Cheap flights from Toronto Pearson Intl Airport to St. Louis from C$ 212
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 29/1. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — STL
6 Dec — 13 Dec1
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 May or June, booked 21 days in advance, depart on a Thursday or Tuesday and return on a Wednesday
Find 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 6 November 2025.
Thu 4/121:10 p.m.YYZ - STL
1 stop11h 28mAmerican Airlines
Mon 15/125:15 a.m.STL - YYZ
1 stop9h 48mAmerican Airlines
Deal found 5/11C$ 381
Fri 5/1210:55 a.m.YYZ - STL
1 stop12h 38mMultiple Airlines
Mon 8/123:30 p.m.STL - YYZ
1 stop7h 55mMultiple Airlines
Deal found 5/11C$ 405
Mon 15/127:15 a.m.YYZ - STL
1 stop16h 18mMultiple Airlines
Wed 17/123:30 p.m.STL - YYZ
1 stop7h 41mMultiple Airlines
Deal found 5/11C$ 439
Thu 4/125:15 p.m.YYZ - STL
1 stop16h 44mMultiple Airlines
Mon 15/123:30 p.m.STL - YYZ
1 stop21h 50mMultiple Airlines
Deal found 4/11C$ 445
Tue 2/129:30 p.m.YYZ - STL
2 stops38h 37mMultiple Airlines
Tue 9/123:30 p.m.STL - YYZ
1 stop21h 43mMultiple Airlines
Deal found 4/11C$ 456
Wed 3/125:15 p.m.YYZ - STL
2 stops18h 52mMultiple Airlines
Sun 7/123:30 p.m.STL - YYZ
1 stop27h 30mMultiple Airlines
Deal found 3/11C$ 470
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 6 November 2025.
Fri 5/126:00 a.m.YYZ - STL
1 stop8h 29mAmerican Airlines
Mon 8/128:38 a.m.STL - YYZ
1 stop8h 06mAmerican Airlines
Deal found 5/11C$ 381
Thu 4/125:15 p.m.YYZ - STL
1 stop16h 44mMultiple Airlines
Mon 15/123:30 p.m.STL - YYZ
1 stop21h 50mMultiple Airlines
Deal found 4/11C$ 445
Fri 27/32:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Mon 30/34:05 p.m.STL - YYZ
Nonstop1h 57mAir Canada
Deal found 5/11C$ 521
Thu 4/121:10 p.m.YYZ - STL
1 stop11h 28mAmerican Airlines
Mon 15/125:15 a.m.STL - YYZ
1 stop9h 48mAmerican Airlines
Deal found 5/11C$ 381
Tue 24/26:00 a.m.YYZ - STL
1 stop8h 49mAmerican Airlines
Sat 28/26:33 p.m.STL - YYZ
1 stop15h 24mAmerican Airlines
Deal found 3/11C$ 431
Wed 3/1210:55 a.m.YYZ - STL
1 stop12h 38mMultiple Airlines
Sun 7/123:30 p.m.STL - YYZ
1 stop27h 30mMultiple Airlines
Deal found 3/11C$ 494
Fri 5/122:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Mon 8/124:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Deal found 5/11C$ 521
Sat 22/117:10 a.m.YYZ - STL
1 stop17h 47mMultiple Airlines
Mon 24/119:54 p.m.STL - YYZ
1 stop21h 01mMultiple Airlines
Deal found 6/11C$ 508
Tue 24/22:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Sat 28/24:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Deal found 4/11C$ 542
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 6 November 2025.
Sat 22/112:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Mon 24/114:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Deal found 6/11C$ 521
Tue 24/22:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Sat 28/24:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Deal found 4/11C$ 542
Tue 25/112:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Fri 28/114:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Deal found 5/11C$ 543
Mon 15/122:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Wed 17/124:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Deal found 5/11C$ 641
Tue 23/122:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Tue 30/124:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Deal found 6/11C$ 704
Tue 2/122:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Tue 9/124:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Deal found 4/11C$ 709
Fri 17/42:10 p.m.YYZ - STL
Nonstop2h 14mAir Canada
Sun 19/44:05 p.m.STL - YYZ
Nonstop1h 57mAir Canada
Deal found 4/11C$ 719
Fri 19/122:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Sun 4/14:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Deal found 5/11C$ 810
Thu 20/112:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Sun 23/114:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Deal found 3/11C$ 813
Wed 3/122:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Sun 7/124:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Deal found 3/11C$ 820
Last-minute flights from Pearson Intl to St. Louis
Discover last-minute flight deals from Pearson Intl to St. Louis. Data last updated 6 November 2025 and is based on user searches.
Tue 2/129:30 p.m.YYZ - STL
2 stops38h 37mMultiple Airlines
Tue 9/123:30 p.m.STL - YYZ
1 stop21h 43mMultiple Airlines
Deal found 4/11C$ 456
Wed 3/125:15 p.m.YYZ - STL
2 stops18h 52mMultiple Airlines
Sun 7/123:30 p.m.STL - YYZ
1 stop27h 30mMultiple Airlines
Deal found 3/11C$ 470
Thu 4/121:10 p.m.YYZ - STL
1 stop11h 28mAmerican Airlines
Mon 15/125:15 a.m.STL - YYZ
1 stop9h 48mAmerican Airlines
Deal found 5/11C$ 381
Thu 4/125:15 p.m.YYZ - STL
1 stop16h 44mMultiple Airlines
Mon 15/123:30 p.m.STL - YYZ
1 stop21h 50mMultiple Airlines
Deal found 4/11C$ 445
Fri 5/1210:55 a.m.YYZ - STL
1 stop12h 38mMultiple Airlines
Mon 8/123:30 p.m.STL - YYZ
1 stop7h 55mMultiple Airlines
Deal found 5/11C$ 405
Mon 15/127:15 a.m.YYZ - STL
1 stop16h 18mMultiple Airlines
Wed 17/123:30 p.m.STL - YYZ
1 stop7h 41mMultiple Airlines
Deal found 5/11C$ 439
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 6 November 2025.
