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

As of July 2025, 2 flights take off from Toronto and land in St. Louis each day. The most common flight departure time for this route is 2:00p.m., with 53% of daily flights taking off in the afternoon.

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

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

Which airlines fly to St. Louis?

Air Canada, United Airlines and WestJet are the top three most popular airlines that fly to St. Louis from Toronto according to our data. Air Canada is the first choice among our users, with 74% 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.

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

As of July 2025, there are 18 flights per week flying from Toronto to St. Louis. The most common day of the week flights depart is Wed, with 22% of flights taking off on this day.

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

Prices for flights from Toronto to Lambert-St Louis Airport are refreshed on a daily basis.

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

As of July 2025, there are 4 operators available to choose from for flights from Toronto to Lambert-St Louis Airport.

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

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Toronto 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$ 240 Cheap Flights from Toronto to St. Louis in 2025

1 adult

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Find the cheapest flights from Toronto to St. Louis

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

4:44 p.m. - 11:56 p.m.YYZ-STL

8h 12m1 stop

6:00 a.m. - 4:04 p.m.STL-YYZ

9h 04m1 stop

C$ 443American Airlines

Find Deal

Sat, 8 Nov - Sat, 15 Nov

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

2h 03mdirect

4:05 p.m. - 7:00 p.m.STL-YYZ

1h 55mdirect

C$ 486Air Canada

Find Deal

Fri, 12 Sep - Sun, 14 Sep

6:04 a.m. - 4:49 p.m.YYZ-STL

11h 45m1 stop

6:05 a.m. - 4:08 p.m.STL-YYZ

9h 03m1 stop

C$ 561Delta

Find Deal

Mon, 8 Sep - Thu, 11 Sep

6:45 a.m. - 11:59 p.m.YYZ-STL

18h 14m2 stops

10:35 a.m. - 8:55 p.m.STL-YYZ

9h 20m1 stop

C$ 575

Find Deal

Sun, 7 Sep - Thu, 11 Sep

6:45 a.m. - 11:59 p.m.YYZ-STL

18h 14m2 stops

10:35 a.m. - 8:55 p.m.STL-YYZ

9h 20m1 stop

C$ 595

Find Deal

Sun, 7 Sep - Thu, 11 Sep

12:45 p.m. - 9:32 p.m.YYZ-STL

9h 47m2 stops

7:04 p.m. - 9:58 a.m.STL-YYZ

13h 54m1 stop

C$ 632United Airlines

Find Deal

Tue, 26 Aug - Tue, 2 Sep

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

14h 46m3 stops

9:17 a.m. - 3:46 p.m.STL-YYZ

5h 29m1 stop

C$ 633United Airlines

Find Deal

Thu, 11 Sep - Tue, 16 Sep

6:07 p.m. - 11:14 p.m.YYZ-STL

6h 07m1 stop

6:00 a.m. - 6:04 p.m.STL-YYZ

11h 04m2 stops

C$ 652WestJet

Find Deal

Mon, 18 Aug - Thu, 21 Aug

6:49 p.m. - 8:06 a.m.YYZ-STL

14h 17m1 stop

12:29 p.m. - 11:47 p.m.STL-YYZ

10h 18m1 stop

C$ 666Delta

Find Deal

Wed, 20 Aug - Wed, 10 Sep

8:00 p.m. - 9:15 a.m.YYZ-STL

14h 15m2 stops

6:40 a.m. - 5:23 p.m.STL-YYZ

9h 43m1 stop

C$ 675WestJet

Find Deal

Tue, 9 Sep - Thu, 11 Sep

Air Canada flights from Toronto to St. Louis

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

Air Canada

12 Sep

YYZ2:15 p.m.Toronto Pearson Intl

2h 03m

STL3:18 p.m.Lambert-St Louis

14 Sep

STL4:05 p.m.Lambert-St Louis

1h 55m

YYZ7:00 p.m.Toronto Pearson Intl

C$ 486

Find similar

Air Canada

12 Sep

YYZ2:15 p.m.Toronto Pearson Intl

2h 03m

STL3:18 p.m.Lambert-St Louis

14 Sep

STL1:30 p.m.Lambert-St Louis

7h 09m

1 stop

YYZ9:39 p.m.Toronto Pearson Intl

C$ 492

Find similar

Air Canada

8 Nov

YYZ2:00 p.m.Toronto Pearson Intl

2h 29m

STL3:29 p.m.Lambert-St Louis

15 Nov

STL4:05 p.m.Lambert-St Louis

2h 01m

YYZ7:06 p.m.Toronto Pearson Intl

C$ 509

Find similar

American Airlines flights from Toronto to St. Louis

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

American Airlines

8 Nov

YYZ4:44 p.m.Toronto Pearson Intl

8h 12m

1 stop

STL11:56 p.m.Lambert-St Louis

15 Nov

STL6:00 a.m.Lambert-St Louis

9h 04m

1 stop

YYZ4:04 p.m.Toronto Pearson Intl

C$ 443

Find similar

American Airlines

5 Sep

YYZ3:11 p.m.Toronto Pearson Intl

21h 19m

1 stop

STL11:30 a.m.Lambert-St Louis

8 Sep

STL7:59 p.m.Lambert-St Louis

15h 33m

1 stop

YYZ12:32 p.m.Toronto Pearson Intl

C$ 488

Find similar

American Airlines

9 Sep

YYZ1:15 p.m.Toronto Pearson Intl

8h 17m

1 stop

STL8:32 p.m.Lambert-St Louis

