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C$ 303+ 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 24/1. Fares are subject to change and may not be available on all flights or dates of travel.
— STL
11 Jan — 18 Jan1
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 December 2025.

Fri 6/32:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Sun 8/34:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Deal found 11/12C$ 516
Tue 24/22:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Sat 28/24:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Deal found 10/12C$ 538
Thu 8/12:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Mon 12/14:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Deal found 11/12C$ 541
Sat 25/42:10 p.m.YYZ - STL
Nonstop2h 14mAir Canada
Sun 26/44:05 p.m.STL - YYZ
Nonstop1h 57mAir Canada
Deal found 11/12C$ 619
Tue 13/12:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Thu 15/14:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Deal found 10/12C$ 647
Thu 2/42:10 p.m.YYZ - STL
Nonstop2h 14mAir Canada
Mon 6/44:05 p.m.STL - YYZ
Nonstop1h 57mAir Canada
Deal found 11/12C$ 655
Sat 23/511:00 a.m.YYZ - STL
Nonstop2h 06mAir Canada
Sun 24/57:30 a.m.STL - YYZ
Nonstop1h 51mAir Canada
Deal found 11/12C$ 718
Sat 31/12:00 p.m.YYZ - STL
Nonstop2h 29mUnited Airlines
Sun 1/24:05 p.m.STL - YYZ
Nonstop2h 01mUnited Airlines
Deal found 11/12C$ 793
Tue 13/12:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Wed 14/14:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Deal found 11/12C$ 803
Sun 28/122:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Thu 1/14:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Deal found 9/12C$ 805

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 December 2025.
Use the filters below to find and compare direct flights to St. Louis that are best for you.

Fly from

Toronto

Route

Depart

Return

Price

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Fri 23/1

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

Nonstop2h 29m

Lambert-St Louis

Fri 30/1

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

Nonstop2h 01m

C$ 516

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Fri 6/3

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

Nonstop2h 29m

Lambert-St Louis

Sun 8/3

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

Nonstop2h 01m

C$ 516

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Thu 8/1

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

Nonstop2h 29m

Lambert-St Louis

Mon 12/1

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

Nonstop2h 01m

C$ 538

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Fri 27/3

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

Nonstop2h 29m

Lambert-St Louis

Sun 29/3

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

Nonstop1h 57m

C$ 538

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Tue 24/2

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

Nonstop2h 29m

Lambert-St Louis

Sat 28/2

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

Nonstop2h 01m

C$ 538

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Thu 5/3

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

Nonstop2h 29m

Lambert-St Louis

Sun 8/3

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

Nonstop2h 01m

C$ 538

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Wed 18/2

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

Nonstop2h 29m

Lambert-St Louis

Fri 20/2

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

Nonstop2h 01m

C$ 538

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Sat 24/1

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

Nonstop2h 29m

C$ 303

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Thu 5/2

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

Nonstop2h 29m

C$ 305

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Fri 6/2

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

Nonstop2h 29m

C$ 305

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/12

Showing 1-10 of 16 results
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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 12 December 2025.
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
9,095 reviews
Check prices

Boarding

7.7

Food

6.6

Entertainment

7.1

Crew

8.1

Comfort

7.3

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

AMS - EWR

It was good! The first 3/4 of the trip was uncomfortably cold. Only one option for lunch that I didn’t enjoy (vegetarian).
United Airlines
7.4
Good
9,095 reviews
United Airlines
7.4
Good
9,095 reviews
Check prices

Boarding

7.7

Food

6.6

Entertainment

7.1

Crew

8.1

Comfort

7.3

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

AMS - EWR

It was good! The first 3/4 of the trip was uncomfortably cold. Only one option for lunch that I didn’t enjoy (vegetarian).
Air Canada
7.1
Good
10,516 reviews
United Airlines
7.4
Good
9,095 reviews
Check prices

Boarding

7.7

Food

6.6

Entertainment

7.1

Crew

8.1

Comfort

7.3

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

AMS - EWR

It was good! The first 3/4 of the trip was uncomfortably cold. Only one option for lunch that I didn’t enjoy (vegetarian).

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$ 495. If you're looking for a direct round-trip flight to St. Louis, you can expect to pay around C$ 576.

  • Which airlines fly direct to St. Louis?

    At the moment, Air Canada, United Airlines, WestJet, Delta, American 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 30m on average. The quickest direct flight to St. Louis at this time departs from Toronto Pearson Intl Airport (2h 06m), while the longest leaves from Montreal Pierre Elliott Trudeau Intl Airport (2h 55m).

  • 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, May is worth consideration, as prices are usually at their lowest, on average. November 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$ 576.

See more FAQs

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