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Cheap flights from St. Louis to Toronto from C$ 196

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. - 2:32 p.m.STL  Lambert-St Louis-YYZ Toronto Pearson Intl
8h 32m1 stop Chicago O'Hare Intl
American Airlines Logo
11:40 a.m. - 8:44 p.m.YYZ  Toronto Pearson Intl-STL Lambert-St Louis
10h 04m1 stop Chicago O'Hare Intl
C$ 506American Airlines
Wed, 16 Sep - Wed, 23 Sep
American Airlines Logo
1:49 p.m. - 11:26 p.m.STL  Lambert-St Louis-YYZ Toronto Pearson Intl
8h 37m1 stop Chicago O'Hare Intl
American Airlines Logo
1:15 p.m. - 12:27 a.m.YYZ  Toronto Pearson Intl-STL Lambert-St Louis
12h 12m1 stop Chicago O'Hare Intl
C$ 506American Airlines
Sat, 19 Sep - Mon, 21 Sep
American Airlines Logo
7:21 a.m. - 6:35 p.m.STL  Lambert-St Louis-YYZ Toronto Pearson Intl
10h 14m1 stop Chicago O'Hare Intl
American Airlines Logo
1:15 p.m. - 12:27 a.m.YYZ  Toronto Pearson Intl-STL Lambert-St Louis
12h 12m1 stop Chicago O'Hare Intl
C$ 506American Airlines
Wed, 16 Sep - Mon, 21 Sep
American Airlines Logo
7:21 a.m. - 6:35 p.m.STL  Lambert-St Louis-YYZ Toronto Pearson Intl
10h 14m1 stop Chicago O'Hare Intl
American Airlines Logo
1:15 p.m. - 12:27 a.m.YYZ  Toronto Pearson Intl-STL Lambert-St Louis
12h 12m1 stop Chicago O'Hare Intl
C$ 508American Airlines
Wed, 16 Sep - Mon, 21 Sep
American Airlines Logo
5:00 a.m. - 2:32 p.m.STL  Lambert-St Louis-YYZ Toronto Pearson Intl
8h 32m1 stop Chicago O'Hare Intl
American Airlines Logo
3:13 p.m. - 12:27 a.m.YYZ  Toronto Pearson Intl-STL Lambert-St Louis
10h 14m1 stop Chicago O'Hare Intl
C$ 508American Airlines
Thu, 24 Sep - Mon, 28 Sep
American Airlines Logo
7:27 a.m. - 5:44 p.m.STL  Lambert-St Louis-YYZ Toronto Pearson Intl
9h 17m1 stop Chicago O'Hare Intl
American Airlines Logo
6:30 a.m. - 8:44 p.m.YYZ  Toronto Pearson Intl-STL Lambert-St Louis
15h 14m1 stop Chicago O'Hare Intl
C$ 508American Airlines
Thu, 24 Sep - Sat, 26 Sep
American Airlines Logo
7:21 a.m. - 6:35 p.m.STL  Lambert-St Louis-YYZ Toronto Pearson Intl
10h 14m1 stop Chicago O'Hare Intl
American Airlines Logo
6:30 a.m. - 1:16 p.m.YYZ  Toronto Pearson Intl-STL Lambert-St Louis
7h 46m1 stop Chicago O'Hare Intl
C$ 508American Airlines
Mon, 21 Sep - Mon, 28 Sep
American Airlines Logo
5:00 a.m. - 2:32 p.m.STL  Lambert-St Louis-YYZ Toronto Pearson Intl
8h 32m1 stop Chicago O'Hare Intl
American Airlines Logo
6:30 a.m. - 1:16 p.m.YYZ  Toronto Pearson Intl-STL Lambert-St Louis
7h 46m1 stop Chicago O'Hare Intl
C$ 516American Airlines
Tue, 22 Sep - Tue, 29 Sep
Air Canada Logo
8:55 a.m. - 11:49 a.m.STL  Lambert-St Louis-YYZ Toronto Pearson Intl
1h 54mdirect
Air Canada Logo
12:55 p.m. - 2:00 p.m.YYZ  Toronto Pearson Intl-STL Lambert-St Louis
2h 05mdirect
C$ 856Air Canada
Thu, 17 Sep - Sun, 20 Sep
Air Canada Logo
2:40 p.m. - 5:34 p.m.STL  Lambert-St Louis-YYZ Toronto Pearson Intl
1h 54mdirect
Air Canada Logo
12:55 p.m. - 2:00 p.m.YYZ  Toronto Pearson Intl-STL Lambert-St Louis
2h 05mdirect
C$ 867Air Canada
Sun, 27 Sep - Wed, 30 Sep

