HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Pearson Intl

$82+ Cheap flights from St. Louis (STL) to Pearson Intl (YYZ)

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 1/22. Fares are subject to change and may not be available on all flights or dates of travel.
STL — YYZ
Dec 23 — Dec 301
Mon 12/23
Mon 12/30
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from St. Louis to Pearson Intl with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

The best prices from Lambert-St Louis to Toronto Pearson Intl are usually found in May or February, booked 82 days in advance, depart on a Wednesday or Tuesday and return on a Wednesday

Cheap flight deals from St. Louis to Pearson Intl

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Pearson Intl (YYZ). 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 December 18, 2024.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$280
(Kiwi.com)

One-way from

$82
(Kiwi.com)

Popular in

November

Cheapest in

May

Average price

$607
Provider with most accurate pricing for Lambert-St Louis-Toronto Pearson Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-Toronto Pearson Intl flights.
Search Deals
From Lambert-St Louis to Toronto Pearson Intl
Search Deals
One-way flight from Lambert-St Louis to Toronto Pearson Intl
Search Deals
High demand for flights, 14% potential price rise
Search Deals
Best time to find cheap flights, 4% potential price drop
Search Deals
Average for round-trip flights in December 2024
Search Deals

Find flight deals from St. Louis to Pearson Intl

Cheapest flights from St. Louis to Pearson Intl
Explore the most affordable flight options available from St. Louis to Pearson Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2024.

This Kiwi.com deal was found by Cheapflights users on 12/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/243:53 pmSTL - YYZ
1 stop18h 52mMultiple Airlines
Tue 12/317:05 amYYZ - STL
1 stop9h 16mMultiple Airlines
Deal found 12/17$456
This American Airlines deal was found by Cheapflights users on 12/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2611:42 amSTL - YYZ
1 stop4h 58mAmerican Airlines
Sat 1/256:15 amYYZ - STL
1 stop8h 52mAmerican Airlines
Deal found 12/16$664
This Air Canada deal was found by Cheapflights users on 12/16. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/265:00 amSTL - YYZ
1 stop6h 31mAir Canada
Sat 1/251:50 pmYYZ - STL
Nonstop2h 16mAir Canada
Deal found 12/16$723
This United Airlines deal was found by Cheapflights users on 12/17. 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.
Wed 12/256:25 amSTL - YYZ
1 stop8h 20mUnited Airlines
Tue 12/311:50 pmYYZ - STL
Nonstop2h 16mUnited Airlines
Deal found 12/17$827
This Delta deal was found by Cheapflights users on 12/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/276:29 amSTL - YYZ
1 stop3h 53mDelta
Sat 12/285:15 pmYYZ - STL
1 stop5h 28mDelta
Deal found 12/17$834
This Kiwi.com deal was found by Cheapflights users on 12/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/255:55 pmSTL - YYZ
1 stop3h 46mWestJet
Fri 12/272:11 pmYYZ - STL
1 stop3h 48mWestJet
Deal found 12/17$1,011
This Alaska Airlines deal was found by Cheapflights users on 12/16. 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.
Tue 12/312:17 pmSTL - YYZ
2 stops23h 50mAlaska Airlines
Thu 1/26:10 amYYZ - STL
2 stops18h 49mAlaska Airlines
Deal found 12/16$1,646

Find flights from St. Louis to Pearson Intl within your budget

Customize your flight search to find flights from St. Louis to Pearson Intl 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 December 18, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Tue 1/14

