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Cheap flights from Ontario to Charleston from $167

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 10/30. 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.
Delta Logo
11:36 am - 8:40 pmONT-CHS
6h 04m1 stop
Delta Logo
3:47 pm - 7:42 pmCHS-ONT
6h 55m1 stop
$337Delta
Find Deal
Sat, Nov 8 - Wed, Nov 12
Delta Logo
9:50 am - 11:59 pmONT-CHS
11h 09m2 stops
Delta Logo
6:30 am - 10:34 amCHS-ONT
7h 04m1 stop
$342Delta
Find Deal
Sat, Nov 8 - Wed, Nov 12
United Airlines Logo
6:00 am - 4:08 pmONT-CHS
7h 08m1 stop
United Airlines Logo
4:00 pm - 9:19 pmCHS-ONT
8h 19m1 stop
$379United Airlines
Find Deal
Sat, Feb 14 - Fri, Feb 20
United Airlines Logo
5:40 am - 9:17 pmONT-CHS
12h 37m2 stops
United Airlines Logo
4:00 pm - 9:19 pmCHS-ONT
8h 19m1 stop
$384United Airlines
Find Deal
Sat, Feb 14 - Fri, Feb 20
American Airlines Logo
11:59 pm - 12:12 pmONT-CHS
9h 13m2 stops
American Airlines Logo
7:00 am - 11:53 amCHS-ONT
7h 53m1 stop
$402American Airlines
Find Deal
Wed, Nov 26 - Tue, Dec 2
American Airlines Logo
11:59 pm - 12:12 pmONT-CHS
9h 13m2 stops
American Airlines Logo
6:10 am - 4:01 pmCHS-ONT
12h 51m2 stops
$404American Airlines
Find Deal
Wed, Nov 26 - Tue, Dec 2
Alaska Airlines Logo
6:00 am - 5:54 pmONT-CHS
8h 54m1 stop
Alaska Airlines Logo
6:59 pm - 3:17 pmCHS-ONT
23h 18m1 stop
$405Alaska Airlines
Find Deal
Fri, Nov 14 - Sun, Nov 16
Southwest Logo
1:05 pm - 11:30 pmONT-CHS
7h 25m1 stop
Southwest Logo
8:00 am - 5:15 pmCHS-ONT
12h 15m1 stop
$413Southwest
Find Deal
Fri, Nov 7 - Mon, Nov 10
Alaska Airlines Logo
11:30 am - 5:31 pmONT-CHS
27h 01m1 stop
Alaska Airlines Logo
6:45 pm - 6:17 pmCHS-ONT
26h 32m1 stop
$434Alaska Airlines
Find Deal
Thu, Feb 26 - Sun, Mar 1
Southwest Logo
10:35 am - 10:55 pmONT-CHS
9h 20m2 stops
Southwest Logo
7:30 am - 3:35 pmCHS-ONT
11h 05m2 stops
$457Southwest
Find Deal
Fri, Nov 7 - Mon, Nov 10

Delta flights from Ontario to Charleston

Our best Delta deals on Ontario to Charleston flight tickets
Delta
Nov 8
ONT11:36 amOntario
6h 04m
1 stop
CHS8:40 pmCharleston
Nov 12
CHS3:47 pmCharleston
6h 55m
1 stop
ONT7:42 pmOntario
$337
Find similar
Delta
Nov 8
ONT9:50 amOntario
11h 09m
2 stops
CHS11:59 pmCharleston
Nov 12
CHS6:30 amCharleston
7h 04m
1 stop
ONT10:34 amOntario
$342
Find similar
Delta
Nov 8
ONT9:50 amOntario
11h 09m
2 stops
CHS11:59 pmCharleston
Nov 12
CHS5:25 amCharleston
9h 53m
2 stops
ONT12:18 pmOntario
$347
Find similar

United Airlines flights from Ontario to Charleston

Our best United Airlines deals on Ontario to Charleston flight tickets
United Airlines
Feb 14
ONT6:00 amOntario
7h 08m
1 stop
CHS4:08 pmCharleston
Feb 20
CHS4:00 pmCharleston
8h 19m
1 stop
ONT9:19 pmOntario
$379
Find similar
United Airlines
Feb 14
ONT5:40 amOntario
12h 37m
2 stops
CHS9:17 pmCharleston
Feb 20
CHS4:00 pmCharleston
8h 19m
1 stop
ONT9:19 pmOntario
$384
Find similar
United Airlines
Dec 3
ONT6:00 amOntario
7h 24m
1 stop
CHS4:24 pmCharleston
Jan 8
CHS1:13 pmCharleston
11h 45m
2 stops
ONT9:58 pmOntario
$449
Find similar

