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Cheap flights from St. Louis to Toronto from $164

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 5/13. 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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0 bags

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Cheap round-trip flights

These are some of the best round-trip flight deals from St. Louis to Toronto that have been recently found on momondo from popular airlines, departing in the coming months.
 Logo
11:28 am - 2:05 pmSTL-YYZ
25h 37m1 stop
 Logo
6:30 am - 10:33 amYYZ-STL
29h 03m1 stop
Fri, Jun 20 - Sun, Jun 22
 Logo
10:10 am - 10:25 pmSTL-YYZ
11h 15m1 stop
 Logo
4:00 pm - 11:44 pmYYZ-STL
8h 44m1 stop
Sat, May 24 - Wed, May 28
Delta Logo
6:45 pm - 9:30 amSTL-YYZ
13h 45m1 stop
Delta Logo
7:55 am - 8:57 pmYYZ-STL
14h 02m1 stop
$431Delta
Find Deal
Tue, May 27 - Tue, Jul 8
Delta Logo
6:45 pm - 9:30 amSTL-YYZ
13h 45m1 stop
Delta Logo
6:49 pm - 8:07 amYYZ-STL
14h 18m1 stop
$436Delta
Find Deal
Sun, May 25 - Thu, May 29
Air Canada Logo
7:30 am - 10:25 amSTL-YYZ
1h 55mnonstop
Air Canada Logo
11:30 am - 12:36 pmYYZ-STL
2h 06mnonstop
$475Air Canada
Find Deal
Fri, Jun 13 - Fri, Jun 20
Air Canada Logo
7:30 am - 10:25 amSTL-YYZ
1h 55mnonstop
Air Canada Logo
11:30 am - 12:36 pmYYZ-STL
2h 06mnonstop
$478Air Canada
Find Deal
Fri, Jun 13 - Fri, Jun 20
United Airlines Logo
9:09 am - 4:44 pmSTL-YYZ
6h 35m1 stop
United Airlines Logo
2:10 pm - 3:16 pmYYZ-STL
2h 06mnonstop
$497United Airlines
Find Deal
Sat, Jul 5 - Fri, Jul 25
United Airlines Logo
6:33 am - 1:42 pmSTL-YYZ
6h 09m1 stop
United Airlines Logo
7:00 am - 10:40 amYYZ-STL
4h 40m1 stop
$503United Airlines
Find Deal
Sat, Jul 5 - Fri, Jul 25
American Airlines Logo
6:00 am - 5:40 pmSTL-YYZ
10h 40m1 stop
American Airlines Logo
12:45 pm - 8:55 pmYYZ-STL
9h 10m1 stop
$510American Airlines
Find Deal
Fri, Jun 27 - Wed, Jul 2
American Airlines Logo
5:15 am - 2:59 pmSTL-YYZ
8h 44m1 stop
American Airlines Logo
6:00 am - 11:58 amYYZ-STL
6h 58m1 stop
$537American Airlines
Find Deal
Thu, Jul 10 - Sun, Jul 20

United Airlines flights from St. Louis to Toronto Pearson Intl Airport

Our best United Airlines deals on St. Louis to Toronto Pearson Intl Airport flight tickets
United Airlines
Jul 5
STL9:09 amLambert-St Louis
6h 35m
1 stop
YYZ4:44 pmToronto Pearson Intl
Jul 25
YYZ2:10 pmToronto Pearson Intl
2h 06m
STL3:16 pmLambert-St Louis
United Airlines
Jul 5
STL6:33 amLambert-St Louis
6h 09m
1 stop
YYZ1:42 pmToronto Pearson Intl
Jul 25
YYZ7:00 amToronto Pearson Intl
4h 40m
1 stop
STL10:40 amLambert-St Louis
United Airlines
Jul 4
STL5:00 amLambert-St Louis
7h 47m
2 stops
YYZ1:47 pmToronto Pearson Intl
Jul 8
YYZ2:10 pmToronto Pearson Intl
2h 06m
STL3:16 pmLambert-St Louis

