Find flights
Deals
Airlines

C$ 213+ Cheap flights to St. Charles

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 7/5. Fares are subject to change and may not be available on all flights or dates of travel.
— STL
29 Apr — 6 May1
1 adult

Flights to St. Charles in 2025

Find the latest flights to St. Charles 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 24 April 2025.

Round-trip from

C$ 510

One-way from

C$ 213

Popular in

January

Cheapest in

November

Average price

C$ 715
12/5-16/5
  • 12/5-16/5
  • 3 total stops
  • 19h 24m total
  • Toronto to St. Louis
Search Deals
7/5
  • 7/5
  • 1 total stop
  • 9h 06m total
  • Toronto to St. Charles
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (C$ 36 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

Find flight deals to St. Charles

Cheapest flights to St. Charles
Explore the most affordable flight options available to St. Charles. Find the lowest fares based on data from user searches, with prices last updated on 24 April 2025.

Mon 12/54:00 p.m.YYZ - STL
1 stop9h 06mMultiple Airlines
Fri 16/59:50 a.m.STL - YYZ
2 stops10h 18mMultiple Airlines
Deal found 23/4C$ 510
Thu 22/511:30 a.m.YYZ - STL
Nonstop2h 06mAir Canada
Tue 27/53:35 p.m.STL - YYZ
1 stop4h 09mAir Canada
Deal found 23/4C$ 511
Thu 22/511:30 a.m.YYZ - STL
1 stop7h 31mDelta
Sun 25/56:00 a.m.STL - YYZ
1 stop4h 40mDelta
Deal found 23/4C$ 518
Sat 7/64:30 p.m.YYZ - STL
2 stops7h 15mUnited Airlines
Sat 14/69:50 a.m.STL - YYZ
1 stop4h 56mUnited Airlines
Deal found 23/4C$ 569
Tue 13/510:35 a.m.YYZ - STL
1 stop9h 40mAmerican Airlines
Mon 19/56:00 a.m.STL - YYZ
1 stop7h 30mAmerican Airlines
Deal found 23/4C$ 589
Tue 3/612:00 p.m.YYZ - STL
2 stops12h 26mWestJet
Tue 10/66:40 a.m.STL - YYZ
1 stop3h 40mWestJet
Deal found 23/4C$ 662
Thu 29/54:45 p.m.YYZ - STL
2 stops23h 42mAlaska Airlines
Tue 3/65:00 a.m.STL - YYZ
2 stops33h 00mAlaska Airlines
Deal found 23/4C$ 1,061
Wed 23/47:20 a.m.YYZ - STL
1 stop14h 27mWestJet Encore
Fri 25/412:03 p.m.STL - YYZ
1 stop9h 57mWestJet Encore
Deal found 22/4C$ 1,065

Cheapflights Fare Finder

Locate flights to St. Charles 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 24 April 2025.
Use the filters below to find and compare flights to St. Charles that are best for you.

Fly from

Toronto

Route

Depart

Return

Price

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Tue 13/5

3:10 p.m.-9:52 p.m.

1 stop7h 42m

Lambert-St Louis

Fri 16/5

5:00 a.m.-10:51 a.m.

1 stop4h 51m

C$ 507

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Thu 22/5

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

Nonstop2h 06m

Lambert-St Louis

Sun 25/5

8:10 a.m.-1:42 p.m.

1 stop4h 32m

C$ 511

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Mon 19/5

4:00 p.m.-12:06 a.m.

1 stop9h 06m

Lambert-St Louis

Fri 23/5

3:30 p.m.-5:33 p.m.

2 stops25h 03m

C$ 514

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Thu 22/5

11:30 a.m.-6:01 p.m.

1 stop7h 31m

Lambert-St Louis

Sun 25/5

6:00 a.m.-11:40 a.m.

1 stop4h 40m

C$ 518

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Fri 6/6

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

Nonstop2h 06m

Lambert-St Louis

Fri 13/6

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

Nonstop1h 55m

C$ 562

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Wed 21/5

8:00 a.m.-5:00 p.m.

