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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$ 509American 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
1:17 p.m. - 12:16 a.m.
YYZ
-
STL
11h 59m
1 stop
C$ 533American Airlines
Tue, 21 Jul - Tue, 28 Jul
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$ 568Multiple Airlines
Sun, 25 Oct - Sat, 31 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$ 589American 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
1:17 p.m. - 12:16 a.m.
YYZ
-
STL
11h 59m
1 stop
C$ 598American Airlines
Tue, 21 Jul - Tue, 28 Jul
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$ 602Multiple 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$ 603Multiple Airlines
Sat, 24 Oct - Sat, 31 Oct
Multiple Airlines Logo
7:03 p.m. - 6:39 a.m.
STL
-
YYZ
10h 36m
1 stop
Multiple Airlines Logo
4:45 p.m. - 1:21 p.m.
YYZ
-
STL
21h 36m
2 stops
C$ 607Multiple Airlines
Wed, 22 Jul - Sun, 26 Jul
Multiple Airlines Logo
7:10 p.m. - 9:15 p.m.
STL
-
YYZ
25h 05m
2 stops
Multiple Airlines Logo
8:35 p.m. - 6:05 p.m.
YYZ
-
STL
22h 30m
1 stop
C$ 610Multiple Airlines
Thu, 16 Jul - Mon, 20 Jul
Multiple Airlines Logo
10:35 a.m. - 8:55 p.m.
STL
-
YYZ
33h 20m
2 stops
Multiple Airlines Logo
6:30 a.m. - 7:39 p.m.
YYZ
-
STL
14h 09m
1 stop
C$ 612Multiple Airlines
Wed, 21 Oct - Thu, 29 Oct

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Air Canada flights from St. Louis to Toronto

Our best Air Canada deals on St. Louis to Toronto flight tickets
Air Canada
13 Aug
STL2:40 p.m.Lambert-St Louis
2h 00m
YYZ5:40 p.m.Toronto Pearson Intl
17 Aug
YYZ7:15 p.m.Toronto Pearson Intl
2h 09m
STL8:24 p.m.Lambert-St Louis
C$ 723
Air Canada
16 Jul
STL8:55 a.m.Lambert-St Louis
1h 57m
YYZ11:52 a.m.Toronto Pearson Intl
20 Jul
YYZ7:15 p.m.Toronto Pearson Intl
2h 07m
STL8:22 p.m.Lambert-St Louis
C$ 728
Air Canada
13 Aug
STL12:10 p.m.Lambert-St Louis
5h 51m
1 stop
YYZ7:01 p.m.Toronto Pearson Intl
17 Aug
YYZ12:00 p.m.Toronto Pearson Intl
7h 42m
1 stop
STL6:42 p.m.Lambert-St Louis
C$ 735

Delta flights from St. Louis to Toronto

Our best Delta deals on St. Louis to Toronto flight tickets
Delta
3 Jul
STL12:20 p.m.Lambert-St Louis
10h 23m
1 stop
YYZ11:43 p.m.Toronto Pearson Intl
5 Jul
YYZ7:50 a.m.Toronto Pearson Intl
9h 00m
1 stop
STL3:50 p.m.Lambert-St Louis
C$ 1,232
Delta
4 Jul
STL2:15 p.m.Lambert-St Louis
26h 54m
1 stop
YYZ6:09 p.m.Toronto Pearson Intl
12 Jul
YYZ6:30 a.m.Toronto Pearson Intl
4h 58m
1 stop
STL10:28 a.m.Lambert-St Louis
C$ 1,260

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 25 June 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 - 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$ 509

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$ 533

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

Sat 31/10

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

1 stop14h 09m

C$ 568
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$ 589

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$ 598

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$ 602

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

Sat 31/10

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

1 stop14h 09m

C$ 603

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Wed 22/7

7:03 p.m.-6:39 a.m.

1 stop10h 36m

Toronto Pearson Intl

Sun 26/7

4:45 p.m.-1:21 p.m.

2 stops21h 36m

C$ 607

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Thu 16/7

7:10 p.m.-9:15 p.m.

2 stops25h 05m

Toronto Pearson Intl

Mon 20/7

8:35 p.m.-6:05 p.m.

1 stop22h 30m

C$ 610

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Wed 21/10

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

2 stops33h 20m

Toronto Pearson Intl

Thu 29/10

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

1 stop14h 09m

C$ 612

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

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?

What is the cheapest month to fly to Toronto?

The month of June is, on average, the cheapest month to fly to Toronto from St. Louis, with most prices found around C$ 225. The month of September is another great option to travel to Toronto, with average flight prices from St. Louis averaging around C$ 233.

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$ 352. 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$ 1,048. 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 afternoon is the least expensive time of day to depart. momondo users have found prices as low as C$ 663 when looking at flights departing in the afternoon. Try not to purchase tickets at noon because they tend to be around C$ 815. 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?

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

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

As of June 2026, prices for St. Louis to Toronto flights are approximately 6% more expensive 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

Best price found

C$ 293

Fastest flight time

1h 51m

Direct flights

Every day

Airports in Toronto

3 airports
The best one-way flight to Toronto from St. Louis in the past 72 hours is C$ 293. The best round-trip flight deal from St. Louis to Toronto found on momondo in the last 72 hours is C$ 352.
The fastest flight from St. Louis to Toronto takes 1h 51m
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 51m.

  • 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$ 337Free CancellationRating
7.1
11,254 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$ 337. Generally, Air Canada has 9 flights on this route every week with an average price of C$ 663. 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

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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