CHS - ONT

$198 Find Cheap Flights from Charleston to Ontario - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Charleston to Ontario departing on 8/20. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$333
Typical prices: $306-$506
American Airlines
Wed 11/11Mon 11/16
CHS - ONT • 1 stop
Cheapest one-way
$198
Overall average: $218
Delta
Thu 8/20
CHS - ONT • 1 stop
Top airlines
Cheapest • from $333 (round-trip)
Best reviews • 7.8 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Charleston and Ontario. You'll need at least 1 connection.
Insights
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Top layover airports
Cheapest • Avg $249 (round-trip)
Shortest trip • 6h 39m (one-way)
Insights
Insights
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Insights
When to travel
Cheapest • 44% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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We hope you love your trip to Ontario!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Charleston to Ontario (CHS-ONT)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Charleston to Ontario that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Charleston to Ontario

Wed, Nov 11 - Mon, Nov 16
American Airlines Logo
3:34 pm - 10:12 pm
CHS
-
ONT
9h 38m
1 stop
American Airlines Logo
11:59 pm - 12:16 pm
ONT
-
CHS
9h 17m
1 stop
$333American Airlines
Wed, Nov 11 - Mon, Nov 16
American Airlines Logo
3:34 pm - 10:12 pm
CHS
-
ONT
9h 38m
1 stop
American Airlines Logo
10:30 pm - 9:48 am
ONT
-
CHS
8h 18m
1 stop
$333American Airlines
Wed, Nov 11 - Mon, Nov 16
Delta Logo
5:55 pm - 10:14 pm
CHS
-
ONT
7h 19m
1 stop
Delta Logo
10:59 pm - 9:42 am
ONT
-
CHS
7h 43m
1 stop
$333Delta
Sat, Aug 22 - Sat, Aug 29
Delta Logo
7:25 am - 10:42 am
CHS
-
ONT
6h 17m
1 stop
Delta Logo
12:00 pm - 9:51 pm
ONT
-
CHS
6h 51m
1 stop
$333Delta
Wed, Oct 21 - Wed, Oct 28
Southwest Logo
2:20 pm - 8:45 pm
CHS
-
ONT
9h 25m
1 stop
Southwest Logo
8:35 am - 7:30 pm
ONT
-
CHS
7h 55m
1 stop
$333Southwest
Mon, Aug 24 - Tue, Aug 25
Southwest Logo
4:05 pm - 10:10 pm
CHS
-
ONT
9h 05m
1 stop
Southwest Logo
7:00 am - 4:20 pm
ONT
-
CHS
6h 20m
1 stop
$333Southwest
Wed, Nov 11 - Mon, Nov 16
Delta Logo
5:20 am - 11:10 am
CHS
-
ONT
8h 50m
1 stop
Delta Logo
12:22 pm - 11:59 pm
ONT
-
CHS
8h 37m
1 stop
$333Delta
Sat, Sep 5 - Wed, Sep 9
American Airlines Logo
5:51 pm - 10:59 pm
CHS
-
ONT
8h 08m
1 stop
American Airlines Logo
12:37 pm - 10:48 pm
ONT
-
CHS
7h 11m
1 stop
$333American Airlines
Sat, Aug 29 - Wed, Sep 2
Southwest Logo
11:00 am - 2:30 pm
CHS
-
ONT
6h 30m
1 stop
Southwest Logo
11:55 pm - 10:55 am
ONT
-
CHS
8h 00m
1 stop
$333Southwest
Wed, Sep 9 - Wed, Sep 16
American Airlines Logo
6:44 am - 1:25 pm
CHS
-
ONT
9h 41m
1 stop
American Airlines Logo
6:00 am - 3:40 pm
ONT
-
CHS
6h 40m
1 stop
$339American Airlines
Booking Insights

KAYAK's insights & trends for Charleston to Ontario flights

Get data-powered insights and trends into flights from Charleston to Ontario to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Charleston to Ontario?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Charleston to Ontario departing in November.

Flight prices are typical for this route right now.

Flights to Ontario from Charleston usually cost between $296 and $814 in November.
The lowest price found in the past 5 days was $333 on Delta (Nov 11-Nov 16).

What is the cheapest month to fly from Charleston to Ontario?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Charleston to Ontario, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Charleston to Ontario is February, where tickets cost $326 (return) on average. On the other hand, the most expensive months are December and January, where the average cost of round-trip tickets is $1,617 and $1,057 respectively.

