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Find flight deals to St. Louis

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 17 September 2025.

Sat 25/102:15 p.m.YYZ - STL

Nonstop2h 03mAir Canada

Sun 2/114:05 p.m.STL - YYZ

Nonstop2h 01mAir Canada

Deal found 16/9C$ 527

Wed 15/102:15 p.m.YYZ - STL

Nonstop2h 03mAir Canada

Wed 22/104:05 p.m.STL - YYZ

Nonstop1h 55mAir Canada

Deal found 17/9C$ 552

Sat 1/112:00 p.m.YYZ - STL

Nonstop2h 29mAir Canada

Sat 8/114:05 p.m.STL - YYZ

Nonstop2h 01mAir Canada

Deal found 17/9C$ 565

Sat 25/102:15 p.m.YYZ - STL

Nonstop2h 03mAir Canada

Sat 25/108:20 p.m.STL - YYZ

Nonstop1h 56mAir Canada

Deal found 16/9C$ 567

Thu 30/102:00 p.m.YYZ - STL

Nonstop2h 29mAir Canada

Thu 6/114:05 p.m.STL - YYZ

Nonstop2h 01mAir Canada

Deal found 15/9C$ 571

Tue 25/112:00 p.m.YYZ - STL

Nonstop2h 29mAir Canada

Fri 28/114:05 p.m.STL - YYZ

Nonstop2h 01mAir Canada

Deal found 15/9C$ 576

Wed 15/102:15 p.m.YYZ - STL

Nonstop2h 03mAir Canada

Tue 21/104:05 p.m.STL - YYZ

Nonstop1h 55mAir Canada

Deal found 16/9C$ 587

Mon 24/112:00 p.m.YYZ - STL

Nonstop2h 29mAir Canada

Sat 29/114:05 p.m.STL - YYZ

Nonstop2h 01mAir Canada

Deal found 15/9C$ 645

Fri 31/102:00 p.m.YYZ - STL

Nonstop2h 29mUnited Airlines

Fri 7/114:05 p.m.STL - YYZ

Nonstop2h 01mUnited Airlines

Deal found 16/9C$ 660

Best flights to St. Louis
Discover carefully curated flight deals to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 17 September 2025.

Tue 4/112:00 p.m.YYZ - STL

Nonstop2h 29mAir Canada

Fri 7/114:05 p.m.STL - YYZ

Nonstop2h 01mAir Canada

Deal found 16/9C$ 527

Fri 31/102:00 p.m.YYZ - STL

Nonstop2h 29mUnited Airlines

Fri 7/114:05 p.m.STL - YYZ

Nonstop2h 01mUnited Airlines

Deal found 16/9C$ 660

Sat 25/102:15 p.m.YYZ - STL

Nonstop2h 03mAir Canada

Sun 2/114:05 p.m.STL - YYZ

Nonstop2h 01mAir Canada

Deal found 16/9C$ 527

Wed 15/102:15 p.m.YYZ - STL

Nonstop2h 03mAir Canada

Wed 22/104:05 p.m.STL - YYZ

Nonstop1h 55mAir Canada

Deal found 17/9C$ 552

Thu 2/102:15 p.m.YYZ - STL

Nonstop2h 03mUnited Airlines

Sun 5/109:15 a.m.STL - YYZ

Nonstop1h 56mUnited Airlines

Deal found 16/9C$ 662

Sat 1/112:00 p.m.YYZ - STL

Nonstop2h 29mAir Canada

Sat 8/114:05 p.m.STL - YYZ

Nonstop2h 01mAir Canada

Deal found 17/9C$ 565

Sat 25/102:15 p.m.YYZ - STL

Nonstop2h 03mAir Canada

Sat 25/108:20 p.m.STL - YYZ

Nonstop1h 56mAir Canada

Deal found 16/9C$ 567

Wed 15/102:15 p.m.YYZ - STL

Nonstop2h 03mAir Canada

Tue 21/104:05 p.m.STL - YYZ

Nonstop1h 55mAir Canada

Deal found 16/9C$ 587

Thu 4/122:00 p.m.YYZ - STL

Nonstop2h 29mAir Canada

Sun 7/124:05 p.m.STL - YYZ

Nonstop2h 01mAir Canada

Deal found 16/9C$ 587

Tue 4/112:00 p.m.YYZ - STL

Nonstop2h 29mAir Canada

Thu 6/114:05 p.m.STL - YYZ

Nonstop2h 01mAir Canada

Deal found 16/9C$ 620

One-way flights to St. Louis
Search for one-way flight options to St. Louis. Find affordable one-way fares based on user searches. Data last updated 17 September 2025.

