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C$ 313+ 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 18/3. 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
23 Mar — 30 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 21 February 2026.

Thu 19/34:05 p.m.
STL
-
YYZ
Nonstop2h 01m
Air Canada
Mon 23/32:00 p.m.
YYZ
-
STL
Nonstop2h 29m
Air Canada
Deal found 17/2C$ 645
Mon 23/34:05 p.m.
STL
-
YYZ
Nonstop2h 01m
Air Canada
Sat 28/32:00 p.m.
YYZ
-
STL
Nonstop2h 29m
Air Canada
Deal found 19/2C$ 734
Wed 4/34:05 p.m.
STL
-
YYZ
Nonstop2h 01m
Air Canada
Sat 7/32:00 p.m.
YYZ
-
STL
Nonstop2h 29m
Air Canada
Deal found 18/2C$ 735
Mon 20/44:05 p.m.
STL
-
YYZ
Nonstop1h 57m
Air Canada
Fri 24/42:10 p.m.
YYZ
-
STL
Nonstop2h 14m
Air Canada
Deal found 18/2C$ 749
Sat 1/88:55 a.m.
STL
-
YYZ
Nonstop1h 57m
Air Canada
Sat 8/812:55 p.m.
YYZ
-
STL
Nonstop2h 07m
Air Canada
Deal found 20/2C$ 754
Fri 31/72:40 p.m.
STL
-
YYZ
Nonstop1h 57m
Air Canada
Thu 6/812:55 p.m.
YYZ
-
STL
Nonstop2h 07m
Air Canada
Deal found 17/2C$ 777
Thu 30/44:05 p.m.
STL
-
YYZ
Nonstop1h 57m
Air Canada
Sun 3/56:55 p.m.
YYZ
-
STL
Nonstop2h 09m
Air Canada
Deal found 17/2C$ 783
Sun 12/72:40 p.m.
STL
-
YYZ
Nonstop1h 57m
Air Canada
Thu 16/712:55 p.m.
YYZ
-
STL
Nonstop2h 07m
Air Canada
Deal found 19/2C$ 784
Tue 16/61:00 p.m.
STL
-
YUL
Nonstop2h 35m
Air Canada
Tue 23/66:10 p.m.
YUL
-
STL
Nonstop2h 55m
Air Canada
Deal found 20/2C$ 794
Thu 30/72:40 p.m.
STL
-
YYZ
Nonstop1h 57m
Air Canada
Sun 2/812:55 p.m.
YYZ
-
STL
Nonstop2h 07m
Air Canada
Deal found 21/2C$ 821
Mon 3/812:10 p.m.
STL
-
YUL
Nonstop2h 32m
Air Canada
Thu 6/84:40 p.m.
YUL
-
STL
Nonstop2h 47m
Air Canada
Deal found 20/2C$ 851
Sat 4/44:05 p.m.
STL
-
YYZ
Nonstop1h 57m
United Airlines
Sat 11/42:10 p.m.
YYZ
-
STL
Nonstop2h 14m
United Airlines
Deal found 18/2C$ 853

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 21 February 2026.

Fly to

Pearson Intl

Route

Depart

Return

Price

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Thu 19/3

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$ 645

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Mon 9/3

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

Nonstop2h 01m

Toronto Pearson Intl

Wed 11/3

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

Nonstop2h 29m

C$ 735

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Wed 4/3

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

Nonstop2h 01m

Toronto Pearson Intl

Sat 7/3

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

Nonstop2h 29m

C$ 735

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Mon 10/8

2:40 p.m.-5:37 p.m.

Nonstop1h 57m

Toronto Pearson Intl

Sat 15/8

12:55 p.m.-2:02 p.m.

Nonstop2h 07m

C$ 749

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Fri 5/6

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

Nonstop1h 51m

Toronto Pearson Intl

Sun 7/6

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

Nonstop2h 06m

C$ 749

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Sun 7/6

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

Nonstop1h 51m

Toronto Pearson Intl

Wed 10/6

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

Nonstop2h 06m

C$ 749

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Sun 3/5

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

Nonstop1h 51m

Toronto Pearson Intl

Fri 8/5

6:55 p.m.-8:04 p.m.

Nonstop2h 09m

C$ 749

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Mon 13/4

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

Nonstop1h 57m

Toronto Pearson Intl

Thu 16/4

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

Nonstop2h 14m

C$ 749

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Mon 20/4

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

Nonstop1h 57m

Toronto Pearson Intl

Fri 24/4

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

Nonstop2h 14m

C$ 749

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Mon 4/5

1:00 p.m.-4:35 p.m.

Nonstop2h 35m

Montreal Pierre Elliott Trudeau Intl

Fri 8/5

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

Nonstop2h 55m

C$ 794

Flights are sorted by cheapest round-trip flights first.

Deals found on 19/2

Showing 1-10 of 34 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
10,735 reviews
Check prices

Boarding

7.3

Overall

7.1

Crew

7.8

Entertainment

6.8

Comfort

7.1

Food

6.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

YXE - YYZ

We were over three hours delayed leaving Saskatoon and missed our connection to Montreal. We were then rerouted all the way to Zurich. We were over seven hours late getting to our final destination. Then our luggage was lost for lost for three days. All three flights were delayed and our trip was definitely impacted.
Air Canada
7.1
Good
10,735 reviews
Air Canada
7.1
Good
10,735 reviews
Check prices

Boarding

7.3

Overall

7.1

Crew

7.8

Entertainment

6.8

Comfort

7.1

Food

6.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

YXE - YYZ

We were over three hours delayed leaving Saskatoon and missed our connection to Montreal. We were then rerouted all the way to Zurich. We were over seven hours late getting to our final destination. Then our luggage was lost for lost for three days. All three flights were delayed and our trip was definitely impacted.

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 21 February 2026.

  • Where can you fly direct from St. Louis?

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

  • 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 51m on average. The quickest direct flight from St. Louis at this time departs from St. Louis (1h 51m), while the longest leaves from St. Louis (1h 51m).

  • 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, March 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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