Which layover airport has the shortest travel time from Ontario to Charleston?

Flights connecting via Atlanta (ATL) have the shortest average one-way travel time: 6h 18m.

Which layover airport has the shortest connection time from Ontario to Charleston?

Atlanta (ATL) has the shortest average layover time for this route: 0h 45m.

Which airport is the most popular layover for flights between Ontario and Charleston?

Atlanta (ATL) was the most common stop: 50% of momondo users choosing 1-stop flights on this route connected there.

What is the cheapest airline that flies from Ontario to Charleston?

Southwest, United Airlines, and Delta are the most popular carriers operating from Ontario to Charleston

What airlines fly to Charleston?

American Airlines, Southwest and Delta are the top three most popular airlines that fly to Charleston from Ontario according to our data. American Airlines is the first choice among our users, with 44% of people opting to fly with this airline when traveling to Charleston. Keep in mind that there are 6 different airlines that fly to Charleston on a routine basis, so you have a few additional options to choose from.

Which layover airport offers the lowest fares from Ontario to Charleston?

Flights via Denver (DEN) offer the lowest average round-trip price of $336.

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?

As of September 2026, there are 4 operators available to choose from 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.

$169 Cheap Flights from Ontario to Charleston in 2026

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Find the cheapest flights from Ontario to Charleston

