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Cheap flights from Ontario to Charleston from $156

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 10/18. 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

Alaska Airlines Logo
11:39 am - 5:17 pmONT-CHS
26h 38m1 stop
Alaska Airlines Logo
6:17 pm - 10:44 amCHS-ONT
19h 27m1 stop
$324Alaska Airlines
Find Deal
Tue, Sep 16 - Wed, Sep 24
American Airlines Logo
12:46 pm - 10:02 pmONT-CHS
6h 16m1 stop
American Airlines Logo
7:06 am - 11:52 amCHS-ONT
7h 46m1 stop
$325American Airlines
Find Deal
Wed, Aug 20 - Wed, Aug 27
Delta Logo
10:29 pm - 8:50 amONT-CHS
7h 21m1 stop
Delta Logo
6:00 am - 10:26 amCHS-ONT
7h 26m1 stop
$351Delta
Find Deal
Wed, Oct 15 - Sat, Oct 18
JetBlue Logo
10:56 pm - 10:25 amONT-CHS
8h 29m1 stop
JetBlue Logo
11:10 am - 9:29 pmCHS-ONT
13h 19m1 stop
$362JetBlue
Find Deal
Sat, Oct 18 - Tue, Oct 21
JetBlue Logo
10:56 pm - 10:25 amONT-CHS
8h 29m1 stop
JetBlue Logo
11:10 am - 9:29 pmCHS-ONT
13h 19m1 stop
$372JetBlue
Find Deal
Sun, Sep 14 - Thu, Sep 18
Delta Logo
11:45 am - 11:51 pmONT-CHS
9h 06m1 stop
Delta Logo
5:15 am - 10:35 amCHS-ONT
8h 20m1 stop
$375Delta
Find Deal
Fri, Aug 22 - Fri, Aug 29
Southwest Logo
8:50 am - 10:00 pmONT-CHS
10h 10m2 stops
Southwest Logo
7:10 am - 1:20 pmCHS-ONT
9h 10m2 stops
$381Southwest
Find Deal
Fri, Sep 19 - Tue, Sep 23
Southwest Logo
6:20 am - 10:40 pmONT-CHS
13h 20m2 stops
Southwest Logo
6:25 am - 10:35 amCHS-ONT
7h 10m1 stop
$382Southwest
Find Deal
Thu, Aug 28 - Sat, Aug 30
United Airlines Logo
5:10 am - 3:10 pmONT-CHS
7h 00m1 stop
United Airlines Logo
5:16 pm - 9:25 pmCHS-ONT
7h 09m1 stop
$425United Airlines
Find Deal
Tue, Aug 19 - Wed, Aug 27
United Airlines Logo
5:05 am - 3:28 pmONT-CHS
7h 23m1 stop
United Airlines Logo
4:12 pm - 8:43 pmCHS-ONT
7h 31m1 stop
$427United Airlines
Find Deal
Mon, Aug 18 - Mon, Aug 25

Alaska Airlines flights from Ontario to Charleston

Our best Alaska Airlines deals on Ontario to Charleston flight tickets
Alaska Airlines
Sep 16
ONT11:39 amOntario
26h 38m
1 stop
CHS5:17 pmCharleston
Sep 24
CHS6:17 pmCharleston
19h 27m
1 stop
ONT10:44 amOntario
$324
Find similar
Alaska Airlines
Sep 19
ONT7:40 pmOntario
18h 37m
1 stop
CHS5:17 pmCharleston
Sep 23
CHS6:17 pmCharleston
19h 27m
1 stop
ONT10:44 amOntario
$350
Find similar
Alaska Airlines
Oct 3
ONT7:47 pmOntario
19h 30m
1 stop
CHS6:17 pmCharleston
Oct 14
CHS7:23 pmCharleston
20h 14m
1 stop
ONT12:37 pmOntario
$402
Find similar

