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Cheap flights from Ontario to Charleston from $126

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 2/18. 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
6:22 am - 7:02 pm
ONT
-
CHS
9h 40m2 stops
American Airlines Logo
3:45 pm - 10:49 pm
CHS
-
ONT
10h 04m1 stop
$256American Airlines
mié., feb. 11 - mar., feb. 17
American Airlines Logo
10:58 am - 10:34 pm
ONT
-
CHS
8h 36m1 stop
American Airlines Logo
7:05 am - 1:49 pm
CHS
-
ONT
9h 44m1 stop
$259American Airlines
mié., feb. 11 - mar., feb. 17
Southwest Logo
6:05 am - 7:10 pm
ONT
-
CHS
10h 05m2 stops
Southwest Logo
7:00 am - 3:10 pm
CHS
-
ONT
11h 10m2 stops
$272Southwest
mié., feb. 11 - mar., feb. 17
Delta Logo
12:39 pm - 10:08 pm
ONT
-
CHS
6h 29m1 stop
Delta Logo
6:30 am - 11:29 am
CHS
-
ONT
7h 59m1 stop
$297Delta
mié., abr. 29 - mar., may. 5
Delta Logo
10:20 pm - 9:23 am
ONT
-
CHS
8h 03m1 stop
Delta Logo
3:07 pm - 9:05 pm
CHS
-
ONT
8h 58m1 stop
$303Delta
jue., feb. 26 - mié., mar. 4
Alaska Airlines Logo
4:03 pm - 6:22 pm
ONT
-
CHS
23h 19m1 stop
Alaska Airlines Logo
7:22 pm - 8:36 pm
CHS
-
ONT
28h 14m1 stop
$305Alaska Airlines
mar., feb. 3 - vie., feb. 6
American Airlines Logo
11:59 pm - 11:39 am
ONT
-
CHS
8h 40m2 stops
American Airlines Logo
7:21 pm - 11:59 pm
CHS
-
ONT
7h 38m1 stop
$312American Airlines
jue., feb. 5 - jue., feb. 12
American Airlines Logo
7:59 pm - 8:33 am
ONT
-
CHS
9h 34m2 stops
American Airlines Logo
4:46 pm - 9:06 pm
CHS
-
ONT
7h 20m1 stop
$320American Airlines
sáb., abr. 4 - mié., abr. 8
Delta Logo
10:30 pm - 9:26 am
ONT
-
CHS
7h 56m1 stop
Delta Logo
3:20 pm - 9:05 pm
CHS
-
ONT
8h 45m1 stop
$322Delta
jue., ene. 29 - sáb., ene. 31
Alaska Airlines Logo
6:00 am - 6:22 pm
ONT
-
CHS
9h 22m1 stop
Alaska Airlines Logo
7:22 pm - 8:36 pm
CHS
-
ONT
28h 14m1 stop
$325Alaska Airlines
jue., feb. 5 - lun., feb. 9

Alaska Airlines flights from Ontario to Charleston

Our best Alaska Airlines deals on Ontario to Charleston flight tickets
Alaska Airlines
Feb 3
ONT4:03 pmOntario
23h 19m
1 stop
CHS6:22 pmCharleston
Feb 6
CHS7:22 pmCharleston
28h 14m
1 stop
ONT8:36 pmOntario
$305
Alaska Airlines
Feb 5
ONT6:00 amOntario
9h 22m
1 stop
CHS6:22 pmCharleston
Feb 9
CHS7:22 pmCharleston
28h 14m
1 stop
ONT8:36 pmOntario
$325
Alaska Airlines
Mar 11
ONT4:02 pmOntario
22h 30m
1 stop
CHS5:32 pmCharleston
Mar 16
CHS6:32 pmCharleston
31h 12m
1 stop
ONT10:44 pmOntario
$345