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WestJet flights from St. Louis to Toronto Pearson Intl Airport

Our best WestJet deals on St. Louis to Toronto Pearson Intl Airport flight tickets
WestJet
10 Sep
STL10:40 a.m.Lambert-St Louis
5h 38m
1 stop
YYZ5:18 p.m.Toronto Pearson Intl
10 Sep
YYZ8:00 p.m.Toronto Pearson Intl
14h 34m
2 stops
STL9:34 a.m.Lambert-St Louis
C$ 699
WestJet
10 Sep
STL4:10 p.m.Lambert-St Louis
24h 10m
1 stop
YYZ5:20 p.m.Toronto Pearson Intl
11 Sep
YYZ8:00 p.m.Toronto Pearson Intl
17h 32m
2 stops
STL12:32 p.m.Lambert-St Louis
C$ 863
WestJet
10 Sep
STL10:29 a.m.Lambert-St Louis
3h 46m
1 stop
YYZ3:15 p.m.Toronto Pearson Intl
10 Sep
YYZ7:24 p.m.Toronto Pearson Intl
4h 52m
1 stop
STL11:16 p.m.Lambert-St Louis
C$ 871

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
3 Sep
STL7:25 a.m.Lambert-St Louis
5h 17m
1 stop
YYZ1:42 p.m.Toronto Pearson Intl
3 Dec
YYZ2:10 p.m.Toronto Pearson Intl
2h 16m
STL3:26 p.m.Lambert-St Louis
C$ 1,229
Air Canada
10 Sep
STL8:55 a.m.Lambert-St Louis
1h 54m
YYZ11:49 a.m.Toronto Pearson Intl
11 Sep
YYZ7:15 p.m.Toronto Pearson Intl
2h 05m
STL8:20 p.m.Lambert-St Louis
C$ 1,232
Air Canada
10 Sep
STL8:55 a.m.Lambert-St Louis
1h 54m
YYZ11:49 a.m.Toronto Pearson Intl
11 Sep
YYZ2:00 p.m.Toronto Pearson Intl
5h 41m
1 stop
STL6:41 p.m.Lambert-St Louis
C$ 1,244

momondo Fare Finder

 
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 Lambert-St Louis - YYZ Toronto Pearson Intl

STLYYZ

Lambert-St Louis

Wed 16/9

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

1 stop8h 32m

Toronto Pearson Intl

Wed 23/9

11:40 a.m.-8:44 p.m.

1 stop10h 04m

C$ 506

St. LouisToronto

STL Lambert-St Louis - YYZ Toronto Pearson Intl

STLYYZ

Lambert-St Louis

Sat 19/9

1:49 p.m.-11:26 p.m.

1 stop8h 37m

Toronto Pearson Intl

Mon 21/9

1:15 p.m.-12:27 a.m.

1 stop12h 12m

C$ 506

St. LouisToronto

STL Lambert-St Louis - YYZ Toronto Pearson Intl

STLYYZ

Lambert-St Louis

Wed 16/9

7:21 a.m.-6:35 p.m.

1 stop10h 14m

Toronto Pearson Intl

Mon 21/9

1:15 p.m.-12:27 a.m.

