Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Toronto to St. Louis from C$ 223

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 11/3. Fares are subject to change and may not be available on all flights or dates of travel.
YTO — STL
26 Jan — 2 Feb1
1 adult

The best prices from Toronto to Lambert-St Louis are usually found in February or May, booked 78 days in advance, depart on a Tuesday or Friday and return on a Wednesday

Cheap flight deals from Toronto to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Toronto (YTO) to St. Louis (STL). 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 21 January 2025.

Round-trip from

C$ 590

One-way from

C$ 223

Popular in

January

Cheapest in

February

Average price

C$ 760

Good round-trip deal

C$ 691 or less

Good one-way deal

C$ 261 or less
Delta
  • Delta
  • 28/2-5/3
  • 2 total stops
  • 35h 17m total
  • Toronto to St. Louis
Search Deals
11/3
  • 11/3
  • 2 total stops
  • 14h 16m total
  • Toronto to St. Louis
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (C$ 30 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2025
Search Deals
Price to beat on a round-trip flight from Toronto (YTO) to Lambert-St Louis.
Search Deals
Price to beat on a one-way flight from Toronto (YTO) to Lambert-St Louis.
Search Deals

Find flight deals from Toronto to St. Louis

Cheapest flights from Toronto to St. Louis
Explore the most affordable flight options available from Toronto to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 January 2025.

Fri 28/26:43 p.m.YYZ - STL
1 stop18h 44mDelta
Wed 5/36:06 a.m.STL - YYZ
1 stop16h 33mDelta
Deal found 21/1C$ 590
Sun 26/17:05 a.m.YYZ - STL
1 stop8h 38mMultiple Airlines
Mon 27/15:05 p.m.STL - YYZ
1 stop17h 40mMultiple Airlines
Deal found 20/1C$ 596
Mon 24/27:00 a.m.YYZ - STL
1 stop8h 55mAmerican Airlines
Thu 6/35:06 a.m.STL - YYZ
2 stops8h 54mAmerican Airlines
Deal found 21/1C$ 686
Mon 24/21:50 p.m.YYZ - STL
Nonstop2h 16mAir Canada
Sat 1/33:50 p.m.STL - YYZ
Nonstop1h 55mAir Canada
Deal found 21/1C$ 699
Wed 26/21:50 p.m.YYZ - STL
Nonstop2h 16mUnited Airlines
Mon 3/33:50 p.m.STL - YYZ
Nonstop1h 55mUnited Airlines
Deal found 21/1C$ 714
Fri 28/24:20 p.m.YYZ - STL
1 stop23h 05mAlaska Airlines
Sun 2/37:00 a.m.STL - YYZ
1 stop30h 55mAlaska Airlines
Deal found 21/1C$ 728
Mon 24/36:30 p.m.YYZ - STL
2 stops15h 44mWestJet
Sun 30/36:00 a.m.STL - YYZ
1 stop15h 59mWestJet
Deal found 19/1C$ 780

Find flights from Toronto to St. Louis within your budget

Customize your flight search to find flights from Toronto to St. Louis 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 21 January 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Fri 28/2

6:43 p.m.-12:27 p.m.

1 stop18h 44m

Lambert-St Louis

Wed 5/3

6:06 a.m.-11:39 p.m.

1 stop16h 33m

C$ 590

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Mon 24/2

7:00 a.m.-2:55 p.m.

1 stop8h 55m

Lambert-St Louis

Sat 1/3

9:13 a.m.-7:00 p.m.

2 stops8h 47m

C$ 686

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Sat 22/2

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

Nonstop2h 16m

Lambert-St Louis

Sun 2/3

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

Nonstop1h 55m

C$ 697

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Wed 26/2

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

Nonstop2h 16m

Lambert-St Louis

Mon 3/3

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

Nonstop1h 55m

C$ 714

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Fri 28/2

4:20 p.m.-2:25 p.m.

1 stop23h 05m

Lambert-St Louis

Sun 2/3

7:00 a.m.-2:55 p.m.

1 stop30h 55m

C$ 728

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Wed 19/2

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

Nonstop2h 16m

Lambert-St Louis

Sun 23/2

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

Nonstop1h 55m

C$ 833

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Sat 15/3

6:15 a.m.-12:00 p.m.

1 stop6h 45m

Lambert-St Louis

Sat 15/3

5:00 p.m.-1:33 p.m.

1 stop19h 33m

C$ 849

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Tue 11/3

8:00 p.m.-9:16 a.m.

2 stops14h 16m

C$ 223

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Thu 20/3

6:15 a.m.-2:49 p.m.

