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Cheap flights from St. Louis to Toronto from C$ 222

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.
Multiple Airlines Logo
6:13 p.m. - 1:40 p.m.STL  Lambert-St Louis-YYZ Toronto Pearson Intl
18h 27m1 stop Orlando
Multiple Airlines Logo
6:30 a.m. - 12:12 a.m.YYZ  Toronto Pearson Intl-STL Lambert-St Louis
18h 42m1 stop Orlando
C$ 623Multiple Airlines
Thu, 3 Dec - Thu, 10 Dec
Multiple Airlines Logo
6:34 p.m. - 10:46 p.m.STL  Lambert-St Louis-YYZ Toronto Pearson Intl
27h 12m2 stops Atlanta Hartsfield-Jackson New York LaGuardia
Multiple Airlines Logo
6:30 a.m. - 11:59 p.m.YYZ  Toronto Pearson Intl-STL Lambert-St Louis
18h 29m1 stop Orlando
C$ 629Multiple Airlines
Mon, 16 Nov - Mon, 23 Nov
Multiple Airlines Logo
12:14 p.m. - 11:20 p.m.STL  Lambert-St Louis-YYZ Toronto Pearson Intl
34h 06m2 stops Dallas/Fort Worth Fort Lauderdale
Multiple Airlines Logo
6:30 a.m. - 12:25 p.m.YYZ  Toronto Pearson Intl-STL Lambert-St Louis
30h 55m1 stop Orlando
C$ 659Multiple Airlines
Fri, 13 Nov - Fri, 20 Nov
Multiple Airlines Logo
6:34 p.m. - 5:10 p.m.STL  Lambert-St Louis-YYZ Toronto Pearson Intl
21h 36m2 stops Atlanta Hartsfield-Jackson Fort Lauderdale
Multiple Airlines Logo
6:30 a.m. - 5:42 p.m.YYZ  Toronto Pearson Intl-STL Lambert-St Louis
12h 12m2 stops Orlando Atlanta Hartsfield-Jackson
C$ 670Multiple Airlines
Mon, 9 Nov - Fri, 13 Nov
Multiple Airlines Logo
6:34 p.m. - 5:10 p.m.STL  Lambert-St Louis-YYZ Toronto Pearson Intl
21h 36m2 stops Atlanta Hartsfield-Jackson Fort Lauderdale
Multiple Airlines Logo
6:30 a.m. - 11:16 p.m.YYZ  Toronto Pearson Intl-STL Lambert-St Louis
17h 46m1 stop Orlando
C$ 674Multiple Airlines
Mon, 9 Nov - Fri, 13 Nov
Multiple Airlines Logo
6:34 p.m. - 5:10 p.m.STL  Lambert-St Louis-YYZ Toronto Pearson Intl
21h 36m2 stops Atlanta Hartsfield-Jackson Fort Lauderdale
Multiple Airlines Logo
9:15 a.m. - 11:16 p.m.YYZ  Toronto Pearson Intl-STL Lambert-St Louis
39h 01m3 stops Tampa Atlanta Hartsfield-Jackson Orlando
C$ 680Multiple Airlines
Mon, 9 Nov - Fri, 13 Nov
Multiple Airlines Logo
4:26 p.m. - 3:18 p.m.STL  Lambert-St Louis-YYZ Toronto Pearson Intl
21h 52m1 stop Orlando
Multiple Airlines Logo
6:30 a.m. - 11:16 p.m.YYZ  Toronto Pearson Intl-STL Lambert-St Louis
17h 46m1 stop Orlando
C$ 686Multiple Airlines
Mon, 2 Nov - Mon, 9 Nov
Multiple Airlines Logo
6:20 p.m. - 1:40 p.m.STL  Lambert-St Louis-YYZ Toronto Pearson Intl
18h 20m1 stop Orlando
Multiple Airlines Logo
6:30 a.m. - 12:12 a.m.YYZ  Toronto Pearson Intl-STL Lambert-St Louis
18h 42m1 stop Orlando
C$ 686Multiple Airlines
Fri, 11 Dec - Sun, 13 Dec
Air Canada Logo
4:05 p.m. - 7:05 p.m.STL  Lambert-St Louis-YYZ Toronto Pearson Intl
2h 00mdirect
Air Canada Logo
2:10 p.m. - 3:26 p.m.YYZ  Toronto Pearson Intl-STL Lambert-St Louis
2h 16mdirect
C$ 944Air Canada
Fri, 6 Nov - Sun, 8 Nov
Air Canada Logo
4:05 p.m. - 7:05 p.m.STL  Lambert-St Louis-YYZ Toronto Pearson Intl
2h 00mdirect
Air Canada Logo
2:10 p.m. - 3:26 p.m.YYZ  Toronto Pearson Intl-STL Lambert-St Louis
2h 16mdirect
C$ 1,139Air Canada
Fri, 11 Dec - Sun, 13 Dec

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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
6 Nov
STL7:26 a.m.Lambert-St Louis
9h 15m
1 stop
YYZ5:41 p.m.Toronto Pearson Intl
11 Nov
YYZ11:36 a.m.Toronto Pearson Intl
8h 46m
1 stop
STL7:22 p.m.Lambert-St Louis
C$ 700
American Airlines
14 Nov
STL1:20 p.m.Lambert-St Louis
9h 26m
1 stop
YYZ11:46 p.m.Toronto Pearson Intl
16 Nov
YYZ12:44 p.m.Toronto Pearson Intl
9h 54m
1 stop
STL9:38 p.m.Lambert-St Louis
C$ 793
American Airlines
11 Nov
STL7:26 a.m.Lambert-St Louis
9h 15m
1 stop
YYZ5:41 p.m.Toronto Pearson Intl
13 Nov
YYZ3:15 p.m.Toronto Pearson Intl
9h 44m
1 stop
STL11:59 p.m.Lambert-St Louis
C$ 806

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

Thu 3/12

6:13 p.m.-1:40 p.m.

