How long is the flight from Toronto Pearson Intl Airport to St. Louis?

Airlines like American Airlines fly from Toronto Pearson Intl Airport to St. Louis in about 9h 38m. The time it takes to get you to your destination can typically vary by up to . There are 653 mi between Toronto Pearson Intl Airport and St. Louis.

What is the cheapest airline to fly 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 $324. You may be able to fly from Toronto Pearson Intl Airport to St. Louis for 34% less than the average price by searching for this airline.

What is the cheapest day to fly from Toronto Pearson Intl Airport to St. Louis?

Travelers seeking maximum savings on their Toronto Pearson Intl Airport to St. Louis flight should consider departing on Saturday mornings when fares are most often at their lowest. Thursday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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

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).

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.

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).

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 $280 on average, our data indicates $344 when flying from Toronto Pearson Intl Airport to St. Louis.

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 (75%), Jazz (75%) or United Airlines (75%) as they are the most reliable in getting you off to your destination on time.

What is the cheapest day to fly round-trip from Toronto Pearson Intl Airport to St. Louis?

Leaving on a Monday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 38% on the overall cost on flights from Toronto Pearson Intl Airport to St. Louis.

What is the cheapest month to fly from Toronto Pearson Intl Airport to St. Louis?

The best pricing can be found in the month of June. Prices to St. Louis from Toronto Pearson Intl Airport average $484. You can even find prices in June for less than $484, as users have found deals to St. Louis from as low as $298. The month of January appears to be one of the more expensive times to travel to St. Louis from Toronto Pearson Intl Airport. Flying in the targeted month can save you up to 12%.

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 are 4 daily inbound flights from Toronto Pearson Intl from 1 airline.

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.

$166+ Flights from Toronto Pearson Intl Airport to St. Louis

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Cheapflights Tip: The best prices from Toronto Pearson Intl to Lambert-St Louis are usually found in June or May, booked 85 days in advance, depart on a Tuesday or Saturday and return on a Tuesday

Cheap flight deals from Pearson Intl to St. Louis

Round-trip from	$261 (Kiwi.com)
One-way from	$166 (Kiwi.com)
Popular in	September
Cheapest in	June
Average price	$545
Good round-trip deal	$405 or less
Good one-way deal	$245 or less

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. 2% potential increase in price ($13 potential increase over avg. RT price).

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Cheapest flight prices on average. 0% potential price decrease ($5 potential savings vs. average RT price).

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Average for round-trip flights in September 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 September 11, 2025.

