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C$ 254+ 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 7/1. Fares are subject to change and may not be available on all flights or dates of travel.
— STL
3 Jan — 10 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 4 December 2025.

Thu 22/12:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Sun 25/14:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Deal found 1/12C$ 447
Fri 23/12:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Sun 25/14:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Deal found 3/12C$ 465
Tue 24/22:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Sat 28/24:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Deal found 3/12C$ 466
Thu 8/12:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Sun 11/14:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Deal found 2/12C$ 511
Tue 27/12:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Sun 15/24:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Deal found 2/12C$ 518
Tue 3/22:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Thu 5/24:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Deal found 3/12C$ 528
Wed 7/12:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Mon 12/14:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Deal found 1/12C$ 539
Fri 13/22:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Wed 18/24:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Deal found 3/12C$ 540
Thu 8/12:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Mon 12/14:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Deal found 3/12C$ 554
Sat 17/12:00 p.m.YYZ - STL
Nonstop2h 29mUnited Airlines
Sat 24/14:05 p.m.STL - YYZ
Nonstop2h 01mUnited Airlines
Deal found 2/12C$ 613
Wed 31/122:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Wed 7/14:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Deal found 3/12C$ 646

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 4 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

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$ 466

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Wed 14/1

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

Nonstop2h 29m

Lambert-St Louis

Wed 21/1

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

Nonstop2h 01m

C$ 466

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Tue 3/2

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

Nonstop2h 29m

Lambert-St Louis

Thu 5/2

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

Nonstop2h 01m

C$ 528

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Sat 7/3

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

Nonstop2h 29m

Lambert-St Louis

Mon 9/3

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

Nonstop2h 01m

C$ 540

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$ 540

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Fri 13/2

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

Nonstop2h 29m

Lambert-St Louis

Wed 18/2

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

Nonstop2h 01m

C$ 540

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Sat 7/3

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$ 540

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Fri 13/2

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

Nonstop2h 29m

Lambert-St Louis

Tue 17/2

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

Nonstop2h 01m

C$ 540

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Sat 14/2

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

Nonstop2h 29m

Lambert-St Louis

Wed 18/2

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

Nonstop2h 01m

C$ 540

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Fri 6/3

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

Nonstop2h 29m

Lambert-St Louis

Mon 9/3

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

Nonstop2h 01m

C$ 541

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/12

Showing 1-10 of 22 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 4 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
9,066 reviews
Check prices

Boarding

7.7

Overall

7.4

Crew

8.1

Comfort

7.3

Food

6.6

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.
United Airlines
7.4
Good
9,066 reviews
United Airlines
7.4
Good
9,066 reviews
Check prices

Boarding

7.7

Overall

7.4

Crew

8.1

Comfort

7.3

Food

6.6

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.
Air Canada
7.1
Good
10,500 reviews
United Airlines
7.4
Good
9,066 reviews
Check prices

Boarding

7.7

Overall

7.4

Crew

8.1

Comfort

7.3

Food

6.6

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.

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$ 501. If you're looking for a direct round-trip flight to St. Louis, you can expect to pay around C$ 895.

  • 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 34m on average. The quickest direct flight to St. Louis at this time departs from Toronto Pearson Intl Airport (2h 14m), 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. September 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 Montreal Pierre Elliott Trudeau Intl Airport. A round-trip direct flight from Montreal Pierre Elliott Trudeau Intl Airport to St. Louis typically costs around C$ 501.

See more FAQs

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