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 October 6, 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

Sat 11/8

11:36 am-8:40 pm

1 stop6h 04m

Charleston

Wed 11/12

3:47 pm-7:42 pm

1 stop6h 55m

$337

OntarioCharleston

ONT - CHS

ONTCHS

Ontario

Sat 11/8

9:50 am-11:59 pm

2 stops11h 09m

Charleston

Wed 11/12

6:30 am-10:34 am

1 stop7h 04m

$342

OntarioCharleston

ONT - CHS

ONTCHS

Ontario

Sat 2/14

6:00 am-4:08 pm

1 stop7h 08m

Charleston

Fri 2/20

4:00 pm-9:19 pm

1 stop8h 19m

$379

OntarioCharleston

ONT - CHS

ONTCHS

Ontario

Sat 2/14

5:40 am-9:17 pm

2 stops12h 37m

Charleston

Fri 2/20

4:00 pm-9:19 pm

1 stop8h 19m

$384

OntarioCharleston

ONT - CHS

ONTCHS

Ontario

Wed 11/26

11:59 pm-12:12 pm

2 stops9h 13m

Charleston

Tue 12/2

7:00 am-11:53 am

1 stop7h 53m

$402

OntarioCharleston

ONT - CHS

ONTCHS

Ontario

Wed 11/26

11:59 pm-12:12 pm

2 stops9h 13m

Charleston

Tue 12/2

6:10 am-4:01 pm

2 stops12h 51m

$404

OntarioCharleston

ONT - CHS

ONTCHS

Ontario

Fri 11/14

6:00 am-5:54 pm

1 stop8h 54m

Charleston

Sun 11/16

6:59 pm-3:17 pm

1 stop23h 18m

$405

OntarioCharleston

ONT - CHS

ONTCHS

Ontario

Fri 11/7

1:05 pm-11:30 pm

1 stop7h 25m

Charleston

Mon 11/10

8:00 am-5:15 pm

1 stop12h 15m

$413

OntarioCharleston

ONT - CHS

ONTCHS

Ontario

Thu 2/26

11:30 am-5:31 pm

1 stop27h 01m

Charleston

Sun 3/1

6:45 pm-6:17 pm

1 stop26h 32m

$434

OntarioCharleston

ONT - CHS

ONTCHS

Ontario

Fri 11/7

10:35 am-10:55 pm

2 stops9h 20m

Charleston

Mon 11/10

7:30 am-3:35 pm

2 stops11h 05m

$457

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 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 January is another great option to travel to Charleston, with average flight prices from Ontario averaging around $349.

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

The cheapest day to depart from Ontario to Charleston is on a Saturday. Travelers who choose to depart for Charleston on a Saturday will often find tickets for as low as $218. The most expensive day to fly to Charleston is Sunday, with ticket prices averaging around $355.

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 afternoon when flights can be purchased for as low as $220. At noon is when there is more demand to fly to Charleston, so prices are often more expensive at around $402 per ticket.

How far in advance should I book a flight to Charleston?

You are more likely to see cheaper flights to Charleston from Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to Charleston for around $419 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Charleston from Ontario for as low as $324 on momondo.

How have Ontario to Charleston flight prices changed over time?

As of October 2025, prices for Ontario to Charleston flights are approximately 1% 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

Direct flights

None
There are no direct flights from Ontario to Charleston. There are no popular flight routes from Ontario to Charleston.
Search flight deals

  • How far is Ontario to Charleston by plane?

    Charleston is 2163.2 mi away from Ontario. Typically, this will take 6h 04m 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
United AirlinesPriceFrom $256Free CancellationRating
7.4
8,953 reviews
Search United Airlines flights
American AirlinesPriceFrom $268Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $296Free CancellationRating
7.9
7,969 reviews
Search Delta flights
SouthwestPriceFrom $359Free CancellationRating
8.0
4,237 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
North Charleston
Kiawah Island
Summerville
Mount Pleasant
Edisto Island
Walterboro
Santee
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.

An easier way to manage your Charleston trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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