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C$ 274+ Direct flights from St. Louis

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 2/11. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
STL — YYZ
17 Oct — 24 Oct1
1 adult
1 adult, Economy

Non-stop flights from St. Louis

Cheapest flights from St. Louis
Explore the most affordable flight options available from St. Louis. Find the lowest fares based on data from user searches, with prices last updated on 17 September 2025.

Thu 30/104:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Thu 6/112:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Deal found 15/9C$ 564
Thu 30/104:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Sun 2/112:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Deal found 16/9C$ 574
Sat 1/114:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Sat 8/112:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Deal found 17/9C$ 579
Tue 7/104:05 p.m.STL - YYZ
Nonstop1h 55mAir Canada
Fri 10/102:15 p.m.YYZ - STL
Nonstop2h 03mAir Canada
Deal found 16/9C$ 662
Mon 29/99:15 a.m.STL - YYZ
Nonstop1h 56mAir Canada
Thu 2/102:15 p.m.YYZ - STL
Nonstop2h 03mAir Canada
Deal found 15/9C$ 700
Sun 5/109:15 a.m.STL - YYZ
Nonstop1h 56mAir Canada
Wed 15/102:15 p.m.YYZ - STL
Nonstop2h 03mAir Canada
Deal found 16/9C$ 715
Thu 11/124:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Fri 19/122:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Deal found 14/9C$ 770
Sun 12/104:05 p.m.STL - YYZ
Nonstop1h 55mAir Canada
Mon 13/102:15 p.m.YYZ - STL
Nonstop2h 03mAir Canada
Deal found 16/9C$ 813
Mon 13/109:15 a.m.STL - YYZ
Nonstop1h 56mUnited Airlines
Wed 15/102:15 p.m.YYZ - STL
Nonstop2h 03mUnited Airlines
Deal found 17/9C$ 818
Sat 14/24:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Sat 21/22:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Deal found 14/9C$ 839
Sat 4/101:30 p.m.STL - YUL
Nonstop2h 30mUnited Airlines
Sun 5/106:10 p.m.YUL - STL
Nonstop2h 47mUnited Airlines
Deal found 17/9C$ 1,438
Wed 1/101:30 p.m.STL - YUL
Nonstop2h 30mAir Canada
Fri 10/106:10 p.m.YUL - STL
Nonstop2h 47mAir Canada
Deal found 15/9C$ 1,633

Find direct flights from St. Louis within your budget

 
Use the slider to find direct flights from St. Louis within your budget. Price data is based on user searches made on Cheapflights. Over the past seven days, Cheapflights users made 629,999 searches. This data was last updated on 17 September 2025.

Fly to

Pearson Intl

Route

Depart

Return

Price

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Mon 17/11

4:05 p.m.-7:06 p.m.

Nonstop2h 01m

Toronto Pearson Intl

Thu 20/11

2:00 p.m.-3:29 p.m.

Nonstop2h 29m

C$ 662

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Tue 7/10

4:05 p.m.-7:00 p.m.

Nonstop1h 55m

Toronto Pearson Intl

Fri 10/10

2:15 p.m.-3:18 p.m.

Nonstop2h 03m

C$ 662

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Thu 13/11

4:05 p.m.-7:06 p.m.

Nonstop2h 01m

Toronto Pearson Intl

Sun 16/11

2:00 p.m.-3:29 p.m.

Nonstop2h 29m

C$ 662

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Sun 16/11

4:05 p.m.-7:06 p.m.

Nonstop2h 01m

Toronto Pearson Intl

Wed 19/11

2:00 p.m.-3:29 p.m.

Nonstop2h 29m

C$ 662

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Sat 1/11

4:05 p.m.-7:06 p.m.

Nonstop2h 01m

Toronto Pearson Intl

Fri 7/11

2:00 p.m.-3:29 p.m.

Nonstop2h 29m

C$ 662

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Thu 23/10

4:05 p.m.-7:00 p.m.

