Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Toronto Pearson Intl Airport to St. Louis from C$ 202

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 1/4. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — STL
25 Feb — 4 Mar1
1 adult

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 Tuesday and return on a Wednesday

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 20 February 2025.

Round-trip from

C$ 577

One-way from

C$ 202

Popular in

September

Cheapest in

May

Average price

C$ 764

Good round-trip deal

C$ 682 or less

Good one-way deal

C$ 808 or less
21/3-23/3
  • 21/3-23/3
  • 3 total stops
  • 26h 48m total
  • Toronto to St. Louis
Search Deals
1/4
  • 1/4
  • 1 total stop
  • 11h 47m total
  • Toronto to St. Louis
Search Deals
Highest demand for flights based on searches. 0% potential increase in price (C$ 5 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2025
Search Deals
Price to beat on a round-trip flight from Toronto Pearson Intl to Lambert-St Louis.
Search Deals
Price to beat on a one-way flight from Toronto Pearson Intl to Lambert-St Louis.
Search Deals

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 20 February 2025.

Fri 21/36:52 a.m.YYZ - STL
2 stops10h 53mMultiple Airlines
Sun 23/36:47 p.m.STL - YYZ
1 stop15h 55mMultiple Airlines
Deal found 19/2C$ 577
Tue 1/41:40 p.m.YYZ - STL
Nonstop2h 09mAir Canada
Sat 5/43:30 p.m.STL - YYZ
Nonstop2h 00mAir Canada
Deal found 19/2C$ 578
Tue 1/411:30 a.m.YYZ - STL
1 stop11h 48mAmerican Airlines
Sat 5/412:00 p.m.STL - YYZ
1 stop10h 25mAmerican Airlines
Deal found 19/2C$ 594
Tue 1/46:15 a.m.YYZ - STL
2 stops7h 05mUnited Airlines
Sat 5/46:30 a.m.STL - YYZ
1 stop4h 45mUnited Airlines
Deal found 19/2C$ 605
Fri 21/31:50 p.m.YYZ - STL
Nonstop2h 16mLufthansa
Sun 23/35:33 p.m.STL - YYZ
1 stop5h 26mLufthansa
Deal found 19/2C$ 624
Sun 16/36:30 a.m.YYZ - STL
1 stop5h 04mDelta
Sat 22/31:43 p.m.STL - YYZ
1 stop7h 55mDelta
Deal found 19/2C$ 627
Tue 22/49:30 a.m.YYZ - STL
2 stops8h 22mWestJet
Tue 6/511:23 a.m.STL - YYZ
2 stops17h 49mWestJet
Deal found 18/2C$ 679
Wed 19/34:20 p.m.YYZ - STL
2 stops17h 37mAlaska Airlines
Mon 24/36:44 a.m.STL - YYZ
2 stops28h 50mAlaska Airlines
Deal found 19/2C$ 1,033

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

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 20 February 2025.

Fly from

Pearson Intl

Fly to

St. Louis

Route

Depart

Return

Price

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Fri 21/3

6:52 a.m.-4:45 p.m.

2 stops10h 53m

Lambert-St Louis

Sun 23/3

6:47 p.m.-11:42 a.m.

1 stop15h 55m

C$ 577

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Tue 1/4

1:40 p.m.-2:49 p.m.

Nonstop2h 09m

Lambert-St Louis

Sat 5/4

3:30 p.m.-6:30 p.m.

Nonstop2h 00m

C$ 578

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Tue 1/4

11:30 a.m.-10:18 p.m.

1 stop11h 48m

Lambert-St Louis

Sat 5/4

12:00 p.m.-11:25 p.m.

1 stop10h 25m

C$ 594

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Tue 1/4

6:15 a.m.-12:20 p.m.

2 stops7h 05m

Lambert-St Louis

Sat 5/4

6:30 a.m.-12:15 p.m.

1 stop4h 45m

C$ 605

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Fri 21/3

1:50 p.m.-3:06 p.m.

Nonstop2h 16m

Lambert-St Louis

Sun 23/3

5:33 p.m.-11:59 p.m.

1 stop5h 26m

C$ 624

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Mon 24/3

10:05 a.m.-8:52 p.m.

