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C$ 213+ Cheap flights to St. Louis

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 15/4. Fares are subject to change and may not be available on all flights or dates of travel.
— STL
4 Mar — 11 Mar1
1 adult

Flights to St. Louis in 2025

Find the latest flights to St. Louis in 2025, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 629,999 searches and data was last updated on 27 February 2025.

Round-trip from

C$ 581

One-way from

C$ 213

Popular in

January

Cheapest in

May

Average price

C$ 713

Good round-trip deal

C$ 602 or less

Good one-way deal

C$ 818 or less
Air Canada
  • Air Canada
  • 22/6-26/6
  • Nonstop
  • 4h 01m total
  • Toronto to St. Louis
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15/4
  • 15/4
  • 1 total stop
  • 10h 36m total
  • Toronto to St. Louis
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Highest demand for flights based on searches. 6% potential increase in price (C$ 68 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease (C$ 12 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Price to beat on a round-trip flight from Toronto to Lambert-St Louis.
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Price to beat on a one-way flight from Toronto to Lambert-St Louis.
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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 27 February 2025.

Tue 1/41:40 p.m.YYZ - STL
Nonstop2h 09mAir Canada
Sat 5/43:30 p.m.STL - YYZ
Nonstop2h 00mAir Canada
Deal found 27/2C$ 581
Thu 10/41:40 p.m.YYZ - STL
Nonstop2h 09mUnited Airlines
Fri 9/52:30 p.m.STL - YYZ
Nonstop2h 00mUnited Airlines
Deal found 27/2C$ 582
Tue 18/37:10 a.m.YYZ - STL
2 stops10h 32mMultiple Airlines
Fri 28/39:50 a.m.STL - YYZ
3 stops27h 05mMultiple Airlines
Deal found 26/2C$ 584
Fri 11/47:45 a.m.YYZ - STL
1 stop5h 11mDelta
Fri 18/46:08 a.m.STL - YYZ
1 stop9h 02mDelta
Deal found 26/2C$ 587
Mon 21/46:00 a.m.YYZ - STL
1 stop4h 28mWestJet
Mon 21/44:05 p.m.STL - YYZ
1 stop17h 19mWestJet
Deal found 26/2C$ 662
Tue 18/36:00 a.m.YYZ - STL
1 stop11h 12mAmerican Airlines
Fri 28/311:55 a.m.STL - YYZ
1 stop8h 20mAmerican Airlines
Deal found 26/2C$ 690
Mon 17/31:50 p.m.YYZ - STL
Nonstop2h 16mLufthansa
Thu 20/33:50 p.m.STL - YYZ
Nonstop1h 55mLufthansa
Deal found 27/2C$ 1,109
Wed 26/34:20 p.m.YYZ - STL
2 stops17h 28mAlaska Airlines
Sun 30/36:44 a.m.STL - YYZ
1 stop30h 56mAlaska Airlines
Deal found 27/2C$ 1,204

Find flights to St. Louis within your budget

Locate flights to St. Louis that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 629,999 searches and data was last updated on 27 February 2025.

Fly from

Toronto

Route

Depart

Return

Price

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Sun 22/6

11:30 a.m.-12:36 p.m.

Nonstop2h 06m

Lambert-St Louis

Thu 26/6

7:30 a.m.-10:25 a.m.

Nonstop1h 55m

C$ 581

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Sun 6/4

7:10 a.m.-5:52 p.m.

2 stops11h 42m

Lambert-St Louis

Thu 17/4

12:15 p.m.-11:55 p.m.

3 stops34h 40m

C$ 582

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Fri 11/4

7:45 a.m.-11:56 a.m.

1 stop5h 11m

Lambert-St Louis

Fri 18/4

6:08 a.m.-4:10 p.m.

1 stop9h 02m

C$ 587

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Fri 28/3

1:50 p.m.-3:06 p.m.

Nonstop2h 16m

Lambert-St Louis

Mon 31/3

3:50 p.m.-6:50 p.m.

