$202 Cheap Flights from Toronto (YYZ) to St. Louis (STL)

View $202 flight on Sun, Nov 23, 2025Opens in a new window

Popular airlines from Toronto Pearson Intl. Airport (YYZ) to St. Louis Lambert Intl. Airport (STL)

Cheap Flights from Toronto to St. Louis (YYZ-STL)

Prices were available within the past 7 days and start at $202 for one-way flights and $362 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Wed, Oct 8 - Sat, Oct 11
YYZ
Toronto
STL
St. Louis
$362 Roundtrip, found 5 days ago
$362
Roundtrip
found 5 days ago
Select American Airlines flight, departing Wed, Oct 8 from Toronto to St. Louis, returning Sat, Oct 11, priced at $362 found 5 days ago
Air Canada
Sun, Nov 2 - Tue, Nov 4
YYZ
Toronto
STL
St. Louis
$380 Roundtrip, found 5 days ago
$380
Roundtrip
found 5 days ago
Select Air Canada flight, departing Sun, Nov 2 from Toronto to St. Louis, returning Tue, Nov 4, priced at $380 found 5 days ago
Air Canada
Wed, Nov 5 - Wed, Nov 12
YYZ
Toronto
STL
St. Louis
$384 Roundtrip, just found
$384
Roundtrip
just found
Select Air Canada flight, departing Wed, Nov 5 from Toronto to St. Louis, returning Wed, Nov 12, priced at $384 just found
Delta
Sat, Nov 1 - Tue, Nov 4
YYZ
Toronto
STL
St. Louis
$386 Roundtrip, found 5 days ago
$386
Roundtrip
found 5 days ago
Select Delta flight, departing Sat, Nov 1 from Toronto to St. Louis, returning Tue, Nov 4, priced at $386 found 5 days ago
Delta
Wed, Nov 5 - Tue, Nov 11
YYZ
Toronto
STL
St. Louis
$389 Roundtrip, found 5 days ago
$389
Roundtrip
found 5 days ago
Select Delta flight, departing Wed, Nov 5 from Toronto to St. Louis, returning Tue, Nov 11, priced at $389 found 5 days ago
American Airlines
Sat, Nov 15 - Sat, Nov 22
YYZ
Toronto
STL
St. Louis
$396 Roundtrip, found 6 days ago
$396
Roundtrip
found 6 days ago
Select American Airlines flight, departing Sat, Nov 15 from Toronto to St. Louis, returning Sat, Nov 22, priced at $396 found 6 days ago
American Airlines
Sun, Nov 23 - Fri, Nov 28
YYZ
Toronto
STL
St. Louis
$397 Roundtrip, found 4 days ago
$397
Roundtrip
found 4 days ago
Select American Airlines flight, departing Sun, Nov 23 from Toronto to St. Louis, returning Fri, Nov 28, priced at $397 found 4 days ago
American Airlines
Tue, Oct 7 - Wed, Oct 8
YYZ
Toronto
STL
St. Louis
$399 Roundtrip, found 2 days ago
$399
Roundtrip
found 2 days ago
Select American Airlines flight, departing Tue, Oct 7 from Toronto to St. Louis, returning Wed, Oct 8, priced at $399 found 2 days ago
United
Tue, Nov 25 - Sat, Nov 29
YYZ
Toronto
STL
St. Louis
$428 Roundtrip, found 16 hours ago
$428
Roundtrip
found 16 hours ago
Select United flight, departing Tue, Nov 25 from Toronto to St. Louis, returning Sat, Nov 29, priced at $428 found 16 hours ago
Alaska Airlines
Tue, Feb 10 - Tue, Feb 24
YYZ
Toronto
STL
St. Louis
$448 Roundtrip, found 3 days ago
$448
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Tue, Feb 10 from Toronto to St. Louis, returning Tue, Feb 24, priced at $448 found 3 days ago

Find the cheapest month to fly from Toronto (YYZ) to St. Louis (STL)

October is typically the cheapest month to fly

From $320 - $547 per traveler.