1 stop11h 47m

Lambert-St Louis

Sun 30/3

6:50 a.m.-11:55 a.m.

1 stop4h 05m

C$ 641

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Tue 22/4

9:30 a.m.-4:52 p.m.

2 stops8h 22m

Lambert-St Louis

Tue 6/5

11:23 a.m.-6:12 a.m.

2 stops17h 49m

C$ 679

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Wed 19/3

4:20 p.m.-8:57 a.m.

2 stops17h 37m

Lambert-St Louis

Mon 24/3

6:44 a.m.-12:34 p.m.

2 stops28h 50m

C$ 1,033

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Tue 1/4

7:05 a.m.-5:52 p.m.

1 stop11h 47m

C$ 202

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Sat 3/5

3:00 p.m.-8:01 p.m.

1 stop6h 01m

C$ 327

Flights are sorted by cheapest round-trip flights first.

Deals found on 18/2

Showing 1-10 of 13 results
1
2

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.

Travel insights for flights from Pearson Intl to St. Louis

Get recent, data-driven insights about flights from Pearson Intl to St. Louis including ideal travel times, pricing trends, and 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 14 February 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 75 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$ 365). Flying from Toronto Pearson Intl Airport to St. Louis in September is currently the most expensive (average of C$ 491). 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 20 February 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 4% versus a flight at noon.

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 20 February 2025.

The most flights from YYZ to STL are scheduled on a Wednesday (2 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (1 on average).

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 56.0 - 119.0 mm per month. May is typically the wettest month, when rainfall can reach 119.0 mm. February is typically the driest time to visit St. Louis when rainfall is around 56.0 mm.

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 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 0.0 C).

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 20 February 2025.
To help decide which airline to fly from Toronto to St. Louis, see what other customers have to say about Alaska Airlines, Delta and United Airlines. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,691 reviews
Check prices

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.1

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
9,691 reviews
Alaska Airlines
8.0
Very good
9,691 reviews
Check prices

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.1

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
8,227 reviews
Alaska Airlines
8.0
Very good
9,691 reviews
Check prices

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.1

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
8,768 reviews
Alaska Airlines
8.0
Very good
9,691 reviews
Check prices

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.1

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

American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,691 reviews
Check prices

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.1

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
2,801 reviews
Alaska Airlines
8.0
Very good
9,691 reviews
Check prices

Crew

8.5

Food

7.1

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.1

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?

    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. 3 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.

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

    Air Canada, at C$ 578, was found to be the cheapest airline from Toronto Pearson Intl Airport to St. Louis.Alternate airlines to your destination round-trip include American Airlines and United Airlines. Air Canada is 18% cheaper than the average price of flights available within the next 90 days to this destination.

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

    C$ 327 is the cheapest one-way deal found within the past few days, from Air Canada. You may also be able to find cheap deals on WestJet and United Airlines, with prices starting from C$ 428 and C$ 493, respectively.

  • 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 (70%), Jazz (70%) or United Airlines (70%) 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$ 783, our data shows the cheapest flight currently is C$ 509. When looking at the most popular route, (Toronto Pearson Intl - Lambert-St Louis), you can expect to pay C$ 398 for that flight.

  • 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, January is the cheapest month in which you can book a flight from Toronto Pearson Intl Airport to St. Louis (average of C$ 365). Flying from Toronto Pearson Intl Airport to St. Louis in September is currently the most expensive (average of C$ 491). 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

Travelling to a place near Toronto Pearson Intl Airport?

Book flights to Toronto Pearson Intl Airport if you plan to visit one of these locations
St. Peters
Chesterfield

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.

Alternative routes for Pearson Intl to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.
Pearson Intl to Kansas City flights
Pearson Intl to Springfield flights
Pearson Intl to Quincy flights
Pearson Intl to Columbia flights

Top 3 airlines flying from Pearson Intl to St. Louis

Discover the top 3 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 20 February 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 534AverageC$ 707FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 580AverageC$ 743FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
WestJetCheapestC$ 645AverageC$ 775FlexibilityNo cancel feeOn-time60%
Search WestJet flights

Fly with Cheapflights

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.

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.