$138 Find Cheap Flights from Ontario to South Carolina - 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 Ontario to South Carolina departing on 8/18. 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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Cheap Flights from Ontario to South Carolina

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Charleston
Charleston1 stop$297
Myrtle Beach
Myrtle Beach2 stops$291
Greenville
Greenville1 stop$299
Columbia
Columbia1 stop$351
Florence
Florence2 stops$852
Charlotte
Charlotte1 stop$288
Charleston
Charleston1 stop$297
Myrtle Beach
Myrtle Beach2 stops$291
Greenville
Greenville1 stop$299
Columbia
Columbia1 stop$351
Florence
Florence2 stops$852
Charlotte
Charlotte1 stop$288

Book Cheap Ontario to South Carolina Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to South Carolina 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 Ontario to South Carolina

Tue, Aug 25 - Sat, Aug 29
United Airlines Logo
5:00 am - 3:02 pm
ONT
-
SAV
7h 02m
1 stop
United Airlines Logo
4:59 pm - 10:35 pm
SAV
-
ONT
8h 36m
1 stop
$239United Airlines
Tue, Aug 25 - Sat, Aug 29
United Airlines Logo
5:00 am - 3:02 pm
ONT
-
SAV
7h 02m
1 stop
United Airlines Logo
8:10 am - 6:12 pm
SAV
-
ONT
13h 02m
2 stops
$244United Airlines
Tue, Aug 25 - Sat, Aug 29
Southwest Logo
7:25 am - 7:35 pm
ONT
-
SAV
9h 10m
1 stop
Southwest Logo
8:15 am - 4:00 pm
SAV
-
ONT
10h 45m
2 stops
$245Southwest
Tue, Aug 25 - Sat, Aug 29
Southwest Logo
7:45 am - 7:35 pm
ONT
-
SAV
8h 50m
2 stops
Southwest Logo
8:15 am - 4:00 pm
SAV
-
ONT
10h 45m
2 stops
$250Southwest
Wed, Aug 26 - Sat, Aug 29
Frontier Logo
6:00 am - 4:26 pm
ONT
-
CLT
7h 26m
1 stop
Frontier Logo
5:21 pm - 11:50 pm
CLT
-
ONT
9h 29m
1 stop
$288Frontier
Sat, Nov 7 - Sat, Nov 14
Delta Logo
12:18 pm - 11:57 pm
ONT
-
SAV
8h 39m
1 stop
Delta Logo
12:26 pm - 6:18 pm
SAV
-
ONT
8h 52m
1 stop
$297Delta
Wed, Oct 28 - Wed, Nov 11
Delta Logo
12:18 pm - 10:48 pm
ONT
-
MYR
7h 30m
1 stop
Delta Logo
6:00 am - 11:27 am
MYR
-
ONT
8h 27m
1 stop
$297Delta
Sat, Sep 5 - Mon, Sep 7
Frontier Logo
10:59 am - 1:13 pm
ONT
-
CLT
23h 14m
1 stop
Frontier Logo
5:21 pm - 10:04 am
CLT
-
ONT
19h 43m
1 stop
$297Frontier
Sat, Aug 22 - Sat, Aug 29
American Airlines Logo
7:05 am - 4:59 pm
ONT
-
CHS
6h 54m
1 stop
American Airlines Logo
7:00 am - 11:43 am
CHS
-
ONT
7h 43m
1 stop
$298American Airlines
Sat, Aug 8 - Sat, Aug 15
American Airlines Logo
6:15 am - 11:00 pm
ONT
-
CHS
13h 45m
2 stops
American Airlines Logo
7:00 am - 11:43 am
CHS
-
ONT
7h 43m
1 stop
$325American Airlines
Booking Insights

KAYAK's insights & trends for Ontario to South Carolina flights

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

What is the cheapest month to fly from Ontario to South Carolina?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Ontario to South Carolina, 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 Ontario to South Carolina is August, when tickets cost $202 (return) on average. On the other hand, the most expensive months are July and May, when the average cost of round-trip tickets is $359 and $353 respectively.

Good to know

Low seasonFebruary
Cheapest flight$138
Best time to beat the crowds but there is an average 14% increase in price.
Most popular time to fly and prices are also 16% lower on average.
Flight from Ontario to Charleston

FAQs - booking South Carolina flights

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

    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 Ontario to South Carolina.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Ontario to South Carolina 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 Ontario to South Carolina?

    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 from Ontario to South Carolina with an airline and back with another airline.

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

    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 from Ontario to South Carolina up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to South Carolina

  • Looking for a cheap flight? 25% of our users found tickets from Ontario to the following destinations at these prices or less: Charlotte $269 one-way - $493 round-trip

Reviews of the top 4 airlines serving from Ontario to South Carolina

 
See real verified KAYAK customer reviews for airlines flying from Ontario to South Carolina. 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 Ontario to South Carolina? 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.
8.0
SouthwestOverall score based on 4249 reviews
7.5Entertainment
7.0Food
8.6Crew
8.1Boarding
8.0Comfort
Airline reviews

I think Southwest is the number one airline that anyone can fly I have flown for the first time Frontier and what a joke and their customer service United was a very strange experience I'm only sticking to Southwest from here on out for sure

10.0 Excellentkelly, Jul 2026
SFO - PHX
Read more Southwest reviews

I think Southwest is the number one airline that anyone can fly I have flown for the first time Frontier and what a joke and their customer service United was a very strange experience I'm only sticking to Southwest from here on out for sure

Great job Southwest! My family doesn't fly often but we felt safe the whole time.

Flight was delayed, full flight and I had to change gates. Southwest flights are always late later in the day.

