How many flights depart from Toronto Pearson Intl Airport to St. Louis on average per week?

The number of flights available between Toronto Pearson Intl Airport and St. Louis is 14 per week as of March 2026. The most frequent departure day is Mon, with 14% of weekly flights leaving on this day.

Which layover airport offers the lowest fares from Toronto Pearson Intl Airport to St. Louis?

Flights via Chicago (ORD) offer the lowest average round-trip price of C$ 725.

Which airlines fly to St. Louis?

Air Canada, United Airlines and American Airlines are the top three most popular airlines that fly to St. Louis from Toronto Pearson Intl Airport according to our data. Air Canada is the first choice among our users, with 77% of people opting to fly with this airline when travelling to St. Louis. Keep in mind that there are 5 different airlines that fly to St. Louis on a routine basis, so you have a few additional options to choose from.

Which airport is the most popular layover for flights between Toronto Pearson Intl Airport and St. Louis?

Chicago (ORD) was the most common stop: 67% of momondo users choosing one-stop flights on this route connected there.

What is the cheapest airline that flies from Toronto Pearson Intl to Lambert-St Louis?

American Airlines, WestJet, and Air Canada are the most popular carriers operating from Toronto Pearson Intl to Lambert-St Louis

Which layover airport has the shortest connection time from Toronto Pearson Intl Airport to St. Louis?

Detroit (DTW) has the shortest average layover time for this route: 0h 57m.

Which layover airport has the shortest travel time from Toronto Pearson Intl Airport to St. Louis?

Flights connecting via Chicago (ORD) have the shortest average one-way travel time: 4h 33m.

How many flights depart from Toronto Pearson Intl Airport to St. Louis on average per day?

The number of flights available between Toronto Pearson Intl Airport and St. Louis is 2 per day as of March 2026. The most frequent departure time is 2:00p.m., with 100% of daily flights leaving in the afternoon.

When did momondo last update prices for flights from Toronto Pearson Intl Airport to Lambert-St Louis Airport?

Prices for flights from Toronto Pearson Intl Airport to Lambert-St Louis Airport are updated daily.

How many operators does momondo search for flights from Toronto Pearson Intl Airport to Lambert-St Louis Airport?

There are 5 operators available for flights from Toronto Pearson Intl Airport to Lambert-St Louis Airport as of March 2026.

How old do you have to be to fly from Toronto Pearson Intl Airport to Lambert-St Louis Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Toronto Pearson Intl Airport to Lambert-St Louis Airport.

What documentation or ID do you need to fly to Lambert-St Louis Airport?

The travel and health documents required for your trip to Lambert-St Louis Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Lambert-St Louis Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

C$ 270 Cheap Flights from Toronto Pearson Intl Airport to St. Louis in 2026

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Find the cheapest flights from Toronto Pearson Intl Airport to St. Louis

Round-trip

One-way

Last minute

Direct

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Enter your travel dates to find the best prices.

7:20 a.m. - 4:30 p.m.

YYZ

STL

10h 10m

1 stop

2:36 p.m. - 11:29 p.m.

STL

YYZ

7h 53m

1 stop

C$ 513American Airlines

Wed, 27 May - Wed, 10 Jun

6:00 a.m. - 1:43 p.m.

YYZ

STL

8h 43m

1 stop

5:51 a.m. - 2:33 p.m.

STL

YYZ

7h 42m

1 stop

C$ 549American Airlines

Mon, 6 Apr - Wed, 8 Apr

7:10 a.m. - 11:25 p.m.

YYZ

STL

17h 15m

1 stop

8:23 p.m. - 2:05 p.m.

STL

YYZ

16h 42m

2 stops

C$ 550Multiple Airlines

Mon, 13 Apr - Mon, 20 Apr

7:10 a.m. - 11:25 p.m.

YYZ

STL

17h 15m

1 stop

9:55 p.m. - 7:36 p.m.

STL

YYZ

20h 41m

2 stops

C$ 554Multiple Airlines

Tue, 7 Apr - Thu, 16 Apr

11:33 a.m. - 11:46 p.m.

YYZ

STL

13h 13m

1 stop

12:27 p.m. - 11:29 p.m.

STL

YYZ

10h 02m

1 stop

C$ 556American Airlines

Mon, 20 Apr - Wed, 22 Apr

6:15 a.m. - 4:00 p.m.

YYZ

STL

10h 45m

1 stop

5:51 a.m. - 5:43 p.m.

STL

YYZ

10h 52m

1 stop

C$ 569American Airlines

Sat, 25 Apr - Mon, 27 Apr

7:10 a.m. - 11:25 p.m.

YYZ

STL

17h 15m

1 stop

9:55 p.m. - 7:36 p.m.

STL

YYZ

20h 41m

2 stops

C$ 576Multiple Airlines

Thu, 9 Apr - Thu, 16 Apr

7:20 a.m. - 2:06 p.m.

