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Cheap flights from St. Louis to Toronto from C$ 117

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 22/1. Fares are subject to change and may not be available on all flights or dates of travel.
STL — YTO
23 Dec — 30 Dec1
1 adult

The best prices from Lambert-St Louis to Toronto are usually found in March or April, booked 85 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

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 18 December 2024.

Round-trip from

C$ 400

One-way from

C$ 117

Popular in

February

Cheapest in

March

Average price

C$ 511
14/1-21/1
  • 14/1-21/1
  • 2 total stops
  • 26h 18m total
  • St. Louis to Toronto
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22/1
  • 22/1
  • 1 total stop
  • 19h 50m total
  • St. Louis to Toronto
Search Deals
High demand for flights, 5% potential price rise
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Best time to find cheap flights, 8% potential price drop
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Average for round-trip flights in December 2024
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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 18 December 2024.

Tue 24/123:53 p.m.STL - YYZ
1 stop18h 52mMultiple Airlines
Tue 31/127:05 a.m.YYZ - STL
1 stop9h 16mMultiple Airlines
Deal found 17/12C$ 651
Thu 26/1211:42 a.m.STL - YYZ
1 stop4h 58mAmerican Airlines
Sat 25/16:15 a.m.YYZ - STL
1 stop8h 52mAmerican Airlines
Deal found 16/12C$ 948
Thu 26/125:00 a.m.STL - YYZ
1 stop6h 31mAir Canada
Sat 25/11:50 p.m.YYZ - STL
Nonstop2h 16mAir Canada
Deal found 16/12C$ 1,033
Wed 25/126:25 a.m.STL - YYZ
1 stop8h 20mUnited Airlines
Wed 1/11:50 p.m.YYZ - STL
Nonstop2h 16mUnited Airlines
Deal found 17/12C$ 1,181
Fri 27/126:29 a.m.STL - YYZ
1 stop3h 53mDelta
Mon 30/125:15 p.m.YYZ - STL
1 stop5h 20mDelta
Deal found 17/12C$ 1,191
Wed 25/125:55 p.m.STL - YYZ
1 stop3h 46mWestJet
Fri 27/122:11 p.m.YYZ - STL
1 stop3h 48mWestJet
Deal found 17/12C$ 1,444
Tue 31/122:17 p.m.STL - YYZ
2 stops23h 50mAlaska Airlines
Thu 2/16:10 a.m.YYZ - STL
2 stops18h 49mAlaska Airlines
Deal found 16/12C$ 2,351

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 629,999 searches. Data last updated 18 December 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Tue 14/1

5:05 p.m.-11:45 a.m.

1 stop17h 40m

Toronto Pearson Intl

Tue 21/1

7:05 a.m.-2:43 p.m.

1 stop8h 38m

C$ 400

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Wed 8/1

6:05 a.m.-4:11 p.m.

1 stop9h 06m

Toronto Pearson Intl

Wed 22/1

5:05 p.m.-8:58 a.m.

1 stop16h 53m

C$ 633

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Mon 13/1

12:00 p.m.-9:20 p.m.

1 stop8h 20m

Toronto Pearson Intl

Wed 15/1

6:15 a.m.-2:07 p.m.

1 stop8h 52m

C$ 683

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Tue 7/1

2:49 p.m.-3:05 p.m.

1 stop23h 16m

Toronto Pearson Intl

Mon 13/1

4:20 p.m.-1:53 p.m.

1 stop22h 33m

C$ 708

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Tue 7/1

9:44 a.m.-7:45 p.m.

1 stop9h 01m

Toronto Pearson Intl

Wed 8/1

6:52 a.m.-2:14 p.m.

1 stop8h 22m

C$ 738

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Thu 16/1

3:50 p.m.-6:45 p.m.

Nonstop1h 55m

Toronto Pearson Intl

Sun 19/1

1:50 p.m.-3:06 p.m.

Nonstop2h 16m

C$ 786

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Wed 8/1

10:22 a.m.-11:34 p.m.

