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C$ 316+ 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 25/2. 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
27 Feb — 6 Mar1
1 adult
1 adult, Economy, 0 bags

Non-stop flights from St. Louis

Enter your travel dates to find the best prices.

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 28 January 2026.

Sun 8/24:05 p.m.
STL
-
YYZ
Nonstop2h 01m
Air Canada
Sat 14/22:00 p.m.
YYZ
-
STL
Nonstop2h 29m
Air Canada
Deal found 25/1C$ 703
Sat 14/24:05 p.m.
STL
-
YYZ
Nonstop2h 01m
Air Canada
Sat 21/22:00 p.m.
YYZ
-
STL
Nonstop2h 29m
Air Canada
Deal found 26/1C$ 718
Wed 18/34:05 p.m.
STL
-
YYZ
Nonstop2h 01m
Air Canada
Mon 23/32:00 p.m.
YYZ
-
STL
Nonstop2h 29m
Air Canada
Deal found 25/1C$ 755
Tue 30/61:15 p.m.
STL
-
YUL
Nonstop2h 35m
Air Canada
Fri 3/74:40 p.m.
YUL
-
STL
Nonstop2h 47m
Air Canada
Deal found 26/1C$ 778
Thu 23/44:05 p.m.
STL
-
YYZ
Nonstop1h 57m
Air Canada
Sun 26/42:10 p.m.
YYZ
-
STL
Nonstop2h 14m
Air Canada
Deal found 26/1C$ 817
Sun 3/57:30 a.m.
STL
-
YYZ
Nonstop1h 51m
Air Canada
Fri 8/56:55 p.m.
YYZ
-
STL
Nonstop2h 09m
Air Canada
Deal found 28/1C$ 832
Wed 24/61:15 p.m.
STL
-
YUL
Nonstop2h 35m
Air Canada
Sun 28/66:10 p.m.
YUL
-
STL
Nonstop2h 55m
Air Canada
Deal found 27/1C$ 898
Wed 10/67:30 a.m.
STL
-
YYZ
Nonstop1h 51m
Air Canada
Sun 14/611:00 a.m.
YYZ
-
STL
Nonstop2h 06m
Air Canada
Deal found 26/1C$ 955
Wed 17/67:30 a.m.
STL
-
YYZ
Nonstop1h 51m
Air Canada
Wed 24/611:15 a.m.
YYZ
-
STL
Nonstop2h 06m
Air Canada
Deal found 27/1C$ 970
Sat 7/34:05 p.m.
STL
-
YYZ
Nonstop2h 01m
Air Canada
Tue 17/32:00 p.m.
YYZ
-
STL
Nonstop2h 29m
Air Canada
Deal found 26/1C$ 1,020
Fri 6/34:05 p.m.
STL
-
YYZ
Nonstop2h 01m
Air Canada
Sun 8/32:00 p.m.
YYZ
-
STL
Nonstop2h 29m
Air Canada
Deal found 26/1C$ 1,242
Fri 13/34:05 p.m.
STL
-
YYZ
Nonstop2h 01m
Air Canada
Fri 20/32:00 p.m.
YYZ
-
STL
Nonstop2h 29m
Air Canada
Deal found 27/1C$ 1,245

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 28 January 2026.

Fly to

Pearson Intl

Route

Depart

Return

Price

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Sat 14/2

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

Nonstop2h 01m

Toronto Pearson Intl

Sat 21/2

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

Nonstop2h 29m

C$ 703

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Sun 1/3

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

Nonstop2h 01m

Toronto Pearson Intl

Thu 5/3

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

Nonstop2h 29m

C$ 703

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Wed 18/3

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

Nonstop2h 01m

Toronto Pearson Intl

Mon 23/3

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

Nonstop2h 29m

C$ 755

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Tue 30/6

1:15 p.m.-4:50 p.m.

Nonstop2h 35m

Montreal Pierre Elliott Trudeau Intl

Fri 3/7

4:40 p.m.-6:27 p.m.

Nonstop2h 47m

C$ 778

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Sun 3/5

2:20 p.m.-5:18 p.m.

Nonstop1h 58m

Toronto Pearson Intl

Fri 8/5

11:00 a.m.-12:06 p.m.

Nonstop2h 06m

C$ 817

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Thu 23/4

4:05 p.m.-7:02 p.m.

Nonstop1h 57m

Toronto Pearson Intl

Sun 26/4

2:10 p.m.-3:24 p.m.

Nonstop2h 14m

C$ 817

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Thu 14/5

7:30 a.m.-10:21 a.m.

Nonstop1h 51m

Toronto Pearson Intl

Mon 18/5

11:00 a.m.-12:06 p.m.

Nonstop2h 06m

C$ 832

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Thu 9/7

12:10 p.m.-3:42 p.m.

Nonstop2h 32m

Montreal Pierre Elliott Trudeau Intl

Sun 12/7

4:40 p.m.-6:27 p.m.

Nonstop2h 47m

C$ 898

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Wed 24/6

1:15 p.m.-4:50 p.m.

Nonstop2h 35m

Montreal Pierre Elliott Trudeau Intl

Sun 28/6

6:10 p.m.-8:05 p.m.

Nonstop2h 55m

C$ 898

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Sun 8/2

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

Nonstop2h 01m

Toronto Pearson Intl

Sat 14/2

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

Nonstop2h 29m

C$ 946

Flights are sorted by cheapest round-trip flights first.

Deals found on 26/1

Showing 1-10 of 23 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
10,666 reviews
Check prices

Boarding

7.3

Comfort

7.1

Entertainment

6.8

Crew

7.8

Overall

7.1

Food

6.3

Reviews

1 / 20
4.0
Okay

Sugith,Jan 2026

YSB - YYZ

Left 2 hours late. Stuck on plane for an hour after boarding before take off.
Air Canada
7.1
Good
10,666 reviews
Air Canada
7.1
Good
10,666 reviews
Check prices

Boarding

7.3

Comfort

7.1

Entertainment

6.8

Crew

7.8

Overall

7.1

Food

6.3

Reviews

1 / 20
4.0
Okay

Sugith,Jan 2026

YSB - YYZ

Left 2 hours late. Stuck on plane for an hour after boarding before take off.

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 28 January 2026.

  • Where can you fly direct from St. Louis?

    Currently, the most popular direct flight destination from St. Louis is Los Angeles.

  • 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, September is worth consideration as prices are at their lowest, on average. In terms of the number of daily non-stop flights, January offers travelers the most options.

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