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

There are many flights that can get you from Toronto Pearson Intl Airport to St. Louis in 11h 22m. Fly via United Airlines or American Airlines to get the fastest option. The distance from Toronto Pearson Intl Airport to St. Louis is about 1051 km. Both multi-stop and direct flights can be found to your destination and back.

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

American Airlines, at C$ 431, was found to be the cheapest airline from Toronto Pearson Intl Airport to St. Louis.Alternate airlines to your destination round-trip include Air Canada and Delta. American Airlines is 36% cheaper than the average price of flights available within the next 90 days to this destination.

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 Thursday mornings when fares are most often at their lowest. Sunday 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 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.

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).

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$ 1,165, our data shows the cheapest flight currently is C$ 436. When looking at the most popular route, (Toronto Pearson Intl - Lambert-St Louis), you can expect to pay C$ 388 for that flight.

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 most popular airlines that fly from Toronto Pearson Intl Airport to St. Louis?

Consider American Airlines, Air Canada or Delta when booking your flight. These represent the most popular airlines when flying from Toronto Pearson Intl Airport to St. Louis.

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

Sunday flights are generally found to be more expensive for flights from Toronto Pearson Intl Airport to St. Louis. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to St. Louis.

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

Our data shows that June tends to be the cheapest month to fly to St. Louis from Toronto Pearson Intl Airport. Users have commonly found prices around C$ 670 for the month, but tickets can be as low as C$ 413. Due to multiple factors, prepare for potentially higher prices in January.

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. 5 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 4 inbound flights from Toronto Pearson Intl per day.

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.

C$ 252+ Flights from Toronto Pearson Intl Airport to St. Louis

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 Thursday or Tuesday and return on a Tuesday

Cheap flight deals from Pearson Intl to St. Louis

Round-trip from	C$ 362
One-way from	C$ 252
Popular in	September
Cheapest in	June
Average price	C$ 755
Good round-trip deal	C$ 542 or less
Good one-way deal	C$ 1,023 or less

6/11-10/11
2 total stops
54h 05m total
Toronto to St. Louis

Search Deals

8/10
3 total stops
23h 07m total
Toronto to St. Louis

Search Deals

Highest demand for flights based on searches. 2% potential increase in price (C$ 25 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 0% potential price decrease (C$ 10 potential savings vs. average RT price).

Search Deals

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

Thu 6/119:45 a.m.YYZ - STL

1 stop29h 12mMultiple Airlines

Mon 10/119:07 p.m.STL - YYZ

1 stop24h 53mMultiple Airlines

Deal found 11/9C$ 362

Thu 6/119:45 a.m.YYZ - STL

1 stop29h 12mMultiple Airlines

Sat 8/114:51 p.m.STL - YYZ

1 stop12h 29mMultiple Airlines

Deal found 11/9C$ 366

Fri 7/119:45 a.m.YYZ - STL

1 stop11h 27mMultiple Airlines

Mon 10/112:42 p.m.STL - YYZ

2 stops21h 58mMultiple Airlines

Deal found 11/9C$ 382

Wed 15/106:30 a.m.YYZ - STL

1 stop28h 32mMultiple Airlines

Mon 20/109:59 p.m.STL - YYZ

2 stops21h 53mMultiple Airlines

Deal found 10/9C$ 388

Sun 26/109:35 a.m.YYZ - STL

2 stops24h 57mMultiple Airlines

Thu 30/1010:57 a.m.STL - YYZ

1 stop26h 43mMultiple Airlines

Deal found 10/9C$ 392

Wed 15/101:15 p.m.YYZ - STL

1 stop11h 39mAmerican Airlines

Tue 21/106:00 a.m.STL - YYZ

1 stop7h 30mAmerican Airlines

Deal found 9/9C$ 412

Tue 7/101:15 p.m.YYZ - STL

1 stop8h 11mAmerican Airlines

Tue 14/106:00 a.m.STL - YYZ

1 stop9h 34mAmerican Airlines

Deal found 9/9C$ 442

Wed 1/109:35 a.m.YYZ - STL

1 stop25h 05mMultiple Airlines

Sun 5/104:00 p.m.STL - YYZ

2 stops27h 55mMultiple Airlines

Deal found 11/9C$ 443

Fri 7/119:45 a.m.YYZ - STL

1 stop11h 27mMultiple Airlines

Sun 9/1111:23 a.m.STL - YYZ

2 stops17h 57mMultiple Airlines

Deal found 11/9C$ 460

Thu 6/117:55 p.m.YYZ - STL

1 stop19h 02mMultiple Airlines

Sun 9/1111:23 a.m.STL - YYZ

2 stops17h 57mMultiple Airlines

Deal found 11/9C$ 470

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 11 September 2025.