Thu 11/69:45 amYYZ - STL

1 stop29h 12mMultiple Airlines

Mon 11/109:07 pmSTL - YYZ

1 stop24h 53mMultiple Airlines

Deal found 9/11

$261

Thu 11/69:45 amYYZ - STL

1 stop29h 12mMultiple Airlines

Sat 11/84:51 pmSTL - YYZ

1 stop12h 29mMultiple Airlines

Deal found 9/11

$264

Fri 11/79:45 amYYZ - STL

1 stop11h 27mMultiple Airlines

Mon 11/102:42 pmSTL - YYZ

2 stops21h 58mMultiple Airlines

Deal found 9/11

$276

Wed 10/156:30 amYYZ - STL

1 stop28h 32mMultiple Airlines

Mon 10/209:59 pmSTL - YYZ

2 stops21h 53mMultiple Airlines

Deal found 9/10

$280

Sun 10/269:35 amYYZ - STL

2 stops24h 57mMultiple Airlines

Thu 10/3010:57 amSTL - YYZ

1 stop26h 43mMultiple Airlines

Deal found 9/10

$283

Wed 10/151:15 pmYYZ - STL

1 stop11h 39mAmerican Airlines

Tue 10/216:00 amSTL - YYZ

1 stop7h 30mAmerican Airlines

Deal found 9/9

$297

Wed 10/159:45 amYYZ - STL

2 stops24h 22mMultiple Airlines

Sun 10/1910:57 amSTL - YYZ

1 stop26h 08mMultiple Airlines

Deal found 9/9

$305

Tue 10/71:15 pmYYZ - STL

1 stop8h 11mAmerican Airlines

Tue 10/146:00 amSTL - YYZ

1 stop9h 34mAmerican Airlines

Deal found 9/9

$319

Wed 10/19:35 amYYZ - STL

1 stop25h 05mMultiple Airlines

Sun 10/54:00 pmSTL - YYZ

2 stops27h 55mMultiple Airlines

Deal found 9/11

$320

Tue 12/211:33 amYYZ - STL

1 stop13h 23mAmerican Airlines

Thu 12/46:00 amSTL - YYZ

1 stop9h 35mAmerican Airlines

Deal found 9/9

$323

Fri 10/37:45 pmYYZ - STL

2 stops21h 18mMultiple Airlines

Mon 10/69:32 pmSTL - YYZ

1 stop15h 20mMultiple Airlines

Deal found 9/9

$324

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 September 11, 2025.

Fri 11/79:45 amYYZ - STL

1 stop11h 27mMultiple Airlines

Mon 11/102:42 pmSTL - YYZ

2 stops21h 58mMultiple Airlines

Deal found 9/11

$276

Fri 10/31:15 pmYYZ - STL

1 stop9h 38mAmerican Airlines

Mon 10/66:00 amSTL - YYZ

1 stop7h 30mAmerican Airlines

Deal found 9/9

$343

Sat 10/252:15 pmYYZ - STL

Nonstop2h 03mAir Canada

Sun 11/24:05 pmSTL - YYZ

Nonstop2h 01mAir Canada

Deal found 9/9

$358

Thu 11/69:45 amYYZ - STL

2 stops24h 22mMultiple Airlines

Sat 11/84:51 pmSTL - YYZ

1 stop12h 29mMultiple Airlines

Deal found 9/11

$304

Wed 10/159:45 amYYZ - STL

2 stops24h 22mMultiple Airlines

Sun 10/1910:57 amSTL - YYZ

1 stop26h 08mMultiple Airlines

Deal found 9/9

$305

Fri 10/241:15 pmYYZ - STL

1 stop8h 11mAmerican Airlines

Fri 10/3110:13 amSTL - YYZ

1 stop12h 12mAmerican Airlines

Deal found 9/8

$357

Mon 10/64:00 pmYYZ - STL

2 stops18h 07mMultiple Airlines

Mon 10/139:06 pmSTL - YYZ

1 stop24h 34mMultiple Airlines

Deal found 9/8

$337

Mon 10/64:15 pmYYZ - STL

1 stop5h 05mAmerican Airlines

Wed 10/86:00 amSTL - YYZ

1 stop7h 30mAmerican Airlines

Deal found 9/9

$371

Fri 10/248:05 pmYYZ - STL

2 stops14h 02mMultiple Airlines

Fri 10/312:12 pmSTL - YYZ

1 stop23h 08mMultiple Airlines

Deal found 9/8

$349

Mon 10/2010:40 amYYZ - STL

2 stops23h 27mMultiple Airlines

Thu 10/2310:57 amSTL - YYZ

1 stop8h 58mMultiple Airlines

Deal found 9/11

$353

Fri 10/37:30 amYYZ - STL

1 stop9h 37mMultiple Airlines

Mon 10/64:05 pmSTL - YYZ

Nonstop1h 55mMultiple Airlines

Deal found 9/9

$373

Tue 12/28:55 amYYZ - STL

1 stop7h 45mMultiple Airlines

Thu 12/44:05 pmSTL - YYZ

Nonstop2h 01mMultiple Airlines

Deal found 9/9

$373

Last-minute flights from Pearson Intl to St. Louis
Discover last-minute flight deals from Pearson Intl to St. Louis. Data last updated September 11, 2025 and is based on user searches.

