Cheap flights from Toronto Pearson Intl Airport to St. Louis from C$ 252
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/10. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — STL
18 Oct — 25 Oct1
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 January or February, booked 53 days in advance, depart on a Saturday 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.
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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 18 September 2026.
Thu 29/109:35 a.m. -
2 stops33h 05m
Thu 5/114:26 p.m. -
1 stop20h 14m
Deal found 14/9C$ 520
Sun 18/104:45 p.m. -
2 stops21h 36m
Sat 24/104:30 p.m. -
1 stop20h 10m
Deal found 15/9C$ 526
Thu 22/107:45 a.m. -
1 stop16h 28m
Mon 26/104:30 p.m. -
1 stop20h 40m
Deal found 13/9C$ 529
Sun 22/112:25 p.m. -
2 stops42h 29m
Wed 2/126:13 p.m. -
1 stop18h 27m
Deal found 17/9C$ 571
Tue 20/1011:09 a.m. -
1 stop10h 23m
Tue 27/107:03 a.m. -
1 stop8h 44m
Deal found 15/9C$ 603
Wed 7/1011:09 a.m. -
1 stop10h 23m
Wed 14/107:03 a.m. -
1 stop8h 44m
Deal found 14/9C$ 610
Sat 17/1011:39 a.m. -
1 stop10h 34m
Sat 31/107:03 a.m. -
1 stop8h 44m
Deal found 15/9C$ 616
Mon 12/109:50 a.m. -
1 stop14h 23m
Thu 15/104:30 p.m. -
1 stop23h 10m
Deal found 13/9C$ 617
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 18 September 2026.
Tue 6/108:00 p.m. -
1 stop13h 48m
Wed 7/1011:35 a.m. -
1 stop5h 21m
Deal found 14/9C$ 750
Sat 24/108:50 a.m. -
1 stop6h 26m
Mon 26/104:05 p.m. -
Nonstop1h 54m
Deal found 12/9C$ 758
Fri 16/106:15 a.m. -
1 stop5h 36m
Mon 19/102:25 p.m. -
1 stop6h 34m
Deal found 15/9C$ 758
Sat 3/107:00 a.m. -
1 stop6h 14m
Sun 4/106:00 a.m. -
2 stops7h 19m
Deal found 13/9C$ 758
Sat 17/107:30 a.m. -
1 stop5h 03m
Sat 31/104:05 p.m. -
Nonstop1h 54m
Deal found 15/9C$ 764
Sat 10/103:00 p.m. -
2 stops8h 58m
Mon 12/103:11 p.m. -
1 stop7h 48m
Deal found 13/9C$ 758
Wed 25/113:35 p.m. -
1 stop4h 48m
Sun 29/117:30 a.m. -
1 stop5h 33m
Deal found 14/9C$ 758
Fri 30/1012:55 p.m. -
2 stops9h 45m
Fri 6/1111:29 a.m. -
1 stop5h 20m
Deal found 15/9C$ 758
Wed 14/1010:15 a.m. -
1 stop6h 28m
Mon 19/108:00 a.m. -
1 stop8h 56m
Deal found 13/9C$ 758
Sun 18/108:50 a.m. -
1 stop6h 27m
Sun 25/103:15 p.m. -
1 stop5h 00m
Deal found 13/9C$ 758
Tue 13/1011:00 a.m. -
1 stop5h 43m
Sat 17/108:00 a.m. -
1 stop4h 42m
Deal found 13/9C$ 758
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 18 September 2026.
Thu 29/102:10 p.m. -
Nonstop2h 13m
Thu 5/114:05 p.m. -
Nonstop2h 00m
Deal found 14/9C$ 691
Fri 6/112:10 p.m. -
Nonstop2h 16m
Mon 9/114:05 p.m. -
Nonstop2h 00m
Deal found 15/9C$ 706
Tue 6/1012:55 p.m. -
Nonstop2h 05m
Thu 8/108:55 a.m. -
Nonstop1h 54m
Deal found 15/9C$ 722
Sat 10/107:15 p.m. -
Nonstop2h 05m
Mon 12/108:55 a.m. -
Nonstop1h 54m
Deal found 15/9C$ 741
Tue 20/107:15 p.m. -
Nonstop2h 05m
Tue 27/104:05 p.m. -
Nonstop1h 54m
Deal found 14/9C$ 744
Tue 6/107:15 p.m. -
Nonstop2h 05m
Wed 7/108:55 a.m. -
Nonstop1h 54m
Deal found 15/9C$ 748
Thu 22/1012:55 p.m. -
Nonstop2h 05m
Mon 26/104:05 p.m. -
Nonstop1h 54m
Deal found 15/9C$ 750
Tue 13/1012:55 p.m. -
Nonstop2h 05m
Sun 18/102:40 p.m. -
Nonstop1h 54m
Deal found 14/9C$ 753
Mon 5/107:15 p.m. -
Nonstop2h 05m
Tue 6/102:40 p.m. -
Nonstop1h 54m
Deal found 15/9C$ 789
Sun 27/912:55 p.m. -
Nonstop2h 05m
Tue 29/92:40 p.m. -
Nonstop1h 54m
Deal found 15/9C$ 832
Last-minute flights from Pearson Intl to St. Louis
Discover last-minute flight deals from Pearson Intl to St. Louis. Data last updated 18 September 2026 and is based on user searches.
