CLT - ONT

$79 Find Cheap Flights from Charlotte to Ontario

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Charlotte to Ontario departing on 4/14. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Ontario

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Charlotte to Ontario.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Charlotte to Ontario.
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Everything you should know

Cheapest round-trip
$160
Overall average: $396
Frontier
Mon 4/13Mon 4/20
CLT - ONT • 1 stop
Cheapest non-stop
$423
Typical prices: $334-$477
American Airlines
Wed 4/22Wed 4/29
CLT - ONT • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
For departures at CLT, avoid peak times for security.
For a smooth arrival at ONT, use the ONT Connect Shuttle.
Expert advice
Expert advice
Expert advice
Expert advice
Nonstop flights
You can fly direct with American Airlines. Average duration is 5h 19m
Direct flights
Direct flights
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Direct flights
Direct flights
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Top layover airports
Cheapest • Avg $214 (round-trip)
Shortest trip • 6h 44m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 5% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 17% price drop
Most popular
Good to know
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Ontario!
Flight Deals
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Expert advice
Flight Deals

Cheap Flights from Charlotte to Ontario (CLT-ONT)

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

Mon, Apr 13 - Mon, Apr 20
Frontier Logo
10:22 am - 6:40 pm
CLT
-
ONT
11h 18m
1 stop
Frontier Logo
6:15 am - 4:02 pm
ONT
-
CLT
6h 47m
1 stop
$160Frontier
Thu, Apr 16 - Mon, Apr 20
Frontier Logo
8:17 pm - 4:38 pm
CLT
-
ONT
23h 21m
1 stop
Frontier Logo
6:15 am - 4:02 pm
ONT
-
CLT
6h 47m
1 stop
$167Frontier
Thu, Apr 16 - Sat, Apr 18
Frontier Logo
8:17 pm - 4:38 pm
CLT
-
ONT
23h 21m
1 stop
Frontier Logo
12:59 am - 5:23 pm
ONT
-
CLT
13h 24m
1 stop
$172Frontier
Wed, Apr 29 - Tue, May 5
Frontier Logo
7:49 pm - 11:55 pm
CLT
-
ONT
7h 06m
1 stop
Frontier Logo
6:00 am - 4:25 pm
ONT
-
CLT
7h 25m
1 stop
$185Frontier
Thu, Apr 30 - Sat, May 9
Frontier Logo
8:17 pm - 4:38 pm
CLT
-
ONT
23h 21m
1 stop
Frontier Logo
10:50 am - 4:25 pm
ONT
-
CLT
26h 35m
1 stop
$187Frontier
Wed, Apr 22 - Tue, Apr 28
Frontier Logo
7:49 pm - 11:55 pm
CLT
-
ONT
7h 06m
1 stop
Frontier Logo
12:59 am - 6:54 pm
ONT
-
CLT
14h 55m
1 stop
$191Frontier
Tue, May 5 - Wed, May 6
Frontier Logo
5:20 pm - 11:49 pm
CLT
-
ONT
9h 29m
1 stop
Frontier Logo
8:06 pm - 12:41 pm
ONT
-
CLT
13h 35m
1 stop
$192Frontier
Thu, Apr 30 - Sun, May 3
Frontier Logo
8:17 pm - 4:38 pm
CLT
-
ONT
23h 21m
1 stop
Frontier Logo
12:59 am - 5:23 pm
ONT
-
CLT
13h 24m
1 stop
$198Frontier
Mon, Apr 13 - Wed, Apr 15
Frontier Logo
10:22 am - 6:40 pm
CLT
-
ONT
11h 18m
1 stop
Frontier Logo
12:59 am - 5:23 pm
ONT
-
CLT
13h 24m
1 stop
$205Frontier
Mon, Apr 20 - Mon, Apr 27
Frontier Logo
4:47 pm - 11:43 pm
CLT
-
ONT
9h 56m
1 stop
Frontier Logo
6:15 am - 4:02 pm
ONT
-
CLT
6h 47m
1 stop
$206Frontier
Booking Insights

KAYAK's insights & trends for Charlotte to Ontario flights

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

What’s the cheapest day of the week to fly from Charlotte to Ontario?

The average price of all round-trip flights from Charlotte to Ontario clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Ontario on a Wednesday, as we generally find the cheapest rates on that day for this route. On the other hand, Sunday is the most expensive day to fly from Charlotte to Ontario. For your return ticket, we recommend flying on a Tuesday and avoiding Sundays for the best deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Charlotte 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 Charlotte to Ontario is September, where tickets cost $348 (return) on average. On the other hand, the most expensive months are March and December, where the average cost of round-trip tickets is $525 and $478 respectively.

Can I save money by flying with a layover from Charlotte to Ontario?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $463 on average.

How far in advance should I book a flight from Charlotte to Ontario?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Charlotte to Ontario, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Charlotte to Ontario, you should book around 4 weeks before departure, which saves you about 5% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 15 weeks before departure.

Expert advice

Expert advice for your flight from Charlotte to Ontario

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Jennifer Simonson

Jennifer Simonson

Expert on ONT

Jennifer Simonson is driven by her lifelong commitment to exploring the globe. Her insatiable curiosity had led her to immerse herself into diverse locations like Oklahoma City and Pismo. Her hotel recommendations are the result of the myriad hotels she's stayed at across her travels. Along her journey, she cherishes engaging conversations with locals, indulging in the finest ice cream, trying her hand at surfing, and embarking on nature-filled hikes.

