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Cheap flights from St. Louis to Toronto from C$ 194

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 23/9. 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

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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
10:35 a.m. - 4:45 p.m.STL  Lambert-St Louis-YYZ Toronto Pearson Intl
29h 10m2 stops Atlanta Hartsfield-Jackson Orlando
Multiple Airlines Logo
5:15 p.m. - 7:39 p.m.YYZ  Toronto Pearson Intl-STL Lambert-St Louis
27h 24m1 stop Orlando
C$ 500Multiple Airlines
Mon, 19 Oct - Wed, 28 Oct
Multiple Airlines Logo
5:19 p.m. - 11:35 p.m.STL  Lambert-St Louis-YYZ Toronto Pearson Intl
29h 16m1 stop Orlando
Multiple Airlines Logo
7:30 a.m. - 1:10 p.m.YYZ  Toronto Pearson Intl-STL Lambert-St Louis
30h 40m2 stops Fort Lauderdale Atlanta Hartsfield-Jackson
C$ 513Multiple Airlines
Fri, 18 Sep - Sun, 27 Sep
Multiple Airlines Logo
5:19 p.m. - 11:35 p.m.STL  Lambert-St Louis-YYZ Toronto Pearson Intl
29h 16m1 stop Orlando
Multiple Airlines Logo
7:30 a.m. - 1:10 p.m.YYZ  Toronto Pearson Intl-STL Lambert-St Louis
30h 40m2 stops Fort Lauderdale Atlanta Hartsfield-Jackson
C$ 514Multiple Airlines
Fri, 18 Sep - Sun, 27 Sep
Multiple Airlines Logo
5:19 p.m. - 11:35 p.m.STL  Lambert-St Louis-YYZ Toronto Pearson Intl
29h 16m1 stop Orlando
Multiple Airlines Logo
7:30 a.m. - 1:10 p.m.YYZ  Toronto Pearson Intl-STL Lambert-St Louis
30h 40m2 stops Fort Lauderdale Atlanta Hartsfield-Jackson
C$ 516Multiple Airlines
Fri, 18 Sep - Sun, 27 Sep
Multiple Airlines Logo
10:35 a.m. - 10:55 p.m.STL  Lambert-St Louis-YYZ Toronto Pearson Intl
11h 20m2 stops Atlanta Hartsfield-Jackson Tampa
Multiple Airlines Logo
6:30 a.m. - 7:39 p.m.YYZ  Toronto Pearson Intl-STL Lambert-St Louis
14h 09m1 stop Orlando
C$ 523Multiple Airlines
Fri, 6 Nov - Sun, 8 Nov
Multiple Airlines Logo
8:34 p.m. - 12:10 a.m.STL  Lambert-St Louis-YYZ Toronto Pearson Intl
26h 36m1 stop Orlando
Multiple Airlines Logo
4:20 p.m. - 9:40 a.m.YYZ  Toronto Pearson Intl-STL Lambert-St Louis
18h 20m2 stops Fort Lauderdale Atlanta Hartsfield-Jackson
C$ 523Multiple Airlines
Fri, 30 Oct - Sun, 8 Nov
Multiple Airlines Logo
8:34 p.m. - 1:40 p.m.STL  Lambert-St Louis-YYZ Toronto Pearson Intl
16h 06m1 stop Orlando
Multiple Airlines Logo
6:30 a.m. - 7:39 p.m.YYZ  Toronto Pearson Intl-STL Lambert-St Louis
14h 09m1 stop Orlando
C$ 530Multiple Airlines
Fri, 6 Nov - Sun, 8 Nov
Multiple Airlines Logo
10:35 a.m. - 4:55 p.m.STL  Lambert-St Louis-YYZ Toronto Pearson Intl
29h 20m2 stops Atlanta Hartsfield-Jackson Fort Lauderdale
Multiple Airlines Logo
5:15 p.m. - 7:39 p.m.YYZ  Toronto Pearson Intl-STL Lambert-St Louis
27h 24m1 stop Orlando
C$ 530Multiple Airlines
Tue, 20 Oct - Wed, 28 Oct
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$ 800Air Canada
Fri, 9 Oct - Sun, 11 Oct
Air Canada Logo
2:40 p.m. - 5:34 p.m.STL  Lambert-St Louis-YYZ Toronto Pearson Intl
1h 54mdirect
Air Canada Logo
6:55 p.m. - 8:00 p.m.YYZ  Toronto Pearson Intl-STL Lambert-St Louis
2h 05mdirect
C$ 800Air Canada
Sat, 3 Oct - Tue, 6 Oct

