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$ 751.

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.

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 1 per day as of June 2026. The most frequent departure time is 11:00a.m., with 50% of daily flights leaving at noon.

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 71% of people opting to fly with this airline when travelling to St. Louis. Keep in mind that there are 4 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: 75% 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 is the most popular carrier operating from Toronto Pearson Intl to Lambert-St Louis

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 12 per week as of June 2026. The most frequent departure day is Mon, with 33% of weekly flights leaving on this day.

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

Flights connecting via Detroit (DTW) have the shortest average one-way travel time: 4h 39m.

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 4 operators available for flights from Toronto Pearson Intl Airport to Lambert-St Louis Airport as of June 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$ 275 Cheap Flights from Toronto Pearson Intl Airport to St. Louis in 2026

Discover deals from 900+ travel sites with momondo.

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

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

3:13 p.m. - 12:27 a.m.

YYZ

STL

10h 14m

1 stop

5:00 a.m. - 2:32 p.m.

STL

YYZ

8h 32m

1 stop

C$ 435American Airlines

Wed, 9 Sep - Tue, 22 Sep

1:15 p.m. - 12:27 a.m.

YYZ

STL

12h 12m

1 stop

5:00 a.m. - 2:32 p.m.

STL

YYZ

8h 32m

1 stop

C$ 438American Airlines

Wed, 9 Sep - Tue, 22 Sep

7:17 a.m. - 1:53 p.m.

YYZ

STL

7h 36m

1 stop

6:55 a.m. - 5:34 p.m.

STL

YYZ

9h 39m

1 stop

C$ 455American Airlines

Wed, 15 Jul - Wed, 22 Jul

7:17 a.m. - 1:53 p.m.

YYZ

STL

7h 36m

1 stop

1:25 p.m. - 11:29 p.m.

STL

YYZ

9h 04m

1 stop

C$ 469American Airlines

Wed, 15 Jul - Wed, 22 Jul

7:17 a.m. - 1:53 p.m.

YYZ

STL

7h 36m

1 stop

9:08 a.m. - 5:34 p.m.

STL

YYZ

7h 26m

1 stop

C$ 470American Airlines

Tue, 14 Jul - Tue, 21 Jul

7:17 a.m. - 4:40 p.m.

YYZ

STL

10h 23m

1 stop

6:00 a.m. - 2:33 p.m.

STL

YYZ

7h 33m

1 stop

C$ 474American Airlines

Wed, 29 Jul - Wed, 5 Aug

6:15 a.m. - 10:29 a.m.

YYZ

STL

5h 14m

1 stop

7:21 a.m. - 6:35 p.m.

STL

YYZ

10h 14m

1 stop

C$ 549American Airlines

Sun, 27 Sep - Wed, 30 Sep

7:27 a.m. - 2:50 p.m.

YYZ

STL

8h 23m

1 stop

9:08 a.m. - 5:34 p.m.

STL

YYZ

7h 26m

1 stop

C$ 572American Airlines

Thu, 16 Jul - Tue, 21 Jul

3:50 p.m. - 6:15 p.m.

YYZ

STL

27h 25m

2 stops

7:03 p.m. - 6:39 a.m.

STL

YYZ

10h 36m

1 stop

C$ 574Multiple Airlines

Wed, 15 Jul - Wed, 22 Jul

3:50 p.m. - 6:15 p.m.

YYZ

STL

27h 25m

2 stops

7:03 p.m. - 6:39 a.m.

STL

YYZ

10h 36m

1 stop

C$ 575Multiple Airlines

Wed, 15 Jul - Wed, 22 Jul

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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

American Airlines

9 Sep

YYZ3:13 p.m.Toronto Pearson Intl

10h 14m

1 stop

STL12:27 a.m.Lambert-St Louis

22 Sep

STL5:00 a.m.Lambert-St Louis

8h 32m

1 stop

YYZ2:32 p.m.Toronto Pearson Intl

C$ 435

American Airlines

9 Sep

YYZ1:15 p.m.Toronto Pearson Intl

12h 12m

1 stop

STL12:27 a.m.Lambert-St Louis

22 Sep

STL5:00 a.m.Lambert-St Louis

8h 32m

1 stop

YYZ2:32 p.m.Toronto Pearson Intl

C$ 438

American Airlines

15 Jul

YYZ7:17 a.m.Toronto Pearson Intl

7h 36m

1 stop

STL1:53 p.m.Lambert-St Louis

22 Jul

STL6:55 a.m.Lambert-St Louis

9h 39m

1 stop

YYZ5:34 p.m.Toronto Pearson Intl

C$ 455

Air Canada flights from Toronto Pearson Intl Airport to St. Louis

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

Air Canada

10 Sep

YYZ6:55 p.m.Toronto Pearson Intl

2h 05m

STL8:00 p.m.Lambert-St Louis

22 Oct

STL8:55 a.m.Lambert-St Louis

1h 54m

YYZ11:49 a.m.Toronto Pearson Intl

C$ 624

Air Canada

9 Sep

YYZ6:55 p.m.Toronto Pearson Intl

2h 05m

STL8:00 p.m.Lambert-St Louis

22 Sep

STL8:55 a.m.Lambert-St Louis

1h 54m

YYZ11:49 a.m.Toronto Pearson Intl

C$ 627

Air Canada

9 Sep

YYZ6:55 p.m.Toronto Pearson Intl

2h 05m

STL8:00 p.m.Lambert-St Louis

22 Sep

STL8:55 a.m.Lambert-St Louis

1h 54m

YYZ11:49 a.m.Toronto Pearson Intl

C$ 628

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 9/9

3:13 p.m.-12:27 a.m.

1 stop10h 14m

Lambert-St Louis

Tue 22/9

5:00 a.m.-2:32 p.m.

