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

As of October 2025, 1 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 81% of daily flights taking off in the afternoon.

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

Air Canada, Delta, 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 American Airlines 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 71% 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.

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

As of October 2025, there are 8 flights per week flying from Toronto to St. Louis. The most common day of the week flights depart is Wed, with 25% 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 October 2025, there are 5 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$ 204 Cheap Flights from Toronto to St. Louis in 2025/26

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

Prices are currently low for flights on this route. Typical prices usually range from C$ 621 to C$ 810. The lowest price recently found on this route was C$ 423.

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11:30 a.m. - 6:14 p.m.YYZ-STL

7h 44m1 stop

6:43 p.m. - 10:53 a.m.STL-YYZ

15h 10m1 stop

C$ 423American Airlines

Find Deal

qua, 21 jan - sáb, 24 jan

11:36 a.m. - 8:24 p.m.YYZ-STL

9h 48m1 stop

5:05 a.m. - 4:03 p.m.STL-YYZ

9h 58m1 stop

C$ 427American Airlines

Find Deal

ter, 9 dez - qua, 10 dez

12:50 p.m. - 10:33 p.m.YYZ-STL

10h 43m1 stop

9:54 a.m. - 11:43 a.m.STL-YYZ

24h 49m1 stop

C$ 445Multiple Airlines

Find Deal

sex, 5 dez - dom, 14 dez

5:15 p.m. - 11:01 a.m.YYZ-STL

18h 46m2 stops

2:48 p.m. - 11:20 p.m.STL-YYZ

7h 32m1 stop

C$ 504Multiple Airlines

Find Deal

qua, 21 jan - sáb, 24 jan

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

2h 29mdirect

4:05 p.m. - 7:06 p.m.STL-YYZ

2h 01mdirect

C$ 507Air Canada

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sex, 21 nov - seg, 24 nov

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

2h 29mdirect

4:05 p.m. - 7:06 p.m.STL-YYZ

2h 01mdirect

C$ 519Air Canada

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sex, 13 fev - seg, 16 fev

6:05 a.m. - 9:46 a.m.YYZ-STL

4h 41m1 stop

6:40 a.m. - 11:24 a.m.STL-YYZ

3h 44m1 stop

C$ 538Delta

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ter, 25 nov - sex, 28 nov

6:05 a.m. - 9:46 a.m.YYZ-STL

4h 41m1 stop

6:40 a.m. - 11:24 a.m.STL-YYZ

3h 44m1 stop

C$ 550Delta

Find Deal

ter, 25 nov - sex, 28 nov

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

2h 29mdirect

8:05 a.m. - 6:34 p.m.STL-YYZ

9h 29m1 stop

C$ 580United Airlines

Find Deal

ter, 30 dez - qui, 1 jan

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

2h 29mdirect

6:42 p.m. - 9:58 a.m.STL-YYZ

14h 16m1 stop

C$ 584United Airlines

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sex, 5 dez - seg, 8 dez

American Airlines flights from Toronto to St. Louis

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

American Airlines

21 Jan

YYZ11:30 a.m.Toronto Pearson Intl

7h 44m

1 stop

STL6:14 p.m.Lambert-St Louis

24 Jan

STL6:43 p.m.Lambert-St Louis

15h 10m

1 stop

YYZ10:53 a.m.Toronto Pearson Intl

C$ 423

Find similar

American Airlines

9 Dec

YYZ11:36 a.m.Toronto Pearson Intl

9h 48m

1 stop

STL8:24 p.m.Lambert-St Louis

10 Dec

STL5:05 a.m.Lambert-St Louis

9h 58m

1 stop

YYZ4:03 p.m.Toronto Pearson Intl

C$ 427

Find similar

American Airlines

5 Dec

YYZ6:00 a.m.Toronto Pearson Intl

8h 14m

1 stop

STL1:14 p.m.Lambert-St Louis

8 Dec

STL5:15 a.m.Lambert-St Louis

9h 48m

1 stop

YYZ4:03 p.m.Toronto Pearson Intl

C$ 447

Find similar

Delta flights from Toronto to St. Louis

Our best Delta deals on Toronto to St. Louis flight tickets

Delta

25 Nov

YYZ6:05 a.m.Toronto Pearson Intl

4h 41m

1 stop

STL9:46 a.m.Lambert-St Louis

28 Nov

STL6:40 a.m.Lambert-St Louis

3h 44m

1 stop

YYZ11:24 a.m.Toronto Pearson Intl

C$ 538

Find similar

Delta

25 Nov

YYZ6:05 a.m.Toronto Pearson Intl

4h 41m

1 stop

STL9:46 a.m.Lambert-St Louis

28 Nov

STL6:40 a.m.Lambert-St Louis

3h 44m

1 stop

YYZ11:24 a.m.Toronto Pearson Intl

C$ 550

Find similar

Delta

23 Mar

YYZ5:10 p.m.Toronto Pearson Intl

7h 00m

1 stop

STL11:10 p.m.Lambert-St Louis

26 Mar

STL6:45 a.m.Lambert-St Louis

3h 49m

1 stop

YYZ11:34 a.m.Toronto Pearson Intl

C$ 621

Find similar

Fly from

Fly to

Route

Depart

Return

Price

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

qua 21/1

11:30 a.m.-6:14 p.m.

