Cheap flights from Toronto Pearson Intl Airport to St. Louis from C$ 192
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/2. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — STL
7 Feb — 14 Feb1
Round-trip
1 adult
Economy
Round-trip
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Toronto Pearson Intl to Lambert-St Louis are usually found in June or May, booked 65 days in advance, depart on a Thursday or Wednesday and return on a Wednesday
Cheap flight deals from Pearson Intl to St. Louis
Discover tips and strategies to find the most affordable flight options for your journey from Pearson Intl (YYZ) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 8 January 2026.
Explore the most affordable flight options available from Pearson Intl to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 8 January 2026.
Thu 22/15:15 p.m.YYZ - STL
1 stop18h 08mMultiple Airlines
Sun 25/15:42 p.m.STL - YYZ
1 stop29h 29mMultiple Airlines
Deal found 6/1C$ 328
Wed 21/17:15 a.m.YYZ - STL
2 stops17h 18mMultiple Airlines
Mon 26/15:42 p.m.STL - YYZ
1 stop19h 23mMultiple Airlines
Deal found 7/1C$ 332
Thu 22/17:15 a.m.YYZ - STL
2 stops17h 18mMultiple Airlines
Mon 26/110:16 a.m.STL - YYZ
1 stop12h 55mMultiple Airlines
Deal found 7/1C$ 333
Thu 19/28:20 p.m.YYZ - STL
1 stop29h 07mMultiple Airlines
Sat 28/23:49 p.m.STL - YYZ
1 stop7h 25mMultiple Airlines
Deal found 7/1C$ 334
Thu 19/28:20 p.m.YYZ - STL
1 stop29h 07mMultiple Airlines
Tue 24/23:49 p.m.STL - YYZ
1 stop7h 25mMultiple Airlines
Deal found 7/1C$ 336
Thu 19/28:20 p.m.YYZ - STL
1 stop29h 07mMultiple Airlines
Mon 23/23:49 p.m.STL - YYZ
1 stop7h 40mMultiple Airlines
Deal found 7/1C$ 337
Tue 17/28:20 p.m.YYZ - STL
1 stop27h 07mMultiple Airlines
Sat 28/23:49 p.m.STL - YYZ
1 stop7h 25mMultiple Airlines
Deal found 7/1C$ 346
Tue 17/28:20 p.m.YYZ - STL
1 stop27h 07mMultiple Airlines
Mon 23/23:49 p.m.STL - YYZ
1 stop7h 25mMultiple Airlines
Deal found 7/1C$ 348
Thu 5/35:15 p.m.YYZ - STL
1 stop7h 44mMultiple Airlines
Sun 8/39:22 p.m.STL - YYZ
1 stop32h 21mMultiple Airlines
Deal found 6/1C$ 352
Fri 20/28:00 p.m.YYZ - STL
1 stop22h 46mMultiple Airlines
Tue 24/23:49 p.m.STL - YYZ
1 stop7h 25mMultiple Airlines
Deal found 7/1C$ 357
Wed 21/17:15 a.m.YYZ - STL
2 stops17h 18mMultiple Airlines
Tue 27/15:42 p.m.STL - YYZ
1 stop19h 34mMultiple Airlines
Deal found 7/1C$ 359
Best flights from Pearson Intl to St. Louis
Discover carefully curated flight deals from Pearson Intl to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 8 January 2026.
