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Cheap flights from St. Louis to Toronto from C$ 201

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 17/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from St. Louis to Toronto

Cheap round-trip flights

American Airlines Logo
8:01 p.m. - 12:32 p.m.STL-YYZ
15h 31m1 stop
American Airlines Logo
3:11 p.m. - 9:53 p.m.YYZ-STL
7h 42m1 stop
C$ 477American Airlines
Find Deal
Tue, 2 Sep - Wed, 10 Sep
Logo
12:05 p.m. - 11:35 a.m.STL-YYZ
22h 30m2 stops
Logo
7:00 a.m. - 10:50 a.m.YYZ-STL
28h 50m3 stops
C$ 491
Find Deal
Thu, 4 Sep - Sat, 6 Sep
Logo
9:50 a.m. - 9:07 p.m.STL-YYZ
10h 17m2 stops
Logo
6:30 a.m. - 5:55 p.m.YYZ-STL
12h 25m1 stop
C$ 502
Find Deal
Fri, 17 Oct - Sat, 25 Oct
American Airlines Logo
7:23 a.m. - 5:41 p.m.STL-YYZ
9h 18m1 stop
American Airlines Logo
6:30 a.m. - 12:54 p.m.YYZ-STL
7h 24m1 stop
C$ 508American Airlines
Find Deal
Tue, 26 Aug - Tue, 2 Sep
Air Canada Logo
4:05 p.m. - 7:00 p.m.STL-YYZ
1h 55mdirect
Air Canada Logo
6:35 p.m. - 7:38 p.m.YYZ-STL
2h 03mdirect
C$ 605Air Canada
Find Deal
Thu, 4 Sep - Sun, 7 Sep
United Airlines Logo
3:20 p.m. - 11:58 p.m.STL-YYZ
7h 38m1 stop
United Airlines Logo
9:00 a.m. - 3:44 p.m.YYZ-STL
7h 44m1 stop
C$ 612United Airlines
Find Deal
Wed, 3 Sep - Tue, 9 Sep
Delta Logo
9:16 a.m. - 8:43 p.m.STL-YYZ
10h 27m1 stop
Delta Logo
6:44 p.m. - 7:56 a.m.YYZ-STL
14h 12m1 stop
C$ 645Delta
Find Deal
Wed, 3 Sep - Thu, 11 Sep
Air Canada Logo
1:30 p.m. - 11:14 p.m.STL-YYZ
8h 44m1 stop
Air Canada Logo
6:35 p.m. - 7:38 p.m.YYZ-STL
2h 03mdirect
C$ 657Air Canada
Find Deal
Thu, 4 Sep - Sun, 7 Sep
Delta Logo
6:00 a.m. - 11:43 p.m.STL-YYZ
16h 43m1 stop
Delta Logo
6:44 p.m. - 7:56 a.m.YYZ-STL
14h 12m1 stop
C$ 666Delta
Find Deal
Thu, 4 Sep - Thu, 11 Sep
United Airlines Logo
6:35 a.m. - 3:46 p.m.STL-YYZ
8h 11m1 stop
United Airlines Logo
9:00 a.m. - 6:23 p.m.YYZ-STL
10h 23m1 stop
C$ 671United Airlines
Find Deal
Tue, 26 Aug - Tue, 2 Sep

Air Canada flights from St. Louis to Toronto

Our best Air Canada deals on St. Louis to Toronto flight tickets
Air Canada
4 Sep
STL4:05 p.m.Lambert-St Louis
1h 55m
YYZ7:00 p.m.Toronto Pearson Intl
7 Sep
YYZ6:35 p.m.Toronto Pearson Intl
2h 03m
STL7:38 p.m.Lambert-St Louis
C$ 605
Find similar
Air Canada
4 Sep
STL1:30 p.m.Lambert-St Louis
8h 44m
1 stop
YYZ11:14 p.m.Toronto Pearson Intl
7 Sep
YYZ6:35 p.m.Toronto Pearson Intl
2h 03m
STL7:38 p.m.Lambert-St Louis
C$ 657
Find similar
Air Canada
4 Sep
STL4:05 p.m.Lambert-St Louis
1h 55m
YYZ7:00 p.m.Toronto Pearson Intl
6 Sep
YYZ2:15 p.m.Toronto Pearson Intl
2h 03m
STL3:18 p.m.Lambert-St Louis
C$ 695
Find similar

