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 72% 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 to St. Louis?

Chicago (ORD) has the shortest average layover time for this route: 0h 53m.

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$ 481.

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

Flights connecting via Chicago (ORD) have the shortest average one-way travel time: 4h 09m.

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

Chicago (ORD) was the most common stop: 80% of momondo users choosing one-stop flights on this route connected there.

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

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

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

As of April 2026, 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 100% of daily flights taking off in the afternoon.

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

As of April 2026, there are 8 flights per week flying from Toronto to St. Louis. The most common day of the week flights depart is Mon, 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 April 2026, 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$ 260 Cheap Flights from Toronto to St. Louis in 2026

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$ 746 to C$ 596. The lowest price recently found on this route was C$ 485.

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Find the cheapest flights from Toronto to St. Louis

Round-trip

One-way

Last minute

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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. - 11:40 p.m.

STL

YYZ

29h 13m

2 stops

C$ 485Multiple Airlines

Wed, 27 May - Wed, 3 Jun

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$ 492Multiple Airlines

Tue, 26 May - Mon, 1 Jun

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

YYZ

STL

26h 51m

2 stops

4:17 p.m. - 2:30 p.m.

STL

YYZ

21h 13m

1 stop

C$ 511Multiple Airlines

Thu, 18 Jun - Wed, 24 Jun

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

YYZ

STL

15h 07m

1 stop

5:27 p.m. - 11:40 p.m.

STL

YYZ

29h 13m

2 stops

C$ 513Multiple Airlines

Tue, 26 May - Wed, 3 Jun

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

YYZ

STL

15h 07m

1 stop

5:27 p.m. - 3:00 p.m.

STL

YYZ

20h 33m

2 stops

C$ 515Multiple Airlines

Tue, 26 May - Sat, 30 May

7:20 a.m. - 2:06 p.m.

YYZ

STL

7h 46m

1 stop

6:00 a.m. - 12:12 p.m.

STL

YYZ

5h 12m

1 stop

C$ 522American Airlines

Wed, 27 May - Wed, 10 Jun

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

YYZ

STL

15h 07m

1 stop

6:33 p.m. - 7:32 p.m.

STL

YYZ

47h 59m

2 stops

C$ 529Multiple Airlines

Tue, 26 May - Thu, 4 Jun

7:20 a.m. - 2:03 p.m.

YYZ

STL

7h 43m

1 stop

5:40 p.m. - 11:58 p.m.

STL

YYZ

5h 18m

1 stop

C$ 532American Airlines

Wed, 10 Jun - Fri, 12 Jun

7:20 a.m. - 2:06 p.m.

YYZ

STL

7h 46m

1 stop

9:24 a.m. - 2:59 p.m.

STL

YYZ

4h 35m

1 stop

C$ 533American Airlines

Wed, 27 May - Wed, 3 Jun

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

YYZ

STL

11h 39m

1 stop

7:00 a.m. - 5:44 p.m.

