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Cheap flights from Ontario to Charleston from $133

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Charleston departing on 6/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Ontario to Charleston

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
11:59 pm - 2:10 pm
ONT
-
CHS
11h 11m
2 stops
American Airlines Logo
6:00 am - 1:18 pm
CHS
-
ONT
10h 18m
2 stops
$288American Airlines
Tue, May 12 - Tue, May 19
American Airlines Logo
11:59 pm - 2:10 pm
ONT
-
CHS
11h 11m
2 stops
American Airlines Logo
4:25 pm - 8:27 pm
CHS
-
ONT
7h 02m
1 stop
$295American Airlines
Tue, May 12 - Tue, May 19
American Airlines Logo
11:59 pm - 2:10 pm
ONT
-
CHS
11h 11m
2 stops
American Airlines Logo
6:00 am - 1:18 pm
CHS
-
ONT
10h 18m
2 stops
$296American Airlines
Tue, May 12 - Tue, May 19
Delta Logo
12:08 pm - 11:59 pm
ONT
-
CHS
8h 51m
1 stop
Delta Logo
3:12 pm - 9:48 pm
CHS
-
ONT
9h 36m
1 stop
$297Delta
Tue, May 12 - Tue, May 19
Delta Logo
10:00 pm - 9:40 am
ONT
-
CHS
8h 40m
1 stop
Delta Logo
3:00 pm - 6:36 pm
CHS
-
ONT
6h 36m
1 stop
$305Delta
Sat, May 30 - Thu, Jun 4
Delta Logo
12:08 pm - 9:52 pm
ONT
-
CHS
6h 44m
1 stop
Delta Logo
5:20 am - 4:17 pm
CHS
-
ONT
13h 57m
2 stops
$306Delta
Tue, May 12 - Sat, May 16
American Airlines Logo
10:26 pm - 8:31 am
ONT
-
CHS
7h 05m
1 stop
American Airlines Logo
4:25 pm - 8:27 pm
CHS
-
ONT
7h 02m
1 stop
$307American Airlines
Tue, May 12 - Tue, May 19
Delta Logo
6:45 am - 10:56 pm
ONT
-
CHS
13h 11m
2 stops
Delta Logo
7:30 am - 4:17 pm
CHS
-
ONT
11h 47m
2 stops
$311Delta
Tue, May 12 - Sat, May 16
American Airlines Logo
11:59 pm - 2:10 pm
ONT
-
CHS
11h 11m
2 stops
American Airlines Logo
7:30 pm - 11:46 pm
CHS
-
ONT
7h 16m
1 stop
$317American Airlines
Tue, May 12 - Sat, May 16
American Airlines Logo
10:26 pm - 8:31 am
ONT
-
CHS
7h 05m
1 stop
American Airlines Logo
7:30 pm - 11:46 pm
CHS
-
ONT
7h 16m
1 stop
$323American Airlines
Tue, May 12 - Fri, May 15

American Airlines flights from Ontario to Charleston

Our best American Airlines deals on Ontario to Charleston flight tickets
American Airlines
May 12
ONT11:59 pmOntario
11h 11m
2 stops
CHS2:10 pmCharleston
May 19
CHS6:00 amCharleston
10h 18m
2 stops
ONT1:18 pmOntario
$288
American Airlines
May 12
ONT11:59 pmOntario
11h 11m
2 stops
CHS2:10 pmCharleston
May 19
CHS4:25 pmCharleston
7h 02m
1 stop
ONT8:27 pmOntario
$295
American Airlines
May 12
ONT11:59 pmOntario
11h 11m
2 stops
CHS2:10 pmCharleston
May 19
CHS6:00 amCharleston
10h 18m
2 stops
ONT1:18 pmOntario
$296

Delta flights from Ontario to Charleston

Our best Delta deals on Ontario to Charleston flight tickets
Delta
May 12
ONT12:08 pmOntario
8h 51m
1 stop
CHS11:59 pmCharleston
May 19
CHS3:12 pmCharleston
9h 36m
1 stop
ONT9:48 pmOntario
$297
Delta
May 30
ONT10:00 pmOntario
8h 40m
1 stop
CHS9:40 amCharleston
Jun 4
CHS3:00 pmCharleston
6h 36m
1 stop
ONT6:36 pmOntario
$305
Delta
May 12
ONT12:08 pmOntario
6h 44m
1 stop
CHS9:52 pmCharleston
May 16
CHS5:20 amCharleston
13h 57m
2 stops
ONT4:17 pmOntario
$306

momondo 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, momondo users made 832,500 searches. Data last updated April 24, 2026.
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

