$136+ Cheap flights from Ontario to Charleston (ONT - CHS)
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 7/29. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from Ontario to Charleston with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Ontario to Charleston are usually found in June or January, booked 8 days in advance, depart on a Saturday or Tuesday and return on a Wednesday
Cheap flight deals from Ontario to Charleston
Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Charleston (CHS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 12, 2025.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | Priceline 3 stars |
Round-trip from | $271 (United Airlines) |
One-way from | $136 (American Airlines) |
Popular in | November |
Cheapest in | June |
Average price | $362 |
Find flight deals from Ontario to Charleston
Cheapest flights from Ontario to CharlestonExplore the most affordable flight options available from Ontario to Charleston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 12, 2025.
Explore the most affordable flight options available from Ontario to Charleston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 12, 2025.
This United Airlines deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This American Airlines deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Delta deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Alaska Airlines deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Southwest deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Cheapflights Fare Finder
Customize your flight search to find flights from Ontario to Charleston that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 12, 2025.
Use the filters below to find and compare flights from Ontario to Charleston that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
OntarioCharleston
ONT - CHS
ONTCHS
Ontario
Tue 5/27
5:10 am-3:15 pm
1 stop7h 05m
Charleston
Sat 5/31
4:45 pm-10:26 pm
1 stop8h 41m
OntarioCharleston
ONT - CHS
ONTCHS
Ontario
Tue 5/20
12:45 pm-10:50 pm
1 stop7h 05m
Charleston
Tue 5/27
3:10 pm-9:05 pm
1 stop8h 55m
OntarioCharleston
ONT - CHS
ONTCHS
Ontario
Sun 6/8
10:05 pm-9:39 am
1 stop8h 34m
Charleston
Wed 6/11
6:16 pm-10:25 pm
1 stop7h 09m
OntarioCharleston
ONT - CHS
ONTCHS
Ontario
Mon 7/7
10:45 am-11:20 pm
2 stops9h 35m
Charleston
Fri 7/11
7:05 am-3:25 pm
2 stops11h 20m
OntarioCharleston
ONT - CHS
ONTCHS
Ontario
Fri 5/30
6:00 am-5:51 pm
1 stop8h 51m
Charleston
Wed 6/4
6:56 pm-9:17 am
2 stops17h 21m
OntarioCharleston
ONT - CHS
ONTCHS
Ontario
Tue 7/29
6:10 am-6:17 pm
1 stop9h 07m
OntarioCharleston
ONT - CHS
ONTCHS
Ontario
Tue 7/8
10:05 pm-8:40 am
1 stop7h 35m
OntarioCharleston
ONT - CHS
ONTCHS
Ontario
Fri 6/13
6:32 pm-10:14 am
2 stops12h 42m
OntarioCharleston
ONT - CHS
ONTCHS
Ontario
Tue 5/27
6:00 am-5:51 pm
1 stop8h 51m
Compare providers for flights from Ontario to Charleston
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Charleston in May.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy2 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Ontario-Charleston flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Charleston flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Charleston flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Ontario-Charleston flights, Cheapflights users trust Priceline the most. Priceline has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Charleston flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Ontario to Charleston
Have a flexible travel schedule? Discover the best time to fly to Charleston from Ontario with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Ontario to Charleston
How far ahead should I book a flight from Ontario to Charleston?
Use this chart to determine the optimal time to book a round-trip flight from Ontario to Charleston. Price data was last updated on May 9, 2025.
To ensure you get the cheapest price possible for a flight from Ontario to Charleston, you should look to book at least 8 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.
What is the cheapest month to book a flight from Ontario to Charleston?
Currently, August is the cheapest month in which you can book a flight from Ontario to Charleston (average of $217). Flying from Ontario to Charleston in March is currently the most expensive (average of $335). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from ONT to CHS?
Find hourly flight availability from Ontario to Charleston. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 12, 2025.
One of the essential ways to save on airfare from Ontario to Charleston is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the afternoon could potentially save you up to 5% on airfare.
Rainfall in Charleston by month
Plan your trip to Charleston by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Charleston ranges from 2.4 - 7.2 inches per month. August is typically the wettest month, when rainfall can reach 7.2 in. November is typically the driest time to visit Charleston when rainfall is around 2.4 in.
Temperature in Charleston by month
Plan your trip to Charleston by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Charleston, 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 82.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 48.2 F).
Reviews of airlines servicing Charleston
Get insights into the airlines that provide service to Charleston. 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 Charleston. Reviews last updated May 12, 2025.
To help decide which airline to fly from Ontario to Charleston, see what other customers have to say about Alaska Airlines, Southwest and Delta. 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.
Crew
Entertainment
Food
Boarding
Comfort
Overall
Reviews
James,Apr 2025
LAX - SFO
Crew
Entertainment
Food
Boarding
Comfort
Overall
Reviews
James,Apr 2025
LAX - SFO
Crew
Entertainment
Food
Boarding
Comfort
Overall
Reviews
James,Apr 2025
LAX - SFO
Crew
Entertainment
Food
Boarding
Comfort
Overall
Reviews
James,Apr 2025
LAX - SFO
Crew
Entertainment
Food
Boarding
Comfort
Overall
Reviews
James,Apr 2025
LAX - SFO
Crew
Entertainment
Food
Boarding
Comfort
Overall
Reviews
James,Apr 2025
LAX - SFO
Related info for your journey
Find useful and relevant information for your journey from Ontario to Charleston. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Ontario to Charleston
See prices for flight routes from nearby airports that may be better suited for you.
Top 4 airlines flying from Ontario to Charleston
Discover the top 4 airlines that operate flights from Ontario to Charleston. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 12, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$256 | Average$397 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$268 | Average$411 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$296 | Average$354 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$341 | Average$417 | FlexibilityNo cancel fee | On-time63% |