WestJet flights from St. Louis to Toronto Pearson Intl Airport

Our best WestJet deals on St. Louis to Toronto Pearson Intl Airport flight tickets
WestJet
Jun 11
STL11:48 amLambert-St Louis
11h 36m
2 stops
YYZ12:24 amToronto Pearson Intl
Jun 15
YYZ3:31 pmToronto Pearson Intl
6h 09m
1 stop
STL8:40 pmLambert-St Louis
WestJet
Jun 1
STL6:00 amLambert-St Louis
11h 31m
1 stop
YYZ6:31 pmToronto Pearson Intl
Jul 9
YYZ12:00 pmToronto Pearson Intl
12h 20m
2 stops
STL11:20 pmLambert-St Louis
WestJet
May 6
STL5:32 pmLambert-St Louis
24h 24m
2 stops
YYZ6:56 pmToronto Pearson Intl
May 8
YYZ6:15 amToronto Pearson Intl
6h 33m
1 stop
STL11:48 amLambert-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?

The cheapest month to fly to Toronto Pearson Intl Airport from St. Louis is in January. Flight prices, which tend to average around $285, are often lower during this time because this is during the off-season. If you don’t want to visit Toronto Pearson Intl Airport in January, then you should wait until October to fly from St. Louis, when ticket prices are also cheap, with an average price of $296.

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

The cheapest day to depart from St. Louis to Toronto Pearson Intl Airport is on a Thursday when prices can be found for as low as $897. The most expensive day to fly to Toronto Pearson Intl Airport is Wednesday, with ticket prices averaging around $1,055.

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

Flying to Toronto Pearson Intl Airport from St. Louis in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $975 when looking at flights departing in the afternoon. Flights at noon are often more expensive with an average ticket price of $1,141.

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 23 weeks ahead of your departure date. In general, you can expect to find flights to Toronto Pearson Intl Airport for around $467 when searching 23 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 $221 on momondo.

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

There are 4 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

$164

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 $164. The best round-trip flight deal from St. Louis to Toronto Pearson Intl Airport found on momondo in the last 72 hours is $339.
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?

    A flight from Lambert-St Louis to Toronto Pearson Intl will travel around 650.6 mi. 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 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?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check 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 required travel and health documents for your Toronto Pearson Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Toronto Pearson Intl Airport. We recommend that you seek guidance from your airline or a reliable 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 $214Free CancellationRating
7.0
9,244 reviews
Search Air Canada flights
United AirlinesPriceFrom $214Free CancellationRating
7.4
8,696 reviews
Search United Airlines flights
American AirlinesPriceFrom $304Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
  • United Airlines Flights From St. Louis to Toronto Pearson Intl Airport

    United Airlines 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 $533, but momondo users have found United Airlines deals from St. Louis to Toronto Pearson Intl Airport from as low as $214 round-trip. United Airlines has been scored 7.4/10 in 8,696 reviews.

  • Air Canada Flights From St. Louis to Toronto Pearson Intl Airport

    Air Canada (7.0/10 from 9,244 reviews) operates around 3 flights from St. Louis to Toronto Pearson Intl Airport in any given week. The average Air Canada airfare for this route is around $492, with deals from around $214 rare but found on momondo. Referenced prices are for round-trip St. Louis to Toronto Pearson Intl Airport flight searches in the last 72 hours.


Traveling to a place near Toronto?

Book flights to Toronto if you plan to visit one of these locations
Niagara Falls
Mississauga
Brampton
Niagara-on-the-Lake
Vaughan
Markham
Oakville
Burlington
Richmond Hill
Kitchener
St. Catharines
Oshawa
Barrie
Cambridge
Pickering
Stratford
Brantford
Guelph
Milton
Orillia

Why use momondo?

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

Finding the right flight to Toronto from St. Louis is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Toronto quick and easy, saving you time and money.

Can I find flights from St. Louis to Toronto with flexible booking policies on momondo?

All flight searches from St. Louis to Toronto on momondo can be filtered to show those which offer flexible booking policies.

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.


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