Was fine, delayed and feels like southwest is always late

I'm glad it wasn't only 75% full because I could get a good seat

The entire experience from boarding to landing was amazing! The crew were very friendly. Will definitely be back.

Delayed flight, lack of information, boarding process is a mess as is the carryon luggage causing issues when leaving the plane….just a poor experience.

Comfortable. Easy. No problems. Just wish they had gf options for snacks.

Check-in, Boarding and flight were smooth. All the employees and crew was very nice and funny. They gave the kids crayons and workbooks to keep them occupied which was a big win. I’ve flown Southwest many times and that’s the first time I’ve seen that and it is a great addition.

I liked receiving attention from aged and well experienced flight attendants. I disliked the non-gluten-free snack but I brought my own so I was OK.

Flight was delayed before take off and at landing. Baggage took 20 minutes. Flight crew would not serve full soft drink and had to ask multiple times before receiving water.

For some reason, TSA Atlanta didn’t have my bag on the flight on time and they don’t have to provide Delta a reason for that.

I am still at the Airport! Delayed Delayed and Delyaed

The landing was the worst I’ve experienced with a flight.

It was last minute due to weather - considering - it was amazing! Good smiles, friendly staff and they were making sure we knew what was going on when and where.

It was a great flight and the stewards and stewardess were all kind and accommodating!! The seats were comfortable and entertainment screen excellent!

737-800 in first class was pretty dumpy. Seat had an uncomfortable angle, storage under the seat was blocked so even my very modest backpack didn't fit, power outlet was flaky. Weird tiny seat pockets that couldn't hold a gallon ziploc bag, emesis bag missing, etc. etc. No in-flight service due to turbulence. Crew was excellent, boarding was smooth despite a full flight.

The flight was overbooked and the staff at the gate started calling for volunteers to drop out and offering incentives. That delayed the flight

There was no wifi even after my husband paid for wifi it wasn’t working. The plane looked and felt old.

Update the cabin with tv screens or at least music sources.

It was a short, comfortable flight. It did leave an hour late due to the pilot having to be replaced (family emergency) but that didn’t inconvenience myself & my friend. The situation was explained, eventually.

UA594 was delayed multiple times. I ended up getting picked up so I can make it in time for work 6AM on Monday, 7/6/2026

Boarded from a very small gate at LAX. Staff at gate had us line up, then waited 25 minutes to board without a word of explanation. Plane arrived on time then waited 20 minutes for a plane to vacate our gate. Majority of bags arrived after 15 minutes but it took an hour for a small number of remaining bags to be off-loaded despite my “priority” bag tag.

Great staff. Clean plane, but we were delayed for more than an hour due to maintenance issues and had to board another plane.

Lost one piece of luggage even though I checked in 2.5 hours before the flight

The boarding process on the departure from LA was rather slow even though I was in Group 1. For first class, I was not expecting to have to pay for Wi-fi but I did and then the wi-fi was spotty. The entree was surprisingly good and so that was a pleasant surprise. However, once I got to Houston, it was terrible. Unfortunately there was bad weather but the constant gate changes for my connecting flight was difficult to manage due to having to navigate back and forth between different terminals.

Service was professional and quick. Premium economy seat was comfortable given the class

The staff was extremely helpful and friendly at all times! They went above and beyond to get us into an earlier flight in San Diego to make our connection in SFO possible, because our original flight did actually not make it! I did so much appreciate the UA team and how they made this possible. We also didn’t have seats together on the long flight to Singapore, but they found us seats together last moment with no additional cost! Nobody sat next to us, so that we were able to sleep! Thanks to UA for improving their service and Underpricer for booking this trip! Please be careful: 1,5 hrs for transfer in San Francisco might not be enough time in the future

Seat pitch is horrible especially on the 15 hour flight. Gate crew at SFO was Outstanding. The flight crew was also great.

Awful. No counter attendants. No dinner offered due to delays.

Very turbulent flight, no drinks, very little service, unorganized boarding, gate changed multiple times

Ontario airport boarding was very easy to park and access, is clean and TSA took 10 minutes total. Check-in was a breeze and cruise was very nice.

Good flight, seated and had a water within 5 minutes. Crew was hospitable.

The flight was on time and arrived early. The crew were friendly and helpful.

Poor seat in rear of aircraft Food at Admiral’s Club Terminal D at DFW inedible

The chair cushions may need an upgrade. I have been noticing they are so worn out, thin so you’d sit in a dip 😄. Other than that, all was an enjoyable trip. Thanks AA!

VERY disappointed at the agent checking in my luggage. I know that the weight limit is 23 kg, a little over 50 pounds (50.71 pounds). Yet the agent kept repeating "50 pounds". So I said, the limit is 23 kg, and she had the audacity to say 'no, it is 22 kg!" Imagine my surprise. Was she ignorant or was she poorly trained? Not sure. The boarding process was pretty good. The speakers were loud enough so I still could hear them despite inconsiderate passengers continuing to speak while the announcements were going on. During the flight, the teenage girl sitting behind me kept pressing her feet to the back of my chair. I turned around several times, yet she did not get the hint. I did not make a fuss since I sense I had a bad streak that night with AA, so I just did the best I can to lean forward and not let that bother me.

Multiple gate changes and significant delay leaving DFW. Made for a late arrival

It was wonderful upgrading to first. Plane was so cold thou. Crew was great. Wish there was a food option in first for such a long flight. Doesnt matter the time of day. Chintzy.

For the price of the ticket you get nothing. The plane had 1 bathroom in the back and when the flight attendant did service no one could use it. No announcement just was told to go back to my seat. Ridiculous and rude.

Everything you need to know for your flight from Ontario to South Carolina

Information on your arrival and departure airports