Mon 5/103:14 p.m. -
1 stop10h 05m
Thu 8/105:00 a.m. -
1 stop8h 33m
Deal found 17/9C$ 607
Wed 7/1011:09 a.m. -
1 stop10h 23m
Wed 14/107:03 a.m. -
1 stop8h 44m
Deal found 14/9C$ 610
Fri 16/101:15 p.m. -
1 stop8h 42m
Sat 17/105:00 a.m. -
1 stop8h 33m
Deal found 18/9C$ 498
Sat 17/1011:39 a.m. -
1 stop10h 34m
Sat 31/107:03 a.m. -
1 stop8h 44m
Deal found 15/9C$ 616
Sun 18/104:45 p.m. -
2 stops21h 36m
Sat 24/104:30 p.m. -
1 stop20h 10m
Deal found 15/9C$ 526
Tue 20/101:15 p.m. -
1 stop12h 04m
Tue 27/105:00 a.m. -
1 stop8h 33m
Deal found 17/9C$ 448
Thu 22/107:45 a.m. -
1 stop16h 28m
Mon 26/104:30 p.m. -
1 stop20h 40m
Deal found 13/9C$ 529
Thu 29/109:35 a.m. -
2 stops33h 05m
Thu 5/114:26 p.m. -
1 stop20h 14m
Deal found 14/9C$ 520
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 18 September 2026.
Tue 6/109:30 a.m. -
2 stops28h 40m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 15/9C$ 252
Mon 19/103:14 p.m. -
1 stop10h 05m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 17/9C$ 264
Tue 27/109:35 a.m. -
2 stops33h 05m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 16/9C$ 276
Sun 1/119:20 a.m. -
2 stops33h 20m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 17/9C$ 284
Mon 12/104:45 p.m. -
2 stops21h 36m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 15/9C$ 297
Mon 19/104:45 p.m. -
2 stops21h 36m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 16/9C$ 305
Mon 2/116:30 a.m. -
2 stops12h 10m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 17/9C$ 308
Thu 15/107:00 a.m. -
2 stops35h 40m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 14/9C$ 312
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 18 September 2026.
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 7,457,451 searches. Data last updated 18 September 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
Fly to
Route
Depart
Return
Price
Cheapest round-trip
TorontoSt. Louis
YYZ Toronto Pearson Intl - STL Lambert-St Louis
YYZSTL
Toronto Pearson Intl
Tue 6/10
9:30 a.m.-1:10 p.m.
2 stops28h 40m
Lambert-St Louis
Wed 31/12
12:00 a.m.-1:00 a.m.
Nonstop0h 00m
C$ 252
TorontoSt. Louis
YYZ Toronto Pearson Intl - STL Lambert-St Louis
YYZSTL
Toronto Pearson Intl
Mon 19/10
4:45 p.m.-1:21 p.m.
2 stops21h 36m
Lambert-St Louis
Wed 31/12
12:00 a.m.-1:00 a.m.
Nonstop0h 00m
C$ 316
TorontoSt. Louis
YYZ Toronto Pearson Intl - STL Lambert-St Louis
YYZSTL
Toronto Pearson Intl
Sat 10/10
1:15 p.m.-9:13 p.m.
1 stop8h 58m
Lambert-St Louis
Wed 31/12
12:00 a.m.-1:00 a.m.
Nonstop0h 00m
C$ 358
TorontoSt. Louis
YYZ Toronto Pearson Intl - STL Lambert-St Louis
YYZSTL
Toronto Pearson Intl
Tue 6/10
11:40 a.m.-6:16 p.m.
1 stop7h 36m
Lambert-St Louis
Wed 31/12
12:00 a.m.-1:00 a.m.
Nonstop0h 00m
C$ 360
TorontoSt. Louis
YYZ Toronto Pearson Intl - STL Lambert-St Louis
YYZSTL
Toronto Pearson Intl
Tue 27/10
7:55 a.m.-3:39 p.m.