YYZ

STL

7h 46m

1 stop

1:45 p.m. - 11:29 p.m.

STL

YYZ

8h 44m

1 stop

C$ 578American Airlines

Thu, 4 Jun - Mon, 8 Jun

2:00 p.m. - 3:29 p.m.

YYZ

STL

2h 29mdirect

4:05 p.m. - 7:02 p.m.

STL

YYZ

1h 57mdirect

C$ 582Air Canada

Sat, 28 Mar - Mon, 30 Mar

7:15 a.m. - 11:25 p.m.

YYZ

STL

17h 10m

1 stop

8:23 p.m. - 2:05 p.m.

STL

YYZ

16h 42m

2 stops

C$ 583Multiple Airlines

Wed, 8 Apr - Wed, 15 Apr

WestJet flights from Toronto Pearson Intl Airport to St. Louis

Our best WestJet deals on Toronto Pearson Intl Airport to St. Louis flight tickets

WestJet

9 Apr

YYZ12:15 p.m.Toronto Pearson Intl

5h 17m

1 stop

STL4:32 p.m.Lambert-St Louis

12 Apr

STL6:32 a.m.Lambert-St Louis

3h 51m

1 stop

YYZ11:23 a.m.Toronto Pearson Intl

C$ 632

WestJet

3 Apr

YYZ6:10 p.m.Toronto Pearson Intl

6h 48m

1 stop

STL11:58 p.m.Lambert-St Louis

7 Apr

STL5:25 p.m.Lambert-St Louis

4h 41m

1 stop

YYZ11:06 p.m.Toronto Pearson Intl

C$ 635

WestJet

3 Apr

YYZ6:08 p.m.Toronto Pearson Intl

3h 34m

1 stop

STL8:42 p.m.Lambert-St Louis

5 Apr

STL6:29 a.m.Lambert-St Louis

8h 30m

1 stop

YYZ3:59 p.m.Toronto Pearson Intl

C$ 638

American Airlines flights from Toronto Pearson Intl Airport to St. Louis

Our best American Airlines deals on Toronto Pearson Intl Airport to St. Louis flight tickets

American Airlines

15 Apr

YYZ11:33 a.m.Toronto Pearson Intl

11h 44m

1 stop

STL10:17 p.m.Lambert-St Louis

29 Apr

STL12:27 p.m.Lambert-St Louis

10h 02m

1 stop

YYZ11:29 p.m.Toronto Pearson Intl

C$ 513

American Airlines

6 Apr

YYZ6:00 a.m.Toronto Pearson Intl

8h 43m

1 stop

STL1:43 p.m.Lambert-St Louis

8 Apr

STL5:51 a.m.Lambert-St Louis

7h 42m

1 stop

YYZ2:33 p.m.Toronto Pearson Intl

C$ 549

American Airlines

20 Apr

YYZ11:33 a.m.Toronto Pearson Intl

13h 13m

1 stop

STL11:46 p.m.Lambert-St Louis

22 Apr

STL12:27 p.m.Lambert-St Louis

10h 02m

1 stop

YYZ11:29 p.m.Toronto Pearson Intl

C$ 556

momondo 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

Cheapest round-trip

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Wed 27/5

7:20 a.m.-4:30 p.m.

1 stop10h 10m

Lambert-St Louis

Wed 10/6

2:36 p.m.-11:29 p.m.

1 stop7h 53m

C$ 513

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Mon 6/4

6:00 a.m.-1:43 p.m.

1 stop8h 43m

Lambert-St Louis

Wed 8/4

5:51 a.m.-2:33 p.m.

1 stop7h 42m

C$ 549

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Mon 13/4

7:10 a.m.-11:25 p.m.

1 stop17h 15m

Lambert-St Louis

Mon 20/4

8:23 p.m.-2:05 p.m.

2 stops16h 42m

C$ 550

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Tue 7/4

7:10 a.m.-11:25 p.m.

1 stop17h 15m

Lambert-St Louis

Thu 16/4

9:55 p.m.-7:36 p.m.

2 stops20h 41m

C$ 554

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Mon 20/4

11:33 a.m.-11:46 p.m.

1 stop13h 13m

Lambert-St Louis

Wed 22/4

12:27 p.m.-11:29 p.m.

1 stop10h 02m

C$ 556

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Sat 25/4

6:15 a.m.-4:00 p.m.

1 stop10h 45m

Lambert-St Louis

Mon 27/4

5:51 a.m.-5:43 p.m.

1 stop10h 52m

C$ 569

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Thu 9/4

7:10 a.m.-11:25 p.m.

1 stop17h 15m

Lambert-St Louis

Thu 16/4

9:55 p.m.-7:36 p.m.