Round-trip

One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

10:10 pm - 8:34 amONT Ontario-CHS Charleston

7h 24m1 stop Charlotte Douglas

4:52 pm - 10:59 pmCHS Charleston-ONT Ontario

9h 07m1 stop Charlotte Douglas

$337American Airlines

Sat, Oct 17 - Sat, Oct 24

11:10 pm - 8:43 amONT Ontario-CHS Charleston

6h 33m1 stop Atlanta Hartsfield-Jackson

6:34 am - 11:08 amCHS Charleston-ONT Ontario

7h 34m1 stop Atlanta Hartsfield-Jackson

$337Delta

Mon, Nov 9 - Thu, Nov 12

6:00 am - 4:17 pmONT Ontario-CHS Charleston

7h 17m1 stop Houston George Bush Intcntl

4:57 pm - 10:51 pmCHS Charleston-ONT Ontario

8h 54m1 stop Chicago O'Hare Intl

$337United Airlines

Tue, Oct 20 - Sat, Oct 24

12:16 pm - 11:59 pmONT Ontario-CHS Charleston

8h 43m1 stop Atlanta Hartsfield-Jackson

6:00 am - 11:06 amCHS Charleston-ONT Ontario

8h 06m1 stop Atlanta Hartsfield-Jackson

$337Delta

Sat, Oct 31 - Sat, Nov 7

8:55 am - 8:40 pmONT Ontario-CHS Charleston

8h 45m1 stop Denver Intl

1:15 pm - 8:45 pmCHS Charleston-ONT Ontario

10h 30m2 stops Dallas Love Field Las Vegas Harry Reid Intl

$342Southwest

Sat, Oct 17 - Sat, Oct 24

5:00 am - 3:07 pmONT Ontario-CHS Charleston

7h 07m1 stop Denver Intl

11:05 am - 8:58 pmCHS Charleston-ONT Ontario

12h 53m2 stops Newark Denver Intl

$342United Airlines

Tue, Oct 20 - Sat, Oct 24

11:45 pm - 8:31 amONT Ontario-CHS Charleston

6h 46m1 stop Charlotte Douglas

5:28 pm - 10:12 pmCHS Charleston-ONT Ontario

7h 44m1 stop Charlotte Douglas

$382American Airlines

Sat, Oct 31 - Sat, Nov 7

5:40 am - 6:05 pmONT Ontario-CHS Charleston

9h 25m2 stops Las Vegas Harry Reid Intl Dallas Love Field

1:15 pm - 8:45 pmCHS Charleston-ONT Ontario

10h 30m2 stops Dallas Love Field Las Vegas Harry Reid Intl

$392Southwest

Tue, Oct 20 - Sat, Oct 24

6:02 am - 5:55 pmONT Ontario-CHS Charleston

8h 53m1 stop Seattle/Tacoma Intl

6:59 pm - 11:42 pmCHS Charleston-ONT Ontario

31h 43m1 stop Seattle/Tacoma Intl

$475Alaska Airlines

Sat, Oct 17 - Wed, Oct 21

6:02 am - 5:55 pmONT Ontario-CHS Charleston

8h 53m1 stop Seattle/Tacoma Intl

5:58 pm - 11:18 amCHS Charleston-ONT Ontario

20h 20m1 stop Seattle/Tacoma Intl

$476Alaska Airlines

Sat, Oct 31 - Sat, Nov 7

Cheap last minute flights

Enter your travel dates to find the best prices.

10:39 pm - 10:17 amONT Ontario-CHS Charleston

8h 38m1 stop New York John F Kennedy Intl

11:08 am - 8:57 pmCHS Charleston-ONT Ontario

12h 49m1 stop New York John F Kennedy Intl

$787JetBlue

Sat, Sep 12 - Sat, Sep 19

3:14 pm - 6:06 pmONT Ontario-CHS Charleston

23h 52m1 stop Seattle/Tacoma Intl

7:09 pm - 11:16 amCHS Charleston-ONT Ontario

19h 07m1 stop Seattle/Tacoma Intl

$807Alaska Airlines

Wed, Sep 16 - Mon, Sep 21

6:02 am - 6:06 pmONT Ontario-CHS Charleston

9h 04m1 stop Seattle/Tacoma Intl

7:09 pm - 11:16 amCHS Charleston-ONT Ontario

19h 07m1 stop Seattle/Tacoma Intl

$807Alaska Airlines

Wed, Sep 16 - Mon, Sep 21

12:12 pm - 6:06 pmONT Ontario-CHS Charleston

26h 54m1 stop Seattle/Tacoma Intl

7:09 pm - 11:16 amCHS Charleston-ONT Ontario

19h 07m1 stop Seattle/Tacoma Intl

$807Alaska Airlines

Wed, Sep 16 - Mon, Sep 21

6:00 am - 10:48 pmONT Ontario-CHS Charleston

13h 48m1 stop Dallas/Fort Worth

6:00 am - 1:25 pmCHS Charleston-ONT Ontario

10h 25m2 stops Miami Dallas/Fort Worth

$855American Airlines

Wed, Sep 16 - Mon, Sep 21

1:18 pm - 10:37 amONT Ontario-CHS Charleston

18h 19m2 stops Denver Intl Chicago O'Hare Intl

4:58 pm - 10:59 pmCHS Charleston-ONT Ontario

9h 01m1 stop Chicago O'Hare Intl

$857United Airlines

Wed, Sep 16 - Mon, Sep 21

6:15 am - 10:48 pmONT Ontario-CHS Charleston

13h 33m2 stops Phoenix Sky Harbor Intl Dallas/Fort Worth

6:00 am - 1:25 pmCHS Charleston-ONT Ontario

10h 25m2 stops Miami Dallas/Fort Worth

$860American Airlines

Wed, Sep 16 - Mon, Sep 21

1:56 pm - 10:37 amONT Ontario-CHS Charleston

17h 41m2 stops San Francisco Chicago O'Hare Intl

11:37 am - 9:59 pmCHS Charleston-ONT Ontario

13h 22m2 stops Chicago O'Hare Intl Houston George Bush Intcntl

$862United Airlines

Wed, Sep 16 - Mon, Sep 21

1:56 pm - 10:37 amONT Ontario-CHS Charleston

17h 41m2 stops San Francisco Chicago O'Hare Intl

11:37 am - 9:59 pmCHS Charleston-ONT Ontario

13h 22m2 stops Chicago O'Hare Intl Houston George Bush Intcntl

$908United Airlines

Wed, Sep 16 - Mon, Sep 21

6:00 am - 3:40 pmONT Ontario-CHS Charleston

6h 40m1 stop Dallas/Fort Worth

6:44 am - 11:47 amCHS Charleston-ONT Ontario

8h 03m1 stop Dallas/Fort Worth

$1,007American Airlines

Wed, Sep 16 - Mon, Sep 21

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United Airlines flights from Ontario to Charleston