Frequently asked questions

How much does a flight from Pearson Intl. Airport (YYZ) to Lambert-St. Louis Intl. Airport (STL) cost?
Snag a cheap one-way flight from $202 or cheap return flight from $362 from Pearson Intl. Airport (YYZ) to Lambert-St. Louis Intl. Airport (STL) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Pearson Intl. Airport (YYZ) to Lambert-St. Louis Intl. Airport (STL)?
October is the cheapest month to fly from YYZ to STL. Traveling during quieter months is often the key to landing a great deal.
Which airlines fly direct from Pearson Intl. Airport (YYZ) to Lambert-St. Louis Intl. Airport (STL)?
Hop on a nonstop flight with Air Canada and go straight from Pearson Intl. Airport (YYZ) to Lambert-St. Louis Intl. Airport (STL).
How many flights per day from Pearson Intl. Airport (YYZ) to Lambert-St. Louis Intl. Airport (STL)?
On average, just 1 direct flight departs daily from Pearson Intl. Airport (YYZ) to Lambert-St. Louis Intl. Airport (STL). Need other options? Use our filter tool to find flights with layovers and explore a new city along the way.
What are the most popular departure times for flights from Pearson Intl. Airport (YYZ) to Lambert-St. Louis Intl. Airport (STL)?
Flights between YYZ and STL are their busiest at 1 PM. If you'd like a more relaxed atmosphere and possibly cheaper fares, choose a departure that's outside typical rush times.
What day of the week has the most flights from YYZ to STL?
If you travel on a Wednesday, you'll get the biggest range of options for flights from Pearson Intl. Airport (YYZ) to Lambert-St. Louis Intl. Airport (STL).
What is the earliest flight from Pearson Intl. Airport (YYZ) to Lambert-St. Louis Intl. Airport (STL)?
Catch the earliest flight at around 1:50PM UTC-5, heading out of Pearson Intl. Airport (YYZ). You'll be in the air for around 2h 16m, landing at Lambert-St. Louis Intl. Airport (STL) at approximately 3:06PM UTC-6.
How long does it take to fly from Pearson Intl. Airport (YYZ) to Lambert-St. Louis Intl. Airport (STL)?
Flights from YYZ to STL have an average travel time of 2 hours and 16 minutes. The total distance between the two airports is 650 mi.
What is the best time to fly from Pearson Intl. Airport (YYZ) to Lambert-St. Louis Intl. Airport (STL)?
To arrive at Lambert-St. Louis Intl. Airport (STL) on schedule, opt for a flight that leaves from Pearson Intl. Airport (YYZ) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for St. Louis from Pearson Intl. Airport (YYZ)?
Lambert-St. Louis Intl. Airport (STL) is the only airport in St. Louis with direct flights from Pearson Intl. Airport (YYZ). Compare the available options and discover cheap fares on Expedia.
Is it cheaper to buy a plane ticket from Pearson Intl. Airport (YYZ) to Lambert-St. Louis Intl. Airport (STL) last-minute?
Booking your ticket from YYZ to STL shortly before your trip is typically more expensive. But if you're flexible with your travel dates and times, you could land a cheap last-minute fare.
Is it cheaper to book a YYZ to STL flight and hotel package?
Compared with arranging flights and hotels separately, booking a YYZ to STL flight and hotel package with Expedia could result in significant savings. What's more, having it all in one place takes the hassle out of planning your trip. Simply pick your flights and select from our extensive range of hotels, then tailor your trip with other add-ons like activities, tours and car rentals.
Can I cancel or change the date of my flight from Pearson Intl. Airport (YYZ) to Lambert-St. Louis Intl. Airport (STL)?
Typically, you can cancel or modify your YYZ to STL flight. However, additional charges may apply, especially if your booking was made over 24 hours ago. Double-check your itinerary for the airline's guidelines and fees on flight changes, or if you need further information, head to our Customer Service portal.

Travel information

Travel information

Origin airport
Pearson Intl.
Destination airport
Lambert-St. Louis Intl.
Airlines serving
Air Canada, American Airlines, Delta, United, WestJet
Roundtrip price
$361
Distance
654 mi
Average flight time
1 hour 3 mins

Book with confidence

Book with confidence

Toronto to St. Louis Flights

The cheapest times to fly from Toronto to St. Louis

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Toronto to St. Louis are during the month of October. You can find some of the cheapest flights from Toronto to St. Louis with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Toronto to St. Louis

Sunday is one of the best days to book for cheap flights from Toronto to St. Louis: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Toronto to St. Louis

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Toronto to St. Louis in 2025. You can also book with separate airlines for your outbound and return journeys, from $202 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Toronto to St. Louis flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Toronto to St. Louis airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Toronto to St. Louis Flights

Explore a world of travel with Expedia

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*Available to One Key members.