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C$ 289+ 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 13/1. 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
7 Jan — 14 Jan1
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 8 December 2025.

Mon 26/14:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Thu 29/12:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Deal found 7/12C$ 647
Thu 19/24:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Sun 22/22:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Deal found 6/12C$ 713
Thu 23/44:05 p.m.STL - YYZ
Nonstop1h 57mAir Canada
Sun 26/42:10 p.m.YYZ - STL
Nonstop2h 14mAir Canada
Deal found 6/12C$ 763
Mon 12/14:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Mon 19/12:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Deal found 7/12C$ 790
Sat 25/44:05 p.m.STL - YYZ
Nonstop1h 57mAir Canada
Sat 2/56:20 p.m.YYZ - STL
Nonstop2h 10mAir Canada
Deal found 7/12C$ 840
Tue 13/14:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Mon 26/12:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Deal found 6/12C$ 859
Fri 1/54:05 p.m.STL - YYZ
Nonstop1h 55mAir Canada
Mon 4/56:20 p.m.YYZ - STL
Nonstop2h 10mAir Canada
Deal found 6/12C$ 902
Fri 5/61:30 p.m.STL - YUL
Nonstop2h 35mAir Canada
Fri 12/64:30 p.m.YUL - STL
Nonstop2h 55mAir Canada
Deal found 6/12C$ 1,300
Sat 20/124:05 p.m.STL - YYZ
Nonstop2h 01mUnited Airlines
Fri 16/12:00 p.m.YYZ - STL
Nonstop2h 29mUnited Airlines
Deal found 8/12C$ 1,390
Mon 5/14:05 p.m.STL - YYZ
Nonstop2h 01mUnited Airlines
Mon 12/12:00 p.m.YYZ - STL
Nonstop2h 29mUnited Airlines
Deal found 7/12C$ 1,449
Thu 21/51:30 p.m.STL - YUL
Nonstop2h 35mAir Canada
Mon 25/54:30 p.m.YUL - STL
Nonstop2h 55mAir Canada
Deal found 8/12C$ 1,531
Sat 3/14:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Thu 8/12:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Deal found 7/12C$ 1,532

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 8 December 2025.

Fly to

Pearson Intl

Route

Depart

Return

Price

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Mon 16/3

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

Nonstop2h 01m

Toronto Pearson Intl

Fri 20/3

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

Nonstop2h 29m

C$ 647

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Mon 9/2

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

Nonstop2h 01m

Toronto Pearson Intl

Thu 12/2

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

Nonstop2h 29m

C$ 647

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Fri 6/3

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

Nonstop2h 01m

Toronto Pearson Intl

Sun 8/3

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

Nonstop2h 29m

C$ 647

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$ 647

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Tue 13/1

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

Nonstop2h 01m

Toronto Pearson Intl

Sun 25/1

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

Nonstop2h 29m

C$ 647

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Mon 26/1

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

Nonstop2h 01m

Toronto Pearson Intl

Thu 29/1

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

Nonstop2h 29m

C$ 647

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Thu 19/2

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

Nonstop2h 01m

Toronto Pearson Intl

Sun 22/2

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

Nonstop2h 29m

C$ 713

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Thu 16/4

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

Nonstop1h 57m

Toronto Pearson Intl

Sun 19/4

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

Nonstop2h 14m

C$ 763

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$ 763

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Mon 12/1

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

Nonstop2h 01m

Toronto Pearson Intl

Mon 19/1

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

Nonstop2h 29m

C$ 790

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

Showing 1-10 of 24 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
10,514 reviews
Check prices

Boarding

7.3

Crew

7.8

Comfort

7.1

Overall

7.1

Entertainment

6.8

Food

6.3

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
10,514 reviews
Air Canada
7.1
Good
10,514 reviews
Check prices

Boarding

7.3

Crew

7.8

Comfort

7.1

Overall

7.1

Entertainment

6.8

Food

6.3

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 8 December 2025.

  • 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, February offers travelers the most options.

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