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C$ 355+ Direct flights to St. Louis

This is the cheapest price on a non-stop flight to St. Louis found by a Cheapflights user in the last 72 hours by searching for a flight departing on 16/9. Fares are subject to change and may not be available on all flights or dates of travel.
— STL
31 Jul — 7 Aug1
1 adult
1 adult, Economy, 0 bags

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Cheapest flights to St. Louis
Explore the most affordable flight options available to St. Louis. Find the lowest fares based on data from user searches, with prices last updated on 1 July 2026.

Fri 14/812:55 p.m.
YYZ
-
STL
Nonstop2h 09m
Air Canada
Fri 21/88:55 a.m.
STL
-
YYZ
Nonstop2h 01m
Air Canada
Deal found 29/6C$ 633
Fri 4/97:15 p.m.
YYZ
-
STL
Nonstop2h 07m
Air Canada
Mon 7/98:55 a.m.
STL
-
YYZ
Nonstop1h 57m
Air Canada
Deal found 29/6C$ 637
Sun 23/812:55 p.m.
YYZ
-
STL
Nonstop2h 07m
Air Canada
Sun 6/98:55 a.m.
STL
-
YYZ
Nonstop1h 57m
Air Canada
Deal found 26/6C$ 653
Tue 22/97:15 p.m.
YYZ
-
STL
Nonstop2h 05m
Air Canada
Sat 26/92:40 p.m.
STL
-
YYZ
Nonstop1h 54m
Air Canada
Deal found 30/6C$ 654
Fri 28/87:15 p.m.
YYZ
-
STL
Nonstop2h 09m
Air Canada
Sun 30/82:40 p.m.
STL
-
YYZ
Nonstop1h 57m
Air Canada
Deal found 26/6C$ 667
Tue 21/77:15 p.m.
YYZ
-
STL
Nonstop2h 07m
Air Canada
Wed 22/78:55 a.m.
STL
-
YYZ
Nonstop1h 57m
Air Canada
Deal found 30/6C$ 668
Tue 18/812:55 p.m.
YYZ
-
STL
Nonstop2h 07m
Air Canada
Fri 21/88:55 a.m.
STL
-
YYZ
Nonstop2h 01m
Air Canada
Deal found 26/6C$ 670
Tue 11/87:15 p.m.
YYZ
-
STL
Nonstop2h 09m
Air Canada
Tue 18/82:40 p.m.
STL
-
YYZ
Nonstop1h 57m
Air Canada
Deal found 27/6C$ 675
Thu 27/812:55 p.m.
YYZ
-
STL
Nonstop2h 07m
Air Canada
Thu 3/98:55 a.m.
STL
-
YYZ
Nonstop1h 57m
Air Canada
Deal found 1/7C$ 682
Fri 17/77:15 p.m.
YYZ
-
STL
Nonstop2h 07m
Air Canada
Wed 22/78:55 a.m.
STL
-
YYZ
Nonstop1h 57m
Air Canada
Deal found 27/6C$ 684

Best time to book a flight to St. Louis

Have a flexible travel schedule? Discover the best time to fly to 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.

Cheapflights Fare Finder

 
Use the slider to find non-stop flights to 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 and data was last updated on 1 July 2026.
Use the filters below to find and compare direct flights to St. Louis that are best for you.

Fly from

Route

Depart

Return

Price

Cheapest round-trip

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Fri 14/8

12:55 p.m.-2:04 p.m.

Nonstop2h 09m

Lambert-St Louis

Fri 21/8

8:55 a.m.-11:56 a.m.

Nonstop2h 01m

C$ 633

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Fri 4/9

7:15 p.m.-8:22 p.m.

Nonstop2h 07m

Lambert-St Louis

Mon 7/9

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

Nonstop1h 57m

C$ 637
Quickest round-trip

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Tue 22/9

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

Nonstop2h 05m

Lambert-St Louis

Sat 26/9

2:40 p.m.-5:34 p.m.

Nonstop1h 54m

C$ 654

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Sat 24/10

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

Nonstop2h 05m

Lambert-St Louis

Sun 1/11

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

Nonstop2h 00m

C$ 655

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Mon 31/8

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

Nonstop2h 07m

Lambert-St Louis

Wed 30/9

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

Nonstop1h 54m

C$ 668

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Tue 21/7

7:15 p.m.-8:22 p.m.

Nonstop2h 07m

Lambert-St Louis

Wed 22/7

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

Nonstop1h 57m

C$ 668

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Thu 13/8

12:55 p.m.-2:04 p.m.

Nonstop2h 09m

Lambert-St Louis

Thu 20/8

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

Nonstop1h 57m

C$ 682

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Wed 26/8

7:15 p.m.-8:24 p.m.

Nonstop2h 09m

Lambert-St Louis

Sun 30/8

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

Nonstop1h 57m

C$ 682

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Fri 17/7

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

Nonstop2h 07m

Lambert-St Louis

Mon 27/7

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

Nonstop1h 57m

C$ 684

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Thu 27/8

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

Nonstop2h 07m

Lambert-St Louis

Thu 3/9

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

Nonstop1h 57m

C$ 684

Flights are sorted by cheapest round-trip flights first.

Deals found on 27/6

Showing 1-10 of 21 resultsSorted by cheapest first
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Reviews of airlines flying non-stop to St. Louis

Get insights into the airlines that provide direct flights to 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 to St. Louis. Reviews last updated 1 July 2026.
Read through reviews of airlines serving the United States, such as United Airlines and 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.
United Airlines
7.4
Good
9,909 reviews
Check prices

Comfort

7.3

Boarding

7.7

Overall

7.4

Crew

8.1

Entertainment

7.1

Food

6.6

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
United Airlines
7.4
Good
9,909 reviews
United Airlines
7.4
Good
9,909 reviews
Check prices

Comfort

7.3

Boarding

7.7

Overall

7.4

Crew

8.1

Entertainment

7.1

Food

6.6

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
Air Canada
7.1
Good
11,282 reviews
United Airlines
7.4
Good
9,909 reviews
Check prices

Comfort

7.3

Boarding

7.7

Overall

7.4

Crew

8.1

Entertainment

7.1

Food

6.6

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats

FAQ about direct flights to St. Louis

Find answers to frequently asked questions about direct flights to St. Louis to unlock the best deals on Cheapflights.

  • How much are direct flights to St. Louis?

    On average, a one-way direct flight to St. Louis will cost users approximately C$ 386. If you're looking for a direct round-trip flight to St. Louis, you can expect to pay around C$ 654.

  • Which airlines fly direct to St. Louis?

    At the moment, Air Canada, United Airlines offer direct flights to St. Louis. Air Canada is currently the most popular airline that flies direct to St. Louis.

  • How long is a direct flight to St. Louis?

    While the flight duration depends heavily on the origin, travellers can expect non-stop flights to St. Louis to last approximately 2h 05m on average. The quickest direct flight to St. Louis at this time departs from Toronto Pearson Intl Airport (2h 05m), while the longest leaves from Toronto Pearson Intl Airport (2h 05m).

  • What is the best time of year to fly direct to St. Louis?

    If you're seeking the lowest price on a direct flight to St. Louis, January is worth consideration, as prices are usually at their lowest, on average. April may be most appealing to users looking for the quietest time to visit St. Louis, when demand is typically at its lowest.

  • What is the most popular direct flight origin to St. Louis?

    Currently, the most popular direct flight origin to St. Louis is Toronto Pearson Intl Airport. A round-trip direct flight from Toronto Pearson Intl Airport to St. Louis typically costs around C$ 520.

See more FAQs

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