Mon 16/24:45 p.m.YYZ - STL
1 stop22h 06mAlaska Airlines
Sat 28/22:47 p.m.STL - YYZ
1 stop23h 48mAlaska Airlines
Deal found 7/1C$ 462
Tue 24/24:45 p.m.YYZ - STL
1 stop22h 06mAlaska Airlines
Sat 28/22:47 p.m.STL - YYZ
1 stop23h 48mAlaska Airlines
Deal found 7/1C$ 462
Fri 20/24:45 p.m.YYZ - STL
1 stop22h 06mAlaska Airlines
Wed 25/27:00 a.m.STL - YYZ
1 stop31h 35mAlaska Airlines
Deal found 7/1C$ 462
Tue 17/24:45 p.m.YYZ - STL
1 stop22h 06mAlaska Airlines
Thu 26/27:00 a.m.STL - YYZ
1 stop31h 35mAlaska Airlines
Deal found 7/1C$ 471
Thu 19/24:45 p.m.YYZ - STL
1 stop32h 14mAlaska Airlines
Wed 25/27:00 a.m.STL - YYZ
1 stop31h 35mAlaska Airlines
Deal found 7/1C$ 471
Fri 20/24:45 p.m.YYZ - STL
1 stop22h 06mAlaska Airlines
Sun 22/27:00 a.m.STL - YYZ
1 stop31h 35mAlaska Airlines
Deal found 7/1C$ 471
Tue 17/24:45 p.m.YYZ - STL
1 stop22h 06mAlaska Airlines
Sun 22/27:00 a.m.STL - YYZ
1 stop31h 35mAlaska Airlines
Deal found 7/1C$ 471
Fri 6/34:45 p.m.YYZ - STL
1 stop22h 06mAlaska Airlines
Sun 8/37:00 a.m.STL - YYZ
1 stop31h 35mAlaska Airlines
Deal found 7/1C$ 471
Mon 16/24:45 p.m.YYZ - STL
1 stop22h 06mAlaska Airlines
Fri 27/27:00 a.m.STL - YYZ
1 stop31h 35mAlaska Airlines
Deal found 7/1C$ 471
Fri 20/24:45 p.m.YYZ - STL
1 stop22h 06mAlaska Airlines
Fri 27/22:47 p.m.STL - YYZ
1 stop23h 48mAlaska Airlines
Deal found 7/1C$ 471
Direct flights from Pearson Intl to St. Louis
Explore direct flight options from Pearson Intl to St. Louis based on user searches, and compare prices and availability for your desired travel dates. Data last updated 8 January 2026.
Fri 20/22:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Fri 27/24:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Deal found 7/1C$ 474
Wed 18/22:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Sun 22/24:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Deal found 7/1C$ 498
Wed 21/12:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Sun 25/14:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Deal found 7/1C$ 499
Thu 22/12:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Mon 26/14:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Deal found 5/1C$ 500
Tue 10/22:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Thu 12/24:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Deal found 7/1C$ 546
Thu 22/12:00 p.m.YYZ - STL
Nonstop2h 29mUnited Airlines
Sun 25/14:05 p.m.STL - YYZ
Nonstop2h 01mUnited Airlines
Deal found 6/1C$ 574
Wed 27/511:00 a.m.YYZ - STL
Nonstop2h 06mAir Canada
Wed 10/67:30 a.m.STL - YYZ
Nonstop1h 51mAir Canada
Deal found 8/1C$ 581
Sun 18/12:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Wed 21/14:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Deal found 7/1C$ 583
Sun 17/511:00 a.m.YYZ - STL
Nonstop2h 06mAir Canada
Sun 24/57:30 a.m.STL - YYZ
Nonstop1h 51mAir Canada
Deal found 8/1C$ 597
Fri 15/56:55 p.m.YYZ - STL
Nonstop2h 09mAir Canada
Mon 18/57:30 a.m.STL - YYZ
Nonstop1h 51mAir Canada
Deal found 6/1C$ 599
Tue 17/22:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Wed 18/24:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Deal found 7/1C$ 629
Tue 17/22:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Sat 28/24:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Deal found 7/1C$ 641
Last-minute flights from Pearson Intl to St. Louis
Discover last-minute flight deals from Pearson Intl to St. Louis. Data last updated 8 January 2026 and is based on user searches.