1 stop7h 44m

Lambert-St Louis

sáb 24/1

6:43 p.m.-10:53 a.m.

1 stop15h 10m

C$ 423

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

ter 9/12

11:36 a.m.-8:24 p.m.

1 stop9h 48m

Lambert-St Louis

qua 10/12

5:05 a.m.-4:03 p.m.

1 stop9h 58m

C$ 427

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

sex 5/12

12:50 p.m.-10:33 p.m.

1 stop10h 43m

Lambert-St Louis

dom 14/12

9:54 a.m.-11:43 a.m.

1 stop24h 49m

C$ 445

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

qua 21/1

5:15 p.m.-11:01 a.m.

2 stops18h 46m

Lambert-St Louis

sáb 24/1

2:48 p.m.-11:20 p.m.

1 stop7h 32m

C$ 504

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

sex 21/11

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

Nonstop2h 29m

Lambert-St Louis

seg 24/11

4:05 p.m.-7:06 p.m.

Nonstop2h 01m

C$ 507

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

sex 13/2

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

Nonstop2h 29m

Lambert-St Louis

seg 16/2

4:05 p.m.-7:06 p.m.

Nonstop2h 01m

C$ 519

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

ter 25/11

6:05 a.m.-9:46 a.m.

1 stop4h 41m

Lambert-St Louis

sex 28/11

6:40 a.m.-11:24 a.m.

1 stop3h 44m

C$ 538

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

ter 25/11

6:05 a.m.-9:46 a.m.

1 stop4h 41m

Lambert-St Louis

sex 28/11

6:40 a.m.-11:24 a.m.

1 stop3h 44m

C$ 550

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

ter 30/12

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

Nonstop2h 29m

Lambert-St Louis

qui 1/1

8:05 a.m.-6:34 p.m.

1 stop9h 29m

C$ 580

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

sex 5/12

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

Nonstop2h 29m

Lambert-St Louis

seg 8/12

6:42 p.m.-9:58 a.m.

1 stop14h 16m

C$ 584

Flights are sorted by cheapest round-trip flights first.

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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$ 519. If you don’t want to visit St. Louis in June, then you should wait until August to fly from Toronto, when ticket prices are also cheap, with an average price of C$ 554.

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$ 582. The most expensive day to fly to St. Louis is Monday, with ticket prices averaging around C$ 773.

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$ 547. 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$ 683 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$ 503 on momondo.

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

There is only 1 cabin class 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?

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

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

As of October 2025, prices for Toronto to St. Louis flights are approximately 10% cheaper 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$ 592
Fastest flight time	2h 29m
Direct flights	Every day
Airports in St. Louis	1 airport

The best flight deal from Toronto to St. Louis found on momondo in the last 72 hours is C$ 592

The fastest flight from Toronto to St. Louis takes 2h 29m

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 29m.
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 October 2025, there are 5 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 64.19% of the total bookings. Other popular models include Embraer 175 with 22.30%, Airbus A319 with 4.05%, and Airbus A320-100/200 with 4.05%.
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 (84% of total bookings). The next most popular airline is United Airlines (16%).

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
American Airlines	PriceFrom C$ 435	Free Cancellation	Rating 7.2 11,035 reviews	Search American Airlines flights
United Airlines	PriceFrom C$ 470	Free Cancellation	Rating 7.4 8,998 reviews	Search United Airlines flights
Air Canada	PriceFrom C$ 475	Free Cancellation	Rating 7.1 10,381 reviews	Search Air Canada flights
Delta	PriceFrom C$ 480	Free Cancellation	Rating 7.9 7,998 reviews	Search Delta flights
WestJet	PriceFrom C$ 563	Free Cancellation	Rating 7.2 3,152 reviews	Search WestJet flights

United Airlines Flights From Toronto to St. Louis
Across 4 United Airlines flights from Toronto to St. Louis this week, the average price was C$ 678, with the best United Airlines deals starting from C$ 470 round-trip. 8,998 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, 10,376 ratings). Air Canada flies from Toronto to St. Louis around 4 times per week, with deals starting from C$ 475 round-trip and rising to an average price of around C$ 671.

Chesterfield

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$ 204

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 26/2. 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

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Find the cheapest flights from Toronto to St. Louis

Cheap round-trip flights

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Cheap last-minute flights

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American Airlines flights from Toronto to St. Louis

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

Delta flights from Toronto to St. Louis

Our best Delta 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$ 519. If you don’t want to visit St. Louis in June, then you should wait until August to fly from Toronto, when ticket prices are also cheap, with an average price of C$ 554.

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$ 582. The most expensive day to fly to St. Louis is Monday, with ticket prices averaging around C$ 773.

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 is only 1 cabin class 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?

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

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

As of October 2025, prices for Toronto to St. Louis flights are approximately 10% cheaper when compared to flights at the same time last year.

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

Air Canada, Delta, 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 October 2025, 1 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 81% of daily flights taking off in the afternoon.

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

As of October 2025, there are 8 flights per week flying from Toronto to St. Louis. The most common day of the week flights depart is Wed, with 25% 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