2 stops12h 12m

Toronto Pearson Intl

Fri 10/1

9:30 a.m.-11:14 p.m.

2 stops14h 44m

C$ 1,080

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Wed 22/1

5:05 p.m.-1:55 p.m.

1 stop19h 50m

C$ 117

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Wed 1/1

7:23 a.m.-9:30 p.m.

1 stop13h 07m

C$ 380

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Wed 22/1

3:50 p.m.-6:45 p.m.

Nonstop1h 55m

C$ 404

Flights are sorted by cheapest round-trip flights first.

Deals found on 17/12

Showing 1-10 of 12 results
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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 13 December 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, October is the cheapest month in which you can book a flight from St. Louis to Toronto (average of C$ 178). Flying from St. Louis to Toronto in July is currently the most expensive (average of C$ 258). 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 18 December 2024.

One of the essential ways to save on airfare from St. Louis to Toronto is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight at noon could potentially save you up to 64% on airfare.

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 18 December 2024.

The most flights from STL to YTO are scheduled on a Monday (2 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (2 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 51.0 - 83.0 mm per month. June is typically the wettest month, when rainfall can reach 83.0 mm. February is typically the driest time to visit Toronto when rainfall is around 51.0 mm.

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 21.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -6.0 C).

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 18 December 2024.
Get a feel of what it's like to fly with Delta, United Airlines and Air Canada from St. Louis to Toronto by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,552 reviews
Check prices

Crew

8.5

Food

7.2

Comfort

7.9

Entertainment

7.1

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.

Alaska Airlines
8.0
Very good
9,552 reviews
Alaska Airlines
8.0
Very good
9,552 reviews
Check prices

Crew

8.5

Food

7.2

Comfort

7.9

Entertainment

7.1

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.

Delta
8.0
Very good
8,604 reviews
Alaska Airlines
8.0
Very good
9,552 reviews
Check prices

Crew

8.5

Food

7.2

Comfort

7.9

Entertainment

7.1

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.

United Airlines
7.4
Good
9,059 reviews
Alaska Airlines
8.0
Very good
9,552 reviews
Check prices

Crew

8.5

Food

7.2

Comfort

7.9

Entertainment

7.1

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.

WestJet
7.3
Good
2,818 reviews
Alaska Airlines
8.0
Very good
9,552 reviews
Check prices

Crew

8.5

Food

7.2

Comfort

7.9

Entertainment

7.1

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.

American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,552 reviews
Check prices

Crew

8.5

Food

7.2

Comfort

7.9

Entertainment

7.1

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?

    Most people fly from Lambert-St Louis (STL) if they book a flight from St. Louis to Toronto. On average, Lambert-St Louis has 2 outbound flights to Toronto per day from 1 airline. Lambert-St Louis is conveniently located just 20.4 km from St. Louis’s city centre.

  • 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 C$ 633 on this airline. Additional options worth looking into are American Airlines and Alaska Airlines, starting at C$ 683 and C$ 708 round-trip.

  • What are the cheapest airlines to fly from St. Louis to Toronto one-way?

    For one-way options, check prices for American Airlines. According to our data, you can fly for as low as C$ 380. Users have also found prices from C$ 404 and C$ 407 on United Airlines and Air Canada, respectively.

  • 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?

    While on average a flight from St. Louis to Toronto is generally C$ 361, our data shows the cheapest flight currently is C$ 319. When looking at the most popular route, (Lambert-St Louis - Toronto Pearson Intl), you can expect to pay C$ 400 for that flight.

  • 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, October is the cheapest month in which you can book a flight from St. Louis to Toronto (average of C$ 178). Flying from St. Louis to Toronto in July is currently the most expensive (average of C$ 258). 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 airline flying from St. Louis to Toronto

Discover the top airline 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 629,999 searches. Data last updated 18 December 2024.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 368AverageC$ 797FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

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How does Cheapflights help users find flights from St. Louis to Toronto?

Deals for St. Louis to Toronto flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from St. Louis to Toronto?

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Yes! Cheapflights helps users easily find flights from St. Louis to Toronto with no change fees.

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