2 stops20h 41m

C$ 576

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Thu 4/6

7:20 a.m.-2:06 p.m.

1 stop7h 46m

Lambert-St Louis

Mon 8/6

1:45 p.m.-11:29 p.m.

1 stop8h 44m

C$ 578

Quickest round-trip

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Sat 28/3

2:00 p.m.-3:29 p.m.

Nonstop2h 29m

Lambert-St Louis

Mon 30/3

4:05 p.m.-7:02 p.m.

Nonstop1h 57m

C$ 582

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Wed 8/4

7:15 a.m.-11:25 p.m.

1 stop17h 10m

Lambert-St Louis

Wed 15/4

8:23 p.m.-2:05 p.m.

2 stops16h 42m

C$ 583

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Toronto Pearson Intl Airport to St. Louis

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Layovers

Other information

What is the cheapest month to fly to St. Louis?

The month of June is, on average, the cheapest month to fly to St. Louis from Toronto Pearson Intl Airport, with most prices found around C$ 541. If you don’t want to visit St. Louis in June, then you should wait until May to fly from Toronto Pearson Intl Airport, when ticket prices are also cheap, with an average price of C$ 543.

What is the cheapest day to depart on your flight to St. Louis?

Our data shows that Thursday is the least expensive day to fly to St. Louis. Tickets to fly out on this day can be as low as C$ 555. The most expensive day to fly to St. Louis is Monday, with ticket prices averaging around C$ 807.

What is the cheapest time of day to depart on your flight to St. Louis?

The cheapest time of day to fly to St. Louis is in the morning when flights can be purchased for as low as C$ 539. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are C$ 607 on average. Flights to St. Louis from Toronto Pearson Intl Airport in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.

What is the cheapest Toronto Pearson Intl to Lambert-St Louis flight route?

Fly from Toronto Pearson Intl to Lambert-St Louis for the best Toronto Pearson Intl - Lambert-St Louis flight prices

How far in advance should I book a flight to St. Louis?

You are more likely to see cheaper flights to St. Louis from Toronto Pearson Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to St. Louis for around C$ 630 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to St. Louis from Toronto Pearson Intl Airport for as low as C$ 488 on momondo.

What cabin class options are available on Toronto Pearson Intl to Lambert-St Louis flights?

There is only 1 cabin class available to choose from on Toronto Pearson Intl to Lambert-St Louis flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Toronto Pearson Intl Airport to St. Louis flights?

You could potentially save up to 29% on your flight if you consider stops on a Toronto Pearson Intl Airport to St. Louis flight.

How have Toronto Pearson Intl Airport to St. Louis flight prices changed over time?

As of March 2026, prices for Toronto Pearson Intl Airport to St. Louis flights are approximately 33% more expensive when compared to flights at the same time last year.

When to book flights from Toronto Pearson Intl Airport to St. Louis

Are you open to changing your travel dates? Check out the ideal times to fly from Toronto Pearson Intl Airport to St. Louis according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Toronto Pearson Intl Airport to St. Louis (YYZ to STL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Toronto Pearson Intl Airport to St. Louis

Best price found	C$ 506
Fastest flight time	2h 06m
Direct flights	Every day
Airports in St. Louis	1 airport

The best flight deal from Toronto Pearson Intl Airport to St. Louis found on momondo in the last 72 hours is C$ 506

The fastest flight from Toronto Pearson Intl Airport to St. Louis takes 2h 06m

Direct flights go from Toronto Pearson Intl Airport to St. Louis every day.

There is 1 airport in St. Louis. From Toronto Pearson Intl Airport there are direct flights to Lambert-St Louis (STL).

Search flight deals

How far is Toronto Pearson Intl to Lambert-St Louis by plane?
The distance between Toronto Pearson Intl and Lambert-St Louis is about 1047.0 km. Typically, this will take 2h 06m by plane in normal conditions.
When did momondo last update prices for flights from Toronto Pearson Intl Airport to Lambert-St Louis Airport?
Prices for flights from Toronto Pearson Intl Airport to Lambert-St Louis Airport are updated daily.
How many operators does momondo search for flights from Toronto Pearson Intl Airport to Lambert-St Louis Airport?
There are 5 operators available for flights from Toronto Pearson Intl Airport to Lambert-St Louis Airport as of March 2026.
How old do you have to be to fly from Toronto Pearson Intl Airport to Lambert-St Louis Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Toronto Pearson Intl Airport to Lambert-St Louis Airport.
What documentation or ID do you need to fly to Lambert-St Louis Airport?
The travel and health documents required for your trip to Lambert-St Louis Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Lambert-St Louis Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Toronto Pearson Intl Airport to St. Louis?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Toronto Pearson Intl Airport to St. Louis is Embraer 175 (69.03% of total bookings). The next most popular plane models are Canadair (Bombardier) Regional Jet 900 (8.85%), Airbus A220-300 (7.96%), and Airbus A319 (5.31%).
What is the most popular airline from Toronto Pearson Intl Airport to St. Louis?
Based on momondo bookings for flights between Toronto Pearson Intl Airport and St. Louis, the leading airline is Air Canada, making up 73% of the total bookings. Other popular airlines include United Airlines with 14%, American Airlines with 6%, and Delta with 4%.