1 stop18h 27m

Toronto Pearson Intl

Thu 10/12

6:30 a.m.-12:12 a.m.

1 stop18h 42m

C$ 623

St. LouisToronto

STL Lambert-St Louis - YYZ Toronto Pearson Intl

STLYYZ

Lambert-St Louis

Mon 16/11

6:34 p.m.-10:46 p.m.

2 stops27h 12m

Toronto Pearson Intl

Mon 23/11

6:30 a.m.-11:59 p.m.

1 stop18h 29m

C$ 629

St. LouisToronto

STL Lambert-St Louis - YYZ Toronto Pearson Intl

STLYYZ

Lambert-St Louis

Fri 13/11

12:14 p.m.-11:20 p.m.

2 stops34h 06m

Toronto Pearson Intl

Fri 20/11

6:30 a.m.-12:25 p.m.

1 stop30h 55m

C$ 659

St. LouisToronto

STL Lambert-St Louis - YYZ Toronto Pearson Intl

STLYYZ

Lambert-St Louis

Mon 9/11

6:34 p.m.-5:10 p.m.

2 stops21h 36m

Toronto Pearson Intl

Fri 13/11

6:30 a.m.-5:42 p.m.

2 stops12h 12m

C$ 670

St. LouisToronto

STL Lambert-St Louis - YYZ Toronto Pearson Intl

STLYYZ

Lambert-St Louis

Mon 9/11

6:34 p.m.-5:10 p.m.

2 stops21h 36m

Toronto Pearson Intl

Fri 13/11

6:30 a.m.-11:16 p.m.

1 stop17h 46m

C$ 674

St. LouisToronto

STL Lambert-St Louis - YYZ Toronto Pearson Intl

STLYYZ

Lambert-St Louis

Mon 9/11

6:34 p.m.-5:10 p.m.

2 stops21h 36m

Toronto Pearson Intl

Fri 13/11

9:15 a.m.-11:16 p.m.

3 stops39h 01m

C$ 680

St. LouisToronto

STL Lambert-St Louis - YYZ Toronto Pearson Intl

STLYYZ

Lambert-St Louis

Mon 2/11

4:26 p.m.-3:18 p.m.

1 stop21h 52m

Toronto Pearson Intl

Mon 9/11

6:30 a.m.-11:16 p.m.

1 stop17h 46m

C$ 686

St. LouisToronto

STL Lambert-St Louis - YYZ Toronto Pearson Intl

STLYYZ

Lambert-St Louis

Fri 11/12

6:20 p.m.-1:40 p.m.

1 stop18h 20m

Toronto Pearson Intl

Sun 13/12

6:30 a.m.-12:12 a.m.

1 stop18h 42m

C$ 686
Quickest round-trip

St. LouisToronto

STL Lambert-St Louis - YYZ Toronto Pearson Intl

STLYYZ

Lambert-St Louis

Fri 6/11

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

Nonstop2h 00m

Toronto Pearson Intl

Sun 8/11

2:10 p.m.-3:26 p.m.

Nonstop2h 16m

C$ 944

St. LouisToronto

STL Lambert-St Louis - YYZ Toronto Pearson Intl

STLYYZ

Lambert-St Louis

Fri 11/12

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

Nonstop2h 00m

Toronto Pearson Intl

Sun 13/12

2:10 p.m.-3:26 p.m.

Nonstop2h 16m

C$ 1,139

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?

Prices are currently low for flights on this route.

Typical prices usually range from C$ 811 to C$ 1,310.
The lowest price recently found on this route was C$ 623.

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$ 681.

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$ 335. 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$ 1,041.

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$ 349. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are C$ 779 on average. Flights to Toronto Pearson Intl Airport from St. Louis in the morning 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?

No. A direct flight is the cheapest option for a flight between St. Louis to Toronto Pearson Intl Airport.

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

As of October 2026, prices for St. Louis to Toronto Pearson Intl Airport flights are approximately 81% 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$ 222

Fastest flight time

1h 54m

Direct flights

Mon, Tue, Thu, Fri, Sat and Sun
The best one-way flight to Toronto Pearson Intl Airport from St. Louis in the past 72 hours is C$ 222. The best round-trip flight deal from St. Louis to Toronto Pearson Intl Airport found on momondo in the last 72 hours is C$ 623.
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 on Monday, Tuesday, Thursday, Friday, Saturday and Sunday. There are no airlines offering direct flights.
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$ 335Free CancellationRating
7.1
11,782 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$ 745, 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 11,782 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
Markham
Oshawa
Vaughan
Guelph
Barrie
Kitchener
Niagara-on-the-Lake
Waterloo
Oakville
Cambridge
Burlington
Peterborough
Orillia
Richmond Hill
Pickering
Brantford

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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