Cheap flights from Toronto Pearson Intl Airport to St. Louis from C$ 200
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 4/2. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — STL
3 Jan — 10 Jan1
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 72 days in advance, depart on a Thursday or Wednesday and return on a Wednesday
Cheap flight deals from Pearson Intl to St. Louis
Enter your travel dates to find the best prices.
Cheapest flights from Pearson Intl to St. Louis
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 4 December 2025.
Tue 9/127:15 a.m.YYZ - STL
1 stop16h 18mMultiple Airlines
Tue 16/123:30 p.m.STL - YYZ
1 stop21h 50mMultiple Airlines
Deal found 2/12C$ 370
Wed 31/127:40 a.m.YYZ - STL
1 stop28h 16mMultiple Airlines
Wed 7/15:11 p.m.STL - YYZ
2 stops26h 00mMultiple Airlines
Deal found 3/12C$ 420
Thu 11/127:15 a.m.YYZ - STL
2 stops16h 18mMultiple Airlines
Mon 15/123:30 p.m.STL - YYZ
1 stop21h 50mMultiple Airlines
Deal found 2/12C$ 434
Thu 11/127:15 a.m.YYZ - STL
2 stops16h 18mMultiple Airlines
Sun 14/123:30 p.m.STL - YYZ
1 stop21h 50mMultiple Airlines
Deal found 2/12C$ 480
Wed 17/127:00 a.m.YYZ - STL
1 stop8h 49mAmerican Airlines
Fri 2/16:02 a.m.STL - YYZ
1 stop9h 37mAmerican Airlines
Deal found 3/12C$ 486
Wed 31/129:00 a.m.YYZ - STL
1 stop6h 26mAir Canada
Wed 31/126:35 p.m.STL - YYZ
1 stop4h 24mAir Canada
Deal found 2/12C$ 508
Wed 31/127:30 a.m.YYZ - STL
2 stops7h 56mUnited Airlines
Wed 31/126:35 p.m.STL - YYZ
1 stop4h 24mUnited Airlines
Deal found 2/12C$ 547
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 4 December 2025.
Tue 3/21:14 p.m.YYZ - STL
1 stop9h 01mAmerican Airlines
Thu 5/211:05 a.m.STL - YYZ
1 stop9h 18mAmerican Airlines
Deal found 3/12C$ 345
Sat 10/15:15 p.m.YYZ - STL
1 stop16h 25mMultiple Airlines
Mon 12/18:50 a.m.STL - YYZ
2 stops10h 21mMultiple Airlines
Deal found 3/12C$ 357
Tue 24/22:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Sat 28/24:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Deal found 3/12C$ 466
Thu 8/110:16 a.m.YYZ - STL
1 stop7h 23mDelta
Mon 12/19:45 a.m.STL - YYZ
1 stop9h 41mDelta
Deal found 3/12C$ 473
Tue 24/26:00 a.m.YYZ - STL
1 stop8h 54mAmerican Airlines
Sat 28/26:33 p.m.STL - YYZ
1 stop15h 23mAmerican Airlines
Deal found 3/12C$ 380
Thu 11/127:15 a.m.YYZ - STL
2 stops16h 18mMultiple Airlines
Mon 15/123:30 p.m.STL - YYZ
1 stop21h 50mMultiple Airlines
Deal found 2/12C$ 434
Thu 8/17:10 a.m.YYZ - STL
1 stop16h 23mMultiple Airlines
Sun 11/112:37 p.m.STL - YYZ
1 stop17h 10mMultiple Airlines
Deal found 1/12C$ 437
Tue 3/26:06 a.m.YYZ - STL
2 stops11h 31mDelta
Thu 5/26:35 a.m.STL - YYZ
1 stop3h 45mDelta
Deal found 3/12C$ 504
Wed 17/127:00 a.m.YYZ - STL
1 stop8h 49mAmerican Airlines
Fri 2/16:02 a.m.STL - YYZ
1 stop9h 37mAmerican Airlines
Deal found 3/12C$ 486
Wed 31/127:40 a.m.YYZ - STL
1 stop28h 16mMultiple Airlines
Wed 7/15:11 p.m.STL - YYZ
1 stop20h 09mMultiple Airlines
Deal found 3/12C$ 490
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 4 December 2025.
Thu 22/12:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Sun 25/14:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Deal found 1/12C$ 447
Fri 23/12:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Sun 25/14:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Deal found 3/12C$ 465
Tue 24/22:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Sat 28/24:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Deal found 3/12C$ 466
Thu 8/12:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Sun 11/14:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Deal found 2/12C$ 511
Tue 27/12:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Sun 15/24:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Deal found 2/12C$ 518
Tue 3/22:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Thu 5/24:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Deal found 3/12C$ 528
Wed 7/12:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Mon 12/14:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Deal found 1/12C$ 539
Fri 13/22:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Wed 18/24:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Deal found 3/12C$ 540
Thu 8/12:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Mon 12/14:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Deal found 3/12C$ 554
Sat 17/12:00 p.m.YYZ - STL
Nonstop2h 29mUnited Airlines
Sat 24/14:05 p.m.STL - YYZ
Nonstop2h 01mUnited Airlines
Deal found 2/12C$ 613
Wed 31/122:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Wed 7/14:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Deal found 3/12C$ 646
Last-minute flights from Pearson Intl to St. Louis
Discover last-minute flight deals from Pearson Intl to St. Louis. Data last updated 4 December 2025 and is based on user searches.