5:05 pm-11:45 am

1 stop17h 40m

Toronto Pearson Intl

Tue 1/21

7:05 am-2:43 pm

1 stop8h 38m

$280

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Wed 1/8

6:05 am-4:11 pm

1 stop9h 06m

Toronto Pearson Intl

Wed 1/22

5:05 pm-8:58 am

1 stop16h 53m

$443

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Mon 1/13

12:00 pm-9:20 pm

1 stop8h 20m

Toronto Pearson Intl

Wed 1/15

6:15 am-2:07 pm

1 stop8h 52m

$478

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Tue 1/7

2:49 pm-3:05 pm

1 stop23h 16m

Toronto Pearson Intl

Mon 1/13

4:20 pm-1:53 pm

1 stop22h 33m

$496

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Tue 1/7

9:44 am-7:45 pm

1 stop9h 01m

Toronto Pearson Intl

Wed 1/8

6:52 am-2:14 pm

1 stop8h 22m

$517

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Thu 1/16

3:50 pm-6:45 pm

Nonstop1h 55m

Toronto Pearson Intl

Sun 1/19

1:50 pm-3:06 pm

Nonstop2h 16m

$550

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Wed 1/8

10:22 am-11:34 pm

2 stops12h 12m

Toronto Pearson Intl

Fri 1/10

9:30 am-11:14 pm

2 stops14h 44m

$756

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Wed 1/22

5:05 pm-1:55 pm

1 stop19h 50m

$82

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Wed 1/1

7:23 am-9:30 pm

1 stop13h 07m

$266

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Wed 1/22

3:50 pm-6:45 pm

Nonstop1h 55m

$283

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 12 results
1
2

Compare providers for flights from St. Louis to Pearson Intl

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 St. Louis to Pearson Intl in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust 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 St. Louis-Toronto Pearson Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Toronto Pearson Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Toronto Pearson Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on St. Louis-Toronto Pearson Intl Airport 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 St. Louis-Toronto Pearson Intl Airport 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 St. Louis to Pearson Intl

Have a flexible travel schedule? Discover the best time to fly to Pearson Intl from St. Louis 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.

Travel insights for flights from St. Louis to Pearson Intl

Get recent, data-driven insights about flights from St. Louis to Pearson Intl including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from St. Louis to Toronto Pearson Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Pearson Intl. Price data was last updated on December 13, 2024.

Booking 81 days in advance of your planned departure date is, on average, the best time to get cheap flights from St. Louis to Toronto Pearson Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, January is the cheapest month in which you can book a flight from St. Louis to Toronto Pearson Intl Airport (average of $243). Flying from St. Louis to Toronto Pearson Intl Airport in July is currently the most expensive (average of $359). 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 STL to YYZ?

Find hourly flight availability from St. Louis to Pearson Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2024.

It’s optimal to fly from St. Louis to Toronto Pearson Intl Airport at noon. By choosing this option you can save up to 51% on the cost of your flight, compared to a flight in the morning.

Weekly flight availability from St. Louis to Toronto Pearson Intl Airport

Explore weekly flight availability from St. Louis to Pearson Intl. 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 December 18, 2024.

The most flights from STL to YYZ are scheduled on a Monday (2 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (2 on average).

Rainfall in Pearson Intl by month

Plan your trip to Pearson Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Toronto Pearson Intl Airport ranges from 2.0 - 3.3 inches per month. June is typically the wettest month, when rainfall can reach 3.3 in. February is typically the driest time to visit Toronto Pearson Intl Airport when rainfall is around 2.0 in.

Temperature in Pearson Intl by month

Plan your trip to Pearson Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Toronto Pearson Intl Airport, 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 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 21.2 F).

Reviews of airlines servicing Pearson Intl

Get insights into the airlines that provide service to Pearson Intl. 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 Pearson Intl. Reviews last updated December 18, 2024.
See what other customers who have flown with Delta, United Airlines and Air Canada from St. Louis to Toronto have to say. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,552 reviews

Crew

8.5

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Food

7.2

Overall

8.0

Reviews

1 / 10

Things were good, crew was good. It was just the flight itself was very rough. Lots of turbulence, probably one of the shakiest flights I've been on. Kids throwing up, kids crying everywhere because of it.

