Q: How much does it cost to fly round-trip from Toronto Pearson Intl Airport to St. Louis?

Airfare is below average for this route at the moment. Toronto Pearson Intl Airport to St. Louis flights typically cost between C$ 545 and C$ 833 in October. The cheapest round-trip price found within the last 3 days was C$ 434 on Multiple Airlines (27 Oct-1 Nov).

Question 1

How much does it cost to fly round-trip from Toronto Pearson Intl Airport to St. Louis?

Accepted Answer

Airfare is below average for this route at the moment.Toronto Pearson Intl Airport to St. Louis flights typically cost between C$ 545 and C$ 833 in October.
The cheapest round-trip price found within the last 3 days was C$ 434 on Multiple Airlines (27 Oct-1 Nov).

Question 2

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

Accepted Answer

There are many flights that can get you from Toronto Pearson Intl Airport to St. Louis in 8h 39m. Fly via American Airlines to get the fastest option. The distance from Toronto Pearson Intl Airport to St. Louis is about 1051 km.

Question 3

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

Accepted Answer

Air Canada, at C$ 472, was found to be the cheapest airline from Toronto Pearson Intl Airport to St. Louis.Alternate airlines to your destination round-trip include Delta and United Airlines. Air Canada is 30% cheaper than the average price of flights available within the next 90 days to this destination.

Question 4

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

Accepted Answer

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.

Question 5

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

Accepted Answer

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.

Question 6

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

Accepted Answer

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. Saturday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Question 7

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

Accepted Answer

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).

Question 8

E

Accepted Answer

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.

Question 9

E

Accepted Answer

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).

Question 10

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

Accepted Answer

While on average a flight from Toronto Pearson Intl Airport to St. Louis is generally C$ 628, our data shows the cheapest flight currently is C$ 302. When looking at the most popular route, (Toronto Pearson Intl - Lambert-St Louis), you can expect to pay C$ 434 for that flight.

Question 11

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

Accepted Answer

No one likes to see their flight delayed. When booking a flight from Toronto Pearson Intl Airport to St. Louis consider choosing Jazz (80%), Air Canada (78%) or United Airlines (68%) as they are the most reliable in getting you off to your destination on time.

Question 12

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

Accepted Answer

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

Question 13

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

Accepted Answer

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.

Question 14

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

Accepted Answer

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 47 days in advance, which can save you up to 224% on flights from Toronto Pearson Intl Airport to St. Louis compared to booking the week you need them. Waiting 47 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at C$ 476. For sooner than that we have options available in the next 3 days from C$ 1,473.

Question 15

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

Accepted Answer

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$ 412. Due to multiple factors, prepare for potentially higher prices in January.

Question 16

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

Accepted Answer

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.

Question 17

What airport do you fly into for flights to St. Louis from Toronto Pearson Intl?

Accepted Answer

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. 4 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.

Question 18

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

Accepted Answer

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

Question 19

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

Accepted Answer

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.

Question 20

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

Accepted Answer

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.

Question 21

How does Cheapflights help users find flights from Pearson Intl to St. Louis?

Accepted Answer

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.

Question 22

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

Accepted Answer

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.

Question 23

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

Accepted Answer

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.

Question 24

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

Accepted Answer

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.

Round-trip from	C$ 434
One-way from	C$ 242
Popular in	September
Cheapest in	June
Average price	C$ 647
Good round-trip deal	C$ 535 or less
Good one-way deal	C$ 487 or less

Airline	Cheapest	Average	Flexibility	On-time
Air Canada	CheapestC$ 472	AverageC$ 679	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
Delta	CheapestC$ 475	AverageC$ 655	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
United Airlines	CheapestC$ 475	AverageC$ 678	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
WestJet	CheapestC$ 558	AverageC$ 870	FlexibilityNo cancel fee	On-time60%	Search WestJet flights

Cheap flights from Toronto Pearson Intl Airport to St. Louis from C$ 242

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 6/9. 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

Cheap flight deals from Pearson Intl to St. Louis

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

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 19 August 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 19 August 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?

How much does it cost to fly round-trip from Toronto Pearson Intl Airport to St. Louis?

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, andWestJet 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.

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 are the cheapest airlines flying 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?

Travelling to a place near St. Louis?

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.

Top 4 airlines flying from Pearson Intl to St. Louis

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?

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?

100% Free

Book with Flexibility

Travel Smart

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 19 August 2025.