Thu 29/17:10 a.m.YYZ - STL
1 stop16h 23mMultiple Airlines
Deal found 5/11C$ 212
Mon 24/1112:50 p.m.YYZ - STL
1 stop12h 07mMultiple Airlines
Deal found 4/11C$ 213
Thu 19/211:38 a.m.YYZ - STL
1 stop12h 52mAmerican Airlines
Deal found 3/11C$ 217
Mon 24/116:00 a.m.YYZ - STL
1 stop10h 12mAmerican Airlines
Deal found 4/11C$ 257
Wed 12/117:15 a.m.YYZ - STL
2 stops31h 02mMultiple Airlines
Deal found 5/11C$ 260
Thu 19/28:35 p.m.YYZ - STL
2 stops38h 27mMultiple Airlines
Deal found 3/11C$ 268
Mon 17/1112:50 p.m.YYZ - STL
3 stops45h 17mMultiple Airlines
Deal found 5/11C$ 271
Sat 13/126:00 a.m.YYZ - STL
1 stop11h 19mAmerican Airlines
Deal found 5/11C$ 272
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 6 November 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 6 November 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
Fri 5/12
6:00 a.m.-1:29 p.m.
1 stop8h 29m
Lambert-St Louis
Mon 8/12
8:38 a.m.-5:44 p.m.
1 stop8h 06m
C$ 381
TorontoSt. Louis
YYZ - STL
YYZSTL
Toronto Pearson Intl
Thu 4/12
1:10 p.m.-11:38 p.m.
1 stop11h 28m
Lambert-St Louis
Mon 15/12
5:15 a.m.-4:03 p.m.
1 stop9h 48m
C$ 381
TorontoSt. Louis
YYZ - STL
YYZSTL
Toronto Pearson Intl
Tue 24/2
6:00 a.m.-1:49 p.m.
1 stop8h 49m
Lambert-St Louis
Sat 28/2
6:33 p.m.-10:57 a.m.
1 stop15h 24m
C$ 431
TorontoSt. Louis
YYZ - STL
YYZSTL
Toronto Pearson Intl
Thu 4/12
5:15 p.m.-8:59 a.m.
1 stop16h 44m
Lambert-St Louis
Mon 15/12
3:30 p.m.-2:20 p.m.
1 stop21h 50m
C$ 445
TorontoSt. Louis
YYZ - STL
YYZSTL
Toronto Pearson Intl
Wed 3/12
10:55 a.m.-10:33 p.m.
1 stop12h 38m
Lambert-St Louis
Sun 7/12
3:30 p.m.-8:00 p.m.
1 stop27h 30m
C$ 494
TorontoSt. Louis
YYZ - STL
YYZSTL
Toronto Pearson Intl
Sat 22/11
7:10 a.m.-11:57 p.m.
1 stop17h 47m
Lambert-St Louis
Mon 24/11
9:54 p.m.-7:55 p.m.
1 stop21h 01m
C$ 508
TorontoSt. Louis
YYZ - STL
YYZSTL
Toronto Pearson Intl
Fri 27/3
2:00 p.m.-3:29 p.m.
Nonstop2h 29m
Lambert-St Louis
Mon 30/3
4:05 p.m.-7:02 p.m.
Nonstop1h 57m
C$ 521
TorontoSt. Louis
YYZ - STL
YYZSTL
Toronto Pearson Intl
Fri 5/12
2:00 p.m.-3:29 p.m.
Nonstop2h 29m
Lambert-St Louis
Mon 8/12
4:05 p.m.-7:06 p.m.
Nonstop2h 01m
C$ 521
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$ 542
TorontoSt. Louis
YYZ - STL
YYZSTL
Toronto Pearson Intl
Thu 29/1
7:10 a.m.-10:33 p.m.
1 stop16h 23m
C$ 212
Flights are sorted by cheapest round-trip flights first.
Deals found on 5/11
Showing 1-10 of 18 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
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 31 October 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 21 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$ 424). Flying from Toronto Pearson Intl Airport to St. Louis in January is currently the most expensive (average of C$ 615). 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 6 November 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 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.
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 6 November 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 8h 29m. 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?
American Airlines, at C$ 439, was found to be the cheapest airline from Toronto Pearson Intl Airport to St. Louis.Alternate airlines to your destination round-trip include United Airlines and Air Canada. American Airlines is 36% 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 (86%), Jazz (86%) or United Airlines (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$ 672, our data shows the cheapest flight currently is C$ 507. When looking at the most popular route, (Toronto Pearson Intl - Lambert-St Louis), you can expect to pay C$ 405 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$ 424). Flying from Toronto Pearson Intl Airport to St. Louis in January is currently the most expensive (average of C$ 615). 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 6 November 2025.
Explore flights to St. Louis departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 6 November 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 6 November 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.
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