Delta flights from Ontario to Charleston

Our best Delta deals on Ontario to Charleston flight tickets
Delta
Apr 29
ONT12:39 pmOntario
6h 29m
1 stop
CHS10:08 pmCharleston
May 5
CHS6:30 amCharleston
7h 59m
1 stop
ONT11:29 amOntario
$297
Delta
Feb 26
ONT10:20 pmOntario
8h 03m
1 stop
CHS9:23 amCharleston
Mar 4
CHS3:07 pmCharleston
8h 58m
1 stop
ONT9:05 pmOntario
$303
Delta
Jan 29
ONT10:30 pmOntario
7h 56m
1 stop
CHS9:26 amCharleston
Jan 31
CHS3:20 pmCharleston
8h 45m
1 stop
ONT9:05 pmOntario
$322

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 enero 8, 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

OntarioCharleston

ONT - CHS

ONTCHS

Ontario

mié. 2/11

6:22 am-7:02 pm

2 stops9h 40m

Charleston

mar. 2/17

3:45 pm-10:49 pm

1 stop10h 04m

$256

OntarioCharleston

ONT - CHS

ONTCHS

Ontario

mié. 2/11

10:58 am-10:34 pm

1 stop8h 36m

Charleston

mar. 2/17

7:05 am-1:49 pm

1 stop9h 44m

$259

OntarioCharleston

ONT - CHS

ONTCHS

Ontario

mié. 2/11

6:05 am-7:10 pm

2 stops10h 05m

Charleston

mar. 2/17

7:00 am-3:10 pm

2 stops11h 10m

$272

OntarioCharleston

ONT - CHS

ONTCHS

Ontario

mié. 4/29

12:39 pm-10:08 pm

1 stop6h 29m

Charleston

mar. 5/5

6:30 am-11:29 am

1 stop7h 59m

$297

OntarioCharleston

ONT - CHS

ONTCHS

Ontario

jue. 2/26

10:20 pm-9:23 am

1 stop8h 03m

Charleston

mié. 3/4

3:07 pm-9:05 pm

1 stop8h 58m

$303

OntarioCharleston

ONT - CHS

ONTCHS

Ontario

mar. 2/3

4:03 pm-6:22 pm

1 stop23h 19m

Charleston

vie. 2/6

7:22 pm-8:36 pm

1 stop28h 14m

$305

OntarioCharleston

ONT - CHS

ONTCHS

Ontario

jue. 2/5

11:59 pm-11:39 am

2 stops8h 40m

Charleston

jue. 2/12

7:21 pm-11:59 pm

1 stop7h 38m

$312

OntarioCharleston

ONT - CHS

ONTCHS

Ontario

sáb. 4/4

7:59 pm-8:33 am

2 stops9h 34m

Charleston

mié. 4/8

4:46 pm-9:06 pm

1 stop7h 20m

$320

OntarioCharleston

ONT - CHS

ONTCHS

Ontario

jue. 1/29

10:30 pm-9:26 am

1 stop7h 56m

Charleston

sáb. 1/31

3:20 pm-9:05 pm

1 stop8h 45m

$322

OntarioCharleston

ONT - CHS

ONTCHS

Ontario

jue. 2/5

6:00 am-6:22 pm

1 stop9h 22m

Charleston

lun. 2/9

7:22 pm-8:36 pm

1 stop28h 14m

$325

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 February is another great option to travel to Charleston, with average flight prices from Ontario averaging around $336.

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 $219. The most expensive day to fly to Charleston is Tuesday, with ticket prices averaging around $266.

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 $233. In the evening is when there is more demand to fly to Charleston, so prices are often more expensive at around $256 per ticket.

How have Ontario to Charleston flight prices changed over time?

As of January 2026, prices for Ontario to Charleston flights are approximately 38% cheaper 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

6h 05m

Direct flights

None
The fastest flight from Ontario to Charleston takes 6h 05m
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 05m 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
7.2
11,095 reviews
Search American Airlines flights
United AirlinesPriceFrom $296Free CancellationRating
7.4
9,139 reviews
Search United Airlines flights
DeltaPriceFrom $296Free CancellationRating
7.9
8,025 reviews
Search Delta flights
SouthwestPriceFrom $359Free CancellationRating
8.0
4,248 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
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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