HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Charleston

$178+ 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 1/22. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — CHS
Dec 27 — Jan 31
Fri 12/27
Fri 1/3
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

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.

The best prices from Ontario to Charleston are usually found in January or September, booked 32 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 December 22, 2024.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$256
(American Airlines)

One-way from

$178
(United Airlines)

Popular in

November

Cheapest in

January

Average price

$566
Provider with most accurate pricing for Ontario-Charleston flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ontario-Charleston flights.
Search Deals
From Ontario to Charleston
Search Deals
One-way flight from Ontario to Charleston
Search Deals
High demand for flights, 13% potential price rise
Search Deals
Best time to find cheap flights, 3% potential price drop
Search Deals
Average for round-trip flights in December 2024
Search Deals

Find flight deals from Ontario to Charleston

Cheapest flights from Ontario to Charleston
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 December 22, 2024.

This Delta deal was found by Cheapflights users on 12/21. 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.
Sat 12/286:52 amONT - CHS
1 stop6h 48mDelta
Wed 1/16:40 amCHS - ONT
1 stop7h 06mDelta
Deal found 12/21$588
This American Airlines deal was found by Cheapflights users on 12/21. 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.
Wed 12/2510:02 amONT - CHS
2 stops11h 22mAmerican Airlines
Fri 12/276:58 amCHS - ONT
2 stops10h 00mAmerican Airlines
Deal found 12/21$910
This United Airlines deal was found by Cheapflights users on 12/20. 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.
Mon 12/306:50 pmONT - CHS
2 stops12h 45mUnited Airlines
Wed 1/16:00 amCHS - ONT
2 stops14h 53mUnited Airlines
Deal found 12/20$1,017
This Alaska Airlines deal was found by Cheapflights users on 12/21. 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.
Sat 12/286:03 pmONT - CHS
1 stop20h 50mAlaska Airlines
Tue 12/316:53 pmCHS - ONT
1 stop27h 44mAlaska Airlines
Deal found 12/21$1,243

Find flights from Ontario to Charleston within your budget

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 December 22, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

OntarioCharleston

ONT - CHS

ONTCHS

Ontario

Wed 2/12

10:56 am-10:35 pm

1 stop8h 39m

Charleston

Wed 2/19

3:55 pm-10:16 pm

1 stop9h 21m

$256

OntarioCharleston

ONT - CHS

ONTCHS

Ontario

Thu 2/6

11:33 am-5:32 pm

1 stop26h 59m

Charleston

Sun 2/9

6:32 pm-10:38 am

1 stop19h 06m

$382

OntarioCharleston

ONT - CHS

ONTCHS

Ontario

Tue 2/11

6:00 am-4:17 pm

1 stop7h 17m

Charleston

Fri 2/14

4:53 pm-9:59 pm

1 stop8h 06m

$412

OntarioCharleston

ONT - CHS

ONTCHS

Ontario

Fri 1/17

1:00 pm-11:54 pm

1 stop7h 54m

Charleston

Sun 1/19

4:50 pm-10:52 pm

1 stop9h 02m

$503

OntarioCharleston

ONT - CHS

ONTCHS

Ontario

Fri 1/3

1:20 pm-11:25 pm

1 stop7h 05m

Charleston

Tue 1/7

9:30 am-3:40 pm

1 stop9h 10m

$586

OntarioCharleston

ONT - CHS

ONTCHS

Ontario

Wed 1/22

6:00 am-4:17 pm

1 stop7h 17m

$178

OntarioCharleston

ONT - CHS

ONTCHS

Ontario

Sun 5/4

11:30 am-5:31 pm

2 stops27h 01m

$233

OntarioCharleston

ONT - CHS

ONTCHS

Ontario

Sun 1/5

11:56 am-11:58 pm

1 stop9h 02m

$339

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/21

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 December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • 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 FlightHub the most. FlightHub 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.
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 from Ontario to Charleston

Get recent, data-driven insights about flights from Ontario to Charleston including ideal travel times, pricing trends, and more.

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 December 13, 2024.

To ensure you get the cheapest price possible for a flight from Ontario to Charleston, you should look to book at least 31 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 December 22, 2024.

