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$ 728.

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 69% 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 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 week?

The number of flights available between Toronto Pearson Intl Airport and St. Louis is 22 per week as of May 2026. The most frequent departure day is Mon, with 18% of weekly flights leaving on this day.

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.

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.

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 3 per day as of May 2026. The most frequent departure time is 7:00p.m., with 63% of daily flights leaving in the evening.

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 May 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$ 256 Cheap Flights from Toronto Pearson Intl Airport to St. Louis in 2026

Q: What is the typical price of a round-trip flight between Toronto Pearson Intl Airport and St. Louis?

Prices are currently low for flights on this route. Typical prices usually range from C$ 660 to C$ 464. The lowest price recently found on this route was C$ 465.

1 adult

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.

9:50 a.m. - 11:57 p.m.

YYZ

STL

15h 07m

1 stop

5:27 p.m. - 2:05 p.m.

STL

YYZ

19h 38m

2 stops

C$ 465Multiple Airlines

Thu, 4 Jun - Mon, 8 Jun

11:39 a.m. - 8:30 p.m.

YYZ

STL

9h 51m

1 stop

7:03 a.m. - 5:44 p.m.

STL

YYZ

9h 41m

1 stop

C$ 468American Airlines

Wed, 27 May - Wed, 10 Jun

1:15 p.m. - 11:54 p.m.

YYZ

STL

11h 39m

1 stop

7:03 a.m. - 5:44 p.m.

STL

YYZ

9h 41m

1 stop

C$ 469American Airlines

Wed, 27 May - Wed, 10 Jun

11:39 a.m. - 7:20 p.m.

YYZ

STL

8h 41m

1 stop

2:32 p.m. - 11:29 p.m.

STL

YYZ

7h 57m

1 stop

C$ 471American Airlines

Wed, 27 May - Wed, 10 Jun

9:50 a.m. - 11:57 p.m.

YYZ

STL

15h 07m

1 stop

4:19 p.m. - 4:45 p.m.

STL

YYZ

23h 26m

1 stop

C$ 498Multiple Airlines

Thu, 4 Jun - Mon, 8 Jun

7:25 a.m. - 2:02 p.m.

YYZ

STL

7h 37m

1 stop

2:32 p.m. - 11:29 p.m.

STL

YYZ

7h 57m

1 stop

C$ 506American Airlines

Wed, 24 Jun - Tue, 30 Jun

7:45 a.m. - 11:57 p.m.

YYZ

STL

17h 12m

1 stop

6:31 p.m. - 2:05 p.m.

STL

YYZ

42h 34m

2 stops

C$ 510Multiple Airlines

Thu, 4 Jun - Thu, 18 Jun

4:45 p.m. - 6:36 p.m.

YYZ

STL

26h 51m

2 stops

4:17 p.m. - 4:45 p.m.

STL

YYZ

23h 28m

1 stop

C$ 524Multiple Airlines

Wed, 17 Jun - Wed, 24 Jun

9:50 a.m. - 11:57 p.m.

YYZ

STL

15h 07m

1 stop

7:20 p.m. - 9:55 p.m.

STL

YYZ

25h 35m

2 stops

C$ 525Multiple Airlines

Thu, 4 Jun - Sun, 7 Jun

3:45 p.m. - 7:57 p.m.

YYZ

STL

5h 12m

1 stop

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

STL

YYZ

8h 44m

1 stop

C$ 532American Airlines

Sat, 13 Jun - Tue, 16 Jun

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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

27 May

YYZ11:39 a.m.Toronto Pearson Intl

9h 51m

1 stop

STL8:30 p.m.Lambert-St Louis

10 Jun

STL7:03 a.m.Lambert-St Louis

9h 41m

1 stop

YYZ5:44 p.m.Toronto Pearson Intl

C$ 468

American Airlines

27 May

YYZ1:15 p.m.Toronto Pearson Intl

11h 39m

1 stop

STL11:54 p.m.Lambert-St Louis

10 Jun

STL7:03 a.m.Lambert-St Louis

9h 41m

1 stop

YYZ5:44 p.m.Toronto Pearson Intl

C$ 469

American Airlines

27 May

YYZ11:39 a.m.Toronto Pearson Intl

8h 41m

1 stop

STL7:20 p.m.Lambert-St Louis

10 Jun

STL2:32 p.m.Lambert-St Louis

7h 57m

1 stop

YYZ11:29 p.m.Toronto Pearson Intl

C$ 471

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

14 May

YYZ10:25 p.m.Toronto Pearson Intl

20h 31m

2 stops

STL5:56 p.m.Lambert-St Louis

18 May

STL6:15 p.m.Lambert-St Louis

13h 44m

1 stop

YYZ8:59 a.m.Toronto Pearson Intl

C$ 1,209

WestJet

11 May

YYZ12:40 p.m.Toronto Pearson Intl

11h 41m

2 stops

STL11:21 p.m.Lambert-St Louis

12 May

STL8:53 a.m.Lambert-St Louis

10h 02m

2 stops

YYZ7:55 p.m.Toronto Pearson Intl

C$ 1,294

WestJet

14 May

YYZ8:00 a.m.Toronto Pearson Intl

16h 21m

2 stops

STL11:21 p.m.Lambert-St Louis

18 May

STL6:21 a.m.Lambert-St Louis

14h 14m

2 stops

YYZ9:35 p.m.Toronto Pearson Intl

C$ 1,669

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

Thu 4/6

9:50 a.m.-11:57 p.m.