Nonstop1h 55m

Toronto Pearson Intl

Sat 25/10

2:15 p.m.-3:18 p.m.

Nonstop2h 03m

C$ 715

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Sun 5/10

9:15 a.m.-12:11 p.m.

Nonstop1h 56m

Toronto Pearson Intl

Wed 15/10

2:15 p.m.-3:18 p.m.

Nonstop2h 03m

C$ 715

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Thu 30/10

4:05 p.m.-7:06 p.m.

Nonstop2h 01m

Toronto Pearson Intl

Sun 2/11

2:00 p.m.-3:29 p.m.

Nonstop2h 29m

C$ 715

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Fri 17/10

4:05 p.m.-7:00 p.m.

Nonstop1h 55m

Toronto Pearson Intl

Thu 30/10

2:00 p.m.-3:29 p.m.

Nonstop2h 29m

C$ 715

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Thu 11/12

4:05 p.m.-7:06 p.m.

Nonstop2h 01m

Toronto Pearson Intl

Fri 19/12

2:00 p.m.-3:29 p.m.

Nonstop2h 29m

C$ 784

Flights are sorted by cheapest round-trip flights first.

Deals found on 16/9

Showing 1-10 of 31 results
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Best time to book a flight from St. Louis

Have a flexible travel schedule? Discover the best time to fly 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.

Reviews of airlines flying non-stop to St. Louis

Get insights into the airlines that provide direct flights from 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 from St. Louis. Reviews last updated Cheapflights.
Read through reviews of airlines serving St. Louis, such as Air Canada. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Canada
7.1
Good
10,000 reviews
Check prices

Comfort

7.1

Boarding

7.3

Food

6.3

Crew

7.8

Entertainment

6.8

Overall

7.1

Reviews

1 / 20
10.0
Excellent

janet,Sep 2025

YOW - YYZ

Really appreciated the leg room despite purchasing an economy ticket. Appreciated the extra complimentary wine. Nice touch. Was given immediate support without asking at check in, at the machine!! Ottawa's boarding was very organized with distinct rows in waiting room. Allowed for the main hall to not be blocked by people waiting to board.
Air Canada
7.1
Good
10,000 reviews
Air Canada
7.1
Good
10,000 reviews
Check prices

Comfort

7.1

Boarding

7.3

Food

6.3

Crew

7.8

Entertainment

6.8

Overall

7.1

Reviews

1 / 20
10.0
Excellent

janet,Sep 2025

YOW - YYZ

Really appreciated the leg room despite purchasing an economy ticket. Appreciated the extra complimentary wine. Nice touch. Was given immediate support without asking at check in, at the machine!! Ottawa's boarding was very organized with distinct rows in waiting room. Allowed for the main hall to not be blocked by people waiting to board.

Related info for your journey

Access useful and relevant information related to your journey from St. Louis. This can include details such as airport transportation, visa requirements, travel insurance, luggage regulations, and any other information that can ensure a smooth and hassle-free travel experience. Please note that the information is based on general guidance and may need to be verified with official sources. Data last updated 17 September 2025.

  • Where can you fly direct from St. Louis?

    Currently, the most popular direct flight destination from St. Louis is Toronto Pearson Intl Airport.

  • How much are direct flights from St. Louis?

    On average, a one-way direct flight from St. Louis will cost users approximately C$ 1,052. If you're looking for a direct round-trip flight from St. Louis, you can expect to pay around C$ 687.

  • How long is a direct flight from St. Louis?

    While the flight duration depends heavily on the destination, on average, travelers can expect non-stop flights from St. Louis to last approximately 1h 55m on average. The quickest direct flight from St. Louis at this time departs from St. Louis (1h 55m), while the longest leaves from St. Louis (1h 55m).

  • What is the best time of year to fly direct from St. Louis?

    If you're seeking the lowest price on a direct flight from St. Louis, January is worth consideration as prices are at their lowest, on average. In terms of the number of daily non-stop flights, February offers travelers the most options.

See more FAQs

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