Good to know

Low season

October

Cheapest flight

$198
Best time to beat the crowds with an average 26% drop in price.
Most popular time to fly and prices are also 22% lower on average.
Flight from Charleston to Ontario

When to book flights from Charleston to Ontario

Are your dates flexible? Find out the best times to travel from Charleston to Ontario based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Charleston to Ontario

  • What is the cheapest flight from Charleston to Ontario?

    In the last 5 days, the lowest price for a flight from Charleston to Ontario was $198 for a one-way ticket and $333 for a round-trip.

  • Do I need a passport to fly between Charleston and Ontario?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which airports will I be using when flying from Charleston to Ontario?

    When flying out of Charleston you will be using Charleston. You will be landing at Ontario, also known as Ontario.

  • Which aircraft models fly most regularly from Charleston to Ontario?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Charleston to Ontario?

    oneworld, and SkyTeam are the airline alliances operating flights between Charleston and Ontario, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from Charleston to Ontario, Delta or American Airlines?

    The two airlines most popular with KAYAK users for flights from Charleston to Ontario are Delta and American Airlines. With an average price for the route of $536 and an overall rating of 7.8, Delta is the most popular choice. American Airlines is also a great choice for the route, with an average price of $417 and an overall rating of 7.1.

  • How does KAYAK find such low prices on flights from Charleston to Ontario?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Charleston to Ontario.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Charleston to Ontario?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from Charleston is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Charleston to Ontario?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ontario with an airline and back to Charleston with another airline. Booking your flights between Charleston and ONT can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Charleston to Ontario?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ontario from Charleston up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Charleston to Ontario

 
See real verified KAYAK customer reviews for airlines flying from Charleston to Ontario. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Charleston to Ontario? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.8
DeltaOverall score based on 8482 reviews
8.1Boarding
7.8Comfort
7.8Entertainment
8.5Crew
7.2Food
Airline reviews

We never made it on this flight because we missed our connection due to o delayed flight from Jackson.

2.0 MediocreAnonymous, Jul 2026
SLC - SJC
Read more Delta reviews

We never made it on this flight because we missed our connection due to o delayed flight from Jackson.

We got stuck on the tarmac taxiing after landing early so we didn’t get off the plane until an hour later than we thought we would

It was okay. We were delayed for weather reasons, but the pilots and the flight control staff figured a way around the storm and were able to get us to Los Angeles safely. Not all the staff members were polite, but the entertainment on the flight was good.

Crew was real good, flight was smooth and came in early.

Love me some Delta. One of the few airlines to recognize and support veterans. Easy boarding, flight was on time and arrived early and the flight attendants were excellent on this flight.

We sat on the runway for over an hour before departure. That was unwelcome.

Flight delayed four separate times. I’m now one hour hours late to landing.

The plane was old with small storage areas that had problems closing/latching and not enough storage for everyone, and worn, damaged seats. Service was great but feel a little unsafe on such well used planes.

The only real hiccups in the flight were things beyond Delta’s control - turbulence which delayed food service and a departure delay caused by some VIP plane which stopped all departures and landings for 30 minutes - and was never explained to us by the crew. Otherwise good flight. I would fly Delta again.

The plane was frigid, and leaked water from the ceiling all over me and my seat.

Flight was fine, but not having WiFi was a major negative

Smooth flight. From the early boarding and all were on board before departure time and arrived early in ONT. Great crew. Thank you!!!!

I was trying to take 2 one and a half hour one way trips and I experienced almost 20 delays over the course of those two trips. Only a few of them were due to weather the rest was disorganization

Amazing I love American. I’ll never fly anyone else if I can help it.

Would have thought that they would gas up plane before everyone got on board

The flights were terribly delayed and then cancelled which forced us booking another night at the hotel. Very poor management from American Airlines

American switched my flight to a 5 hour layover then cancelled my whole reservation with no notice and refused refund. Won’t fly with them again.

Everything was great except for the wifi was junk. Crew was super friendly and helpful

We sat on runway for an 1 hour because they were short handed at key west airport was not fun

It was fine. I didn't love the food but it was at least a real attempt at serving a meal, unlike my earlier flight from Nashville to Dallas.

Everything you need to know for your flight from Charleston to Ontario

Information on your arrival and departure airports