11 Sep

STL6:05 a.m.Lambert-St Louis

7h 26m

1 stop

YYZ2:31 p.m.Toronto Pearson Intl

C$ 499

Find similar

Fly from

Fly to

Route

Depart

Return

Price

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Sat 8/11

4:44 p.m.-11:56 p.m.

1 stop8h 12m

Lambert-St Louis

Sat 15/11

6:00 a.m.-4:04 p.m.

1 stop9h 04m

C$ 443

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Fri 12/9

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

Nonstop2h 03m

Lambert-St Louis

Sun 14/9

4:05 p.m.-7:00 p.m.

Nonstop1h 55m

C$ 486

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Mon 8/9

6:04 a.m.-4:49 p.m.

1 stop11h 45m

Lambert-St Louis

Thu 11/9

6:05 a.m.-4:08 p.m.

1 stop9h 03m

C$ 561

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Sun 7/9

6:45 a.m.-11:59 p.m.

2 stops18h 14m

Lambert-St Louis

Thu 11/9

10:35 a.m.-8:55 p.m.

1 stop9h 20m

C$ 575

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Sun 7/9

6:45 a.m.-11:59 p.m.

2 stops18h 14m

Lambert-St Louis

Thu 11/9

10:35 a.m.-8:55 p.m.

1 stop9h 20m

C$ 595

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Tue 26/8

12:45 p.m.-9:32 p.m.

2 stops9h 47m

Lambert-St Louis

Tue 2/9

7:04 p.m.-9:58 a.m.

1 stop13h 54m

C$ 632

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Thu 11/9

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

3 stops14h 46m

Lambert-St Louis

Tue 16/9

9:17 a.m.-3:46 p.m.

1 stop5h 29m

C$ 633

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Mon 18/8

6:07 p.m.-11:14 p.m.

1 stop6h 07m

Lambert-St Louis

Thu 21/8

6:00 a.m.-6:04 p.m.

2 stops11h 04m

C$ 652

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Wed 20/8

6:49 p.m.-8:06 a.m.

1 stop14h 17m

Lambert-St Louis

Wed 10/9

12:29 p.m.-11:47 p.m.

1 stop10h 18m

C$ 666

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Tue 9/9

8:00 p.m.-9:15 a.m.

2 stops14h 15m

Lambert-St Louis

Thu 11/9

6:40 a.m.-5:23 p.m.

1 stop9h 43m

C$ 675

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 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

Other information

What is the typical price of a round-trip flight between Toronto 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, with most prices found around C$ 513. If you don’t want to visit St. Louis in June, then you should wait until November to fly from Toronto, when ticket prices are also cheap, with an average price of C$ 640.

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$ 601. The most expensive day to fly to St. Louis is Sunday, with ticket prices averaging around C$ 770.

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$ 540. If you have a flexible travel schedule, then try to avoid flying at noon when prices are C$ 692 on average. Flights to St. Louis from Toronto at noon are generally more expensive because this time of day is more convenient for travellers’ schedules.

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

Fly from Toronto Pearson Intl to Lambert-St Louis for the best Toronto - 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 when booking weeks ahead of your departure date. In general, you can expect to find flights to St. Louis for around C$ 672 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 for as low as C$ 497 on momondo.

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

There are 1 cabin classes available to choose from on Toronto 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 to St. Louis flights?

You could potentially save up to 9% on your flight if you consider stops on a Toronto to St. Louis flight.

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

As of July 2025, prices for Toronto to St. Louis flights are approximately 6% more expensive when compared to flights at the same time last year.

When to book flights from Toronto to St. Louis

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

Estimated round-trip price

Cheap Toronto to St. Louis (YTO to STL) flight deals and tips

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

Best price found	C$ 240
Fastest flight time	2h 03m
Direct flights	Every day
Airports in St. Louis	1 airport

The best one-way flight to St. Louis from Toronto in the past 72 hours is C$ 240. The best round-trip flight deal from Toronto to St. Louis found on momondo in the last 72 hours is C$ 443.

The fastest flight from Toronto to St. Louis takes 2h 03m

Direct flights go from Toronto to St. Louis every day.