Fri 7/119:45 a.m.YYZ - STL

1 stop11h 27mMultiple Airlines

Mon 10/112:42 p.m.STL - YYZ

2 stops21h 58mMultiple Airlines

Deal found 11/9C$ 382

Tue 7/107:00 a.m.YYZ - STL

3 stops14h 46mUnited Airlines

Tue 14/106:00 a.m.STL - YYZ

1 stop6h 47mUnited Airlines

Deal found 9/9C$ 528

Mon 17/1110:57 a.m.YYZ - STL

1 stop11h 22mAmerican Airlines

Sat 22/117:58 p.m.STL - YYZ

1 stop13h 54mAmerican Airlines

Deal found 11/9C$ 532

Sat 8/116:00 a.m.YYZ - STL

1 stop11h 43mDelta

Sun 9/115:12 p.m.STL - YYZ

1 stop5h 47mDelta

Deal found 11/9C$ 557

Fri 3/102:15 p.m.YYZ - STL

Nonstop2h 03mAir Canada

Sun 5/109:15 a.m.STL - YYZ

Nonstop1h 56mAir Canada

Deal found 11/9C$ 561

Mon 20/1010:40 a.m.YYZ - STL

2 stops23h 27mMultiple Airlines

Thu 23/1010:57 a.m.STL - YYZ

1 stop8h 58mMultiple Airlines

Deal found 11/9C$ 489

Sat 11/1011:50 a.m.YYZ - STL

1 stop13h 08mAmerican Airlines

Sat 18/106:00 a.m.STL - YYZ

1 stop9h 34mAmerican Airlines

Deal found 11/9C$ 542

Wed 15/102:15 p.m.YYZ - STL

Nonstop2h 03mAir Canada

Mon 20/109:15 a.m.STL - YYZ

Nonstop1h 56mAir Canada

Deal found 10/9C$ 561

Tue 14/106:00 a.m.YYZ - STL

1 stop11h 43mDelta

Thu 16/106:00 a.m.STL - YYZ

1 stop5h 10mDelta

Deal found 11/9C$ 568

Sat 18/102:15 p.m.YYZ - STL

Nonstop2h 03mUnited Airlines

Wed 22/1012:25 p.m.STL - YYZ

1 stop10h 33mUnited Airlines

Deal found 9/9C$ 570

Sat 25/102:15 p.m.YYZ - STL

Nonstop2h 03mAir Canada

Sun 2/114:05 p.m.STL - YYZ

Nonstop2h 01mAir Canada

Deal found 11/9C$ 561

Sun 26/103:35 p.m.YYZ - STL

1 stop5h 48mDelta

Wed 29/109:31 a.m.STL - YYZ

1 stop10h 11mDelta

Deal found 10/9C$ 570

Direct flights from Pearson Intl to St. Louis
Explore direct flight options from Pearson Intl to St. Louis based on user searches, and compare prices and availability for your desired travel dates. Data last updated 11 September 2025.