Wed 10/19:35 amYYZ - STL

1 stop25h 05mMultiple Airlines

Sun 10/54:00 pmSTL - YYZ

2 stops27h 55mMultiple Airlines

Deal found 9/11

$320

Fri 10/37:45 pmYYZ - STL

2 stops21h 18mMultiple Airlines

Mon 10/69:32 pmSTL - YYZ

1 stop15h 20mMultiple Airlines

Deal found 9/9

$324

Fri 10/31:15 pmYYZ - STL

1 stop9h 38mAmerican Airlines

Mon 10/66:00 amSTL - YYZ

1 stop7h 30mAmerican Airlines

Deal found 9/9

$343

Mon 10/64:00 pmYYZ - STL

2 stops18h 07mMultiple Airlines

Mon 10/139:06 pmSTL - YYZ

1 stop24h 34mMultiple Airlines

Deal found 9/8

$337

Tue 10/71:15 pmYYZ - STL

1 stop8h 11mAmerican Airlines

Tue 10/146:00 amSTL - YYZ

1 stop9h 34mAmerican Airlines

Deal found 9/9

$319

Sat 10/1110:25 pmYYZ - STL

2 stops35h 42mMultiple Airlines

Sat 10/187:15 pmSTL - YYZ

1 stop17h 50mMultiple Airlines

Deal found 9/9

$345

Wed 10/156:30 amYYZ - STL

1 stop28h 32mMultiple Airlines

Mon 10/209:59 pmSTL - YYZ

2 stops21h 53mMultiple Airlines

Deal found 9/10

$280

Wed 10/151:15 pmYYZ - STL

1 stop11h 39mAmerican Airlines

Tue 10/216:00 amSTL - YYZ

1 stop7h 30mAmerican Airlines

Deal found 9/9

$297

Wed 10/159:45 amYYZ - STL

2 stops24h 22mMultiple Airlines

Sun 10/1910:57 amSTL - YYZ

1 stop26h 08mMultiple Airlines

Deal found 9/9

$305

Thu 10/161:15 pmYYZ - STL

1 stop11h 39mAmerican Airlines

Sun 10/197:16 amSTL - YYZ

1 stop9h 24mAmerican Airlines

Deal found 9/9

$329

Sun 10/269:35 amYYZ - STL

2 stops24h 57mMultiple Airlines

Thu 10/3010:57 amSTL - YYZ

1 stop26h 43mMultiple Airlines

Deal found 9/10

$283

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 September 11, 2025.