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American Airlines flights from St. Louis to Toronto

Our best American Airlines deals on St. Louis to Toronto flight tickets
American Airlines
5 Sep
STL5:00 a.m.Lambert-St Louis
11h 44m
1 stop
YYZ5:44 p.m.Toronto Pearson Intl
12 Sep
YYZ6:30 a.m.Toronto Pearson Intl
11h 18m
1 stop
STL4:48 p.m.Lambert-St Louis
C$ 532
American Airlines
10 Sep
STL7:27 a.m.Lambert-St Louis
9h 17m
1 stop
YYZ5:44 p.m.Toronto Pearson Intl
15 Sep
YYZ11:40 a.m.Toronto Pearson Intl
10h 04m
1 stop
STL8:44 p.m.Lambert-St Louis
C$ 556
American Airlines
22 Sep
STL7:27 a.m.Lambert-St Louis
9h 17m
1 stop
YYZ5:44 p.m.Toronto Pearson Intl
25 Sep
YYZ1:15 p.m.Toronto Pearson Intl
12h 12m
1 stop
STL12:27 a.m.Lambert-St Louis
C$ 623

WestJet flights from St. Louis to Toronto

Our best WestJet deals on St. Louis to Toronto flight tickets
WestJet
23 Aug
STL5:23 p.m.Lambert-St Louis
27h 36m
1 stop
YYZ9:59 p.m.Toronto Pearson Intl
25 Aug
YYZ8:00 p.m.Toronto Pearson Intl
14h 54m
2 stops
STL9:54 a.m.Lambert-St Louis
C$ 683
WestJet
24 Aug
STL11:00 a.m.Lambert-St Louis
18h 55m
2 stops
YYZ6:55 a.m.Toronto Pearson Intl
26 Aug
YYZ6:00 a.m.Toronto Pearson Intl
4h 54m
1 stop
STL9:54 a.m.Lambert-St Louis
C$ 694
WestJet
23 Aug
STL6:30 a.m.Lambert-St Louis
3h 49m
1 stop
YYZ11:19 a.m.Toronto Pearson Intl
26 Aug
YYZ6:10 a.m.Toronto Pearson Intl
4h 27m
1 stop
STL9:37 a.m.Lambert-St Louis
C$ 773

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Toronto 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 10 August 2026.
Use the filters below to find and compare flights from St. Louis to Toronto 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

Mon 19/10

10:35 a.m.-4:45 p.m.

2 stops29h 10m

Toronto Pearson Intl

Wed 28/10

5:15 p.m.-7:39 p.m.

1 stop27h 24m

C$ 500

St. LouisToronto

STL Lambert-St Louis - YYZ Toronto Pearson Intl

STLYYZ

Lambert-St Louis

Fri 18/9

5:19 p.m.-11:35 p.m.

1 stop29h 16m

Toronto Pearson Intl

Sun 27/9

7:30 a.m.-1:10 p.m.

2 stops30h 40m

C$ 513

St. LouisToronto

STL Lambert-St Louis - YYZ Toronto Pearson Intl

STLYYZ

Lambert-St Louis

Fri 18/9

5:19 p.m.-11:35 p.m.

1 stop29h 16m

Toronto Pearson Intl

Sun 27/9

7:30 a.m.-1:10 p.m.

2 stops30h 40m

C$ 514

St. LouisToronto

STL Lambert-St Louis - YYZ Toronto Pearson Intl

STLYYZ

Lambert-St Louis

Fri 18/9

5:19 p.m.-11:35 p.m.

1 stop29h 16m

Toronto Pearson Intl

Sun 27/9

7:30 a.m.-1:10 p.m.

2 stops30h 40m

C$ 516

St. LouisToronto

STL Lambert-St Louis - YYZ Toronto Pearson Intl

STLYYZ

Lambert-St Louis

Fri 6/11

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

2 stops11h 20m

Toronto Pearson Intl

Sun 8/11

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

1 stop14h 09m

C$ 523

St. LouisToronto

STL Lambert-St Louis - YYZ Toronto Pearson Intl

STLYYZ

Lambert-St Louis

Fri 30/10

8:34 p.m.-12:10 a.m.

1 stop26h 36m

Toronto Pearson Intl

Sun 8/11

4:20 p.m.-9:40 a.m.