Tue 9/127:15 a.m.YYZ - STL
1 stop16h 18mMultiple Airlines
Tue 16/123:30 p.m.STL - YYZ
1 stop21h 50mMultiple Airlines
Deal found 2/12C$ 370
Tue 6/17:15 a.m.YYZ - STL
1 stop16h 18mMultiple Airlines
Tue 13/15:11 p.m.STL - YYZ
1 stop20h 05mMultiple Airlines
Deal found 1/12C$ 356
Tue 6/17:15 a.m.YYZ - STL
1 stop16h 18mMultiple Airlines
Mon 12/18:50 a.m.STL - YYZ
1 stop14h 35mMultiple Airlines
Deal found 1/12C$ 371
Thu 8/17:10 a.m.YYZ - STL
1 stop16h 23mMultiple Airlines
Tue 13/15:11 p.m.STL - YYZ
1 stop20h 05mMultiple Airlines
Deal found 1/12C$ 377
Fri 9/18:00 p.m.YYZ - STL
2 stops15h 02mMultiple Airlines
Mon 12/18:50 a.m.STL - YYZ
1 stop14h 35mMultiple Airlines
Deal found 1/12C$ 387
Sat 10/15:15 p.m.YYZ - STL
1 stop16h 25mMultiple Airlines
Mon 12/18:50 a.m.STL - YYZ
2 stops10h 21mMultiple Airlines
Deal found 3/12C$ 357
Sun 11/18:00 p.m.YYZ - STL
1 stop13h 05mMultiple Airlines
Wed 14/18:32 p.m.STL - YYZ
2 stops16h 48mMultiple Airlines
Deal found 1/12C$ 391
Wed 14/11:30 p.m.YYZ - STL
2 stops24h 10mMultiple Airlines
Wed 21/15:42 p.m.STL - YYZ
1 stop19h 34mMultiple Airlines
Deal found 4/12C$ 364
Tue 27/17:04 p.m.YYZ - STL
1 stop16h 16mAmerican Airlines
Sun 15/26:00 a.m.STL - YYZ
1 stop10h 38mAmerican Airlines
Deal found 2/12C$ 380
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 4 December 2025.
Wed 4/27:15 a.m.YYZ - STL
1 stop17h 18mMultiple Airlines
Deal found 4/12C$ 200
Wed 7/17:15 a.m.YYZ - STL
1 stop16h 18mMultiple Airlines
Deal found 3/12C$ 218
Wed 17/127:15 a.m.YYZ - STL
2 stops16h 18mMultiple Airlines
Deal found 1/12C$ 222
Tue 6/17:04 p.m.YYZ - STL
1 stop16h 16mAmerican Airlines
Deal found 3/12C$ 226
Sat 10/15:15 p.m.YYZ - STL
1 stop16h 25mMultiple Airlines
Deal found 2/12C$ 239
Wed 10/127:15 a.m.YYZ - STL
1 stop16h 18mMultiple Airlines
Deal found 3/12C$ 246
Wed 14/11:30 p.m.YYZ - STL
2 stops24h 10mMultiple Airlines
Deal found 4/12C$ 253
Find 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 4 December 2025.
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 4 December 2025.
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
Tue 3/2
1:14 p.m.-9:15 p.m.
1 stop9h 01m
Lambert-St Louis
Thu 5/2
11:05 a.m.-9:23 p.m.
1 stop9h 18m
C$ 345
TorontoSt. Louis
YYZ - STL
YYZSTL
Toronto Pearson Intl
Sat 10/1
5:15 p.m.-8:40 a.m.
1 stop16h 25m
Lambert-St Louis
Mon 12/1
8:50 a.m.-8:11 p.m.
2 stops10h 21m
C$ 357
TorontoSt. Louis
YYZ - STL
YYZSTL
Toronto Pearson Intl
Tue 24/2
6:00 a.m.-1:54 p.m.
1 stop8h 54m
Lambert-St Louis
Sat 28/2
6:33 p.m.-10:56 a.m.
1 stop15h 23m
C$ 380
TorontoSt. Louis
YYZ - STL
YYZSTL
Toronto Pearson Intl
Thu 11/12
7:15 a.m.-10:33 p.m.
2 stops16h 18m
Lambert-St Louis
Mon 15/12
3:30 p.m.-2:20 p.m.
1 stop21h 50m
C$ 434
TorontoSt. Louis
YYZ - STL
YYZSTL
Toronto Pearson Intl
Thu 8/1
7:10 a.m.-10:33 p.m.