Wed 21/17:15 a.m.YYZ - STL
2 stops17h 18mMultiple Airlines
Mon 26/15:42 p.m.STL - YYZ
1 stop19h 23mMultiple Airlines
Deal found 7/1C$ 332
Wed 21/17:15 a.m.YYZ - STL
2 stops17h 18mMultiple Airlines
Tue 27/15:42 p.m.STL - YYZ
1 stop19h 34mMultiple Airlines
Deal found 7/1C$ 359
Thu 22/15:15 p.m.YYZ - STL
1 stop18h 08mMultiple Airlines
Sun 25/15:42 p.m.STL - YYZ
1 stop29h 29mMultiple Airlines
Deal found 6/1C$ 328
Thu 22/17:15 a.m.YYZ - STL
2 stops17h 18mMultiple Airlines
Mon 26/110:16 a.m.STL - YYZ
1 stop12h 55mMultiple Airlines
Deal found 7/1C$ 333
Thu 22/17:15 a.m.YYZ - STL
2 stops17h 18mMultiple Airlines
Tue 27/15:42 p.m.STL - YYZ
1 stop19h 34mMultiple Airlines
Deal found 7/1C$ 361
Tue 17/28:20 p.m.YYZ - STL
1 stop27h 07mMultiple Airlines
Sat 28/23:49 p.m.STL - YYZ
1 stop7h 25mMultiple Airlines
Deal found 7/1C$ 346
Tue 17/28:20 p.m.YYZ - STL
1 stop27h 07mMultiple Airlines
Tue 24/23:49 p.m.STL - YYZ
1 stop7h 25mMultiple Airlines
Deal found 7/1C$ 348
Thu 19/28:20 p.m.YYZ - STL
1 stop29h 07mMultiple Airlines
Sat 28/23:49 p.m.STL - YYZ
1 stop7h 25mMultiple Airlines
Deal found 7/1C$ 334
Thu 19/28:20 p.m.YYZ - STL
1 stop29h 07mMultiple Airlines
Tue 24/23:49 p.m.STL - YYZ
1 stop7h 25mMultiple Airlines
Deal found 7/1C$ 336
Thu 19/28:20 p.m.YYZ - STL
1 stop29h 07mMultiple Airlines
Mon 23/23:49 p.m.STL - YYZ
1 stop7h 40mMultiple Airlines
Deal found 7/1C$ 337
Fri 20/28:00 p.m.YYZ - STL
1 stop22h 46mMultiple Airlines
Tue 24/23:49 p.m.STL - YYZ
1 stop7h 25mMultiple Airlines
Deal found 7/1C$ 357
One-way flights from Pearson Intl to St. Louis
Search for one-way flight options from Pearson Intl to St. Louis. Find affordable one-way fares based on user searches. Data last updated 8 January 2026.
Thu 5/25:15 p.m.YYZ - STL
1 stop7h 18mMultiple Airlines
Deal found 6/1C$ 192
Thu 19/28:20 p.m.YYZ - STL
1 stop29h 07mMultiple Airlines
Deal found 6/1C$ 200
Tue 10/39:40 a.m.YYZ - STL
3 stops26h 39mMultiple Airlines
Deal found 7/1C$ 211
Sat 21/27:15 a.m.YYZ - STL
2 stops17h 44mMultiple Airlines
Deal found 7/1C$ 260
Tue 10/32:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Deal found 7/1C$ 274
Thu 5/22:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Deal found 6/1C$ 288
Cheapflights Fare Finder
Customize your flight search to find flights from Pearson Intl to St. Louis 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, Cheapflights users made 629,999 searches. Data last updated 8 January 2026.
Use the filters below to find and compare flights from Toronto Pearson Intl Airport to St. Louis that are best for you.
Fly from
Pearson Intl
Fly to
St. Louis
Route
Depart
Return
Price
TorontoSt. Louis
YYZ - STL
YYZSTL
Toronto Pearson Intl
Mon 16/2
4:45 p.m.-1:51 p.m.
1 stop22h 06m
Lambert-St Louis
Sat 28/2
2:47 p.m.-3:35 p.m.