Sat 18/102:15 p.m.YYZ - STL

Nonstop2h 03mAir Canada

Wed 22/104:05 p.m.STL - YYZ

Nonstop1h 55mAir Canada

Deal found 9/9C$ 493

Wed 15/102:15 p.m.YYZ - STL

Nonstop2h 03mAir Canada

Tue 21/109:15 a.m.STL - YYZ

Nonstop1h 56mAir Canada

Deal found 9/9C$ 520

Thu 20/112:00 p.m.YYZ - STL

Nonstop2h 29mAir Canada

Sun 23/114:05 p.m.STL - YYZ

Nonstop2h 01mAir Canada

Deal found 10/9C$ 543

Thu 6/112:00 p.m.YYZ - STL

Nonstop2h 29mAir Canada

Sun 9/114:05 p.m.STL - YYZ

Nonstop2h 01mAir Canada

Deal found 11/9C$ 561

Tue 14/106:40 p.m.YYZ - STL

Nonstop2h 03mAir Canada

Thu 16/109:15 a.m.STL - YYZ

Nonstop1h 56mAir Canada

Deal found 11/9C$ 579

Tue 3/32:00 p.m.YYZ - STL

Nonstop2h 29mAir Canada

Wed 4/34:05 p.m.STL - YYZ

Nonstop2h 01mAir Canada

Deal found 9/9C$ 604

Tue 7/102:15 p.m.YYZ - STL

Nonstop2h 03mAir Canada

Tue 14/104:05 p.m.STL - YYZ

Nonstop1h 55mAir Canada

Deal found 9/9C$ 624

Wed 26/112:00 p.m.YYZ - STL

Nonstop2h 29mAir Canada

Mon 1/124:05 p.m.STL - YYZ

Nonstop2h 01mAir Canada

Deal found 10/9C$ 636

Sat 11/102:15 p.m.YYZ - STL

Nonstop2h 03mAir Canada

Sat 18/104:05 p.m.STL - YYZ

Nonstop1h 55mAir Canada

Deal found 11/9C$ 672

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

Wed 1/109:35 a.m.YYZ - STL

1 stop25h 05mMultiple Airlines

Sun 5/104:00 p.m.STL - YYZ

2 stops27h 55mMultiple Airlines

Deal found 11/9C$ 443

Fri 3/109:50 a.m.YYZ - STL

1 stop11h 47mMultiple Airlines

Sun 5/104:00 p.m.STL - YYZ

2 stops27h 55mMultiple Airlines

Deal found 11/9C$ 495

Tue 7/101:15 p.m.YYZ - STL

1 stop8h 11mAmerican Airlines

Tue 14/106:00 a.m.STL - YYZ

1 stop9h 34mAmerican Airlines

Deal found 9/9C$ 442

Wed 15/106:30 a.m.YYZ - STL

1 stop28h 32mMultiple Airlines

Mon 20/109:59 p.m.STL - YYZ

2 stops21h 53mMultiple Airlines

Deal found 10/9C$ 388

Wed 15/101:15 p.m.YYZ - STL

1 stop11h 39mAmerican Airlines

Tue 21/106:00 a.m.STL - YYZ

1 stop7h 30mAmerican Airlines

Deal found 9/9C$ 412

Sat 18/101:35 p.m.YYZ - STL

1 stop21h 27mMultiple Airlines

Wed 22/107:52 p.m.STL - YYZ

2 stops25h 48mMultiple Airlines

Deal found 9/9C$ 479

Sat 18/102:15 p.m.YYZ - STL

Nonstop2h 03mAir Canada

Wed 22/104:05 p.m.STL - YYZ

Nonstop1h 55mAir Canada

Deal found 9/9C$ 493

Sat 18/1011:00 a.m.YYZ - STL

1 stop9h 23mAmerican Airlines

Wed 22/106:00 a.m.STL - YYZ

1 stop9h 34mAmerican Airlines

Deal found 9/9C$ 497

Mon 20/1010:40 a.m.YYZ - STL

2 stops23h 27mMultiple Airlines

Thu 23/1010:57 a.m.STL - YYZ

1 stop8h 58mMultiple Airlines

Deal found 11/9C$ 489

Sun 26/109:35 a.m.YYZ - STL

2 stops24h 57mMultiple Airlines

Thu 30/1010:57 a.m.STL - YYZ

1 stop26h 43mMultiple Airlines

Deal found 10/9C$ 392

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 11 September 2025.

Wed 8/1011:00 a.m.YYZ - STL

3 stops23h 07mMultiple Airlines

Deal found 11/9C$ 252

Wed 8/102:15 p.m.YYZ - STL

Nonstop2h 03mAir Canada

Deal found 11/9C$ 295

Wed 8/101:15 p.m.YYZ - STL

1 stop8h 11mAmerican Airlines

Deal found 11/9C$ 298

Wed 17/99:35 a.m.YYZ - STL

2 stops30h 29mMultiple Airlines

Deal found 11/9C$ 327

Mon 22/92:45 p.m.YYZ - STL

1 stop4h 38mUnited Airlines

Deal found 10/9C$ 456

Wed 17/97:55 a.m.YYZ - STL

1 stop5h 24mDelta

Deal found 10/9C$ 518

Wed 17/96:35 p.m.YYZ - STL

Nonstop2h 03mAir Canada

Deal found 10/9C$ 680

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 7/11

9:45 a.m.-8:12 p.m.

1 stop11h 27m

Lambert-St Louis

Mon 10/11

2:42 p.m.-1:40 p.m.

2 stops21h 58m

C$ 382

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Mon 20/10

10:40 a.m.-9:07 a.m.

2 stops23h 27m

Lambert-St Louis

Thu 23/10

10:57 a.m.-8:55 p.m.

1 stop8h 58m

C$ 489

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Tue 7/10

7:00 a.m.-8:46 p.m.

3 stops14h 46m

Lambert-St Louis

Tue 14/10

6:00 a.m.-1:47 p.m.

1 stop6h 47m

C$ 528

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Mon 17/11

10:57 a.m.-9:19 p.m.

1 stop11h 22m

Lambert-St Louis

Sat 22/11

7:58 p.m.-10:52 a.m.

1 stop13h 54m

C$ 532

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Sat 11/10

11:50 a.m.-11:58 p.m.

1 stop13h 08m

Lambert-St Louis

Sat 18/10

6:00 a.m.-4:34 p.m.

1 stop9h 34m

C$ 542

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Sat 8/11

6:00 a.m.-4:43 p.m.

