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

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

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 75% of people opting to fly with this airline when travelling to St. Louis. Keep in mind that there are 3 different airlines that fly to St. Louis on a routine basis, so you have a few additional options to choose from.

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

American Airlines is the most popular carrier operating from Toronto to Lambert-St Louis

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

As of July 2026, there are 22 flights per week flying from Toronto to St. Louis. The most common day of the week flights depart is Wed, with 18% of flights taking off on this day.

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

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

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

Flights via Chicago (ORD) offer the lowest average round-trip price of C$ 751.

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

Chicago (ORD) was the most common stop: 75% of momondo users choosing one-stop flights on this route connected there.

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

As of July 2026, 3 flights take off from Toronto and land in St. Louis each day. The most common flight departure time for this route is 12:00p.m., with 50% of daily flights taking off in the afternoon.

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 2026, there are 3 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$ 261 Cheap Flights from Toronto to St. Louis in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Toronto to St. Louis

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:29 a.m. - 4:43 p.m.

YYZ

STL

10h 14m

1 stop

5:00 a.m. - 2:33 p.m.

STL

YYZ

8h 33m

1 stop

C$ 439American Airlines

Sat, 17 Oct - Mon, 26 Oct

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

YYZ

STL

10h 14m

1 stop

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

STL

YYZ

10h 14m

1 stop

C$ 455American Airlines

Mon, 14 Sep - Mon, 21 Sep

6:30 a.m. - 4:48 p.m.

YYZ

STL

11h 18m

1 stop

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

STL

YYZ

10h 14m

1 stop

C$ 455American Airlines

Mon, 14 Sep - Mon, 21 Sep

9:50 a.m. - 4:34 p.m.

YYZ

STL

7h 44m

1 stop

2:29 p.m. - 4:55 p.m.

STL

YYZ

25h 26m

2 stops

C$ 560Multiple Airlines

Mon, 21 Sep - Mon, 28 Sep

6:30 a.m. - 9:40 a.m.

YYZ

STL

28h 10m

2 stops

8:34 p.m. - 2:05 p.m.

STL

YYZ

16h 31m

1 stop

C$ 572Multiple Airlines

Sat, 17 Oct - Mon, 26 Oct

9:50 a.m. - 4:34 p.m.

YYZ

STL

7h 44m

1 stop

2:29 p.m. - 4:45 p.m.

STL

YYZ

25h 16m

2 stops

C$ 577Multiple Airlines

Mon, 14 Sep - Mon, 21 Sep

7:15 p.m. - 8:24 p.m.

YYZ

STL

2h 09mdirect

8:55 a.m. - 11:56 a.m.

STL

YYZ

2h 01mdirect

C$ 665Air Canada

Mon, 24 Aug - Mon, 31 Aug

7:15 p.m. - 8:24 p.m.

YYZ

STL

2h 09mdirect

2:40 p.m. - 5:37 p.m.

STL

YYZ

1h 57mdirect

C$ 665Air Canada

Tue, 25 Aug - Sun, 30 Aug

8:50 a.m. - 3:38 p.m.

YYZ

STL

7h 48m

1 stop

7:56 a.m. - 5:01 p.m.

STL

YYZ

8h 05m

1 stop

C$ 666United Airlines

Tue, 15 Sep - Wed, 16 Sep

8:50 a.m. - 3:38 p.m.

YYZ

STL

7h 48m

1 stop

8:30 a.m. - 8:26 p.m.

STL

YYZ

10h 56m

2 stops

C$ 666United Airlines

Wed, 9 Sep - Sat, 19 Sep

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Air Canada flights from Toronto to St. Louis

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

Air Canada

27 Aug

YYZ12:55 p.m.Toronto Pearson Intl

2h 07m

STL2:02 p.m.Lambert-St Louis

3 Sep

STL8:55 a.m.Lambert-St Louis

1h 57m

YYZ11:52 a.m.Toronto Pearson Intl

C$ 665

Air Canada

27 Aug

YYZ2:00 p.m.Toronto Pearson Intl

5h 42m

1 stop

STL6:42 p.m.Lambert-St Louis

3 Sep

STL8:55 a.m.Lambert-St Louis

1h 57m

YYZ11:52 a.m.Toronto Pearson Intl

C$ 671

Air Canada

25 Aug

YYZ7:15 p.m.Toronto Pearson Intl

2h 09m

STL8:24 p.m.Lambert-St Louis

30 Aug

STL2:40 p.m.Lambert-St Louis

1h 57m

YYZ5:37 p.m.Toronto Pearson Intl

C$ 672

American Airlines flights from Toronto to St. Louis

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

American Airlines

17 Oct

YYZ7:29 a.m.Toronto Pearson Intl

10h 14m

1 stop

STL4:43 p.m.Lambert-St Louis

26 Oct

STL5:00 a.m.Lambert-St Louis

8h 33m

1 stop

YYZ2:33 p.m.Toronto Pearson Intl

C$ 439

American Airlines

14 Sep

YYZ3:13 p.m.Toronto Pearson Intl

10h 14m

1 stop

STL12:27 a.m.Lambert-St Louis

21 Sep

STL7:21 a.m.Lambert-St Louis

10h 14m

1 stop

YYZ6:35 p.m.Toronto Pearson Intl

C$ 455

American Airlines

8 Sep

YYZ1:15 p.m.Toronto Pearson Intl

11h 59m

1 stop

STL12:14 a.m.Lambert-St Louis

11 Sep

STL5:00 a.m.Lambert-St Louis

8h 32m

1 stop

YYZ2:32 p.m.Toronto Pearson Intl

C$ 462

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Sat 17/10

7:29 a.m.-4:43 p.m.

