Mississauga
Collingwood
Oshawa
Markham
Vaughan
Guelph
Barrie
Kitchener
Niagara-on-the-Lake
Muskoka
Burlington
Waterloo
Cambridge
Oakville
Orillia
Peterborough
Pickering
Richmond Hill

Why use momondo?

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

It is quick and easy to find St. Louis to Toronto flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Toronto that suits you.

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

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

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

Once you have performed a search for St. Louis to Toronto flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Yes. momondo can track prices for St. Louis to Toronto flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your Toronto Pearson Intl Airport trip

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