1 stop16h 23m
Lambert-St Louis
Sun 11/1
12:37 p.m.-6:47 a.m.
1 stop17h 10m
C$ 437
TorontoSt. Louis
YYZ - STL
YYZSTL
Toronto Pearson Intl
Tue 24/2
2:00 p.m.-3:29 p.m.
Nonstop2h 29m
Lambert-St Louis
Sat 28/2
4:05 p.m.-7:06 p.m.
Nonstop2h 01m
C$ 466
TorontoSt. Louis
YYZ - STL
YYZSTL
Toronto Pearson Intl
Thu 8/1
10:16 a.m.-4:39 p.m.
1 stop7h 23m
Lambert-St Louis
Mon 12/1
9:45 a.m.-8:26 p.m.
1 stop9h 41m
C$ 473
TorontoSt. Louis
YYZ - STL
YYZSTL
Toronto Pearson Intl
Wed 17/12
7:00 a.m.-2:49 p.m.
1 stop8h 49m
Lambert-St Louis
Fri 2/1
6:02 a.m.-4:39 p.m.
1 stop9h 37m
C$ 486
TorontoSt. Louis
YYZ - STL
YYZSTL
Toronto Pearson Intl
Wed 31/12
7:40 a.m.-10:56 a.m.
1 stop28h 16m
Lambert-St Louis
Wed 7/1
5:11 p.m.-2:20 p.m.
1 stop20h 09m
C$ 490
TorontoSt. Louis
YYZ - STL
YYZSTL
Toronto Pearson Intl
Tue 3/2
6:06 a.m.-4:37 p.m.
2 stops11h 31m
Lambert-St Louis
Thu 5/2
6:35 a.m.-11:20 a.m.
1 stop3h 45m
C$ 504
Flights are sorted by cheapest round-trip flights first.
Deals found on 4/12
Showing 1-10 of 17 results
1
2
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
Prices
More
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 28 November 2025.
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 72 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, October is the cheapest month in which you can book a flight from Toronto Pearson Intl Airport to St. Louis (average of C$ 391). Flying from Toronto Pearson Intl Airport to St. Louis in January is currently the most expensive (average of C$ 569). 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 4 December 2025.
When flying from Toronto Pearson Intl Airport to St. Louis, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 31% versus a flight in the evening.
What’s the top layover airport for flights from Toronto Pearson Intl Airport to St. Louis?
Share of one-stop round-trip flights from Toronto Pearson Intl Airport to St. Louis chosen by Cheapflights users in the past 12 months, using the same layover each way.
Chicago (ORD) – chosen by Cheapflights users on 67% of one-stop itineraries from Toronto Pearson Intl Airport to St. Louis on Cheapflights.
What’s the cheapest layover airport for flights from Toronto Pearson Intl Airport to St. Louis?
Average round-trip fare for 1-stop flights from Toronto Pearson Intl Airport to St. Louis, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Chicago (ORD) is the most affordable 1-stop option, with an average round-trip price of C$ 677.
What’s the fastest layover option from Toronto Pearson Intl Airport to St. Louis?
Shortest average travel time for 1-stop one-way flights from Toronto Pearson Intl Airport to St. Louis, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Detroit (DTW) have the shortest average one-way travel time for 1-stop routes: 4h 55m.
Which airport typically offers the quickest layover for flights from Toronto Pearson Intl Airport to St. Louis?
Average layover duration for 1-stop one-way flights from Toronto Pearson Intl Airport to St. Louis, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Detroit (DTW) offer the fastest connection on this route, with an average layover time of 1h 18m.
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 4 December 2025.
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 9h 01m. Fly via American 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$ 348, 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 49% 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 United Airlines (84%), Air Canada (81%) or Jazz (81%) 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$ 895, our data shows the cheapest flight currently is C$ 336. When looking at the most popular route, (Toronto Pearson Intl - Lambert-St Louis), you can expect to pay C$ 357 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, October is the cheapest month in which you can book a flight from Toronto Pearson Intl Airport to St. Louis (average of C$ 391). Flying from Toronto Pearson Intl Airport to St. Louis in January is currently the most expensive (average of C$ 569). 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 4 December 2025.
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 4 December 2025.
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.
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
We value your privacy
Cheapflights and its partners wish to use cookies or similar technologies to store and/or access information on and about your device and process personal data such as your IP address, device identifiers etc., in order to improve your experience on the site, to analyze navigation, to offer and measure personalized advertising, and to facilitate sharing on social networks. We also allow the use of third-party cookies (including those from our advertising partners) on our sites.
By clicking 'Accept', you consent to your data being processed by 0 vendors on this web site for the purposes described in this notice. You can review the vendors and their individual processing purposes on the .
To review individual processing purposes and cookie categories, please click ’Select individual purposes’. You can review and update your choices anytime by clicking the ’Privacy Preferences’ link in the page side navigation.