2 stops18h 20m

C$ 523

St. LouisToronto

STL Lambert-St Louis - YYZ Toronto Pearson Intl

STLYYZ

Lambert-St Louis

Fri 6/11

8:34 p.m.-1:40 p.m.

1 stop16h 06m

Toronto Pearson Intl

Sun 8/11

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

1 stop14h 09m

C$ 530

St. LouisToronto

STL Lambert-St Louis - YYZ Toronto Pearson Intl

STLYYZ

Lambert-St Louis

Tue 20/10

10:35 a.m.-4:55 p.m.

2 stops29h 20m

Toronto Pearson Intl

Wed 28/10

5:15 p.m.-7:39 p.m.

1 stop27h 24m

C$ 530
Quickest round-trip

St. LouisToronto

STL Lambert-St Louis - YYZ Toronto Pearson Intl

STLYYZ

Lambert-St Louis

Fri 9/10

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

Nonstop1h 54m

Toronto Pearson Intl

Sun 11/10

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

Nonstop2h 05m

C$ 800

St. LouisToronto

STL Lambert-St Louis - YYZ Toronto Pearson Intl

STLYYZ

Lambert-St Louis

Sat 3/10

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

Nonstop1h 54m

Toronto Pearson Intl

Tue 6/10

6:55 p.m.-8:00 p.m.

Nonstop2h 05m

C$ 800

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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See travel insights to Toronto from

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

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?

Prices are currently low for flights on this route.

Typical prices usually range from C$ 911 to C$ 1,525.
The lowest price recently found on this route was C$ 500.

What is the cheapest month to fly to Toronto?

The month of December is, on average, the cheapest month to fly to Toronto from St. Louis, with most prices found around C$ 649. The month of March is another great option to travel to Toronto, with average flight prices from St. Louis averaging around C$ 672.

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

According to our data, Saturday is the cheapest day to fly to Toronto from St. Louis. The lowest ticket price found for a Saturday departure recently was C$ 330. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Flights from St. Louis to Toronto on a Thursday will generally be more expensive and average around C$ 1,026. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

Flying to Toronto from St. Louis in the morning is the least expensive time of day to depart. momondo users have found prices as low as C$ 473 when looking at flights departing in the morning. Try not to purchase tickets at noon because they tend to be around C$ 798. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

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

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

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

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

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

As of August 2026, prices for St. Louis to Toronto flights are approximately 13% cheaper when compared to flights at the same time last year.

When to book flights from St. Louis to Toronto

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

Cheap St. Louis to Toronto (STL to YTO) flight deals and tips

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

Fastest flight time

1h 54m

Direct flights

Every day

Airports in Toronto

3 airports
The fastest flight from St. Louis to Toronto takes 1h 54m
Direct flights go from St. Louis to Toronto every day.
There are 3 airports in Toronto. From St. Louis there are direct flights to Toronto Pearson Intl (YYZ).
Search flight deals

Frequently asked questions about flying from St. Louis to Toronto

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

    There are 1062.1 km between Lambert-St Louis and Toronto. In terms of flight time, this usually takes a little over 1h 54m.

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

    Prices for flights from Lambert-St Louis Airport to Toronto were last updated today.

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

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

    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.

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

    The necessary travel and health documents for your Toronto 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?

Best airlines flying from St. Louis to Toronto

Compare and see reviews for airlines that fly from St. Louis to Toronto with momondo
Airline
Rating
Free Cancellation
Price
Air CanadaPriceFrom C$ 330Free CancellationRating
7.1
11,458 reviews
Search Air Canada flights

  • Air Canada Flights From St. Louis to Toronto

    The lowest priced Air Canada flight from St. Louis to Toronto from the last 72 hours was C$ 330. Generally, Air Canada has 13 flights on this route every week with an average price of C$ 735. Air Canada is rated 7.1/10 by our users.

Travelling to a place near Toronto?

Book flights to Toronto if you plan to visit one of these locations
Apsley

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from St. Louis to Toronto . Millions of users trust and use momondo every year so you are in good hands.

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 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 Toronto from St. Louis.

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

If you are simply researching potential flights to Toronto, momondo offers a useful price alert feature which will track prices for flights to Toronto from St. Louis and alert you when they change.

An easier way to manage your Toronto trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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Find better results for your trip to Canada

Fly into one of these airports located in Toronto

Airports listed have a maximum distance of 83.6 km from Toronto
Toronto Region of Waterloo Intl Airport
Toronto Island Airport
Toronto Pearson Intl Airport