1 stop11h 43m

Lambert-St Louis

Sun 9/11

5:12 p.m.-11:59 p.m.

1 stop5h 47m

C$ 557

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Fri 3/10

2:15 p.m.-3:18 p.m.

Nonstop2h 03m

Lambert-St Louis

Sun 5/10

9:15 a.m.-12:11 p.m.

Nonstop1h 56m

C$ 561

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Wed 15/10

2:15 p.m.-3:18 p.m.

Nonstop2h 03m

Lambert-St Louis

Mon 20/10

9:15 a.m.-12:11 p.m.

Nonstop1h 56m

C$ 561

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Sat 25/10

2:15 p.m.-3:18 p.m.

Nonstop2h 03m

Lambert-St Louis

Sun 2/11

4:05 p.m.-7:06 p.m.

Nonstop2h 01m

C$ 561

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Tue 14/10

6:00 a.m.-4:43 p.m.

1 stop11h 43m

Lambert-St Louis

Thu 16/10

6:00 a.m.-12:10 p.m.

1 stop5h 10m

C$ 568

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/9

Showing 1-10 of 18 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?

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 84 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?

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 22% versus a flight at noon.

Reviews of airlines servicing St. Louis

See what other customers who have flown with Delta,United Airlines, andAmerican Airlines from Toronto Pearson Intl Airport to St. Louis have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,960 reviews

Check prices

Reviews

1 / 20

6.0

Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others

Delta

8.0

Very good

7,960 reviews

Delta

8.0

Very good

7,960 reviews

Check prices

Reviews

1 / 20

6.0

Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others

United Airlines

7.4

Good

8,937 reviews

Delta

8.0

Very good

7,960 reviews

Check prices

Reviews

1 / 20

6.0

Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,960 reviews

Check prices

Reviews

1 / 20

6.0

Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others

WestJet

7.2

Good

3,091 reviews

Delta

8.0

Very good

7,960 reviews

Check prices

Reviews

1 / 20

6.0

Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others

Air Canada

7.1

Good

10,000 reviews

Delta

8.0

Very good

7,960 reviews

Check prices

Reviews

1 / 20

6.0

Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others

Related info for your journey

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. 5 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 4 inbound flights from Toronto Pearson Intl per day.
How long is the flight from Toronto Pearson Intl Airport to St. Louis?
There are many flights that can get you from Toronto Pearson Intl Airport to St. Louis in 11h 22m. Fly via United Airlines or American Airlines to get the fastest option. The distance from Toronto Pearson Intl Airport to St. Louis is about 1051 km. Both multi-stop and direct flights can be found to your destination and back.
What are the cheapest airlines flying from Toronto Pearson Intl Airport to St. Louis round-trip?
American Airlines, at C$ 431, was found to be the cheapest airline from Toronto Pearson Intl Airport to St. Louis.Alternate airlines to your destination round-trip include Air Canada and Delta. American Airlines is 36% cheaper than the average price of flights available within the next 90 days to this destination.
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?
While on average a flight from Toronto Pearson Intl Airport to St. Louis is generally C$ 1,165, our data shows the cheapest flight currently is C$ 436. When looking at the most popular route, (Toronto Pearson Intl - Lambert-St Louis), you can expect to pay C$ 388 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

Chesterfield

St. Peters

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Top 5 airlines flying from Pearson Intl to St. Louis

Airline	Cheapest	Average	Flexibility	On-time
American Airlines	CheapestC$ 431	AverageC$ 688	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights
Air Canada	CheapestC$ 473	AverageC$ 674	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
Delta	CheapestC$ 476	AverageC$ 656	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
United Airlines	CheapestC$ 476	AverageC$ 685	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
WestJet	CheapestC$ 559	AverageC$ 872	FlexibilityNo cancel fee	On-time60%	Search WestJet flights

Fly with Cheapflights

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.

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Cheap flights from Toronto Pearson Intl Airport to St. Louis from C$ 252

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 8/10. Fares are subject to change and may not be available on all flights or dates of travel.

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 Thursday or Tuesday and return on a Tuesday

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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 11 September 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 11 September 2025.

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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

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

Reviews of airlines servicing St. Louis

See what other customers who have flown with Delta,United Airlines, andAmerican Airlines from Toronto Pearson Intl Airport to St. Louis have to say. You can also see how each airline compares 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.

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Top 5 airlines flying from Pearson Intl to St. Louis

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Why should you use Cheapflights to find cheap flight tickets from Pearson Intl to St. Louis?

Can Cheapflights find flights from Pearson Intl to St. Louis with no change fees?

Can Cheapflights notify me if prices for flights from Pearson Intl to St. Louis become cheaper?

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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 11 September 2025.