1 stop15h 07m

Lambert-St Louis

Mon 8/6

5:27 p.m.-2:05 p.m.

2 stops19h 38m

C$ 465

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Wed 27/5

11:39 a.m.-8:30 p.m.

1 stop9h 51m

Lambert-St Louis

Wed 10/6

7:03 a.m.-5:44 p.m.

1 stop9h 41m

C$ 468

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Wed 27/5

1:15 p.m.-11:54 p.m.

1 stop11h 39m

Lambert-St Louis

Wed 10/6

7:03 a.m.-5:44 p.m.

1 stop9h 41m

C$ 469

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Wed 27/5

11:39 a.m.-7:20 p.m.

1 stop8h 41m

Lambert-St Louis

Wed 10/6

2:32 p.m.-11:29 p.m.

1 stop7h 57m

C$ 471

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Thu 4/6

9:50 a.m.-11:57 p.m.

1 stop15h 07m

Lambert-St Louis

Mon 8/6

4:19 p.m.-4:45 p.m.

1 stop23h 26m

C$ 498

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Wed 24/6

7:25 a.m.-2:02 p.m.

1 stop7h 37m

Lambert-St Louis

Tue 30/6

2:32 p.m.-11:29 p.m.

1 stop7h 57m

C$ 506

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Thu 4/6

7:45 a.m.-11:57 p.m.

1 stop17h 12m

Lambert-St Louis

Thu 18/6

6:31 p.m.-2:05 p.m.

2 stops42h 34m

C$ 510

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Wed 17/6

4:45 p.m.-6:36 p.m.

2 stops26h 51m

Lambert-St Louis

Wed 24/6

4:17 p.m.-4:45 p.m.

1 stop23h 28m

C$ 524

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Thu 4/6

9:50 a.m.-11:57 p.m.

1 stop15h 07m

Lambert-St Louis

Sun 7/6

7:20 p.m.-9:55 p.m.

2 stops25h 35m

C$ 525

Quickest round-trip

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Sat 13/6

3:45 p.m.-7:57 p.m.

1 stop5h 12m

Lambert-St Louis

Tue 16/6

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

1 stop8h 44m

C$ 532

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 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$ 550.

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$ 574. The most expensive day to fly to St. Louis is Monday, with ticket prices averaging around C$ 973.

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$ 571. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are C$ 706 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 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$ 666 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.

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 May 2026, prices for Toronto Pearson Intl Airport to St. Louis flights are approximately 8% 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$ 322
Fastest flight time	2h 06m
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$ 322. The best round-trip flight deal from Toronto Pearson Intl Airport to St. Louis found on momondo in the last 72 hours is C$ 655.

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

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 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 May 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 (48.33% of total bookings). The next most popular plane models are Canadair (Bombardier) Regional Jet 900 (21.67%), Airbus A220-300 (15.83%), and Airbus A319 (5.00%).
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 66% of the total bookings. Other popular airlines include United Airlines with 17%, American Airlines with 7%, 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$ 333	Free Cancellation	Rating 7.4 9,680 reviews	Search United Airlines flights
American Airlines	PriceFrom C$ 359	Free Cancellation	Rating 7.1 11,670 reviews	Search American Airlines flights
Air Canada	PriceFrom C$ 459	Free Cancellation	Rating 7.1 10,995 reviews	Search Air Canada flights
Delta	PriceFrom C$ 467	Free Cancellation	Rating 7.9 8,459 reviews	Search Delta flights
WestJet	PriceFrom C$ 549	Free Cancellation	Rating 7.2 3,331 reviews	Search WestJet flights

United Airlines Flights From Toronto Pearson Intl Airport to St. Louis
United Airlines operates around 11 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$ 588, but momondo users have found United Airlines deals from Toronto Pearson Intl Airport to St. Louis from as low as C$ 333 round-trip. United Airlines has been scored 7.4/10 in 9,680 reviews.
Air Canada Flights From Toronto Pearson Intl Airport to St. Louis
C$ 459 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$ 608, however, with flight time and availability significantly affecting the price. Air Canada (7.1/10 from 10,995 user reviews) flies into St. Louis from Toronto Pearson Intl Airport 11 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.

An easier way to manage your St. Louis trip

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Cheap flights from Toronto Pearson Intl Airport to St. Louis from C$ 249

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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

WestJet flights from Toronto Pearson Intl Airport to St. Louis

Our best WestJet 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 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?

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?

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.

Find better results for your trip to the United States

Airports servicing Missouri

Fly your favourite airline to St. Louis

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