Best airlines flying from Toronto Pearson Intl Airport to St. Louis

Compare and see reviews for airlines that fly from Toronto Pearson Intl Airport to St. Louis with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom C$ 330	Free Cancellation	Rating 7.4 9,429 reviews	Search United Airlines flights
American Airlines	PriceFrom C$ 362	Free Cancellation	Rating 7.1 11,466 reviews	Search American Airlines flights
Air Canada	PriceFrom C$ 456	Free Cancellation	Rating 7.1 10,805 reviews	Search Air Canada flights
Delta	PriceFrom C$ 471	Free Cancellation	Rating 7.9 8,292 reviews	Search Delta flights
WestJet	PriceFrom C$ 554	Free Cancellation	Rating 7.2 3,295 reviews	Search WestJet flights

United Airlines Flights From Toronto Pearson Intl Airport to St. Louis
United Airlines operates around 7 flights from Toronto Pearson Intl Airport to St. Louis every week. The average price of these flights found in the last 72 hours has been C$ 573, but momondo users have found United Airlines deals from Toronto Pearson Intl Airport to St. Louis from as low as C$ 330 round-trip. United Airlines has been scored 7.4/10 in 9,429 reviews.
Air Canada Flights From Toronto Pearson Intl Airport to St. Louis
C$ 456 is the best Air Canada flight deal from Toronto Pearson Intl Airport to St. Louis found on momondo over the last 72 hours. The average Air Canada ticket price found was closer to C$ 589, however, with flight time and availability significantly affecting the price. Air Canada (7.1/10 from 10,805 user reviews) flies into St. Louis from Toronto Pearson Intl Airport 7 times in an average week so prices can vary.

Why use momondo?

Why should I use momondo to find a flight deal from Toronto to St. Louis?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to St. Louis from Toronto.

Can I find flights from Toronto to St. Louis with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to St. Louis from Toronto with this policy.

How can momondo help me find flights from Toronto to St. Louis?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to St. Louis from Toronto.

I’m not ready to book a flight from Toronto to St. Louis right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to St. Louis from Toronto. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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Cheap flights from Toronto Pearson Intl Airport to St. Louis from C$ 270

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WestJet flights from Toronto Pearson Intl Airport to St. Louis

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American Airlines flights from Toronto Pearson Intl Airport to St. Louis

Our best American Airlines deals on Toronto Pearson Intl Airport to St. Louis flight tickets

momondo Fare Finder

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

See travel insights to St. Louis from

How to get the cheapest flight ticket from Toronto Pearson Intl Airport to St. Louis

What is the cheapest month to fly to St. Louis?

What is the cheapest day to depart on your flight to St. Louis?

What is the cheapest time of day to depart on your flight to St. Louis?

What is the cheapest Toronto Pearson Intl to Lambert-St Louis flight route?

How far in advance should I book a flight to St. Louis?

What cabin class options are available on Toronto Pearson Intl to Lambert-St Louis flights?

Can stopping save me money on Toronto Pearson Intl Airport to St. Louis flights?

How have Toronto Pearson Intl Airport to St. Louis flight prices changed over time?

What is the cheapest airline that flies from Toronto Pearson Intl to Lambert-St Louis?

Which airlines fly to St. Louis?

Which airport is the most popular layover for flights between Toronto Pearson Intl Airport and St. Louis?

Which layover airport offers the lowest fares from Toronto Pearson Intl Airport to St. Louis?

Which layover airport has the shortest travel time from Toronto Pearson Intl Airport to St. Louis?

Which layover airport has the shortest connection time from Toronto Pearson Intl Airport to St. Louis?

How many flights depart from Toronto Pearson Intl Airport to St. Louis on average per day?

How many flights depart from Toronto Pearson Intl Airport to St. Louis on average per week?

When to book flights from Toronto Pearson Intl Airport to St. Louis

Cheap Toronto Pearson Intl Airport to St. Louis (YYZ to STL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Toronto Pearson Intl Airport to St. Louis

Best price found

Fastest flight time

Direct flights

Airports in St. Louis

Best airlines flying from Toronto Pearson Intl Airport to St. Louis

Compare and see reviews for airlines that fly from Toronto Pearson Intl Airport to St. Louis with momondo

United Airlines Flights From Toronto Pearson Intl Airport to St. Louis

Air Canada Flights From Toronto Pearson Intl Airport to St. Louis

Why use momondo?

An easier way to manage your St. Louis trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

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