Toronto

$182+ Cheap flights from St. Louis (STL) to Toronto (YTO)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/6. Fares are subject to change and may not be available on all flights or dates of travel.
STL — YTO
Dec 27 — Jan 31
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The best prices from Lambert-St Louis to Toronto are usually found in March or April, booked 85 days in advance, depart on a Thursday or Tuesday and return on a Thursday

Cheap flight deals from St. Louis to Toronto

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Toronto (YTO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 22, 2024.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$353
(Mytrip)

One-way from

$182
(Kiwi.com)

Popular in

February

Cheapest in

March

Average price

$379
Provider with most accurate pricing for Lambert-St Louis-Toronto (YTO) flight deals.
Provider most trusted by Cheapflights users for Lambert-St Louis-Toronto (YTO) flights.
From Lambert-St Louis to Toronto (YTO)
One-way flight from Lambert-St Louis to Toronto (YTO)
High demand for flights, 5% potential price rise
Best time to find cheap flights, 8% potential price drop
Average for round-trip flights in December 2024

Find flight deals from St. Louis to Toronto

Cheapest flights from St. Louis to Toronto
Explore the most affordable flight options available from St. Louis to Toronto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 22, 2024.

This Kiwi.com deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/213:53 pmSTL - YYZ
1 stop26h 37mMultiple Airlines
Wed 1/12:55 pmYYZ - STL
1 stop25h 26mMultiple Airlines
Deal found 12/21$573
This American Airlines deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/257:30 amSTL - YYZ
2 stops10h 30mAmerican Airlines
Fri 12/271:49 pmYYZ - STL
1 stop10h 11mAmerican Airlines
Deal found 12/21$918
This United Airlines deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/298:00 amSTL - YYZ
1 stop6h 45mUnited Airlines
Wed 1/11:50 pmYYZ - STL
Nonstop2h 16mUnited Airlines
Deal found 12/21$992
This Delta deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/237:15 amSTL - YYZ
2 stops8h 57mDelta
Thu 1/25:15 pmYYZ - STL
1 stop5h 20mDelta
Deal found 12/21$1,067
This WestJet deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2911:46 amSTL - YYZ
2 stops17h 33mWestJet
Wed 1/16:30 amYYZ - STL
1 stop16h 36mWestJet
Deal found 12/21$1,086
This Air Canada deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/233:50 pmSTL - YYZ
Nonstop1h 55mAir Canada
Thu 1/21:50 pmYYZ - STL
Nonstop2h 16mAir Canada
Deal found 12/21$1,272
This Alaska Airlines deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2311:36 amSTL - YYZ
2 stops26h 31mAlaska Airlines
Thu 1/26:10 amYYZ - STL
2 stops18h 49mAlaska Airlines
Deal found 12/21$1,809

Find flights from St. Louis to Toronto within your budget

Customize your flight search to find flights from St. Louis to Toronto that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 22, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Wed 1/15

12:15 pm-11:53 pm

3 stops34h 38m

Toronto Pearson Intl

Tue 1/21

7:05 am-2:43 pm

1 stop8h 38m

$353

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Wed 1/8

6:05 am-4:11 pm

1 stop9h 06m

Toronto Pearson Intl

Wed 1/22

5:05 pm-8:58 am

1 stop16h 53m

$463

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Wed 1/8

12:00 pm-9:20 pm

1 stop8h 20m

Toronto Pearson Intl

Sat 1/11

6:15 am-2:07 pm

1 stop8h 52m

$516

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Thu 3/6

7:00 am-2:55 pm

1 stop30h 55m

Toronto Pearson Intl

Sun 3/16

4:10 pm-11:59 pm

1 stop32h 49m

$535

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Wed 1/8

6:30 am-10:15 pm

2 stops14h 45m

Toronto Pearson Intl

Sat 1/11

6:52 am-3:38 pm

1 stop9h 46m

$595

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Wed 1/8

3:50 pm-6:45 pm

Nonstop1h 55m

Toronto Pearson Intl

Wed 1/22

1:50 pm-3:06 pm

Nonstop2h 16m

$664

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Thu 2/20

5:50 pm-10:49 pm

1 stop3h 59m

Toronto Pearson Intl

Sun 2/23

6:15 am-6:01 pm

1 stop12h 46m

$744

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Mon 1/6

6:49 pm-1:55 pm

2 stops18h 06m

$182

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Wed 1/1

3:50 pm-6:45 pm

Nonstop1h 55m

$381

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Wed 1/1

6:30 am-3:09 pm

2 stops7h 39m

$396

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/21

Compare providers for flights from St. Louis to Toronto

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Toronto in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
Trip.comPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on St. Louis-Toronto flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Toronto flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Toronto flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on St. Louis-Toronto flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Toronto flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from St. Louis to Toronto

Have a flexible travel schedule? Discover the best time to fly to Toronto from St. Louis with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from St. Louis to Toronto

Get recent, data-driven insights about flights from St. Louis to Toronto including ideal travel times, pricing trends, and more.

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

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Toronto. Price data was last updated on December 20, 2024.

Booking 78 days in advance of your planned departure date is, on average, the best time to get cheap flights from St. Louis to Toronto. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from St. Louis to Toronto?