Alaska Airlines
8.0
Very good
9,552 reviews
Alaska Airlines
8.0
Very good
9,552 reviews

Crew

8.5

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Food

7.2

Overall

8.0

Reviews

1 / 10

Things were good, crew was good. It was just the flight itself was very rough. Lots of turbulence, probably one of the shakiest flights I've been on. Kids throwing up, kids crying everywhere because of it.

Delta
8.0
Very good
8,604 reviews
Alaska Airlines
8.0
Very good
9,552 reviews

Crew

8.5

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Food

7.2

Overall

8.0

Reviews

1 / 10

Things were good, crew was good. It was just the flight itself was very rough. Lots of turbulence, probably one of the shakiest flights I've been on. Kids throwing up, kids crying everywhere because of it.

United Airlines
7.4
Good
9,059 reviews
Alaska Airlines
8.0
Very good
9,552 reviews

Crew

8.5

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Food

7.2

Overall

8.0

Reviews

1 / 10

Things were good, crew was good. It was just the flight itself was very rough. Lots of turbulence, probably one of the shakiest flights I've been on. Kids throwing up, kids crying everywhere because of it.

WestJet
7.3
Good
2,818 reviews
Alaska Airlines
8.0
Very good
9,552 reviews

Crew

8.5

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Food

7.2

Overall

8.0

Reviews

1 / 10

Things were good, crew was good. It was just the flight itself was very rough. Lots of turbulence, probably one of the shakiest flights I've been on. Kids throwing up, kids crying everywhere because of it.

American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,552 reviews

Crew

8.5

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Food

7.2

Overall

8.0

Reviews

1 / 10

Things were good, crew was good. It was just the flight itself was very rough. Lots of turbulence, probably one of the shakiest flights I've been on. Kids throwing up, kids crying everywhere because of it.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Pearson Intl. 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 from for flights from St. Louis to Toronto Pearson Intl?

    If you book a flight to Toronto Pearson Intl from St. Louis, you will be flying from Lambert-St Louis, which is the city’s only airport. Lambert-St Louis (STL) is located 12.7 mi from the center of St. Louis. There are 2 flights from Lambert-St Louis to Toronto Pearson Intl per day from 3 different airlines.

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

    Flying on Delta is currently your cheapest option to Toronto Pearson Intl Airport, with prices starting at $443. Additional round-trip tickets that might be worth considering are offered by American Airlines and Alaska Airlines, with the lowest prices starting at $478 and $496, respectively.

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

    The cheapest airline one-way is American Airlines, with whom users have recently found tickets for as low as $266. However, be on the lookout for offers from United Airlines and Air Canada, as they are both options that can get you from St. Louis to Toronto Pearson Intl Airport for a low price.

  • What are the most reliable airlines from St. Louis to Toronto Pearson Intl Airport?

    Before booking your flight to Toronto Pearson Intl Airport from St. Louis, check out the most reliable airlines to get you to your destination on time: Air Canada (90%), Jazz (90%), United Airlines( 90%).

  • What are the cheapest flights from St. Louis to Toronto Pearson Intl Airport?

    The cheapest flight price from St. Louis to Toronto Pearson Intl Airport is $223. On average you can expect to pay $1,292. The most popular route, (Lambert-St Louis - Toronto Pearson Intl), can usually be booked for $280.

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

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

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

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

  • Can I find deals for business class flights from St. Louis to Pearson Intl?

    Yes. Cheapflights offers flight deals from St. Louis to Pearson Intl 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 St. Louis to Toronto Pearson Intl Airport?

    Currently, January is the cheapest month in which you can book a flight from St. Louis to Toronto Pearson Intl Airport (average of $243). Flying from St. Louis to Toronto Pearson Intl Airport in July is currently the most expensive (average of $359). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 3 airlines flying from St. Louis to Pearson Intl

Discover the top 3 airlines that operate flights from St. Louis to Pearson Intl. 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 December 18, 2024.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$202Average$474FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$225Average$558FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$304Average$553FlexibilityNo cancel feeOn-time71%
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.