1 stop8h 44m
Lambert-St Louis
Wed 31/12
12:00 a.m.-1:00 a.m.
Nonstop0h 00m
C$ 401
TorontoSt. Louis
YYZ Toronto Pearson Intl - STL Lambert-St Louis
YYZSTL
Toronto Pearson Intl
Sat 3/10
4:50 p.m.-1:10 p.m.
3 stops45h 20m
Lambert-St Louis
Wed 31/12
12:00 a.m.-1:00 a.m.
Nonstop0h 00m
C$ 406
Quickest round-trip
TorontoSt. Louis
YYZ Toronto Pearson Intl - STL Lambert-St Louis
YYZSTL
Toronto Pearson Intl
Tue 6/10
12:55 p.m.-2:00 p.m.
Nonstop2h 05m
Lambert-St Louis
Wed 31/12
12:00 a.m.-1:00 a.m.
Nonstop0h 00m
C$ 413
TorontoSt. Louis
YYZ Toronto Pearson Intl - STL Lambert-St Louis
YYZSTL
Toronto Pearson Intl
Sat 3/10
7:15 p.m.-8:20 p.m.
Nonstop2h 05m
Lambert-St Louis
Wed 31/12
12:00 a.m.-1:00 a.m.
Nonstop0h 00m
C$ 413
TorontoSt. Louis
YYZ Toronto Pearson Intl - STL Lambert-St Louis
YYZSTL
Toronto Pearson Intl
Fri 9/10
8:00 p.m.-8:48 a.m.
1 stop13h 48m
Lambert-St Louis
Wed 31/12
12:00 a.m.-1:00 a.m.
Nonstop0h 00m
C$ 420
TorontoSt. Louis
YYZ Toronto Pearson Intl - STL Lambert-St Louis
YYZSTL
Toronto Pearson Intl
Sat 3/10
7:30 a.m.-9:21 p.m.
2 stops14h 51m
Lambert-St Louis
Wed 31/12
12:00 a.m.-1:00 a.m.
Nonstop0h 00m
C$ 420
Flights are sorted by cheapest round-trip flights first.
Deals found on 15/9
Showing 1-10 of 22 resultsSorted by cheapest first
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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.
YYZ-STL
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
Airlines
More
How far ahead should I book a flight from Toronto Pearson Intl Airport to St. Louis?
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 52 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, January is the cheapest month in which you can book a flight from Toronto Pearson Intl Airport to St. Louis (average of C$ 590). Flying from Toronto Pearson Intl Airport to St. Louis in April is currently the most expensive (average of C$ 1,121). 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 18 September 2026.
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 afternoon, which can drop the price by up to 36% versus a flight in the evening.
How much does it cost to fly round-trip from Toronto Pearson Intl Airport to St. Louis?
Airfare is below average for this route at the moment.
Toronto Pearson Intl Airport to St. Louis flights typically cost between C$ 750 and C$ 969 in October.The cheapest round-trip price found within the last 5 days was C$ 448 on American Airlines (20 Oct-27 Oct).
Weekly flight availability from Toronto Pearson Intl Airport to St. Louis
Explore weekly flight availability from Pearson Intl to St. Louis. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 18 September 2026.
The most flights from YYZ to STL are scheduled on a Monday (4 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (4 on average).
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.
Detroit (DTW) is the most affordable 1-stop option, with an average round-trip price of C$ 697.
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 19m.
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 26m.
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 18 September 2026.
See what other customers who have flown with United Airlines and Air Canada 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.
Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
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. 2 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 4 inbound flights 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 13h 48m. Fly via United 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?
Air Canada, at C$ 336, was found to be the cheapest airline from Toronto Pearson Intl Airport to St. Louis. An alternate airline flying to your destination would be United Airlines. Air Canada is 53% 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 (68%), Jazz (68%) or United Airlines (68%) 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$ 817, our data shows the cheapest flight currently is C$ 517. When looking at the most popular route, (Toronto Pearson Intl - Lambert-St Louis), you can expect to pay C$ 664 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, January is the cheapest month in which you can book a flight from Toronto Pearson Intl Airport to St. Louis (average of C$ 590). Flying from Toronto Pearson Intl Airport to St. Louis in April is currently the most expensive (average of C$ 1,121). 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 18 September 2026.
Explore flights to St. Louis departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 18 September 2026.
Top 2 airlines flying from Pearson Intl to St. Louis
Discover the top 2 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 7,457,451 searches. Data last updated 18 September 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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