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C$ 366+ 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 5/7. 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
22 Apr — 29 Apr1
1 adult
1 adult, Economy, 0 bags

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 23 March 2026.

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Sun 3/5

7:05 a.m.-9:56 a.m.

Nonstop1h 51m

Toronto Pearson Intl

Fri 8/5

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

Nonstop2h 09m

C$ 838

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Sat 25/7

8:55 a.m.-11:52 a.m.

Nonstop1h 57m

Toronto Pearson Intl

Tue 4/8

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

Nonstop2h 07m

C$ 838

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Sat 16/5

7:05 a.m.-9:56 a.m.

Nonstop1h 51m

Toronto Pearson Intl

Wed 20/5

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

Nonstop2h 09m

C$ 838

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Sun 28/6

7:05 a.m.-9:56 a.m.

Nonstop1h 51m

Toronto Pearson Intl

Sun 5/7

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

Nonstop2h 07m

C$ 838

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Fri 21/8

8:55 a.m.-11:52 a.m.

Nonstop1h 57m

Toronto Pearson Intl

Sun 23/8

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

Nonstop2h 07m

C$ 838

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Wed 16/9

8:55 a.m.-11:49 a.m.

Nonstop1h 54m

Toronto Pearson Intl

Tue 22/9

12:55 p.m.-2:00 p.m.

Nonstop2h 05m

C$ 840
Quickest round-trip

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Fri 8/5

7:05 a.m.-9:56 a.m.

Nonstop1h 51m

Toronto Pearson Intl

Sun 10/5

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

Nonstop2h 06m

C$ 840

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Sun 3/5

1:05 p.m.-4:40 p.m.

Nonstop2h 35m

Montreal Pierre Elliott Trudeau Intl

Sun 10/5

6:30 p.m.-8:25 p.m.

Nonstop2h 55m

C$ 899

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Mon 11/5

1:05 p.m.-4:40 p.m.

Nonstop2h 35m

Montreal Pierre Elliott Trudeau Intl

Sat 16/5

6:30 p.m.-8:25 p.m.

Nonstop2h 55m

C$ 899

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Tue 15/9

12:10 p.m.-3:41 p.m.

Nonstop2h 31m

Montreal Pierre Elliott Trudeau Intl

Mon 21/9

4:55 p.m.-6:41 p.m.

Nonstop2h 46m

C$ 899

Flights are sorted by cheapest round-trip flights first.

Deals found on 20/3

Showing 1-10 of 43 resultsSorted by cheapest first
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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
10,834 reviews
Check prices

Crew

7.8

Entertainment

6.8

Overall

7.1

Comfort

7.1

Boarding

7.3

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
10,834 reviews
Air Canada
7.1
Good
10,834 reviews
Check prices

Crew

7.8

Entertainment

6.8

Overall

7.1

Comfort

7.1

Boarding

7.3

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 23 March 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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