Nonstop2h 00m

C$ 605

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Mon 21/4

6:00 a.m.-9:28 a.m.

1 stop4h 28m

Lambert-St Louis

Mon 21/4

4:05 p.m.-10:24 a.m.

1 stop17h 19m

C$ 662

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Wed 26/3

4:20 p.m.-8:48 a.m.

2 stops17h 28m

Lambert-St Louis

Sun 30/3

6:44 a.m.-2:40 p.m.

1 stop30h 56m

C$ 1,204

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Tue 15/4

7:40 a.m.-5:16 p.m.

1 stop10h 36m

C$ 213

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Thu 14/8

6:30 p.m.-7:40 p.m.

Nonstop2h 10m

C$ 314

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Thu 14/8

7:20 a.m.-2:53 p.m.

2 stops8h 33m

C$ 322

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Tue 10/6

5:10 p.m.-11:39 p.m.

1 stop7h 29m

C$ 344

Flights are sorted by cheapest round-trip flights first.

Deals found on 27/2

Showing 1-10 of 12 results
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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.

Travel insights for flights to St. Louis

Get recent, data-driven insights about flights to St. Louis including ideal travel times, pricing trends, and more.

When is the best time to book a flight to St. Louis?

Use this chart to determine the optimal time to book a round-trip flight from Toronto to St. Louis. Price data was last updated on 25 February 2025.

The best time to book flights to St. Louis is 78 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

How long is the flight to St. Louis?

On average, a flight from Toronto to St. Louis takes 2 hours 6 minutes. Flights to St. Louis from other popular cities in Canada will vary in length. Below are a few examples of popular routes and their flight times.

What are the most popular airlines that fly to St. Louis?

The most popular airlines flying from Toronto to St. Louis are Air Canada, United Airlines and WestJet.

Air Canada

Air Canada

From C$ 376

United Airlines

United Airlines

From C$ 408

WestJet

WestJet

From C$ 454

What are the cheapest airlines that fly to St. Louis?

The cheapest airlines flying from Toronto to St. Louis are Air Canada, United Airlines and WestJet.

Rainfall in St. Louis by month

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

In terms of precipitation, rainfall in St. Louis ranges from 56.0 - 119.0 mm per month. May is typically the wettest month, when rainfall can reach 119.0 mm. February is typically the driest time to visit St. Louis when rainfall is around 56.0 mm.

Temperature in St. Louis by month

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

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).

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service 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 February 2025.
Alaska Airlines
8.0
Very good
9,717 reviews
Check prices

Food

7.1

Comfort

7.9

Entertainment

7.1

Boarding

8.2

Overall

8.0

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Alaska Airlines
8.0
Very good
9,717 reviews
Alaska Airlines
8.0
Very good
9,717 reviews
Check prices

Food

7.1

Comfort

7.9

Entertainment

7.1

Boarding

8.2

Overall

8.0

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Delta
8.0
Very good
8,140 reviews
Alaska Airlines
8.0
Very good
9,717 reviews
Check prices

Food

7.1

Comfort

7.9

Entertainment

7.1

Boarding

8.2

Overall

8.0

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

United Airlines
7.4
Good
8,723 reviews
Alaska Airlines
8.0
Very good
9,717 reviews
Check prices

Food

7.1

Comfort

7.9

Entertainment

7.1

Boarding

8.2

Overall

8.0

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,717 reviews
Check prices

Food

7.1

Comfort

7.9

Entertainment

7.1

Boarding

8.2

Overall

8.0

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

WestJet
7.2
Good
2,794 reviews
Alaska Airlines
8.0
Very good
9,717 reviews
Check prices

Food

7.1

Comfort

7.9

Entertainment

7.1

Boarding

8.2

Overall

8.0

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

St. Louis climate

St Louis has moderate, seasonal weather, but storms can occur at any time of the year. July and August are the hottest and most humid months of the year, and January and February are cold, usually with snow. Winter temperatures range from below 0 to 13 degrees (C), while summers have daily temperatures of between 14 to 32 degrees. 