1 stop12h 12m

C$ 506

St. LouisToronto

STL Lambert-St Louis - YYZ Toronto Pearson Intl

STLYYZ

Lambert-St Louis

Wed 16/9

7:21 a.m.-6:35 p.m.

1 stop10h 14m

Toronto Pearson Intl

Mon 21/9

1:15 p.m.-12:27 a.m.

1 stop12h 12m

C$ 508

St. LouisToronto

STL Lambert-St Louis - YYZ Toronto Pearson Intl

STLYYZ

Lambert-St Louis

Thu 24/9

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

1 stop8h 32m

Toronto Pearson Intl

Mon 28/9

3:13 p.m.-12:27 a.m.

1 stop10h 14m

C$ 508

St. LouisToronto

STL Lambert-St Louis - YYZ Toronto Pearson Intl

STLYYZ

Lambert-St Louis

Thu 24/9

7:27 a.m.-5:44 p.m.

1 stop9h 17m

Toronto Pearson Intl

Sat 26/9

6:30 a.m.-8:44 p.m.

1 stop15h 14m

C$ 508

St. LouisToronto

STL Lambert-St Louis - YYZ Toronto Pearson Intl

STLYYZ

Lambert-St Louis

Mon 21/9

7:21 a.m.-6:35 p.m.

1 stop10h 14m

Toronto Pearson Intl

Mon 28/9

6:30 a.m.-1:16 p.m.

1 stop7h 46m

C$ 508

St. LouisToronto

STL Lambert-St Louis - YYZ Toronto Pearson Intl

STLYYZ

Lambert-St Louis

Tue 22/9

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

1 stop8h 32m

Toronto Pearson Intl

Tue 29/9

6:30 a.m.-1:16 p.m.

1 stop7h 46m

C$ 516
Quickest round-trip

St. LouisToronto

STL Lambert-St Louis - YYZ Toronto Pearson Intl

STLYYZ

Lambert-St Louis

Thu 17/9

8:55 a.m.-11:49 a.m.

Nonstop1h 54m

Toronto Pearson Intl

Sun 20/9

12:55 p.m.-2:00 p.m.

Nonstop2h 05m

C$ 856

St. LouisToronto

STL Lambert-St Louis - YYZ Toronto Pearson Intl

STLYYZ

Lambert-St Louis

Sun 27/9

2:40 p.m.-5:34 p.m.

Nonstop1h 54m

Toronto Pearson Intl

Wed 30/9

12:55 p.m.-2:00 p.m.

Nonstop2h 05m

C$ 867

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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?

Prices are currently low for flights on this route.

Typical prices usually range from C$ 795 to C$ 1,028.
The lowest price recently found on this route was C$ 506.

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$ 669.

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$ 328. 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$ 1,022.

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 morning. Our users have found flights to Toronto Pearson Intl Airport in the morning for as low as C$ 470. If you have a flexible travel schedule, then try to avoid flying at noon when prices are C$ 795 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 23% 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 August 2026, prices for St. Louis to Toronto Pearson Intl Airport flights are approximately 39% more expensive 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$ 196

Fastest flight time

1h 54m

Direct flights

Every day
The best one-way flight to Toronto Pearson Intl Airport from St. Louis in the past 72 hours is C$ 196. The best round-trip flight deal from St. Louis to Toronto Pearson Intl Airport found on momondo in the last 72 hours is C$ 506.
The fastest flight from St. Louis to Toronto Pearson Intl Airport takes 1h 54m
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 54m.

  • 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$ 328Free CancellationRating
7.1
11,551 reviews
Search Air Canada flights

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

    Air Canada operates around 11 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$ 731, but momondo users have found Air Canada deals from St. Louis to Toronto Pearson Intl Airport from as low as C$ 328 round-trip. Air Canada has been scored 7.1/10 in 11,551 reviews.

Travelling to a place near Toronto?

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

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.

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