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Cheap flights from St. Louis to Toronto from C$ 179

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 28/2. 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

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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
3:49 p.m. - 2:20 p.m.
STL
-
YYZ
21h 31m
1 stop
Multiple Airlines Logo
3:40 p.m. - 11:19 p.m.
YYZ
-
STL
32h 39m
2 stops
C$ 419Multiple Airlines
Mon, 2 Mar - Mon, 9 Mar
Multiple Airlines Logo
3:49 p.m. - 2:20 p.m.
STL
-
YYZ
21h 31m
1 stop
Multiple Airlines Logo
7:10 a.m. - 11:19 p.m.
YYZ
-
STL
17h 09m
1 stop
C$ 430Multiple Airlines
Tue, 3 Mar - Tue, 10 Mar
Multiple Airlines Logo
3:49 p.m. - 2:20 p.m.
STL
-
YYZ
21h 31m
1 stop
Multiple Airlines Logo
7:55 p.m. - 7:11 p.m.
YYZ
-
STL
24h 16m
1 stop
C$ 433Multiple Airlines
Mon, 2 Mar - Mon, 9 Mar
Multiple Airlines Logo
3:49 p.m. - 2:20 p.m.
STL
-
YYZ
21h 31m
1 stop
Multiple Airlines Logo
3:40 p.m. - 10:37 a.m.
YYZ
-
STL
19h 57m
2 stops
C$ 440Multiple Airlines
Tue, 3 Mar - Tue, 10 Mar
Multiple Airlines Logo
4:51 p.m. - 2:20 p.m.
STL
-
YYZ
20h 29m
1 stop
Multiple Airlines Logo
10:15 p.m. - 12:15 p.m.
YYZ
-
STL
39h 00m
2 stops
C$ 455Multiple Airlines
Mon, 9 Mar - Sun, 15 Mar
Multiple Airlines Logo
4:51 p.m. - 2:20 p.m.
STL
-
YYZ
20h 29m
1 stop
Multiple Airlines Logo
10:15 p.m. - 12:15 p.m.
YYZ
-
STL
39h 00m
2 stops
C$ 456Multiple Airlines
Mon, 9 Mar - Sun, 15 Mar
Multiple Airlines Logo
8:10 p.m. - 2:20 p.m.
STL
-
YYZ
17h 10m
1 stop
Multiple Airlines Logo
3:40 p.m. - 10:32 a.m.
YYZ
-
STL
19h 52m
2 stops
C$ 470Multiple Airlines
Mon, 16 Mar - Mon, 23 Mar
Multiple Airlines Logo
8:10 p.m. - 2:20 p.m.
STL
-
YYZ
17h 10m
1 stop
Multiple Airlines Logo
8:20 p.m. - 11:19 p.m.
YYZ
-
STL
27h 59m
1 stop
C$ 481Multiple Airlines
Mon, 16 Mar - Mon, 23 Mar
Multiple Airlines Logo
1:09 p.m. - 11:35 a.m.
STL
-
YYZ
21h 26m
2 stops
Multiple Airlines Logo
7:10 a.m. - 11:19 p.m.
YYZ
-
STL
17h 09m
1 stop
C$ 492Multiple Airlines
Fri, 6 Mar - Tue, 10 Mar
American Airlines Logo
8:53 a.m. - 5:44 p.m.
STL
-
YYZ
7h 51m
1 stop
American Airlines Logo
11:44 a.m. - 6:27 p.m.
YYZ
-
STL
7h 43m
1 stop
C$ 493American Airlines
Wed, 15 Apr - Sat, 18 Apr

American Airlines flights from St. Louis to Toronto

Our best American Airlines deals on St. Louis to Toronto flight tickets
American Airlines
15 Apr
STL5:46 a.m.Lambert-St Louis
10h 57m
1 stop
YYZ5:43 p.m.Toronto Pearson Intl
18 Apr
YYZ3:13 p.m.Toronto Pearson Intl
9h 33m
1 stop
STL11:46 p.m.Lambert-St Louis
C$ 493
American Airlines
11 Apr
STL2:33 p.m.Lambert-St Louis
7h 56m
1 stop
YYZ11:29 p.m.Toronto Pearson Intl
15 Apr
YYZ11:33 a.m.Toronto Pearson Intl
11h 44m
1 stop
STL10:17 p.m.Lambert-St Louis
C$ 511
American Airlines
7 Mar
STL8:00 a.m.Lambert-St Louis
12h 29m
1 stop
YYZ9:29 p.m.Toronto Pearson Intl
16 Mar
YYZ4:44 p.m.Toronto Pearson Intl
8h 00m
1 stop
STL11:44 p.m.Lambert-St Louis
C$ 580