United Airlines flights from St. Louis to Toronto

Our best United Airlines deals on St. Louis to Toronto flight tickets
United Airlines
3 Sep
STL3:20 p.m.Lambert-St Louis
7h 38m
1 stop
YYZ11:58 p.m.Toronto Pearson Intl
9 Sep
YYZ9:00 a.m.Toronto Pearson Intl
7h 44m
1 stop
STL3:44 p.m.Lambert-St Louis
C$ 612
Find similar
United Airlines
26 Aug
STL6:35 a.m.Lambert-St Louis
8h 11m
1 stop
YYZ3:46 p.m.Toronto Pearson Intl
2 Sep
YYZ9:00 a.m.Toronto Pearson Intl
10h 23m
1 stop
STL6:23 p.m.Lambert-St Louis
C$ 671
Find similar
United Airlines
26 Aug
STL9:17 a.m.Lambert-St Louis
13h 41m
1 stop
YYZ11:58 p.m.Toronto Pearson Intl
3 Sep
YYZ10:00 a.m.Toronto Pearson Intl
9h 23m
1 stop
STL6:23 p.m.Lambert-St Louis
C$ 684
Find similar

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 31 July 2025.
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

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Tue 2/9

8:01 p.m.-12:32 p.m.

1 stop15h 31m

Toronto Pearson Intl

Wed 10/9

3:11 p.m.-9:53 p.m.

1 stop7h 42m

C$ 477

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Thu 4/9

12:05 p.m.-11:35 a.m.

2 stops22h 30m

Toronto Pearson Intl

Sat 6/9

7:00 a.m.-10:50 a.m.

3 stops28h 50m

C$ 491

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Fri 17/10

9:50 a.m.-9:07 p.m.

2 stops10h 17m

Toronto Pearson Intl

Sat 25/10

6:30 a.m.-5:55 p.m.

1 stop12h 25m

C$ 502

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Tue 26/8

7:23 a.m.-5:41 p.m.

1 stop9h 18m

Toronto Pearson Intl

Tue 2/9

6:30 a.m.-12:54 p.m.

1 stop7h 24m

C$ 508

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Thu 4/9

4:05 p.m.-7:00 p.m.

Nonstop1h 55m

Toronto Pearson Intl

Sun 7/9

6:35 p.m.-7:38 p.m.

Nonstop2h 03m

C$ 605

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Wed 3/9

3:20 p.m.-11:58 p.m.

1 stop7h 38m

Toronto Pearson Intl

Tue 9/9

9:00 a.m.-3:44 p.m.

1 stop7h 44m

C$ 612

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Wed 3/9

9:16 a.m.-8:43 p.m.

1 stop10h 27m

Toronto Pearson Intl

Thu 11/9

6:44 p.m.-7:56 a.m.

1 stop14h 12m

C$ 645

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Thu 4/9

1:30 p.m.-11:14 p.m.

1 stop8h 44m

Toronto Pearson Intl

Sun 7/9

6:35 p.m.-7:38 p.m.

Nonstop2h 03m

C$ 657

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Thu 4/9

6:00 a.m.-11:43 p.m.

1 stop16h 43m

Toronto Pearson Intl

Thu 11/9

6:44 p.m.-7:56 a.m.

1 stop14h 12m

C$ 666

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Tue 26/8

6:35 a.m.-3:46 p.m.

1 stop8h 11m

Toronto Pearson Intl

Tue 2/9

9:00 a.m.-6:23 p.m.

1 stop10h 23m

C$ 671

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 cheapest month to fly to Toronto?

The month of January is, on average, the cheapest month to fly to Toronto from St. Louis, with most prices found around C$ 432. The month of April is another great option to travel to Toronto, with average flight prices from St. Louis averaging around C$ 435.

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

According to our data, Thursday is the cheapest day to fly to Toronto from St. Louis. The lowest ticket price found for a Thursday departure recently was C$ 357. 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 Sunday will generally be more expensive and average around C$ 928. 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 at noon is the least expensive time of day to depart. momondo users have found prices as low as C$ 593 when looking at flights departing at noon. Try not to purchase tickets in the morning because they tend to be around C$ 782. 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

How far in advance should I book a flight to Toronto?

You are more likely to see cheaper flights to Toronto from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Toronto for around C$ 630 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Toronto from St. Louis for as low as C$ 306 on momondo.

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

There are 1 cabin classes available to choose from on Lambert-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 67% 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?

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$ 201

Fastest flight time

1h 55m

Direct flights

Every day

Airports in Toronto

1 airport
The best one-way flight to Toronto from St. Louis in the past 72 hours is C$ 201. The best round-trip flight deal from St. Louis to Toronto found on momondo in the last 72 hours is C$ 477.
The fastest flight from St. Louis to Toronto takes 1h 55m
Direct flights go from St. Louis to Toronto every day.
There is 1 airport near Toronto: Toronto Pearson Intl (YYZ)
Search flight deals

  • 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 55m.

  • 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?

  • What is the most popular airline 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$ 302Free CancellationRating
7.1
9,851 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$ 218. Generally, Air Canada has 14 flights on this route every week with an average price of C$ 500. 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