Currently, January is the cheapest month in which you can book a flight from St. Louis to Toronto (average of $243). Flying from St. Louis to Toronto in July is currently the most expensive (average of $359). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from STL to YTO?

Find hourly flight availability from St. Louis to Toronto. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 22, 2024.

It’s typically best to fly out from St. Louis to Toronto at noon. Doing so could potentially save you 53% on the flight price compared to flying in the morning, which is usually more expensive.

Weekly flight availability from St. Louis to Toronto

Explore weekly flight availability from St. Louis to Toronto. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated December 22, 2024.

The most flights from STL to YTO are scheduled on a Friday (2 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (1 on average).

Rainfall in Toronto by month

Plan your trip to Toronto by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Toronto ranges from 2.0 - 3.3 inches per month. June is typically the wettest month, when rainfall can reach 3.3 in. February is typically the driest time to visit Toronto when rainfall is around 2.0 in.

Temperature in Toronto by month

Plan your trip to Toronto by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Toronto, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 21.2 F).

Reviews of airlines servicing Toronto

Get insights into the airlines that provide service to Toronto. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Toronto. Reviews last updated December 22, 2024.
Read reviews from past customers who have flown Delta, United Airlines and Air Canada from St. Louis to Toronto. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very good
9,537 reviews

Entertainment

7.1

Food

7.2

Crew

8.5

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 10

Things were good, crew was good. It was just the flight itself was very rough. Lots of turbulence, probably one of the shakiest flights I've been on. Kids throwing up, kids crying everywhere because of it.

8.0
Very good
9,537 reviews
8.0
Very good
9,537 reviews

Entertainment

7.1

Food

7.2

Crew

8.5

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 10

Things were good, crew was good. It was just the flight itself was very rough. Lots of turbulence, probably one of the shakiest flights I've been on. Kids throwing up, kids crying everywhere because of it.

8.0
Very good
8,594 reviews
8.0
Very good
9,537 reviews

Entertainment

7.1

Food

7.2

Crew

8.5

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 10

Things were good, crew was good. It was just the flight itself was very rough. Lots of turbulence, probably one of the shakiest flights I've been on. Kids throwing up, kids crying everywhere because of it.

7.4
Good
9,028 reviews
8.0
Very good
9,537 reviews

Entertainment

7.1

Food

7.2

Crew

8.5

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 10

Things were good, crew was good. It was just the flight itself was very rough. Lots of turbulence, probably one of the shakiest flights I've been on. Kids throwing up, kids crying everywhere because of it.

7.3
Good
2,812 reviews
8.0
Very good
9,537 reviews

Entertainment

7.1

Food

7.2

Crew

8.5

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 10

Things were good, crew was good. It was just the flight itself was very rough. Lots of turbulence, probably one of the shakiest flights I've been on. Kids throwing up, kids crying everywhere because of it.

7.2
Good
10,000 reviews
8.0
Very good
9,537 reviews

Entertainment

7.1

Food

7.2

Crew

8.5

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 10

Things were good, crew was good. It was just the flight itself was very rough. Lots of turbulence, probably one of the shakiest flights I've been on. Kids throwing up, kids crying everywhere because of it.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Toronto. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly from for flights from St. Louis to Toronto?

    Lambert-St Louis (STL) is the airport you will fly out of if you book a flight from St. Louis to Toronto. You should not have trouble finding flights to Toronto from Lambert-St Louis; the airport handles an average of 1 outbound flight to Toronto per day. You should also have plenty of airline options to choose from since 3 airlines have flights from the St. Louis airport to Toronto. It is only a 12.7 mi journey to Lambert-St Louis (STL) from St. Louis’s city center.

  • What are the cheapest airlines flying from St. Louis to Toronto round-trip?

    Our cheapest airline available from St. Louis to Toronto is Delta. Our recent data shows that you can find tickets from as low as $463 on this airline. Additional options worth looking into are American Airlines and Alaska Airlines, starting at $516 and $535 round-trip.

  • What are the most reliable airlines from St. Louis to Toronto?

    Consider Air Canada (90%), Jazz (90%) or United Airlines (90%) when booking your flight. These represent the most reliable airlines when flying from St. Louis to Toronto.

  • What are the cheapest flights from St. Louis to Toronto?

    The cheapest flight price from St. Louis to Toronto is $223. On average you can expect to pay $1,292. The most popular route, (Lambert-St Louis - Toronto Pearson Intl), can usually be booked for $331.

  • Can I find deals for flights from St. Louis to Toronto that include hotel bookings?

    Yes. In addition to deals on St. Louis to Toronto flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Toronto?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Toronto.

  • Can I find deals for business class flights from St. Louis to Toronto?

    Yes. Cheapflights offers flight deals from St. Louis to Toronto by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from St. Louis to Toronto?

    Currently, January is the cheapest month in which you can book a flight from St. Louis to Toronto (average of $243). Flying from St. Louis to Toronto in July is currently the most expensive (average of $359). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top 3 airlines flying from St. Louis to Toronto

Discover the top 3 airlines that operate flights from St. Louis to Toronto. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 22, 2024.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$202Average$478FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$226Average$562FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$304Average$578FlexibilityNo cancel feeOn-time71%
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