1 stop8h 32m

C$ 435

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Wed 9/9

1:15 p.m.-12:27 a.m.

1 stop12h 12m

Lambert-St Louis

Tue 22/9

5:00 a.m.-2:32 p.m.

1 stop8h 32m

C$ 438

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Wed 15/7

7:17 a.m.-1:53 p.m.

1 stop7h 36m

Lambert-St Louis

Wed 22/7

6:55 a.m.-5:34 p.m.

1 stop9h 39m

C$ 455

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Wed 15/7

7:17 a.m.-1:53 p.m.

1 stop7h 36m

Lambert-St Louis

Wed 22/7

1:25 p.m.-11:29 p.m.

1 stop9h 04m

C$ 469

Quickest round-trip

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Tue 14/7

7:17 a.m.-1:53 p.m.

1 stop7h 36m

Lambert-St Louis

Tue 21/7

9:08 a.m.-5:34 p.m.

1 stop7h 26m

C$ 470

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Wed 29/7

7:17 a.m.-4:40 p.m.

1 stop10h 23m

Lambert-St Louis

Wed 5/8

6:00 a.m.-2:33 p.m.

1 stop7h 33m

C$ 474

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Sun 27/9

6:15 a.m.-10:29 a.m.

1 stop5h 14m

Lambert-St Louis

Wed 30/9

7:21 a.m.-6:35 p.m.

1 stop10h 14m

C$ 548

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Thu 16/7

7:27 a.m.-2:50 p.m.

1 stop8h 23m

Lambert-St Louis

Tue 21/7

9:08 a.m.-5:34 p.m.

1 stop7h 26m

C$ 572

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Wed 15/7

3:50 p.m.-6:15 p.m.

2 stops27h 25m

Lambert-St Louis

Wed 22/7

7:03 p.m.-6:39 a.m.

1 stop10h 36m

C$ 574

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Wed 15/7

3:50 p.m.-6:15 p.m.

2 stops27h 25m

Lambert-St Louis

Wed 22/7

7:03 p.m.-6:39 a.m.

1 stop10h 36m

C$ 575

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 typical price of a round-trip flight between Toronto Pearson Intl Airport and St. Louis?

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

The month of January is, on average, the cheapest month to fly to St. Louis from Toronto Pearson Intl Airport, with most prices found around C$ 592. If you don’t want to visit St. Louis in January, then you should wait until February to fly from Toronto Pearson Intl Airport, when ticket prices are also cheap, with an average price of C$ 599.

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

Our data shows that Saturday is the least expensive day to fly to St. Louis. Tickets to fly out on this day can be as low as C$ 594. The most expensive day to fly to St. Louis is Monday, with ticket prices averaging around C$ 900.

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 at noon when flights can be purchased for as low as C$ 635. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are C$ 1,014 on average. Flights to St. Louis from Toronto Pearson Intl Airport in the evening 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 from Toronto Pearson Intl Airport 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$ 722 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$ 504 on momondo.

What cabin class options are available on Toronto Pearson Intl Airport to St. Louis flights?

There is only 1 cabin class available to choose from on Toronto Pearson Intl Airport to 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?

No. A direct flight is the cheapest option for a flight between Toronto Pearson Intl Airport to St. Louis.

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

As of June 2026, prices for Toronto Pearson Intl Airport to St. Louis flights are approximately 1% cheaper 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$ 380
Fastest flight time	2h 05m
Direct flights	Every day
Airports in St. Louis	1 airport

The best one-way flight to St. Louis from Toronto Pearson Intl Airport in the past 72 hours is C$ 380. The best round-trip flight deal from Toronto Pearson Intl Airport to St. Louis found on momondo in the last 72 hours is C$ 590.

The fastest flight from Toronto Pearson Intl Airport to St. Louis takes 2h 05m

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

Frequently asked questions about flying from Toronto Pearson Intl Airport to St. Louis

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 05m 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 4 operators available for flights from Toronto Pearson Intl Airport to Lambert-St Louis Airport as of June 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 Canadair (Bombardier) Regional Jet 900 (42.48% of total bookings). The next most popular plane models are Airbus A220-300 (24.18%), Embraer 175 (22.22%), and Airbus A319 (3.92%).
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 71% of the total bookings. Other popular airlines include United Airlines with 16%, American Airlines with 8%, and WestJet with 5%.

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$ 343	Free Cancellation	Rating 7.4 9,859 reviews	Search United Airlines flights
American Airlines	PriceFrom C$ 371	Free Cancellation	Rating 7.1 11,686 reviews	Search American Airlines flights
Air Canada	PriceFrom C$ 447	Free Cancellation	Rating 7.1 11,210 reviews	Search Air Canada flights
WestJet	PriceFrom C$ 638	Free Cancellation	Rating 7.2 3,375 reviews	Search WestJet flights

United Airlines Flights From Toronto Pearson Intl Airport to St. Louis
United Airlines operates around 6 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$ 642, but momondo users have found United Airlines deals from Toronto Pearson Intl Airport to St. Louis from as low as C$ 343 round-trip. United Airlines has been scored 7.4/10 in 9,859 reviews.
Air Canada Flights From Toronto Pearson Intl Airport to St. Louis
C$ 447 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$ 645, however, with flight time and availability significantly affecting the price. Air Canada (7.1/10 from 11,210 user reviews) flies into St. Louis from Toronto Pearson Intl Airport 6 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$ 275

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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

Air Canada flights from Toronto Pearson Intl Airport to St. Louis

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

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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 typical price of a round-trip flight between Toronto Pearson Intl Airport and 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 from Toronto Pearson Intl Airport to St. Louis?

What cabin class options are available on Toronto Pearson Intl Airport to 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

Frequently asked questions about flying from Toronto Pearson Intl Airport to 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.

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