1 stop10h 14m

Lambert-St Louis

Mon 26/10

5:00 a.m.-2:33 p.m.

1 stop8h 33m

C$ 439

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Mon 14/9

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

1 stop10h 14m

Lambert-St Louis

Mon 21/9

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

1 stop10h 14m

C$ 455

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Mon 14/9

6:30 a.m.-4:48 p.m.

1 stop11h 18m

Lambert-St Louis

Mon 21/9

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

1 stop10h 14m

C$ 455

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Mon 21/9

9:50 a.m.-4:34 p.m.

1 stop7h 44m

Lambert-St Louis

Mon 28/9

2:29 p.m.-4:55 p.m.

2 stops25h 26m

C$ 560

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Sat 17/10

6:30 a.m.-9:40 a.m.

2 stops28h 10m

Lambert-St Louis

Mon 26/10

8:34 p.m.-2:05 p.m.

1 stop16h 31m

C$ 572

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Mon 14/9

9:50 a.m.-4:34 p.m.

1 stop7h 44m

Lambert-St Louis

Mon 21/9

2:29 p.m.-4:45 p.m.

2 stops25h 16m

C$ 577

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Mon 24/8

7:15 p.m.-8:24 p.m.

Nonstop2h 09m

Lambert-St Louis

Mon 31/8

8:55 a.m.-11:56 a.m.

Nonstop2h 01m

C$ 665

Quickest round-trip

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Tue 25/8

7:15 p.m.-8:24 p.m.

Nonstop2h 09m

Lambert-St Louis

Sun 30/8

2:40 p.m.-5:37 p.m.

Nonstop1h 57m

C$ 665

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Tue 15/9

8:50 a.m.-3:38 p.m.

1 stop7h 48m

Lambert-St Louis

Wed 16/9

7:56 a.m.-5:01 p.m.

1 stop8h 05m

C$ 666

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Wed 9/9

8:50 a.m.-3:38 p.m.

1 stop7h 48m

Lambert-St Louis

Sat 19/9

8:30 a.m.-8:26 p.m.

2 stops10h 56m

C$ 666

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

Layovers

Other information

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$ 592 to C$ 732.
The lowest price recently found on this route was C$ 439.

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, with most prices found around C$ 588. If you don’t want to visit St. Louis in January, then you should wait until February to fly from Toronto, when ticket prices are also cheap, with an average price of C$ 592.

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$ 827.

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$ 638. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are C$ 881 on average. Flights to St. Louis from Toronto in the afternoon 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 from Toronto 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$ 714 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$ 504 on momondo.

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

There are 3 cabin classes available to choose from on Toronto 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 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 July 2026, prices for Toronto to St. Louis flights are approximately 21% 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$ 646
Fastest flight time	2h 05m
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$ 646

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

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

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

Search flight deals

Frequently asked questions about flying from Toronto to St. Louis

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 05m.
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 2026, there are 3 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 60.67% of the total bookings. Other popular models include Airbus A220-300 with 22.67%, Embraer 175 with 13.33%, and Boeing 737 MAX 8 with 1.33%.
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 (100% of total bookings).

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
United Airlines	PriceFrom C$ 343	Free Cancellation	Rating 7.4 10,048 reviews	Search United Airlines flights
American Airlines	PriceFrom C$ 371	Free Cancellation	Rating 7.1 11,839 reviews	Search American Airlines flights
Air Canada	PriceFrom C$ 447	Free Cancellation	Rating 7.1 11,406 reviews	Search Air Canada flights

United Airlines Flights From Toronto to St. Louis
Across 11 United Airlines flights from Toronto to St. Louis this week, the average price was C$ 586, with the best United Airlines deals starting from C$ 343 round-trip. 10,048 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, 11,406 ratings). Air Canada flies from Toronto to St. Louis around 11 times per week, with deals starting from C$ 447 round-trip and rising to an average price of around C$ 651.

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

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Cheap flights from Toronto to St. Louis from C$ 261

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 16/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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

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?

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 to Lambert-St Louis flight route?

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

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

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

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

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

Which airlines fly to St. Louis?

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

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

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

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

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

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

When to book flights from Toronto to St. Louis

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

Best price found

Fastest flight time

Direct flights

Airports in St. Louis

Frequently asked questions about flying 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

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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