Our best United Airlines deals on Ontario to Charleston flight tickets

United Airlines

Dec 29

ONT11:52 pmOntario

8h 01m

1 stop

CHS10:53 amCharleston

Jan 4

CHS4:55 pmCharleston

8h 43m

1 stop

ONT10:38 pmOntario

$420

United Airlines

Oct 28

ONT5:00 amOntario

7h 06m

1 stop

CHS3:06 pmCharleston

Oct 31

CHS11:12 amCharleston

12h 39m

2 stops

ONT8:51 pmOntario

$432

United Airlines

Dec 29

ONT11:52 pmOntario

12h 07m

2 stops

CHS2:59 pmCharleston

Jan 4

CHS6:00 amCharleston

9h 42m

2 stops

ONT12:42 pmOntario

$446

Alaska Airlines flights from Ontario to Charleston

Our best Alaska Airlines deals on Ontario to Charleston flight tickets

Alaska Airlines

Oct 17

ONT6:02 amOntario

8h 53m

1 stop

CHS5:55 pmCharleston

Oct 21

CHS6:59 pmCharleston

31h 43m

1 stop

ONT11:42 pmOntario

$475

Alaska Airlines

Oct 31

ONT6:02 amOntario

8h 53m

1 stop

CHS5:55 pmCharleston

Nov 7

CHS5:58 pmCharleston

20h 20m

1 stop

ONT11:18 amOntario

$476

Alaska Airlines

Sep 22

ONT6:02 amOntario

9h 04m

1 stop

CHS6:06 pmCharleston

Oct 10

CHS6:59 pmCharleston

18h 18m

1 stop

ONT10:17 amOntario

$625

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioCharleston

ONT Ontario - CHS Charleston

ONTCHS

Ontario

Sat 10/17

10:10 pm-8:34 am

1 stop7h 24m

Charleston

Sat 10/24

4:52 pm-10:59 pm

1 stop9h 07m

$337

Quickest round-trip

OntarioCharleston

ONT Ontario - CHS Charleston

ONTCHS

Ontario

Mon 11/9

11:10 pm-8:43 am

1 stop6h 33m

Charleston

Thu 11/12

6:34 am-11:08 am

1 stop7h 34m

$337

OntarioCharleston

ONT Ontario - CHS Charleston

ONTCHS

Ontario

Tue 10/20

6:00 am-4:17 pm

1 stop7h 17m

Charleston

Sat 10/24

4:57 pm-10:51 pm

1 stop8h 54m

$337

OntarioCharleston

ONT Ontario - CHS Charleston

ONTCHS

Ontario

Sat 10/31

12:16 pm-11:59 pm

1 stop8h 43m

Charleston

Sat 11/7

6:00 am-11:06 am

1 stop8h 06m

$337

OntarioCharleston

ONT Ontario - CHS Charleston

ONTCHS

Ontario

Sat 10/17

8:55 am-8:40 pm

1 stop8h 45m

Charleston

Sat 10/24

1:15 pm-8:45 pm

2 stops10h 30m

$342

OntarioCharleston

ONT Ontario - CHS Charleston

ONTCHS

Ontario

Tue 10/20

5:00 am-3:07 pm

1 stop7h 07m

Charleston

Sat 10/24

11:05 am-8:58 pm

2 stops12h 53m

$342

OntarioCharleston

ONT Ontario - CHS Charleston

ONTCHS

Ontario

Sat 10/31

11:45 pm-8:31 am

1 stop6h 46m

Charleston

Sat 11/7

5:28 pm-10:12 pm

1 stop7h 44m

$382

OntarioCharleston

ONT Ontario - CHS Charleston

ONTCHS

Ontario

Tue 10/20

5:40 am-6:05 pm

2 stops9h 25m

Charleston

Sat 10/24

1:15 pm-8:45 pm

2 stops10h 30m

$392

OntarioCharleston

ONT Ontario - CHS Charleston

ONTCHS

Ontario

Sat 10/17

6:02 am-5:55 pm

1 stop8h 53m

Charleston

Wed 10/21

6:59 pm-11:42 pm

1 stop31h 43m

$475

OntarioCharleston

ONT Ontario - CHS Charleston

ONTCHS

Ontario

Sat 10/31

6:02 am-5:55 pm

1 stop8h 53m

Charleston

Sat 11/7

5:58 pm-11:18 am

1 stop20h 20m

$476

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Layovers

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 $386, 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 $409.

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 $238. The most expensive day to fly to Charleston is Wednesday, with ticket prices averaging around $362.

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 $338. In the evening is when there is more demand to fly to Charleston, so prices are often more expensive at around $804 per ticket.

How have Ontario to Charleston flight prices changed over time?

As of September 2026, prices for Ontario to Charleston flights are approximately 19% 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

