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C$ 241+ 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 25/5. Fares are subject to change and may not be available on all flights or dates of travel.
— STL
5 May — 12 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 30 April 2025.

Round-trip from

C$ 498

One-way from

C$ 241

Popular in

January

Cheapest in

November

Average price

C$ 714
10/5-12/5
  • 10/5-12/5
  • 2 total stops
  • 53h 02m total
  • Toronto to St. Louis
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25/5
  • 25/5
  • 1 total stop
  • 8h 52m total
  • Toronto to St. Charles
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Highest demand for flights based on searches. 4% potential increase in price (C$ 40 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease (C$ 10 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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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 30 April 2025.

Sat 10/56:30 a.m.YYZ - STL
1 stop27h 45mMultiple Airlines
Mon 12/59:55 p.m.STL - YYZ
1 stop25h 17mMultiple Airlines
Deal found 27/4C$ 498
Mon 23/611:30 a.m.YYZ - STL
Nonstop2h 06mUnited Airlines
Wed 25/67:30 a.m.STL - YYZ
Nonstop1h 55mUnited Airlines
Deal found 28/4C$ 561
Fri 30/59:49 a.m.YYZ - STL
1 stop4h 30mDelta
Sun 1/66:00 a.m.STL - YYZ
1 stop6h 40mDelta
Deal found 28/4C$ 568
Thu 22/511:30 a.m.YYZ - STL
Nonstop2h 06mAir Canada
Sun 25/52:30 p.m.STL - YYZ
Nonstop2h 00mAir Canada
Deal found 29/4C$ 577
Fri 5/96:24 p.m.YYZ - STL
1 stop6h 25mAmerican Airlines
Sun 7/95:29 a.m.STL - YYZ
1 stop8h 26mAmerican Airlines
Deal found 28/4C$ 580
Thu 22/56:30 a.m.YYZ - STL
1 stop4h 19mBritish Airways
Sun 25/56:12 a.m.STL - YYZ
2 stops7h 21mBritish Airways
Deal found 29/4C$ 642
Mon 23/68:00 p.m.YYZ - STL
2 stops14h 43mWestJet
Thu 26/610:48 a.m.STL - YYZ
1 stop5h 18mWestJet
Deal found 28/4C$ 684
Thu 15/55:29 p.m.YYZ - STL
1 stop5h 59mWestJet Encore
Mon 19/56:00 p.m.STL - YYZ
1 stop19h 33mWestJet Encore
Deal found 28/4C$ 803
Wed 28/54:45 p.m.YYZ - STL
2 stops26h 36mAlaska Airlines
Wed 4/66:00 a.m.STL - YYZ
2 stops32h 00mAlaska Airlines
Deal found 28/4C$ 1,073

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 30 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

Sat 10/5

6:30 a.m.-9:15 a.m.

1 stop27h 45m

Lambert-St Louis

Mon 12/5

9:55 p.m.-12:12 a.m.

1 stop25h 17m

C$ 498

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Mon 23/6

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

Nonstop2h 06m

Lambert-St Louis

Wed 25/6

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

Nonstop1h 55m

C$ 561

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Fri 30/5

9:49 a.m.-1:19 p.m.

1 stop4h 30m

Lambert-St Louis

Sun 1/6

6:00 a.m.-1:40 p.m.

1 stop6h 40m

C$ 568

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

2:30 p.m.-5:30 p.m.

Nonstop2h 00m

C$ 577

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Fri 5/9

6:24 p.m.-11:49 p.m.

1 stop6h 25m

Lambert-St Louis

Sun 7/9

5:29 a.m.-2:55 p.m.

1 stop8h 26m

C$ 580

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Thu 22/5

6:30 a.m.-9:49 a.m.

1 stop4h 19m

Lambert-St Louis

Sun 25/5

6:12 a.m.-2:33 p.m.

2 stops7h 21m

C$ 642

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Mon 23/6

8:00 p.m.-9:43 a.m.

2 stops14h 43m

Lambert-St Louis

Thu 26/6

10:48 a.m.-5:06 p.m.

1 stop5h 18m

C$ 684

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Thu 15/5

5:29 p.m.-10:28 p.m.

1 stop5h 59m

Lambert-St Louis

Mon 19/5

6:00 p.m.-2:33 p.m.

1 stop19h 33m

C$ 803

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Tue 27/5

4:45 p.m.-7:29 p.m.

2 stops27h 44m

Lambert-St Louis

Tue 3/6

6:18 p.m.-10:51 a.m.

2 stops15h 33m

C$ 1,030

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Sun 25/5

4:00 p.m.-11:52 p.m.

1 stop8h 52m

C$ 241

Flights are sorted by cheapest round-trip flights first.

Deals found on 28/4

Showing 1-10 of 13 results
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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 25 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.

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 30 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
9,961 reviews
Check prices

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
9,961 reviews
Alaska Airlines
8.0
Very good
9,961 reviews
Check prices

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,929 reviews
Alaska Airlines
8.0
Very good
9,961 reviews
Check prices

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,696 reviews
Alaska Airlines
8.0
Very good
9,961 reviews
Check prices

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,961 reviews
Check prices

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
WestJet
7.2
Good
2,826 reviews
Alaska Airlines
8.0
Very good
9,961 reviews
Check prices

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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$ 342, 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

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