United Airlines flights from Ontario to Charleston

Our best United Airlines deals on Ontario to Charleston flight tickets
United Airlines
Aug 19
ONT5:10 amOntario
7h 00m
1 stop
CHS3:10 pmCharleston
Aug 27
CHS5:16 pmCharleston
7h 09m
1 stop
ONT9:25 pmOntario
$425
Find similar
United Airlines
Aug 18
ONT5:05 amOntario
7h 23m
1 stop
CHS3:28 pmCharleston
Aug 25
CHS4:12 pmCharleston
7h 31m
1 stop
ONT8:43 pmOntario
$427
Find similar
United Airlines
Aug 18
ONT6:31 pmOntario
11h 49m
2 stops
CHS9:20 amCharleston
Aug 25
CHS4:12 pmCharleston
7h 31m
1 stop
ONT8:43 pmOntario
$432
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 July 31, 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 9/16

11:39 am-5:17 pm

1 stop26h 38m

Charleston

Wed 9/24

6:17 pm-10:44 am

1 stop19h 27m

$324

OntarioCharleston

ONT - CHS

ONTCHS

Ontario

Wed 8/20

12:46 pm-10:02 pm

1 stop6h 16m

Charleston

Wed 8/27

7:06 am-11:52 am

1 stop7h 46m

$325

OntarioCharleston

ONT - CHS

ONTCHS

Ontario

Wed 10/15

10:29 pm-8:50 am

1 stop7h 21m

Charleston

Sat 10/18

6:00 am-10:26 am

1 stop7h 26m

$351

OntarioCharleston

ONT - CHS

ONTCHS

Ontario

Sat 10/18

10:56 pm-10:25 am

1 stop8h 29m

Charleston

Tue 10/21

11:10 am-9:29 pm

1 stop13h 19m

$362

OntarioCharleston

ONT - CHS

ONTCHS

Ontario

Sun 9/14

10:56 pm-10:25 am

1 stop8h 29m

Charleston

Thu 9/18

11:10 am-9:29 pm

1 stop13h 19m

$372

OntarioCharleston

ONT - CHS

ONTCHS

Ontario

Fri 8/22

11:45 am-11:51 pm

1 stop9h 06m

Charleston

Fri 8/29

5:15 am-10:35 am

1 stop8h 20m

$375

OntarioCharleston

ONT - CHS

ONTCHS

Ontario

Fri 9/19

8:50 am-10:00 pm

2 stops10h 10m

Charleston

Tue 9/23

7:10 am-1:20 pm

2 stops9h 10m

$381

OntarioCharleston

ONT - CHS

ONTCHS

Ontario

Thu 8/28

6:20 am-10:40 pm

2 stops13h 20m

Charleston

Sat 8/30

6:25 am-10:35 am

1 stop7h 10m

$382

OntarioCharleston

ONT - CHS

ONTCHS

Ontario

Tue 8/19

5:10 am-3:10 pm

1 stop7h 00m

Charleston

Wed 8/27

5:16 pm-9:25 pm

1 stop7h 09m

$425

OntarioCharleston

ONT - CHS

ONTCHS

Ontario

Mon 8/18

5:05 am-3:28 pm

1 stop7h 23m

Charleston

Mon 8/25

4:12 pm-8:43 pm

1 stop7h 31m

$427

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 January. Flight prices, which tend to average around $328, are often lower during this time because this is during the off-season. The month of September is another great option to travel to Charleston, with average flight prices from Ontario averaging around $342.

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 $217. The most expensive day to fly to Charleston is Tuesday, with ticket prices averaging around $298.

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 $423 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 July 2025, prices for Ontario to Charleston flights are approximately 30% 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

Best Price Found

$156

Fastest flight time

6h 08m

Direct flights

None

Airports in Charleston

1 airport
The best one-way flight to Charleston from Ontario in the past 72 hours is $156. The best round-trip flight deal from Ontario to Charleston found on momondo in the last 72 hours is $324.
The fastest flight from Ontario to Charleston takes 6h 08m
There are no direct flights from Ontario to Charleston. Popular non-direct route for this connection is Ontario Airport - Charleston Airport.
There is 1 airport near Charleston: Charleston (CHS)
Search flight deals

  • How far is Ontario to Charleston by plane?

    Charleston is 2163.2 mi away from Ontario. Typically, this will take 6h 08m 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
8,900 reviews
Search United Airlines flights
American AirlinesPriceFrom $270Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $296Free CancellationRating
8.0
7,981 reviews
Search Delta flights
SouthwestPriceFrom $341Free CancellationRating
8.0
4,246 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
Mount Pleasant
Summerville
Edisto Island
Walterboro
Edisto Beach
Goose Creek
Santee
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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