C$ 219+ 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 15/7. Fares are subject to change and may not be available on all flights or dates of travel.
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 12 June 2025.
Find flight deals to St. Charles
Cheapest flights to St. CharlesExplore the most affordable flight options available to St. Charles. Find the lowest fares based on data from user searches, with prices last updated on 12 June 2025.
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 12 June 2025.
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 12 June 2025.
Use the filters below to find and compare flights to St. Charles that are best for you.
Fly from
Route
Depart
Return
Price
TorontoSt. Louis
YYZ - STL
YYZSTL
Toronto Pearson Intl
Tue 22/7
6:30 a.m.-4:31 p.m.
1 stop11h 01m
Lambert-St Louis
Thu 24/7
10:47 a.m.-9:23 p.m.
2 stops33h 36m
TorontoSt. Louis
YYZ - STL
YYZSTL
Toronto Pearson Intl
Mon 23/6
7:25 p.m.-11:59 p.m.
1 stop5h 34m
Lambert-St Louis
Thu 26/6
6:00 a.m.-10:59 a.m.
1 stop3h 59m
TorontoSt. Louis
YYZ - STL
YYZSTL
Toronto Pearson Intl
Thu 26/6
11:30 a.m.-12:36 p.m.
Nonstop2h 06m
Lambert-St Louis
Sun 29/6
1:30 p.m.-6:25 a.m.
1 stop15h 55m
TorontoSt. Louis
YYZ - STL
YYZSTL
Toronto Pearson Intl
Thu 26/6
10:20 a.m.-3:17 p.m.
1 stop5h 57m
Lambert-St Louis
Sun 29/6
6:40 a.m.-11:18 a.m.
1 stop3h 38m
TorontoSt. Louis
YYZ - STL
YYZSTL
Toronto Pearson Intl
Thu 26/6
11:30 a.m.-12:36 p.m.
Nonstop2h 06m
Lambert-St Louis
Sun 29/6
7:30 a.m.-10:25 a.m.
Nonstop1h 55m
TorontoSt. Louis
YYZ - STL
YYZSTL
Toronto Pearson Intl
Fri 29/8
10:12 a.m.-1:20 p.m.
1 stop4h 08m
Lambert-St Louis
Sun 7/9
6:00 a.m.-6:03 p.m.
2 stops11h 03m
TorontoSt. Louis
YYZ - STL
YYZSTL
Toronto Pearson Intl
Tue 15/7
6:30 a.m.-4:31 p.m.
1 stop11h 01m
TorontoSt. Louis
YYZ - STL
YYZSTL
Toronto Pearson Intl
Thu 26/6
11:30 a.m.-12:36 p.m.
Nonstop2h 06m
TorontoSt. Louis
YYZ - STL
YYZSTL
Toronto Pearson Intl
Wed 25/6
3:45 p.m.-11:59 p.m.
1 stop9h 14m
TorontoSt. Louis
YYZ - STL
YYZSTL
Toronto Pearson Intl
Thu 26/6
8:15 a.m.-3:47 p.m.
1 stop8h 32m
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.
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 9 June 2025.
To ensure you get the cheapest price possible for a flight to St. Charles, you should look to book at least 65 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 Wednesday (4 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (3 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.
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 12 June 2025.
Read through reviews of airlines servicing St. Charles, such as Delta, United Airlines and American Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
Boarding
Comfort
Food
Overall
Crew
Reviews
Kim,May 2025
PIH - SLC
Entertainment
Boarding
Comfort
Food
Overall
Crew
Reviews
Kim,May 2025
PIH - SLC
Entertainment
Boarding
Comfort
Food
Overall
Crew
Reviews
Kim,May 2025
PIH - SLC
Entertainment
Boarding
Comfort
Food
Overall
Crew
Reviews
Kim,May 2025
PIH - SLC
Entertainment
Boarding
Comfort
Food
Overall
Crew
Reviews
Kim,May 2025
PIH - SLC
Entertainment
Boarding
Comfort
Food
Overall
Crew
Reviews
Kim,May 2025
PIH - SLC
FAQs about flying to St. Charles
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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.