Sun 2/112:00 p.m.YYZ - STL

Nonstop2h 29mAir Canada

Deal found 16/9C$ 299

Sat 25/102:15 p.m.YYZ - STL

Nonstop2h 03mAir Canada

Deal found 16/9C$ 318

Sat 1/112:00 p.m.YYZ - STL

Nonstop2h 29mAir Canada

Deal found 17/9C$ 330

Fri 31/102:00 p.m.YYZ - STL

Nonstop2h 29mUnited Airlines

Deal found 16/9C$ 366

Tue 14/106:40 p.m.YYZ - STL

Nonstop2h 03mAir Canada

Deal found 16/9C$ 392

Sun 12/102:15 p.m.YYZ - STL

Nonstop2h 03mAir Canada

Deal found 15/9C$ 554

Tue 30/92:15 p.m.YYZ - STL

Nonstop2h 03mUnited Airlines

Deal found 16/9C$ 680

Sun 2/112:00 p.m.YYZ - STL

Nonstop2h 29mUnited Airlines

Deal found 16/9C$ 757

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.

Fly from

Route

Depart

Return

Price

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Tue 4/11

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

Nonstop2h 29m

Lambert-St Louis

Fri 7/11

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

Nonstop2h 01m

C$ 527

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Sat 25/10

2:15 p.m.-3:18 p.m.

Nonstop2h 03m

Lambert-St Louis

Sun 2/11

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

Nonstop2h 01m

C$ 527

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Wed 15/10

2:15 p.m.-3:18 p.m.

Nonstop2h 03m

Lambert-St Louis

Wed 22/10

4:05 p.m.-7:00 p.m.

Nonstop1h 55m

C$ 552

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Sat 1/11

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

Nonstop2h 29m

Lambert-St Louis

Sat 8/11

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

Nonstop2h 01m

C$ 565

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Sat 25/10

2:15 p.m.-3:18 p.m.

Nonstop2h 03m

Lambert-St Louis

Sat 25/10

8:20 p.m.-11:16 p.m.

Nonstop1h 56m

C$ 567

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Wed 15/10

2:15 p.m.-3:18 p.m.

Nonstop2h 03m

Lambert-St Louis

Tue 21/10

4:05 p.m.-7:00 p.m.

Nonstop1h 55m

C$ 587

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Thu 4/12

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

Nonstop2h 29m

Lambert-St Louis

Sun 7/12

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

Nonstop2h 01m

C$ 587

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Tue 4/11

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

Nonstop2h 29m

Lambert-St Louis

Thu 6/11

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

Nonstop2h 01m

C$ 620

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Fri 31/10

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

Nonstop2h 29m

Lambert-St Louis

Fri 7/11

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

Nonstop2h 01m

C$ 660

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Thu 2/10

2:15 p.m.-3:18 p.m.

Nonstop2h 03m

Lambert-St Louis

Sun 5/10

9:15 a.m.-12:11 p.m.

Nonstop1h 56m

C$ 662

Flights are sorted by cheapest round-trip flights first.

Deals found on 17/9

Showing 1-10 of 16 results

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Reviews of airlines flying non-stop to St. Louis

Read through reviews of airlines serving the United States, such as United Airlines,WestJet, andAir 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

Reviews

1 / 20

10.0

Excellent

Julia,Sep 2025

BUF - DEN

The staff were amazing, from check in to boarding and on the flight. The range of entertainment options were really good as well.

United Airlines

7.4

Good

United Airlines

7.4

Good

Reviews

1 / 20

10.0

Excellent

Julia,Sep 2025

BUF - DEN

The staff were amazing, from check in to boarding and on the flight. The range of entertainment options were really good as well.

7.2

Good

United Airlines

7.4

Good

Reviews

1 / 20

10.0

Excellent

Julia,Sep 2025

BUF - DEN

The staff were amazing, from check in to boarding and on the flight. The range of entertainment options were really good as well.

7.1

Good

United Airlines

7.4

Good

Reviews

1 / 20

10.0

Excellent

Julia,Sep 2025

BUF - DEN

The staff were amazing, from check in to boarding and on the flight. The range of entertainment options were really good as well.

Temperature and rainfall in St. Louis 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

How much are direct flights to St. Louis?
On average, a one-way direct flight to St. Louis will cost users approximately C$ 755. If you're looking for a direct round-trip flight to St. Louis, you can expect to pay around C$ 1,065.
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 25m on average. The quickest direct flight to St. Louis at this time departs from Toronto Pearson Intl Airport (2h 03m), while the longest leaves from Montreal Pierre Elliott Trudeau Intl Airport (2h 47m).
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. July 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$ 865.

See more FAQs

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