Air Canada flights from St. Louis to Toronto

Our best Air Canada deals on St. Louis to Toronto flight tickets
Air Canada
19 Mar
STL4:05 p.m.Lambert-St Louis
2h 01m
YYZ7:06 p.m.Toronto Pearson Intl
26 Mar
YYZ2:00 p.m.Toronto Pearson Intl
2h 29m
STL3:29 p.m.Lambert-St Louis
C$ 620
Air Canada
17 Feb
STL11:25 a.m.Lambert-St Louis
7h 20m
1 stop
YYZ7:45 p.m.Toronto Pearson Intl
20 Feb
YYZ2:00 p.m.Toronto Pearson Intl
2h 29m
STL3:29 p.m.Lambert-St Louis
C$ 835
Air Canada
14 Feb
STL4:05 p.m.Lambert-St Louis
2h 01m
YYZ7:06 p.m.Toronto Pearson Intl
21 Feb
YYZ2:00 p.m.Toronto Pearson Intl
2h 29m
STL3:29 p.m.Lambert-St Louis
C$ 945

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 4 February 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

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Mon 2/3

3:49 p.m.-2:20 p.m.

1 stop21h 31m

Toronto Pearson Intl

Mon 9/3

3:40 p.m.-11:19 p.m.

2 stops32h 39m

C$ 419

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Tue 3/3

3:49 p.m.-2:20 p.m.

1 stop21h 31m

Toronto Pearson Intl

Tue 10/3

7:10 a.m.-11:19 p.m.

1 stop17h 09m

C$ 430

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Mon 2/3

3:49 p.m.-2:20 p.m.

1 stop21h 31m

Toronto Pearson Intl

Mon 9/3

7:55 p.m.-7:11 p.m.

1 stop24h 16m

C$ 433

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Tue 3/3

3:49 p.m.-2:20 p.m.

1 stop21h 31m

Toronto Pearson Intl

Tue 10/3

3:40 p.m.-10:37 a.m.

2 stops19h 57m

C$ 440

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Mon 9/3

4:51 p.m.-2:20 p.m.

1 stop20h 29m

Toronto Pearson Intl

Sun 15/3

10:15 p.m.-12:15 p.m.

2 stops39h 00m

C$ 455

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Mon 9/3

4:51 p.m.-2:20 p.m.

1 stop20h 29m

Toronto Pearson Intl

Sun 15/3

10:15 p.m.-12:15 p.m.

2 stops39h 00m

C$ 456

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Mon 16/3

8:10 p.m.-2:20 p.m.

1 stop17h 10m

Toronto Pearson Intl

Mon 23/3

3:40 p.m.-10:32 a.m.

2 stops19h 52m

C$ 470

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Mon 16/3

8:10 p.m.-2:20 p.m.

1 stop17h 10m

Toronto Pearson Intl

Mon 23/3

8:20 p.m.-11:19 p.m.

1 stop27h 59m

C$ 481

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Fri 6/3

1:09 p.m.-11:35 a.m.

2 stops21h 26m

Toronto Pearson Intl

Tue 10/3

7:10 a.m.-11:19 p.m.

1 stop17h 09m

C$ 492

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Wed 15/4

8:53 a.m.-5:44 p.m.

1 stop7h 51m

Toronto Pearson Intl

Sat 18/4

11:44 a.m.-6:27 p.m.

1 stop7h 43m

C$ 493

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 June is, on average, the cheapest month to fly to Toronto from St. Louis, with most prices found around C$ 496. The month of May is another great option to travel to Toronto, with average flight prices from St. Louis averaging around C$ 590.

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

According to our data, Sunday is the cheapest day to fly to Toronto from St. Louis. The lowest ticket price found for a Sunday departure recently was C$ 463. 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 Wednesday will generally be more expensive and average around C$ 889. 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$ 573 when looking at flights departing in the morning. Try not to purchase tickets in the afternoon because they tend to be around C$ 636. 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$ 727 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$ 302 on momondo.

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

There is only 1 cabin class 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 21% 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

Fastest flight time

1h 51m

Direct flights

Every day

Airports in Toronto

3 airports
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

  • 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$ 298Free CancellationRating
7.1
10,684 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$ 298. Generally, Air Canada has 7 flights on this route every week with an average price of C$ 636. 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