There is 1 airport near St. Louis: Lambert-St Louis (STL)

Search flight deals

How far is Toronto to Lambert-St Louis by plane?
Toronto and Lambert-St Louis are 1062.1 km apart from one another. By plane, this route typically takes 2h 03m.
When did momondo last update prices for flights from Toronto to Lambert-St Louis Airport?
Prices for flights from Toronto to Lambert-St Louis Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Toronto to Lambert-St Louis Airport?
As of July 2025, there are 4 operators available to choose from for flights from Toronto to Lambert-St Louis Airport.
How old do you have to be to fly from Toronto to Lambert-St Louis Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Toronto 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 to St. Louis?
Based on momondo bookings for flights between Toronto and St. Louis, the leading plane model is Canadair (Bombardier) Regional Jet 900, making up 56.48% of the total bookings. Other popular models include Airbus A220-300 with 36.21%, Airbus A319 with 1.99%, and Airbus A320-100/200 with 1.99%.
What is the most popular airline from Toronto to St. Louis?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Toronto to St. Louis is Air Canada (79% of total bookings). The next most popular airlines are United Airlines (14%) and WestJet (7%).

Best airlines flying from Toronto to St. Louis

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

Airline	Rating	Free Cancellation	Price
Air Canada	PriceFrom C$ 471	Free Cancellation	Rating 7.1 9,851 reviews	Search Air Canada flights
Delta	PriceFrom C$ 474	Free Cancellation	Rating 8.0 7,981 reviews	Search Delta flights
United Airlines	PriceFrom C$ 478	Free Cancellation	Rating 7.4 8,900 reviews	Search United Airlines flights
WestJet	PriceFrom C$ 557	Free Cancellation	Rating 7.2 2,978 reviews	Search WestJet flights

United Airlines Flights From Toronto to St. Louis
Across 9 United Airlines flights from Toronto to St. Louis this week, the average price was C$ 489, with the best United Airlines deals starting from C$ 347 round-trip. 8,900 users have rated United Airlines on momondo, with an average score of 7.4/10.
Air Canada Flights From Toronto to St. Louis
Another popular option for Toronto to St. Louis flights is Air Canada (7.1/10, 9,851 ratings). Air Canada flies from Toronto to St. Louis around 9 times per week, with deals starting from C$ 341 round-trip and rising to an average price of around C$ 491.

Edwardsville

Chesterfield

Collinsville

Litchfield

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 allows you to filter the results for Toronto to St. Louis flights to just show those with flexible booking policies.

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

Once you have performed a search for Toronto to St. Louis flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Price alerts on flights to St. Louis from Toronto are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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.

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Cheap flights from Toronto to St. Louis from C$ 240

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Toronto to St. Louis departing on 25/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names, great deals

Big names, great deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Toronto to St. Louis

Cheap round-trip flights

Cheap one-way flights

Cheap last-minute flights

Cheap direct flights

Air Canada flights from Toronto to St. Louis

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

American Airlines flights from Toronto to St. Louis

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

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

See travel insights to St. Louis from

How to get the cheapest flight ticket from Toronto 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

What is the typical price of a round-trip flight between Toronto 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, with most prices found around C$ 513. If you don’t want to visit St. Louis in June, then you should wait until November to fly from Toronto, when ticket prices are also cheap, with an average price of C$ 640.

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$ 601. The most expensive day to fly to St. Louis is Sunday, with ticket prices averaging around C$ 770.

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

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

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

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

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

There are 1 cabin classes available to choose from on Toronto 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 to St. Louis flights?

You could potentially save up to 9% on your flight if you consider stops on a Toronto to St. Louis flight.

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

As of July 2025, prices for Toronto to St. Louis flights are approximately 6% more expensive when compared to flights at the same time last year.

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

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

Which airlines fly to St. Louis?

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

As of July 2025, 2 flights take off from Toronto and land in St. Louis each day. The most common flight departure time for this route is 2:00p.m., with 53% of daily flights taking off in the afternoon.

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

As of July 2025, there are 18 flights per week flying from Toronto to St. Louis. The most common day of the week flights depart is Wed, with 22% of flights taking off on this day.

When to book flights from Toronto to St. Louis

Cheap Toronto to St. Louis (YTO to STL) flight deals and tips

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

Best price found

Fastest flight time

Direct flights

Airports in St. Louis

How far is Toronto to Lambert-St Louis by plane?

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

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

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

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

What is the most popular plane model from Toronto to St. Louis?

What is the most popular airline from Toronto to St. Louis?

Best airlines flying from Toronto to St. Louis

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

United Airlines Flights From Toronto to St. Louis

Air Canada Flights From Toronto to St. Louis

Travelling to a place near St. Louis?

Why use momondo?

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

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

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

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

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