Best Price Found	$169
Fastest flight time	6h 25m
Direct flights	None

The best one-way flight to Charleston from Ontario in the past 72 hours is $169. The best round-trip flight deal from Ontario to Charleston found on momondo in the last 72 hours is $337.

The fastest flight from Ontario to Charleston takes 6h 25m

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 6h 25m 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?
As of September 2026, there are 4 operators available to choose from 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?
Based on momondo bookings for flights between Ontario and Charleston, the leading airline is American Airlines, making up 31% of the total bookings. Other popular airlines include Southwest with 26%, Delta with 22%, and United Airlines with 21%.

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 Airlines	PriceFrom $296	Free Cancellation	Rating 7.1 12,045 reviews	Search American Airlines flights
Delta	PriceFrom $326	Free Cancellation	Rating 7.8 8,554 reviews	Search Delta flights
United Airlines	PriceFrom $336	Free Cancellation	Rating 7.4 10,194 reviews	Search United Airlines flights
Southwest	PriceFrom $384	Free Cancellation	Rating 8.0 4,195 reviews	Search Southwest flights

Folly Beach

North Charleston

Summerville

Isle of Palms

Mount Pleasant

Kiawah Island

Walterboro

Goose Creek

Edisto Island

Santee

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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Cheap flights from Ontario to Charleston from $169

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 10/19. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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United Airlines flights from Ontario to Charleston

Our best United Airlines deals on Ontario to Charleston flight tickets

Alaska Airlines flights from Ontario to Charleston

Our best Alaska Airlines deals on Ontario to Charleston flight tickets

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How to get the cheapest flight ticket from Ontario to Charleston

What is the cheapest month to fly to Charleston?

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

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

How have Ontario to Charleston flight prices changed over time?

What is the cheapest airline that flies from Ontario to Charleston?

What airlines fly to Charleston?

Which airport is the most popular layover for flights between Ontario and Charleston?

Which layover airport offers the lowest fares from Ontario to Charleston?

Which layover airport has the shortest travel time from Ontario to Charleston?

Which layover airport has the shortest connection time from Ontario to Charleston?

When to book flights from Ontario to Charleston

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

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying 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

Traveling to a place near Charleston?

Why use momondo?

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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing South Carolina

Fly your favorite airline to Charleston

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Charleston

List of cabin classes available on flights landing in Charleston. Availability may vary depending on flight origin and airline.

Popular cities in the United States

Popular flights according to clicks in the last 7 days on momondo

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According to popular flight searches on momondo this year

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