1 stop23h 48m
C$ 462
TorontoSt. Louis
YYZ - STL
YYZSTL
Toronto Pearson Intl
Tue 24/2
4:45 p.m.-1:51 p.m.
1 stop22h 06m
Lambert-St Louis
Sat 28/2
2:47 p.m.-3:35 p.m.
1 stop23h 48m
C$ 462
TorontoSt. Louis
YYZ - STL
YYZSTL
Toronto Pearson Intl
Fri 20/2
4:45 p.m.-1:51 p.m.
1 stop22h 06m
Lambert-St Louis
Wed 25/2
7:00 a.m.-3:35 p.m.
1 stop31h 35m
C$ 462
TorontoSt. Louis
YYZ - STL
YYZSTL
Toronto Pearson Intl
Tue 17/2
4:45 p.m.-1:51 p.m.
1 stop22h 06m
Lambert-St Louis
Thu 26/2
7:00 a.m.-3:35 p.m.
1 stop31h 35m
C$ 471
TorontoSt. Louis
YYZ - STL
YYZSTL
Toronto Pearson Intl
Thu 19/2
4:45 p.m.-11:59 p.m.
1 stop32h 14m
Lambert-St Louis
Wed 25/2
7:00 a.m.-3:35 p.m.
1 stop31h 35m
C$ 471
TorontoSt. Louis
YYZ - STL
YYZSTL
Toronto Pearson Intl
Fri 20/2
4:45 p.m.-1:51 p.m.
1 stop22h 06m
Lambert-St Louis
Sun 22/2
7:00 a.m.-3:35 p.m.
1 stop31h 35m
C$ 471
TorontoSt. Louis
YYZ - STL
YYZSTL
Toronto Pearson Intl
Tue 17/2
4:45 p.m.-1:51 p.m.
1 stop22h 06m
Lambert-St Louis
Sun 22/2
7:00 a.m.-3:35 p.m.
1 stop31h 35m
C$ 471
TorontoSt. Louis
YYZ - STL
YYZSTL
Toronto Pearson Intl
Fri 6/3
4:45 p.m.-1:51 p.m.
1 stop22h 06m
Lambert-St Louis
Sun 8/3
7:00 a.m.-3:35 p.m.
1 stop31h 35m
C$ 471
TorontoSt. Louis
YYZ - STL
YYZSTL
Toronto Pearson Intl
Mon 16/2
4:45 p.m.-1:51 p.m.
1 stop22h 06m
Lambert-St Louis
Fri 27/2
7:00 a.m.-3:35 p.m.
1 stop31h 35m
C$ 471
TorontoSt. Louis
YYZ - STL
YYZSTL
Toronto Pearson Intl
Fri 20/2
4:45 p.m.-1:51 p.m.
1 stop22h 06m
Lambert-St Louis
Fri 27/2
2:47 p.m.-3:35 p.m.
1 stop23h 48m
C$ 471
Flights are sorted by cheapest round-trip flights first.
Deals found on 6/1
Showing 1-10 of 19 results
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Best time to book a flight from Pearson Intl to St. Louis
Have a flexible travel schedule? Discover the best time to fly to St. Louis from Pearson Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Toronto Pearson Intl Airport to St. Louis
How far ahead should I book a flight from Toronto Pearson Intl Airport to St. Louis?
Use this chart to determine the optimal time to book a round-trip flight from Pearson Intl to St. Louis. Price data was last updated on 2 January 2026.
The price you pay for your flight from Toronto Pearson Intl Airport to St. Louis may vary depending on when you book. For the best chance of a lower fare, look to book 65 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from Toronto Pearson Intl Airport to St. Louis?
Currently, December is the cheapest month in which you can book a flight from Toronto Pearson Intl Airport to St. Louis (average of C$ 341). Flying from Toronto Pearson Intl Airport to St. Louis in April is currently the most expensive (average of C$ 514). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from YYZ to STL?
