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C$ 299+ 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 17/12. 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
29 Nov — 6 Dec1
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 30 October 2025.

Sat 14/24:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Sat 21/22:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Deal found 30/10C$ 654
Fri 16/14:05 p.m.STL - YYZ
Nonstop2h 01mMultiple Airlines
Sun 18/12:00 p.m.YYZ - STL
Nonstop2h 29mMultiple Airlines
Deal found 28/10C$ 751
Tue 25/114:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Tue 2/122:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Deal found 28/10C$ 811
Sun 7/124:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Thu 11/122:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Deal found 30/10C$ 866
Thu 23/44:05 p.m.STL - YYZ
Nonstop1h 57mAir Canada
Sun 26/42:10 p.m.YYZ - STL
Nonstop2h 14mAir Canada
Deal found 30/10C$ 912
Fri 28/114:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Mon 1/122:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Deal found 29/10C$ 998
Mon 17/114:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Fri 21/112:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Deal found 29/10C$ 1,036
Tue 11/114:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Wed 12/112:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Deal found 29/10C$ 1,209
Thu 27/114:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Mon 1/122:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Deal found 30/10C$ 1,211
Sun 23/114:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Wed 26/112:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Deal found 29/10C$ 1,419
Thu 13/114:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Fri 14/112:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Deal found 29/10C$ 1,427
Sun 9/114:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Wed 12/112:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Deal found 28/10C$ 1,437

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 30 October 2025.

Fly to

Pearson Intl

Route

Depart

Return

Price

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Thu 8/1

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

Nonstop2h 01m

Toronto Pearson Intl

Wed 14/1

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

Nonstop2h 29m

C$ 654

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Tue 3/3

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

Nonstop2h 01m

Toronto Pearson Intl

Wed 4/3

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

Nonstop2h 29m

C$ 654

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Thu 15/1

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

Nonstop2h 01m

Toronto Pearson Intl

Sun 18/1

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

Nonstop2h 29m

C$ 654

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Mon 8/12

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

Nonstop2h 01m

Toronto Pearson Intl

Mon 15/12

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

Nonstop2h 29m

C$ 654

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$ 654

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Wed 14/1

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

Nonstop2h 01m

Toronto Pearson Intl

Sat 17/1

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

Nonstop2h 29m

C$ 654

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Fri 16/1

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

Nonstop2h 01m

Toronto Pearson Intl

Sun 18/1

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

Nonstop2h 29m

C$ 654

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Fri 16/1

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

Nonstop2h 01m

Toronto Pearson Intl

Sun 18/1

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

Nonstop2h 29m

C$ 751

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Tue 10/2

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

Nonstop2h 01m

Toronto Pearson Intl

Mon 16/2

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

Nonstop2h 29m

C$ 811

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Wed 17/12

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

Nonstop2h 01m

C$ 299

Flights are sorted by cheapest round-trip flights first.

Deals found on 30/10

Showing 1-10 of 15 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
10,381 reviews
Check prices

Crew

7.8

Comfort

7.1

Food

6.3

Entertainment

6.8

Boarding

7.3

Overall

7.1

Reviews

1 / 20
2.0
Mediocre

Shawna,Sep 2025

DCA - YYZ

Business class cabin was *freezing*. Landing was so hard it injured my back - no apology or explanation given
Air Canada
7.1
Good
10,381 reviews
Air Canada
7.1
Good
10,381 reviews
Check prices

Crew

7.8

Comfort

7.1

Food

6.3

Entertainment

6.8

Boarding

7.3

Overall

7.1

Reviews

1 / 20
2.0
Mediocre

Shawna,Sep 2025

DCA - YYZ

Business class cabin was *freezing*. Landing was so hard it injured my back - no apology or explanation given

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 30 October 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$ 479. If you're looking for a direct round-trip flight from St. Louis, you can expect to pay around C$ 499.

  • 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 57m on average. The quickest direct flight from St. Louis at this time departs from St. Louis (1h 57m), while the longest leaves from St. Louis (1h 57m).

  • 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, January offers travelers the most options.

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