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St. Louis

$166+ 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 5/8. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — STL
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
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 April, booked 75 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 March 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$371
(Kiwi.com)

One-way from

$166
(Kiwi.com)

Popular in

September

Cheapest in

May

Average price

$499

Good round-trip deal

$370 or less

Good one-way deal

$246 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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High demand for flights, 0% potential price rise
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Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in March 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 March 28, 2025.

This Kiwi.com deal was found by Cheapflights users on 3/27. 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.
Tue 4/84:15 pmYYZ - STL
1 stop8h 31mMultiple Airlines
Tue 5/69:50 amSTL - YYZ
2 stops10h 18mMultiple Airlines
Deal found 3/27$371
This Booking.com deal was found by Cheapflights users on 3/27. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/111:30 amYYZ - STL
Nonstop2h 06mAir Canada
Sun 5/41:30 pmSTL - YYZ
1 stop7h 09mAir Canada
Deal found 3/27$376
This Delta deal was found by Cheapflights users on 3/27. 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.
Wed 5/2110:20 amYYZ - STL
1 stop8h 42mDelta
Tue 5/275:40 pmSTL - YYZ
1 stop5h 16mDelta
Deal found 3/27$381
This United Airlines deal was found by Cheapflights users on 3/26. 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.
Tue 7/297:20 amYYZ - STL
2 stops9h 27mUnited Airlines
Wed 8/61:20 pmSTL - YYZ
2 stops7h 54mUnited Airlines
Deal found 3/26$401
This Trip.com deal was found by Cheapflights users on 3/27. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/219:45 amYYZ - STL
1 stop12h 51mWestJet
Fri 4/256:50 amSTL - YYZ
1 stop15h 05mWestJet
Deal found 3/27$441
This Alaska Airlines deal was found by Cheapflights users on 3/27. 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.
Wed 4/236:30 amYYZ - STL
2 stops18h 29mAlaska Airlines
Wed 4/306:30 amSTL - YYZ
1 stop31h 30mAlaska Airlines
Deal found 3/27$737
This Lufthansa deal was found by Cheapflights users on 3/27. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/106:20 pmYYZ - STL
1 stop20h 10mLufthansa
Fri 5/93:30 pmSTL - YYZ
1 stop20h 10mLufthansa
Deal found 3/27$11,554

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 March 28, 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 4/8

4:15 pm-11:46 pm

1 stop8h 31m

Lambert-St Louis

Tue 5/6

9:50 am-9:08 pm

2 stops10h 18m

$371

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Thu 5/1

11:30 am-12:36 pm

Nonstop2h 06m

Lambert-St Louis

Sun 5/4

1:30 pm-9:39 pm

1 stop7h 09m

$376

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Wed 5/21

10:20 am-6:02 pm

1 stop8h 42m

Lambert-St Louis

Tue 5/27

5:40 pm-11:56 pm

1 stop5h 16m

$381

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Tue 7/29

6:00 pm-11:34 pm

1 stop6h 34m

Lambert-St Louis

Wed 8/6

4:00 pm-7:00 pm

Nonstop2h 00m

$401

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Mon 4/21

9:45 am-9:36 pm

1 stop12h 51m

Lambert-St Louis

Fri 4/25

6:50 am-10:55 pm

1 stop15h 05m

$441

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Wed 4/23

6:30 am-11:59 pm

2 stops18h 29m

Lambert-St Louis

Wed 4/30

6:30 am-3:00 pm

1 stop31h 30m

$737

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Thu 4/10

6:20 pm-1:30 pm

1 stop20h 10m

Lambert-St Louis

Fri 5/9

3:30 pm-12:40 pm

1 stop20h 10m

$11,554

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Thu 5/8

4:00 pm-12:06 am

1 stop9h 06m

$166

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Mon 5/5

10:20 am-6:18 pm

1 stop8h 58m

$208

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Sat 5/31

11:30 am-12:36 pm

Nonstop2h 06m

$209

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Showing 1-10 of 12 results
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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 March.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
SmartFaresPrice Accuracy1 starTrust Score*3 stars

*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 FlightHub the most. FlightHub 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 March 21, 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 75 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 March 28, 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 39% 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 March 28, 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
9,798 reviews

Crew

8.5

Food

7.1

Overall

8.0

Entertainment

7.1

Comfort

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Alaska Airlines
8.0
Very good
9,798 reviews
Alaska Airlines
8.0
Very good
9,798 reviews

Crew

8.5

Food

7.1

Overall

8.0

Entertainment

7.1

Comfort

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Delta
8.0
Very good
7,896 reviews
Alaska Airlines
8.0
Very good
9,798 reviews

Crew

8.5

Food

7.1

Overall

8.0

Entertainment

7.1

Comfort

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
United Airlines
7.4
Good
8,603 reviews
Alaska Airlines
8.0
Very good
9,798 reviews

Crew

8.5

Food

7.1

Overall

8.0

Entertainment

7.1

Comfort

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
WestJet
7.2
Good
2,785 reviews
Alaska Airlines
8.0
Very good
9,798 reviews

Crew

8.5

Food

7.1

Overall

8.0

Entertainment

7.1

Comfort

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Air Canada
7.0
Good
8,986 reviews
Alaska Airlines
8.0
Very good
9,798 reviews

Crew

8.5

Food

7.1

Overall

8.0

Entertainment

7.1

Comfort

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

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 1 airline.

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

    Flying on Air Canada is currently your cheapest option to St. Louis, with prices starting at $376. Additional round-trip tickets that might be worth considering are offered by Delta and United Airlines, with the lowest prices starting at $381 and $401, 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 Delta ($208), Air Canada ($209), and United Airlines ($238).

  • 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 $223. While the most popular route (Toronto Pearson Intl - Lambert-St Louis) can be booked for $310 on average our data indicates $538 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
Fairview Heights
Maryland 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 airline flying from Pearson Intl to St. Louis

Discover the top airline 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 March 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$361Average$458FlexibilityNo cancel feeOn-time67%
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