2 stops10h 00m

Lambert-St Louis

Tue 27/5

6:00 a.m.-6:04 p.m.

2 stops11h 04m

C$ 643

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Fri 6/6

4:45 p.m.-8:08 a.m.

2 stops16h 23m

Lambert-St Louis

Fri 13/6

5:29 p.m.-3:00 p.m.

2 stops20h 31m

C$ 1,076

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Wed 7/5

4:00 p.m.-12:06 a.m.

1 stop9h 06m

C$ 213

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Thu 15/5

3:10 p.m.-9:52 p.m.

1 stop7h 42m

C$ 260

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Sat 7/6

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

Nonstop2h 06m

C$ 266

Flights are sorted by cheapest round-trip flights first.

Deals found on 22/4

Showing 1-10 of 13 results
1
2

Best time to book a flight to St. Charles

Have a flexible travel schedule? Discover the best time to fly to St. Charles 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 Insights

Everything you need to know about your flight to St. Charles

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

Use this chart to determine the optimal time to book a round-trip flight from Toronto to St. Charles. Price data was last updated on 18 April 2025.

To ensure you get the cheapest price possible for a flight to St. Charles, you should look to book at least 46 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

How long is the flight to St. Charles?

On average, a flight from Toronto to St. Charles takes 2 hours 3 minutes. Flights to St. Charles from other popular cities in Canada will vary in length. Below are a few examples of popular routes and their flight times.

Weekly flight availability to St. Charles

The most flights from Toronto to St. Charles are scheduled on a Monday (2 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (1 on average).

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

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

Air Canada

Air Canada

From C$ 370

United Airlines

United Airlines

From C$ 408

WestJet

WestJet

From C$ 441

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

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

Rainfall in St. Charles by month

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

In terms of precipitation, rainfall in St. Charles 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. Charles when rainfall is around 56.0 mm.

Temperature in St. Charles by month

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

If weather is an important factor for your trip to St. Charles, 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. Charles

Get insights into the airlines that provide service to St. Charles. 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. Charles. Reviews last updated 24 April 2025.
Read through reviews of airlines servicing St. Charles, such as Alaska Airlines, Delta and United Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,918 reviews
Check prices

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.1

Boarding

8.2

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Alaska Airlines
8.0
Very good
9,918 reviews
Alaska Airlines
8.0
Very good
9,918 reviews
Check prices

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.1

Boarding

8.2

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Delta
8.0
Very good
7,920 reviews
Alaska Airlines
8.0
Very good
9,918 reviews
Check prices

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.1

Boarding

8.2

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
United Airlines
7.4
Good
8,685 reviews
Alaska Airlines
8.0
Very good
9,918 reviews
Check prices

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.1

Boarding

8.2

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,918 reviews
Check prices

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.1

Boarding

8.2

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
WestJet
7.2
Good
2,816 reviews
Alaska Airlines
8.0
Very good
9,918 reviews
Check prices

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.1

Boarding

8.2

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

FAQs about flying to St. Charles

  • Can I find cheaper flights to St. Charles 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. Charles on Cheapflights that require 1 or 2 stops for potential cost savings.

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

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

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

    A round-trip flight to St. Charles will typically cost around C$ 299, however they can be found for as little as C$ 112.

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

    For those looking to save time traveling to St. Charles, Toronto offers the quickest one-way flight (2 hours 3 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

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.

Search flights to St. Charles by cabin class

Find flights to St. Charles, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Prem Econ Class
Economy Class

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights to St. Charles?

Cheapflights helps you search for flights to St. Charles via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets to St. Charles?

Cheapflights helps you find that perfect flight to St. Charles by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights to St. Charles with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights to St. Charles flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights to St. Charles become cheaper?

Yes, Cheapflights offers price alerts on St. Charles flights so you can book your flight when prices are ideal. Enable price alerts by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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.