Find flights
Airlines

C$ 282+ 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 10/2. Fares are subject to change and may not be available on all flights or dates of travel.
— STL
26 Jan — 2 Feb1
1 adult
1 adult, Economy, 0 bags

Find flight deals to St. Louis

Enter your travel dates to find the best prices.

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 27 December 2025.

Sat 24/12:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Sat 31/14:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Deal found 25/12C$ 459
Sun 25/12:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Fri 30/14:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Deal found 26/12C$ 467
Fri 6/22:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Sun 8/24:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Deal found 27/12C$ 469
Sat 28/32:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Sun 29/34:05 p.m.STL - YYZ
Nonstop1h 57mAir Canada
Deal found 26/12C$ 492
Fri 13/22:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Mon 16/24:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Deal found 26/12C$ 540
Thu 7/511:00 a.m.YYZ - STL
Nonstop2h 06mAir Canada
Sun 10/52:20 p.m.STL - YYZ
Nonstop1h 58mAir Canada
Deal found 26/12C$ 573
Wed 27/511:00 a.m.YYZ - STL
Nonstop2h 06mAir Canada
Wed 10/67:30 a.m.STL - YYZ
Nonstop1h 51mAir Canada
Deal found 27/12C$ 574
Fri 1/511:00 a.m.YYZ - STL
Nonstop2h 06mAir Canada
Mon 4/52:20 p.m.STL - YYZ
Nonstop1h 58mAir Canada
Deal found 27/12C$ 592
Thu 4/611:00 a.m.YYZ - STL
Nonstop2h 06mAir Canada
Mon 8/67:30 a.m.STL - YYZ
Nonstop1h 51mAir Canada
Deal found 27/12C$ 723
Mon 26/12:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Mon 2/24:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Deal found 27/12C$ 942
Thu 8/12:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Mon 12/14:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Deal found 26/12C$ 1,107
Mon 12/12:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Wed 14/14:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Deal found 27/12C$ 1,561

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 27 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

Sat 24/1

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

Nonstop2h 29m

Lambert-St Louis

Sat 31/1

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

Nonstop2h 01m

C$ 459

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$ 467

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Sun 25/1

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$ 467

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Fri 6/2

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

Nonstop2h 29m

Lambert-St Louis

Sun 8/2

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

Nonstop2h 01m

C$ 469

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Thu 22/1

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

Nonstop2h 29m

Lambert-St Louis

Mon 26/1

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

Nonstop2h 01m

C$ 492

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$ 492

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Fri 27/3

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

Nonstop2h 29m

Lambert-St Louis

Tue 31/3

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

Nonstop1h 57m

C$ 492

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Sat 28/3

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$ 492

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Wed 21/1

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

Nonstop2h 29m

Lambert-St Louis

Sat 24/1

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

Nonstop2h 01m

C$ 492

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Tue 10/2

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

Nonstop2h 29m

C$ 282

Flights are sorted by cheapest round-trip flights first.

Deals found on 27/12

Showing 1-10 of 16 results
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 27 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
9,116 reviews
Check prices

Boarding

7.7

Entertainment

7.1

Crew

8.1

Comfort

7.3

Overall

7.4

Food

6.6

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
United Airlines
7.4
Good
9,116 reviews
United Airlines
7.4
Good
9,116 reviews
Check prices

Boarding

7.7

Entertainment

7.1

Crew

8.1

Comfort

7.3

Overall

7.4

Food

6.6

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
Air Canada
7.1
Good
10,562 reviews
United Airlines
7.4
Good
9,116 reviews
Check prices

Boarding

7.7

Entertainment

7.1

Crew

8.1

Comfort

7.3

Overall

7.4

Food

6.6

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.

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$ 550. If you're looking for a direct round-trip flight to St. Louis, you can expect to pay around C$ 570.

  • 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$ 590.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Direct flights to Missouri

Book a non-stop flight to one of these other cities located in Missouri.
Direct flights to Kansas City

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.