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St. Louis

$154+ Cheap flights from Pearson Intl (YYZ) to St. Louis (STL)

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 5/28. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — STL
abr. 22 — abr. 291
mar. 4/22
mar. 4/29
1 adult, Economy
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Cheapflights Tip: The best prices from Toronto Pearson Intl to Lambert-St Louis are usually found in May or August, booked 90 days in advance, depart on a Thursday or Friday and return on a Thursday

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 abril 17, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$375
(United Airlines)

One-way from

$154
(Kiwi.com)

Popular in

December

Cheapest in

May

Average price

$455

Good round-trip deal

$370 or less

Good one-way deal

$310 or less
Provider with most accurate pricing for Toronto Pearson Intl-Lambert-St Louis flight deals.
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Provider most trusted by Cheapflights users for Toronto Pearson Intl-Lambert-St Louis flights.
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From Toronto Pearson Intl to Lambert-St Louis
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One-way flight from Toronto Pearson Intl to Lambert-St Louis
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Highest demand for flights based on searches. 7% potential increase in price ($38 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Price to beat on a round-trip flight from Toronto Pearson Intl to Lambert-St Louis.
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Price to beat on a one-way flight from Toronto Pearson Intl to Lambert-St Louis.
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Find flight deals from Pearson Intl to St. Louis

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 abril 17, 2025.

This United Airlines deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 5/2111:30 amYYZ - STL
Nonstop2h 06mUnited Airlines
mar. 5/278:10 amSTL - YYZ
1 stop9h 22mUnited Airlines
Deal found 4/17$375
This Air Canada deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 5/812:00 pmYYZ - STL
1 stop4h 47mAir Canada
dom. 5/111:30 pmSTL - YYZ
1 stop7h 09mAir Canada
Deal found 4/17$378
This Delta deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 5/217:21 pmYYZ - STL
1 stop5h 05mDelta
lun. 5/265:40 pmSTL - YYZ
1 stop5h 15mDelta
Deal found 4/16$380
This American Airlines deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/307:02 amYYZ - STL
1 stop8h 42mAmerican Airlines
jue. 9/118:08 amSTL - YYZ
1 stop5h 18mAmerican Airlines
Deal found 4/17$389
This Kiwi.com deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 4/294:00 pmYYZ - STL
1 stop9h 04mMultiple Airlines
jue. 5/19:50 amSTL - YYZ
2 stops10h 18mMultiple Airlines
Deal found 4/16$406
This WestJet deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 5/216:30 amYYZ - STL
1 stop5h 17mWestJet
mar. 5/276:00 amSTL - YYZ
2 stops11h 04mWestJet
Deal found 4/15$462
This Alaska Airlines deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 5/304:45 pmYYZ - STL
2 stops18h 06mAlaska Airlines
lun. 6/25:00 amSTL - YYZ
2 stops33h 00mAlaska Airlines
Deal found 4/16$805

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 2,558,603 searches. Data last updated abril 17, 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