1 stop9h 34m

C$ 322

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Tue 11/3

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

Nonstop2h 16m

C$ 377

Flights are sorted by cheapest round-trip flights first.

Deals found on 21/1

Showing 1-10 of 11 results
1
2

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

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Toronto 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 Toronto to St. Louis

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

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

Use this chart to determine the optimal time to book a round-trip flight from Toronto to St. Louis. Price data was last updated on 17 January 2025.

Booking 78 days in advance of your planned departure date is, on average, the best time to get cheap flights from Toronto to St. Louis. 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 Toronto to St. Louis?

Currently, January is the cheapest month in which you can book a flight from Toronto to St. Louis (average of C$ 365). Flying from Toronto to St. Louis in September is currently the most expensive (average of C$ 491). 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 YTO to STL?

Find hourly flight availability from Toronto to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 21 January 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 4% on flights from Toronto to St. Louis by exploring options for tickets in the morning.

Weekly flight availability from Toronto to St. Louis

Explore weekly flight availability from Toronto to St. Louis. 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 21 January 2025.

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

Rainfall in St. Louis by month

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

In terms of precipitation, rainfall in St. Louis ranges from 56.0 - 119.0 mm per month. May is typically the wettest month, when rainfall can reach 119.0 mm. February is typically the driest time to visit St. Louis when rainfall is around 56.0 mm.

Temperature in St. Louis by month

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

If weather is an important factor for your trip to St. Louis, 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 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 0.0 C).

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated 21 January 2025.
Read reviews from past customers who have flown WestJet, United Airlines and Air Canada from Toronto to St. Louis. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,706 reviews
Check prices

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 10

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Alaska Airlines
8.0
Very good
9,706 reviews
Alaska Airlines
8.0
Very good
9,706 reviews
Check prices

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 10

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Delta
8.0
Very good
8,521 reviews
Alaska Airlines
8.0
Very good
9,706 reviews
Check prices

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 10

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

United Airlines
7.4
Good
8,984 reviews
Alaska Airlines
8.0
Very good
9,706 reviews
Check prices

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 10

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,706 reviews
Check prices

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 10

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

WestJet
7.2
Good
2,829 reviews
Alaska Airlines
8.0
Very good
9,706 reviews
Check prices

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 10

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Related info for your journey

Find useful and relevant information for your journey from Toronto to St. Louis. 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 into for flights to St. Louis from Toronto?

    If you book a flight to St. Louis from Toronto, you will be flying to Lambert-St Louis, which is the city’s only airport. Lambert-St Louis (STL) is located 20.4 km from the centre of St. Louis. There is 1 flight from Toronto to Lambert-St Louis per day from 2 different airlines.

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

    Flying on Delta is currently your cheapest option to St. Louis, with prices starting at C$ 590. Additional round-trip tickets that might be worth considering are offered by Air Canada and American Airlines, with the lowest prices starting at C$ 684 and C$ 686, respectively. Delta is currently priced 14% below the average price you’ll pay for this route.

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

    For one-way options, check prices for Delta. According to our data, you can fly for as low as C$ 322. Users have also found prices from C$ 377 and C$ 394 on Air Canada and Alaska Airlines, respectively.

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

    The top 3 most reliable airlines when flying from Toronto to St. Louis are Air Canada (79%), Jazz (79%) and United Airlines (79%).

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

    While on average a flight from Toronto to St. Louis is generally C$ 564, our data shows the cheapest flight currently is C$ 229. When looking at the most popular route, (Toronto Pearson Intl - Lambert-St Louis), you can expect to pay C$ 466 for that flight.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Toronto to St. Louis 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 Toronto to St. Louis?

    Currently, January is the cheapest month in which you can book a flight from Toronto to St. Louis (average of C$ 365). Flying from Toronto to St. Louis in September is currently the most expensive (average of C$ 491). 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

Travelling to a place near Toronto?

Book flights to Toronto if you plan to visit one of these locations
St. Peters
Chesterfield

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 2 airlines flying from Toronto to St. Louis

Discover the top 2 airlines that operate flights from Toronto to St. Louis. 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 21 January 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 519AverageC$ 712FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapestC$ 541AverageC$ 703FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

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

Cheapflights makes it easy to find Toronto to St. Louis flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Toronto to St. Louis for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Toronto to St. Louis with no change fees?

Yes, we can. To see specific flights from Toronto to St. Louis with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Toronto to St. Louis become cheaper?

Not ready to book yet? You can track prices for flights from Toronto to St. Louis on Cheapflights with our Price Alert feature and get notified when better prices are available.

100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.