Sat 10/49:35 amYYZ - STL

1 stop25h 27mMultiple Airlines

Deal found 9/9

$166

Tue 11/47:15 amYYZ - STL

2 stops26h 52mMultiple Airlines

Deal found 9/9

$170

Wed 10/811:00 amYYZ - STL

3 stops23h 07mMultiple Airlines

Deal found 9/11

$182

Thu 10/232:00 pmYYZ - STL

3 stops20h 07mMultiple Airlines

Deal found 9/8

$183

Sun 10/2610:30 amYYZ - STL

3 stops24h 02mMultiple Airlines

Deal found 9/9

$202

Thu 10/232:15 pmYYZ - STL

Nonstop2h 03mAir Canada

Deal found 9/8

$204

Thu 10/231:15 pmYYZ - STL

1 stop11h 39mAmerican Airlines

Deal found 9/8

$206

Cheapflights Fare Finder

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

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Fri 11/7

9:45 am-8:12 pm

1 stop11h 27m

Lambert-St Louis

Mon 11/10

2:42 pm-1:40 pm

2 stops21h 58m

$276

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Thu 11/6

9:45 am-9:07 am

2 stops24h 22m

Lambert-St Louis

Sat 11/8

4:51 pm-6:20 am

1 stop12h 29m

$304

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Wed 10/15

9:45 am-9:07 am

2 stops24h 22m

Lambert-St Louis

Sun 10/19

10:57 am-2:05 pm

1 stop26h 08m

$305

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Mon 10/6

4:00 pm-9:07 am

2 stops18h 07m

Lambert-St Louis

Mon 10/13

9:06 pm-10:40 pm

1 stop24h 34m

$337

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Fri 10/3

1:15 pm-9:53 pm

1 stop9h 38m

Lambert-St Louis

Mon 10/6

6:00 am-2:30 pm

1 stop7h 30m

$343

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Fri 10/24

8:05 pm-9:07 am

2 stops14h 02m

Lambert-St Louis

Fri 10/31

2:12 pm-2:20 pm

1 stop23h 08m

$349

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Mon 10/20

10:40 am-9:07 am

2 stops23h 27m

Lambert-St Louis

Thu 10/23

10:57 am-8:55 pm

1 stop8h 58m

$353

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Fri 10/24

1:15 pm-8:26 pm

1 stop8h 11m

Lambert-St Louis

Fri 10/31

10:13 am-11:25 pm

1 stop12h 12m

$357

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Sat 10/25

2:15 pm-3:18 pm

Nonstop2h 03m

Lambert-St Louis

Sun 11/2

4:05 pm-7:06 pm

Nonstop2h 01m

$358

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Mon 10/6

4:15 pm-8:20 pm

1 stop5h 05m

Lambert-St Louis

Wed 10/8

6:00 am-2:30 pm

1 stop7h 30m

$371

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 20 results

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

Prices

Airlines

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

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?

It’s typically best to fly out from Toronto Pearson Intl Airport to St. Louis in the morning. Doing so could potentially save you 32% on the flight price compared to flying at noon, which is usually more expensive.

Reviews of airlines servicing St. Louis

Get a feel of what it's like to fly with Air Canada from Toronto Pearson Intl Airport to St. Louis by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Air Canada

7.1

Good

10,000 reviews

Reviews

1 / 20

8.0

Excellent

Jadi-Ann,Jun 2025

YYZ - KIN

The flight was smooth with minor turbulence. The staff was courteous. Since I have an aeroplan account I was able to use the inflight wifi. I wanted extra space and the window seat and I had to pay for that. At first, I was okay with that, however, I felt that it was the same distance between for everyone. Maybe I could be wrong.

Air Canada

7.1

Good

10,000 reviews

Air Canada

7.1

Good

10,000 reviews

Reviews

1 / 20

8.0

Excellent

Jadi-Ann,Jun 2025

YYZ - KIN

Related info for your journey

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 are 4 daily inbound flights from Toronto Pearson Intl from 1 airline.
How long is the flight from Toronto Pearson Intl Airport to St. Louis?
Airlines like American Airlines fly from Toronto Pearson Intl Airport to St. Louis in about 9h 38m. The time it takes to get you to your destination can typically vary by up to . There are 653 mi between Toronto Pearson Intl Airport and St. Louis.
What is the cheapest airline to fly 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 $324. You may be able to fly from Toronto Pearson Intl Airport to St. Louis for 34% less than the average price by searching for this airline.
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 (75%), Jazz (75%) or United Airlines (75%) 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 $280 on average, our data indicates $344 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.

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Top airline flying from Pearson Intl to St. Louis

Airline	Cheapest	Average	Flexibility	On-time
Air Canada	Cheapest$324	Average$496	FlexibilityNo cancel fee	On-time67%

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$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 10/4. Fares are subject to change and may not be available on all flights or dates of travel.

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

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2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Toronto Pearson Intl to Lambert-St Louis are usually found in June or May, booked 85 days in advance, depart on a Tuesday or Saturday and return on a Tuesday

Cheap flight deals from Pearson Intl to St. Louis

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One-way from

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Find flight deals from Pearson Intl to St. Louis

Cheapest flights from Pearson Intl to St. LouisExplore 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 September 11, 2025.

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 September 11, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Toronto Pearson Intl Airport to St. Louis that are best for you.

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.

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?

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

What is the cheapest time of day to fly from YYZ to STL?

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

Reviews of airlines servicing St. Louis

Get a feel of what it's like to fly with Air Canada from Toronto Pearson Intl Airport to St. Louis by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

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?

How long is the flight from Toronto Pearson Intl Airport to St. Louis?

What is the cheapest airline to fly from Toronto Pearson Intl Airport to St. Louis round-trip?

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

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

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

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

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

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

Traveling to a place near St. Louis?

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Alternative routes for Pearson Intl to St. Louis

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Top airline flying from Pearson Intl to St. Louis

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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 September 11, 2025.