Getting around St. Louis

You won’t need a car in downtown St Louis. You can get almost anywhere downtown with the St Louis MetroLink, which hits most of the area’s tourist attractions. There are even some shuttle buses connecting the MetroLink stations to the attractions. MetroBus, which is part of the same system, can get you farther out into the city. Rent a car if you’d like. St Louis is easy to navigate and you can take the highways out to top tourist neighbourhoods like University City, Central West End and Clayton. Most hotels and tourist attractions have a taxi stand if you need a cab. You can also call for a taxi ahead of time. 

What is good to know if travelling to St. Louis?

  • Independence Day is celebrated with style in St. Louis. Grab a blanket and a couple chairs and head down to the riverfront for Fourth of July festivities. Grab a spot underneath the Arch and enjoy the spectacle. From people watching, to concerts and outdoor vendors and markets, there is much to do to celebrate America’s birthday. And of course, an amazing fireworks display happens on the riverfront.
  • St. Louis’ Soulard Market Place is home to the best outdoor markets in the city, and also one of the best Mardi Gras party’s in the Midwest.
  • The Butterfly Garden in St. Louis’ suburb, Chesterfield, is a must-see for travellers of any age. Located in Faust Park about 30 minutes west of St. Louis City, the Butterfly Garden is a delight for everyone.
  • You don’t have to be a baseball fan to appreciate Busch Stadium. Take a tour of the Stadium or take in a game.
  • Beer lovers know St. Louis as the home of Anheuser-Busch. Brewed right in the city center, the Anheuser-Busch Brewery offers daily tours, and of course, beer tastings. 

  • When is the best time to fly to St. Louis?

    Peak Season Summers in St. Louis are hot and humid, but this is also the best time to visit if you want to take part in the riverfront activities. St. Louis is a big baseball town, and the St. Louis Cardinals draw thousands of fans a year. If you’re planning to visit St. Louis during the spring and summer seasons, book flights early and make accommodations ahead of time. The city gets full fast. Off Season St. Louis is prone to long, cold winters.  The city all but shuts down during the wintertime and while many tourist attractions are open to the public, none of the outside activities are much fun in the snow. However, if you’re heading to St. Louis for some football time or to explore the excellent museums, you’re likely to find a cheap flight to St. Louis in the winter.

  • What airport do you fly into for flights to St. Louis?

    If you book a flight to St. Louis, you will be flying into Lambert-St Louis, which is the city’s only airport. Lambert-St Louis (STL) is located 20.4 km from the centre of St. Louis. On average, Lambert-St Louis has 1 flight from Toronto per day from 3 airlines.

  • Can I find cheaper flights to St. Louis if I am willing to have layovers?

    Yes, flights with layovers are often cheaper than direct flights. Keep an eye out for flight deals to St. Louis on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to St. Louis?

    Based on reviews from Cheapflights users, Air Canada is rated the highest out of the airlines that fly to St. Louis.

  • What is the cheapest airport to fly to in St. Louis?

    Lambert-St Louis is currently the cheapest airport to fly to in St. Louis. One-way flights to Lambert-St Louis typically cost C$ 310, while round-trip flights cost around C$ 374.

  • How much is a round-trip flight to St. Louis?

    A round-trip flight to St. Louis will typically cost around C$ 416, however they can be found for as little as C$ 260.

  • Where does the fastest flight to St. Louis depart from?

    For those looking to save time traveling to St. Louis, Toronto offers the quickest one-way flight (2 hours 6 minutes).

  • Does Lambert-St Louis have rental cars?

    Yes. Those touching down at Lambert-St Louis can take advantage of the rental car services offered upon their arrival.

  • Are there hotels close to Lambert-St Louis?

    Yes. Lambert-St Louis has hotels nearby for those requiring accommodations. Hampton Inn St. Louis-Airport is the closest property to Lambert-St Louis (0.0 km away from Lambert-St Louis).

See more FAQs

Travelling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Peters
Chesterfield

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