Find hourly flight availability from Pearson Intl to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 8 January 2026.
When flying from Toronto Pearson Intl Airport to St. Louis, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Reviews of airlines servicing St. Louis
Get insights into the airlines that provide service to St. Louis. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to St. Louis. Reviews last updated 8 January 2026.
See what other customers who have flown with Delta,United Airlines, andAmerican Airlines from Toronto Pearson Intl Airport to St. Louis have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Related info for your journey
Find useful and relevant information for your journey from Pearson Intl to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
What airport do you fly into for flights to St. Louis from Toronto Pearson Intl?
Lambert-St Louis (STL), located 20.4 km from the city centre, is the airport you fly into when you book flights from Toronto Pearson Intl to St. Louis. 5 airlines have flights to Lambert-St Louis from Toronto Pearson Intl on a regular basis. Booking flights from Toronto Pearson Intl to Lambert-St Louis should not be difficult; the airport handles an average of 1 inbound flight from Toronto Pearson Intl per day.
How long is the flight from Toronto Pearson Intl Airport to St. Louis?
There are many flights that can get you from Toronto Pearson Intl Airport to St. Louis in 22h 06m. Fly via Alaska Airlines to get the fastest option. The distance from Toronto Pearson Intl Airport to St. Louis is about 1051 km.
What are the cheapest airlines flying from Toronto Pearson Intl Airport to St. Louis round-trip?
United Airlines, at C$ 338, was found to be the cheapest airline from Toronto Pearson Intl Airport to St. Louis.Alternate airlines to your destination round-trip include American Airlines and Air Canada. United Airlines is 47% cheaper than the average price of flights available within the next 90 days to this destination.
What are the most reliable airlines from Toronto Pearson Intl Airport to St. Louis?
No one likes to see their flight delayed. When booking a flight from Toronto Pearson Intl Airport to St. Louis consider choosing Air Canada (84%), Jazz (84%) or United Airlines (84%) as they are the most reliable in getting you off to your destination on time.
What are the cheapest flights from Toronto Pearson Intl Airport to St. Louis?
While on average a flight from Toronto Pearson Intl Airport to St. Louis is generally C$ 576, our data shows the cheapest flight currently is C$ 441. When looking at the most popular route, (Toronto Pearson Intl - Lambert-St Louis), you can expect to pay C$ 328 for that flight.
Can I find deals for business class flights from Pearson Intl to St. Louis?
Yes. Cheapflights offers flight deals from Pearson Intl to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Toronto Pearson Intl Airport to St. Louis?
Currently, December is the cheapest month in which you can book a flight from Toronto Pearson Intl Airport to St. Louis (average of C$ 341). Flying from Toronto Pearson Intl Airport to St. Louis in April is currently the most expensive (average of C$ 514). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Browse through other flights departing from Pearson Intl. Flights are based on user searches made on Cheapflights and were last updated on 8 January 2026.
Top 5 airlines flying from Pearson Intl to St. Louis
Discover the top 5 airlines that operate flights from Pearson Intl to St. Louis. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 8 January 2026.
Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Pearson Intl to St. Louis?
Cheapflights helps you search for flights from Pearson Intl to St. Louis via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.
Why should you use Cheapflights to find cheap flight tickets from Pearson Intl to St. Louis?
Millions of users choose and trust Cheapflights to book the best flight deals from Pearson Intl to St. Louis for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.
Can Cheapflights find flights from Pearson Intl to St. Louis with no change fees?
Cheapflights does show flights with no change fees to all users. To see these options for flights from Pearson Intl to St. Louis, users can toggle the no change fees filter when performing a flight search.
Can Cheapflights notify me if prices for flights from Pearson Intl to St. Louis become cheaper?
Not ready to book yet? You can track prices for flights from Pearson Intl to St. Louis on Cheapflights with our Price Alert feature and get notified when better prices are available.
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