mié. 5/21

11:30 am-12:36 pm

Nonstop2h 06m

Lambert-St Louis

mar. 5/27

8:10 am-6:32 pm

1 stop9h 22m

$375

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

jue. 5/8

12:00 pm-3:47 pm

1 stop4h 47m

Lambert-St Louis

dom. 5/11

1:30 pm-9:39 pm

1 stop7h 09m

$378

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

mié. 5/21

7:21 pm-11:26 pm

1 stop5h 05m

Lambert-St Louis

lun. 5/26

5:40 pm-11:55 pm

1 stop5h 15m

$380

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

sáb. 8/30

7:02 am-2:44 pm

1 stop8h 42m

Lambert-St Louis

jue. 9/11

8:08 am-2:26 pm

1 stop5h 18m

$389

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

mar. 4/29

4:00 pm-12:04 am

1 stop9h 04m

Lambert-St Louis

jue. 5/1

9:50 am-9:08 pm

2 stops10h 18m

$406

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

mié. 5/21

6:30 am-10:47 am

1 stop5h 17m

Lambert-St Louis

mar. 5/27

6:00 am-6:04 pm

2 stops11h 04m

$462

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

vie. 5/30

4:45 pm-9:51 am

2 stops18h 06m

Lambert-St Louis

lun. 6/2

5:00 am-3:00 pm

2 stops33h 00m

$805

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

mié. 5/28

2:20 pm-9:15 am

1 stop19h 55m

$154

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

jue. 5/1

6:30 pm-7:43 pm

Nonstop2h 13m

$204

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

jue. 5/1

7:21 pm-11:34 pm

1 stop5h 13m

$218

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/16

Showing 1-10 of 13 results
1
2

Compare providers for flights from Pearson Intl to St. Louis

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Pearson Intl to St. Louis in April.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
SmartFaresPrice Accuracy1 starTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Toronto Pearson Intl Airport-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Toronto Pearson Intl Airport-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Toronto Pearson Intl Airport-St. Louis flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Toronto Pearson Intl Airport-St. Louis flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Toronto Pearson Intl Airport-St. Louis flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 April 11, 2025.

To ensure you get the cheapest price possible for a flight from Toronto Pearson Intl Airport to St. Louis, you should look to book at least 84 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Toronto Pearson Intl Airport to St. Louis?

Currently, August is the cheapest month in which you can book a flight from Toronto Pearson Intl Airport to St. Louis (average of $311). Flying from Toronto Pearson Intl Airport to St. Louis in March is currently the most expensive (average of $356). 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 abril 17, 2025.

It’s typically best to fly out from Toronto Pearson Intl Airport to St. Louis in the afternoon. Doing so could potentially save you 40% on the flight price compared to flying at noon, which is usually more expensive.

Rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

Temperature in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature totals by month.

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

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 abril 17, 2025.
Read through reviews of airlines operating flights from Toronto to St. Louis, such as Alaska Airlines, Delta and United Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,887 reviews

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Alaska Airlines
8.0
Very good
9,887 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Delta
8.0
Very good
7,916 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
United Airlines
7.4
Good
8,667 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
WestJet
7.2
Good
2,809 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

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?

    Located just 12.7 mi from the city center, Lambert-St Louis is the airport most travelers will use when flying to St. Louis from Toronto Pearson Intl. Booking flights from Toronto Pearson Intl to Lambert-St Louis (STL) should be relatively easy as there is 1 daily inbound flight from Toronto Pearson Intl from 2 different airlines.

  • What are the cheapest airlines flying from Toronto Pearson Intl Airport to St. Louis round-trip?

    Flying on United Airlines is currently your cheapest option to St. Louis, with prices starting at $375. Additional round-trip tickets that might be worth considering are offered by Air Canada and Delta, with the lowest prices starting at $378 and $380, respectively. You may be able to fly from Toronto Pearson Intl Airport to St. Louis for 24% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Toronto Pearson Intl Airport to St. Louis one-way?

    The cheapest airlines for a one-way flight from Toronto Pearson Intl Airport to St. Louis are Air Canada ($204), Delta ($218), and United Airlines ($243).

  • 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 (79%), Jazz (79%) or United Airlines (79%) 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?

    Looking at all options, your cheapest flight can be booked for $213. While the most popular route (Toronto Pearson Intl - Lambert-St Louis) can be booked for $308 on average our data indicates $395 when flying from Toronto Pearson Intl Airport to St. Louis.

  • Can I find deals for flights from Pearson Intl to St. Louis that include hotel bookings?

    Yes. In addition to deals on Pearson Intl to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Pearson Intl to St. Louis?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Pearson Intl to St. Louis.

  • 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, August is the cheapest month in which you can book a flight from Toronto Pearson Intl Airport to St. Louis (average of $311). Flying from Toronto Pearson Intl Airport to St. Louis in March is currently the most expensive (average of $356). 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.

See more FAQs

Traveling to a place near Toronto Pearson Intl Airport?

Book flights to Toronto Pearson Intl Airport if you plan to visit one of these locations
Fenton
Maryland Heights
Fairview Heights
Collinsville
Wentzville
Eureka
St. Peters
Festus
Glencoe
Alton
Farmington
Chesterfield

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Alternative routes for Pearson Intl to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.
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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 2,558,603 searches. Data last updated abril 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$356Average$499FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$371Average$573FlexibilityNo cancel feeOn-time69%

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