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Cheap flights from St. Louis to Toronto Pearson Intl Airport from C$ 171

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 Pearson Intl Airport departing on 9/5. 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

KAYAK's recommended round-trip deals from the most popular airlines that fly from St. Louis to Toronto.
 Logo
10:10 a.m. - 9:00 p.m.STL-YYZ
9h 50m1 stop
 Logo
4:00 p.m. - 11:37 p.m.YYZ-STL
8h 37m1 stop
C$ 441
Find Deal
jeu., 5 juin - lun., 9 juin
 Logo
5:45 p.m. - 1:59 p.m.STL-YYZ
19h 14m1 stop
 Logo
4:00 p.m. - 6:41 p.m.YYZ-STL
27h 41m2 stops
C$ 451
Find Deal
mar., 6 mai - sam., 10 mai
Air Canada Logo
7:30 a.m. - 10:25 a.m.STL-YYZ
1h 55mdirect
Air Canada Logo
3:00 p.m. - 7:58 p.m.YYZ-STL
5h 58m1 stop
C$ 595Air Canada
Find Deal
jeu., 15 mai - dim., 18 mai
American Airlines Logo
6:00 a.m. - 5:20 p.m.STL-YYZ
10h 20m1 stop
American Airlines Logo
3:14 p.m. - 11:54 p.m.YYZ-STL
9h 40m1 stop
C$ 605American Airlines
Find Deal
mar., 3 juin - mar., 10 juin
American Airlines Logo
6:12 a.m. - 4:44 p.m.STL-YYZ
9h 32m1 stop
American Airlines Logo
11:05 a.m. - 9:42 p.m.YYZ-STL
11h 37m1 stop
C$ 619American Airlines
Find Deal
dim., 25 mai - sam., 31 mai
Delta Logo
6:00 a.m. - 4:14 p.m.STL-YYZ
9h 14m1 stop
Delta Logo
6:15 a.m. - 3:17 p.m.YYZ-STL
10h 02m1 stop
C$ 620Delta
Find Deal
mer., 11 juin - mar., 17 juin
United Airlines Logo
2:30 p.m. - 5:30 p.m.STL-YYZ
2h 00mdirect
United Airlines Logo
11:30 a.m. - 12:36 p.m.YYZ-STL
2h 06mdirect
C$ 624United Airlines
Find Deal
ven., 9 mai - lun., 12 mai
Delta Logo
5:34 p.m. - 11:15 p.m.STL-YYZ
4h 41m1 stop
Delta Logo
7:55 a.m. - 8:48 p.m.YYZ-STL
13h 53m1 stop
C$ 626Delta
Find Deal
lun., 5 mai - mar., 20 mai
Air Canada Logo
7:30 a.m. - 10:25 a.m.STL-YYZ
1h 55mdirect
Air Canada Logo
3:00 p.m. - 7:58 p.m.YYZ-STL
5h 58m1 stop
C$ 630Air Canada
Find Deal
sam., 14 juin - mer., 18 juin
United Airlines Logo
6:33 a.m. - 2:19 p.m.STL-YYZ
6h 46m2 stops
United Airlines Logo
2:10 p.m. - 3:16 p.m.YYZ-STL
2h 06mdirect
C$ 651United Airlines
Find Deal
mar., 22 juil. - sam., 26 juil.

Air Canada flights from St. Louis to Toronto Pearson Intl Airport

Our best Air Canada deals on St. Louis to Toronto Pearson Intl Airport flight tickets
Air Canada
15 May
STL7:30 a.m.Lambert-St Louis
1h 55m
YYZ10:25 a.m.Toronto Pearson Intl
18 May
YYZ3:00 p.m.Toronto Pearson Intl
5h 58m
1 stop
STL7:58 p.m.Lambert-St Louis
Air Canada
14 Jun
STL7:30 a.m.Lambert-St Louis
1h 55m
YYZ10:25 a.m.Toronto Pearson Intl
18 Jun
YYZ3:00 p.m.Toronto Pearson Intl
5h 58m
1 stop
STL7:58 p.m.Lambert-St Louis
Air Canada
6 Jun
STL1:30 p.m.Lambert-St Louis
7h 09m
1 stop
YYZ9:39 p.m.Toronto Pearson Intl
8 Jun
YYZ3:00 p.m.Toronto Pearson Intl
5h 58m
1 stop
STL7:58 p.m.Lambert-St Louis

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
3 Jun
STL6:00 a.m.Lambert-St Louis
10h 20m
1 stop
YYZ5:20 p.m.Toronto Pearson Intl
10 Jun
YYZ3:14 p.m.Toronto Pearson Intl
9h 40m
1 stop
STL11:54 p.m.Lambert-St Louis
American Airlines
25 May
STL6:12 a.m.Lambert-St Louis
9h 32m
1 stop
YYZ4:44 p.m.Toronto Pearson Intl
31 May
YYZ11:05 a.m.Toronto Pearson Intl
11h 37m
1 stop
STL9:42 p.m.Lambert-St Louis
American Airlines
9 May
STL6:00 a.m.Lambert-St Louis
7h 30m
1 stop
YYZ2:30 p.m.Toronto Pearson Intl
12 May
YYZ3:10 p.m.Toronto Pearson Intl
7h 42m
1 stop
STL9:52 p.m.Lambert-St Louis

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?

What is the cheapest month to fly to Toronto Pearson Intl Airport?

If you aren’t able to travel during the month of January, then book flights to Toronto Pearson Intl Airport from St. Louis during October instead. Flights to Toronto Pearson Intl Airport in October, while not as cheap as those in January, still average around C$ 412.

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

Our data shows that Monday 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$ 0. When flying out on a Sunday, 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$ 933.

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 evening. Our users have found flights to Toronto Pearson Intl Airport in the evening for as low as C$ 0. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are C$ 933 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

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

You are more likely to see cheaper flights to Toronto Pearson Intl Airport from St. Louis when booking 24 weeks ahead of your departure date. In general, you can expect to find flights to Toronto Pearson Intl Airport for around C$ 666 when searching 24 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Toronto Pearson Intl Airport from St. Louis for as low as C$ 298 on momondo.

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

There are 1 cabin classes available to choose from on Lambert-St Louis to Toronto Pearson Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

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

As of April 2025, prices for St. Louis to Toronto Pearson Intl Airport flights are approximately 57% 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$ 171

Fastest flight time

1h 55m

Direct flights

Every day
The best one-way flight to Toronto Pearson Intl Airport from St. Louis in the past 72 hours is C$ 171. The best round-trip flight deal from St. Louis to Toronto Pearson Intl Airport found on momondo in the last 72 hours is C$ 441.
The fastest flight from St. Louis to Toronto Pearson Intl Airport takes 1h 55m
Direct flights go from St. Louis to Toronto Pearson Intl Airport every day.

  • 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 55m.

  • 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$ 303Free CancellationRating
7.0
9,142 reviews
Search Air Canada flights
  • Air Canada Flights From St. Louis to Toronto Pearson Intl Airport

    Air Canada operates around 3 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$ 543, but momondo users have found Air Canada deals from St. Louis to Toronto Pearson Intl Airport from as low as C$ 218 round-trip. Air Canada has been scored 7.0/10 in 9,142 reviews.


Travelling to a place near Toronto?

Book flights to Toronto if you plan to visit one of these locations
Niagara Falls
Mississauga
Brampton
Markham
Collingwood
Oshawa
Barrie
Muskoka
Niagara-on-the-Lake
Vaughan
Kitchener
Brantford
Burlington
Guelph
Orillia
Oakville
Peterborough
Cambridge
Gravenhurst
Waterloo

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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