STL

YYZ

9h 44m

1 stop

C$ 536American Airlines

Wed, 27 May - Tue, 2 Jun

American Airlines flights from Toronto to St. Louis

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

American Airlines

27 May

YYZ7:20 a.m.Toronto Pearson Intl

7h 46m

1 stop

STL2:06 p.m.Lambert-St Louis

10 Jun

STL6:00 a.m.Lambert-St Louis

5h 12m

1 stop

YYZ12:12 p.m.Toronto Pearson Intl

C$ 522

American Airlines

10 Jun

YYZ7:20 a.m.Toronto Pearson Intl

7h 43m

1 stop

STL2:03 p.m.Lambert-St Louis

12 Jun

STL5:40 p.m.Lambert-St Louis

5h 18m

1 stop

YYZ11:58 p.m.Toronto Pearson Intl

C$ 532

American Airlines

27 May

YYZ7:20 a.m.Toronto Pearson Intl

7h 46m

1 stop

STL2:06 p.m.Lambert-St Louis

3 Jun

STL9:24 a.m.Lambert-St Louis

4h 35m

1 stop

YYZ2:59 p.m.Toronto Pearson Intl

C$ 533

Delta flights from Toronto to St. Louis

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

Delta

13 May

YYZ6:30 p.m.Toronto Pearson Intl

6h 29m

1 stop

STL11:59 p.m.Lambert-St Louis

17 May

STL7:05 a.m.Lambert-St Louis

9h 10m

1 stop

YYZ5:15 p.m.Toronto Pearson Intl

C$ 582

Delta

4 Jun

YYZ2:20 p.m.Toronto Pearson Intl

3h 56m

1 stop

STL5:16 p.m.Lambert-St Louis

8 Jun

STL6:10 p.m.Lambert-St Louis

3h 52m

1 stop

YYZ11:02 p.m.Toronto Pearson Intl

C$ 583

Delta

21 Jul

YYZ6:00 a.m.Toronto Pearson Intl

4h 43m

1 stop

STL9:43 a.m.Lambert-St Louis

28 Jul

STL7:08 a.m.Lambert-St Louis

9h 11m

1 stop

YYZ5:19 p.m.Toronto Pearson Intl

C$ 604

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Wed 27/5

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

1 stop15h 07m

Lambert-St Louis

Wed 3/6

5:27 p.m.-11:40 p.m.

2 stops29h 13m

C$ 485

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Tue 26/5

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

1 stop15h 07m

Lambert-St Louis

Mon 1/6

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

2 stops19h 38m

C$ 492

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Thu 18/6

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

2 stops26h 51m

Lambert-St Louis

Wed 24/6

4:17 p.m.-2:30 p.m.

1 stop21h 13m

C$ 511

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Tue 26/5

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

1 stop15h 07m

Lambert-St Louis

Wed 3/6

5:27 p.m.-11:40 p.m.

2 stops29h 13m

C$ 513

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Tue 26/5

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

1 stop15h 07m

Lambert-St Louis

Sat 30/5

5:27 p.m.-3:00 p.m.

2 stops20h 33m

C$ 515

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Wed 27/5

7:20 a.m.-2:06 p.m.

1 stop7h 46m

Lambert-St Louis

Wed 10/6

6:00 a.m.-12:12 p.m.

1 stop5h 12m

C$ 522

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Tue 26/5

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

1 stop15h 07m

Lambert-St Louis

Thu 4/6

6:33 p.m.-7:32 p.m.

2 stops47h 59m

C$ 529

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Wed 10/6

7:20 a.m.-2:03 p.m.

1 stop7h 43m

Lambert-St Louis

Fri 12/6

5:40 p.m.-11:58 p.m.

1 stop5h 18m

C$ 532

Quickest round-trip

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Wed 27/5

7:20 a.m.-2:06 p.m.

1 stop7h 46m

Lambert-St Louis

Wed 3/6

9:24 a.m.-2:59 p.m.

1 stop4h 35m

C$ 533

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

Tue 2/6

7:00 a.m.-5:44 p.m.

1 stop9h 44m

C$ 536

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?

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

The month of December is, on average, the cheapest month to fly to St. Louis from Toronto, with most prices found around C$ 229. If you don’t want to visit St. Louis in December, then you should wait until October to fly from Toronto, when ticket prices are also cheap, with an average price of C$ 239.

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$ 575. The most expensive day to fly to St. Louis is Monday, with ticket prices averaging around C$ 802.

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$ 530. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are C$ 688 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$ 668 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$ 489 on momondo.

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 April 2026, prices for Toronto to St. Louis flights are approximately 1% 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$ 746
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$ 746

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 April 2026, 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 Embraer 175, making up 55.38% of the total bookings. Other popular models include Canadair (Bombardier) Regional Jet 900 with 17.69%, Airbus A220-300 with 13.85%, and Airbus A319 with 4.62%.
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 (88% of total bookings). The next most popular airline is United Airlines (12%).

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$ 333	Free Cancellation	Rating 7.4 9,672 reviews	Search United Airlines flights
American Airlines	PriceFrom C$ 360	Free Cancellation	Rating 7.1 11,674 reviews	Search American Airlines flights
Air Canada	PriceFrom C$ 453	Free Cancellation	Rating 7.1 10,975 reviews	Search Air Canada flights
Delta	PriceFrom C$ 468	Free Cancellation	Rating 7.9 8,466 reviews	Search Delta flights
WestJet	PriceFrom C$ 550	Free Cancellation	Rating 7.2 3,327 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$ 577, with the best United Airlines deals starting from C$ 333 round-trip. 9,672 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, 10,975 ratings). Air Canada flies from Toronto to St. Louis around 4 times per week, with deals starting from C$ 453 round-trip and rising to an average price of around C$ 601.

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$ 260

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 8/6. 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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American Airlines flights from Toronto to St. Louis

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

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

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See travel insights to St. Louis from

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?

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

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

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

United Airlines Flights From Toronto to St. Louis

Air Canada Flights From Toronto 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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