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C$ 288+ 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 29/1. Fares are subject to change and may not be available on all flights or dates of travel.
— STL
29 Nov — 6 Dec1
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 30 October 2025.

Fri 21/112:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Mon 24/114:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Deal found 28/10C$ 507
Fri 13/22:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Mon 16/24:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Deal found 30/10C$ 519
Tue 25/112:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Fri 28/114:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Deal found 28/10C$ 529
Fri 21/112:00 p.m.YYZ - STL
Nonstop2h 29mMultiple Airlines
Mon 24/114:05 p.m.STL - YYZ
Nonstop2h 01mMultiple Airlines
Deal found 28/10C$ 585
Thu 20/112:00 p.m.YYZ - STL
Nonstop2h 29mUnited Airlines
Mon 24/114:05 p.m.STL - YYZ
Nonstop2h 01mUnited Airlines
Deal found 28/10C$ 605
Wed 19/112:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Fri 28/114:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Deal found 29/10C$ 637
Fri 26/122:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Thu 8/14:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Deal found 28/10C$ 640
Tue 30/122:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Thu 1/14:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Deal found 28/10C$ 665
Thu 20/112:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Sun 23/114:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Deal found 28/10C$ 760
Tue 25/112:00 p.m.YYZ - STL
Nonstop2h 29mAir Canada
Tue 2/124:05 p.m.STL - YYZ
Nonstop2h 01mAir Canada
Deal found 28/10C$ 765

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 30 October 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 5/12

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

Nonstop2h 29m

Lambert-St Louis

Mon 8/12

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

Nonstop2h 01m

C$ 507

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Tue 24/2

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

Nonstop2h 29m

Lambert-St Louis

Sun 1/3

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

Nonstop2h 01m

C$ 519

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Fri 13/2

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

Nonstop2h 29m

Lambert-St Louis

Mon 16/2

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

Nonstop2h 01m

C$ 519

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Tue 25/11

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

Nonstop2h 29m

Lambert-St Louis

Fri 28/11

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

Nonstop2h 01m

C$ 529

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Tue 9/12

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

Nonstop2h 29m

Lambert-St Louis

Wed 10/12

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

Nonstop2h 01m

C$ 529

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Wed 11/2

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

Nonstop2h 29m

Lambert-St Louis

Thu 12/2

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

Nonstop2h 01m

C$ 529

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Tue 3/3

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

Nonstop2h 29m

Lambert-St Louis

Wed 4/3

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

Nonstop2h 01m

C$ 540

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Fri 26/12

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

Nonstop2h 29m

Lambert-St Louis

Thu 8/1

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

Nonstop2h 01m

C$ 542

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Tue 13/1

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

Nonstop2h 29m

Lambert-St Louis

Fri 16/1

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

Nonstop2h 01m

C$ 542

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Fri 21/11

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

Nonstop2h 29m

Lambert-St Louis

Mon 24/11

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

Nonstop2h 01m

C$ 585

Flights are sorted by cheapest round-trip flights first.

Deals found on 28/10

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 30 October 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
8,998 reviews
Check prices

Comfort

7.3

Entertainment

7.1

Food

6.6

Overall

7.4

Crew

8.1

Boarding

7.7

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
United Airlines
7.4
Good
8,998 reviews
United Airlines
7.4
Good
8,998 reviews
Check prices

Comfort

7.3

Entertainment

7.1

Food

6.6

Overall

7.4

Crew

8.1

Boarding

7.7

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
Air Canada
7.1
Good
10,381 reviews
United Airlines
7.4
Good
8,998 reviews
Check prices

Comfort

7.3

Entertainment

7.1

Food

6.6

Overall

7.4

Crew

8.1

Boarding

7.7

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

Temperature and rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature and rainfall totals by month.

STL

Temperature

0 - 27 °C

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 0.0 C).

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$ 600.

  • 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 4h 20m on average. The quickest direct flight to St. Louis at this time departs from Toronto Pearson Intl Airport (2h 29m), while the longest leaves from Montreal Pierre Elliott Trudeau Intl Airport (6h 12m).

  • 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 Toronto Pearson Intl Airport. A round-trip direct flight from Toronto Pearson Intl Airport to St. Louis typically costs around C$ 600.

See more FAQs

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