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C$ 351+ 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
11 Sep — 18 Sep1
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 12 August 2026.

Wed 7/106:55 p.m. -
Nonstop2h 05m
Sun 11/108:55 a.m. -
Nonstop1h 54m
Deal found 7/8C$ 624
Wed 9/912:55 p.m. -
Nonstop2h 05m
Thu 10/98:55 a.m. -
Nonstop1h 54m
Deal found 9/8C$ 627
Tue 8/97:15 p.m. -
Nonstop2h 05m
Fri 11/98:55 a.m. -
Nonstop1h 54m
Deal found 9/8C$ 628
Sat 29/87:15 p.m. -
Nonstop2h 09m
Sun 30/82:40 p.m. -
Nonstop1h 57m
Deal found 8/8C$ 644
Tue 1/97:15 p.m. -
Nonstop2h 07m
Tue 8/92:40 p.m. -
Nonstop1h 54m
Deal found 8/8C$ 645
Sun 30/812:55 p.m. -
Nonstop2h 07m
Mon 7/98:55 a.m. -
Nonstop1h 57m
Deal found 9/8C$ 646
Thu 3/97:15 p.m. -
Nonstop2h 07m
Sun 6/98:55 a.m. -
Nonstop1h 57m
Deal found 12/8C$ 653
Thu 22/1012:55 p.m. -
Nonstop2h 05m
Mon 26/104:05 p.m. -
Nonstop2h 00m
Deal found 11/8C$ 655
Fri 23/1012:55 p.m. -
Nonstop2h 05m
Tue 27/104:05 p.m. -
Nonstop2h 00m
Deal found 10/8C$ 656
Sun 8/112:10 p.m. -
Nonstop2h 16m
Mon 9/114:05 p.m. -
Nonstop2h 00m
Deal found 7/8C$ 715
Thu 5/112:10 p.m. -
Nonstop2h 16m
Mon 9/114:05 p.m. -
Nonstop2h 00m
Deal found 8/8C$ 716

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 12 August 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 Toronto Pearson Intl - STL Lambert-St Louis

YYZSTL

Toronto Pearson Intl

Tue 20/10

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

Nonstop2h 05m

Lambert-St Louis

Tue 27/10

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

Nonstop2h 00m

C$ 624
Quickest round-trip

TorontoSt. Louis

YYZ Toronto Pearson Intl - STL Lambert-St Louis

YYZSTL

Toronto Pearson Intl

Tue 8/9

7:15 p.m.-8:20 p.m.

Nonstop2h 05m

Lambert-St Louis

Fri 11/9

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

Nonstop1h 54m

C$ 624

TorontoSt. Louis

YYZ Toronto Pearson Intl - STL Lambert-St Louis

YYZSTL

Toronto Pearson Intl

Wed 7/10

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

Nonstop2h 05m

Lambert-St Louis

Fri 9/10

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

Nonstop1h 54m

C$ 624

TorontoSt. Louis

YYZ Toronto Pearson Intl - STL Lambert-St Louis

YYZSTL

Toronto Pearson Intl

Wed 9/9

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

Nonstop2h 05m

Lambert-St Louis

Thu 10/9

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

Nonstop1h 54m

C$ 627

TorontoSt. Louis

YYZ Toronto Pearson Intl - STL Lambert-St Louis

YYZSTL

Toronto Pearson Intl

Thu 1/10

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

Nonstop2h 05m

Lambert-St Louis

Sun 4/10

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

Nonstop1h 54m

C$ 637

TorontoSt. Louis

YYZ Toronto Pearson Intl - STL Lambert-St Louis

YYZSTL

Toronto Pearson Intl

Thu 3/9

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

Nonstop2h 07m

Lambert-St Louis

Mon 7/9

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

Nonstop1h 57m

C$ 637

TorontoSt. Louis

YYZ Toronto Pearson Intl - STL Lambert-St Louis

YYZSTL

Toronto Pearson Intl

Sat 29/8

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$ 644
Cheapest one-way

TorontoSt. Louis

YYZ Toronto Pearson Intl - STL Lambert-St Louis

YYZSTL

Toronto Pearson Intl

Sun 30/8

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

Nonstop2h 07m

C$ 351
Quickest one-way

TorontoSt. Louis

YYZ Toronto Pearson Intl - STL Lambert-St Louis

YYZSTL

Toronto Pearson Intl

Wed 7/10

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

Nonstop2h 05m

C$ 351

TorontoSt. Louis

YYZ Toronto Pearson Intl - STL Lambert-St Louis

YYZSTL

Toronto Pearson Intl

Wed 16/9

7:15 p.m.-8:20 p.m.

Nonstop2h 05m

C$ 351

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/8

Showing 1-10 of 16 resultsSorted by cheapest first
1
2

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 12 August 2026.
Read through reviews of airlines serving the United States, 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
11,464 reviews
Check prices

Crew

7.8

Overall

7.1

Comfort

7.1

Boarding

7.3

Food

6.3

Entertainment

6.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

YYZ - LAS

It's was great and the crew are very nice, captain has a smooth land on the runway 👍
Air Canada
7.1
Good
11,464 reviews
Air Canada
7.1
Good
11,464 reviews
Check prices

Crew

7.8

Overall

7.1

Comfort

7.1

Boarding

7.3

Food

6.3

Entertainment

6.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

YYZ - LAS

It's was great and the crew are very nice, captain has a smooth land on the runway 👍

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$ 371. If you're looking for a direct round-trip flight to St. Louis, you can expect to pay around C$ 1,208.

  • 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 25m 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 Montreal Pierre Elliott Trudeau Intl Airport (2h 46m).

  • 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, August 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$ 559.

See more FAQs

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