Cheapest round-trip

OntarioCharleston

ONT - CHS

ONTCHS

Ontario

Tue 5/12

11:59 pm-2:10 pm

2 stops11h 11m

Charleston

Tue 5/19

6:00 am-1:18 pm

2 stops10h 18m

$288

OntarioCharleston

ONT - CHS

ONTCHS

Ontario

Tue 5/12

11:59 pm-2:10 pm

2 stops11h 11m

Charleston

Tue 5/19

4:25 pm-8:27 pm

1 stop7h 02m

$295

OntarioCharleston

ONT - CHS

ONTCHS

Ontario

Tue 5/12

11:59 pm-2:10 pm

2 stops11h 11m

Charleston

Tue 5/19

6:00 am-1:18 pm

2 stops10h 18m

$296

OntarioCharleston

ONT - CHS

ONTCHS

Ontario

Tue 5/12

12:08 pm-11:59 pm

1 stop8h 51m

Charleston

Tue 5/19

3:12 pm-9:48 pm

1 stop9h 36m

$297

OntarioCharleston

ONT - CHS

ONTCHS

Ontario

Sat 5/30

10:00 pm-9:40 am

1 stop8h 40m

Charleston

Thu 6/4

3:00 pm-6:36 pm

1 stop6h 36m

$305

OntarioCharleston

ONT - CHS

ONTCHS

Ontario

Tue 5/12

12:08 pm-9:52 pm

1 stop6h 44m

Charleston

Sat 5/16

5:20 am-4:17 pm

2 stops13h 57m

$306
Quickest round-trip

OntarioCharleston

ONT - CHS

ONTCHS

Ontario

Tue 5/12

10:26 pm-8:31 am

1 stop7h 05m

Charleston

Tue 5/19

4:25 pm-8:27 pm

1 stop7h 02m

$307

OntarioCharleston

ONT - CHS

ONTCHS

Ontario

Tue 5/12

6:45 am-10:56 pm

2 stops13h 11m

Charleston

Sat 5/16

7:30 am-4:17 pm

2 stops11h 47m

$311

OntarioCharleston

ONT - CHS

ONTCHS

Ontario

Tue 5/12

11:59 pm-2:10 pm

2 stops11h 11m

Charleston

Sat 5/16

7:30 pm-11:46 pm

1 stop7h 16m

$317

OntarioCharleston

ONT - CHS

ONTCHS

Ontario

Tue 5/12

10:26 pm-8:31 am

1 stop7h 05m

Charleston

Fri 5/15

7:30 pm-11:46 pm

1 stop7h 16m

$323

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Charleston from

How to get the cheapest flight ticket from Ontario to Charleston

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Ontario and Charleston?

What is the cheapest month to fly to Charleston?

The cheapest month to fly to Charleston from Ontario is in August. Flight prices, which tend to average around $324, are often lower during this time because this is during the off-season. The month of May is another great option to travel to Charleston, with average flight prices from Ontario averaging around $368.

What is the cheapest day to depart on your flight to Charleston?

The cheapest day to depart from Ontario to Charleston is on a Thursday. Travelers who choose to depart for Charleston on a Thursday will often find tickets for as low as $218. The most expensive day to fly to Charleston is Tuesday, with ticket prices averaging around $256.

What is the cheapest time of day to depart on your flight to Charleston?

The cheapest time of day to fly to Charleston is in the morning when flights can be purchased for as low as $236. In the evening is when there is more demand to fly to Charleston, so prices are often more expensive at around $241 per ticket.

How have Ontario to Charleston flight prices changed over time?

As of April 2026, prices for Ontario to Charleston flights are approximately 25% more expensive when compared to flights at the same time last year.

When to book flights from Ontario to Charleston

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Charleston according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Ontario to Charleston (ONT to CHS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Charleston

Fastest flight time

5h 55m

Direct flights

None
The fastest flight from Ontario to Charleston takes 5h 55m
There are no direct flights from Ontario to Charleston. There are no popular flight routes from Ontario to Charleston.
Search flight deals

Frequently asked questions about flying from Ontario to Charleston

  • How far is Ontario to Charleston by plane?

    Charleston is 2163.2 mi away from Ontario. Typically, this will take 5h 55m by plane in normal conditions.

  • When did momondo last update prices for flights from Ontario Airport to Charleston Airport?

    Prices for flights from Ontario Airport to Charleston Airport were last updated today.

  • How many operators does momondo search for flights from Ontario Airport to Charleston Airport?

  • How old do you have to be to fly from Ontario Airport to Charleston Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Charleston Airport.

  • What documentation or ID do you need to fly to Charleston Airport?

    The travel and health documents required for your trip to Charleston Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Charleston Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Ontario to Charleston?

Best airlines flying from Ontario to Charleston

Compare and see reviews for airlines that fly from Ontario to Charleston with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $270Free CancellationRating
7.1
11,666 reviews
Search American Airlines flights
DeltaPriceFrom $296Free CancellationRating
7.9
8,450 reviews
Search Delta flights
United AirlinesPriceFrom $336Free CancellationRating
7.4
9,643 reviews
Search United Airlines flights
SouthwestPriceFrom $374Free CancellationRating
8.0
4,332 reviews
Search Southwest flights

Traveling to a place near Charleston?

Book flights to Charleston if you plan to visit one of these locations
Folly Beach
Isle of Palms
Summerville
Kiawah Island
North Charleston
Mount Pleasant
Edisto Island
Santee
Walterboro
Goose Creek
Edisto Beach
Seabrook Island

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Charleston?

Finding the right flight to Charleston from Ontario is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Charleston quick and easy, saving you time and money.

Can I find flights from Ontario to Charleston with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Ontario to Charleston flights to just show those with flexible booking policies.

How can momondo help me find flights from Ontario to Charleston?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Ontario to Charleston.

I’m not ready to book a flight from Ontario to Charleston right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Ontario to Charleston now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Charleston and let you know when they change.

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