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 December 22, 2024.
To help decide which airline to fly from Ontario to Charleston, see what other customers have to say about Alaska Airlines, United Airlines 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.
Southwest
8.1
Very good
4,804 reviews

Overall

8.1

Boarding

8.2

Comfort

8.1

Food

7.2

Crew

8.7

Entertainment

7.7

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Southwest
8.1
Very good
4,804 reviews
Southwest
8.1
Very good
4,804 reviews

Overall

8.1

Boarding

8.2

Comfort

8.1

Food

7.2

Crew

8.7

Entertainment

7.7

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Alaska Airlines
8.0
Very good
9,537 reviews
Southwest
8.1
Very good
4,804 reviews

Overall

8.1

Boarding

8.2

Comfort

8.1

Food

7.2

Crew

8.7

Entertainment

7.7

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Delta
8.0
Very good
8,594 reviews
Southwest
8.1
Very good
4,804 reviews

Overall

8.1

Boarding

8.2

Comfort

8.1

Food

7.2

Crew

8.7

Entertainment

7.7

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

United Airlines
7.4
Good
9,028 reviews
Southwest
8.1
Very good
4,804 reviews

Overall

8.1

Boarding

8.2

Comfort

8.1

Food

7.2

Crew

8.7

Entertainment

7.7

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,804 reviews

Overall

8.1

Boarding

8.2

Comfort

8.1

Food

7.2

Crew

8.7

Entertainment

7.7

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

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.

  • What are the cheapest airlines flying from Ontario to Charleston round-trip?

    American Airlines, at $256, was found to be the cheapest airline from Ontario to Charleston.Alternate airlines to your destination round-trip include Alaska Airlines and United Airlines. Users have found that American Airlines is 46% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Ontario to Charleston one-way?

    One-way options have recently been found by users for as low as $178 on United Airlines. Other airlines that offer cheap prices include Alaska Airlines from $233 and Delta from $339 one-way.

  • Can I find deals for flights from Ontario to Charleston that include hotel bookings?

    Yes. In addition to deals on Ontario to Charleston flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Charleston?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Charleston.

  • Can I find deals for business class flights from Ontario to Charleston?

    Yes. Cheapflights offers flight deals from Ontario to Charleston by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • 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.

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.

Alternative routes for Ontario to Charleston

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Charlotte flights
San Francisco to Charlotte flights
San Francisco to Charleston flights
Ontario to Charlotte flights
Los Angeles to Charleston flights
San Diego to Charlotte flights
Santa Ana to Charlotte flights
San Francisco to Savannah flights
San Jose to Charlotte flights
Oakland to Charlotte flights
Sacramento to Charlotte flights
Los Angeles to Savannah flights
San Diego to Charleston flights
Las Vegas to Charlotte flights
San Diego to Savannah flights
Los Angeles to Greenville flights
Ontario to Greenville flights
Burbank to Charlotte flights
Los Angeles to Columbia flights
Los Angeles to Myrtle Beach flights
Ontario to Savannah flights
Santa Ana to Charleston flights
Las Vegas to Charleston flights
San Francisco to Greenville flights
San Francisco to Myrtle Beach flights
San Jose to Greenville flights
Oakland to Greenville flights
Santa Ana to Savannah flights
Las Vegas to Myrtle Beach flights
Sacramento to Charleston flights
Los Angeles to Augusta flights
Oakland to Charleston flights
Santa Ana to Augusta flights
Burbank to Myrtle Beach flights
Ontario to Columbia flights
Sacramento to Myrtle Beach flights
Sacramento to Savannah flights
Santa Ana to Greenville flights
Ontario to Myrtle Beach flights
Sacramento to Greenville flights
San Jose to Charleston flights
San Jose to Myrtle Beach flights
Fresno to Columbia flights
Palm Springs to Charlotte flights
Las Vegas to Columbia flights
San Francisco to Augusta flights
Las Vegas to Savannah flights
San Jose to Savannah flights
Santa Ana to Hilton Head Island flights

Top 5 airlines flying from Ontario to Charleston

Discover the top 5 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 December 22, 2024.
AirlineCheapestAverageFlexibilityOn-time
Breeze AirwaysCheapest$266Average$316FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$316Average$512FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$316Average$475FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$334Average$457FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$342Average$492FlexibilityNo cancel feeOn-time63%
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.