Ramsey Qubein

Ramsey Qubein

Expert on CLT

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Good to know

Low seasonFebruary
Cheapest flight$79
Most popular time to fly with an average 13% increase in price.
Flight from Charlotte to Ontario

When to book flights from Charlotte to Ontario

Are your dates flexible? Find out the best times to travel from Charlotte 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 Charlotte to Ontario

  • What is the cheapest flight from Charlotte to Ontario?

    In the last 3 days, the lowest price for a flight from Charlotte to Ontario was $79 for a one-way ticket and $160 for a round-trip.

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

    No, a passport isn't needed to fly from Charlotte to Ontario. However, local authorities might ask for an official ID.

  • Which airlines offer Wi-Fi service onboard planes from Charlotte to Ontario?

    American Airlines, JetBlue, and Delta offer inflight Wi-Fi service on the Charlotte to Ontario flight route.

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

    The Airbus A321-100/200 is the aircraft model that flies most regularly on the Charlotte to Ontario flight route.

  • Which airline alliances offer flights from Charlotte to Ontario?

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

  • On which days can I fly direct from Charlotte to Ontario?

    There are nonstop flights from Charlotte to Ontario on a daily basis.

  • Which is the best airline for flights from Charlotte to Ontario, Southwest or Delta?

    The two airlines most popular with KAYAK users for flights from Charlotte to Ontario are Southwest and Delta. With an average price for the route of $416 and an overall rating of 8.0, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $356 and an overall rating of 7.9.

  • How does KAYAK find such low prices on flights from Charlotte 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 Charlotte to Ontario.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from Charlotte 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 Charlotte 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 Charlotte with another airline. Booking your flights between Charlotte 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 Charlotte 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 Charlotte up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Charlotte to Ontario

  • Looking for a cheap flight? 25% of our users found flights on this route for $453 or less round-trip.

Prefer to fly direct from Charlotte to Ontario?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Charlotte Douglas to Ontario.
Find which airlines fly direct from Charlotte Douglas Airport to Ontario Airport, which days they fly and book direct flights.

Direct departures

Charlotte Douglas to Ontario

Monday

American Airlines

American Airlines

Tuesday

American Airlines

American Airlines

Wednesday

American Airlines

American Airlines

Thursday

American Airlines

American Airlines

Friday

American Airlines

American Airlines

Saturday

American Airlines

American Airlines

Sunday

American Airlines

American Airlines

See more direct flights

Direct returns

Ontario to Charlotte Douglas

Monday

American Airlines

American Airlines

Tuesday

American Airlines

American Airlines

Wednesday

American Airlines

American Airlines

Thursday

American Airlines

American Airlines

Friday

American Airlines

American Airlines

Saturday

American Airlines

American Airlines

Sunday

American Airlines

American Airlines

See more direct flights

Reviews of the top 5 airlines serving from Charlotte to Ontario

 
See real verified KAYAK customer reviews for airlines flying from Charlotte 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 Charlotte 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.
8.0
SouthwestOverall score based on 4324 reviews
7.5Entertainment
8.0Comfort
8.1Boarding
8.6Crew
7.0Food
Airline reviews

Boarding was easy. The seats are small and fairly uncomfortable

8.0 ExcellentNicole, Mar 2026
LGB - OAK
Read more Southwest reviews

Boarding was easy. The seats are small and fairly uncomfortable

The problem with the seat assignments is that there were a lot of rows in the front that were empty but my row at the back was full. Just not so pleasant.

No food or entertainment, just a quick 40 minute flight. A little bumpy due to Santa Ana winds but pilot has no control over that. Good flight and landing!

Good but I prefer choose your own seat. With the new assigned seats they should board from the back I see no advantage to this new boarding. Just like every other airline

Mediocre. Boarding is now unpleasant. The employees, once friendly and nice, are now regularly speaking sternly to passengers, badgering them to do things right so they can take off on time and gate check bags because they don't have enough overhead bin space. The pretzel snack was crushed flat and broken into even smaller pieces, which happens frequently lately. Drink service was suspended before they reached my row.

I have not flown Southwest in awhile and had a very pleasant experience. From ticketing to boarding to the flight. The flight left on time and landed ahead of schedule. It won't be so long next time!!

The charges were ridiculous for an hour flight and the turbulence was very scary.

3 hour delay. Had to change plans and was still delayed.

The flight crew was extremely rude and especially not helpful when our flight was delayed.

The boarding and seat assignment system no longer works for me, but I know it is being replaced. Otherwise, I am good with the overall experience.

Left a few minutes early. Got in 15 minutes early. Very attentive service on board. Very organized boarding.

There’s not much to say about a one hour flight. This is a connection from LA to RNO that I missed the previous night due to a mechanical check delay on my originating flight from JFK to LAX. The short flight itself was fine. Instructions from the pilot and crew were per usual. The coffee was barely lukewarm, which possibly was purposeful so we would down it quickly. Bags were already on carousel upon reaching baggage claim, which was excellent.

Delta continues to set the benchmark for traveler-friendly service with minimal disruption and clear communication within the mainland US (coast to coast). I am consistently pleased to be a Delta customer, and this experience once again met my expectations. There was a brief delay departing from MIA due to a technical issue that required the aircraft to return to the gate. However, the situation was handled professionally and transparently. Fortunately, my planned layover allowed ample buffer time, so the adjustment caused no stress. Overall, another smooth and reassuring experience.

Awesome! On time flight, early arrival, and a complimentary upgrade!

Was forced to check in my small carry on, even though I informed the crew it has very fragile items inside

They double booked seats, the gate staff changed my ticket as I was boarding she went over to the computer and changed it without telling me. She messed up an entire three row section for me and others. Other travelers were outraged but the gate staff were so rude, so condescending saying it wasn't their problem to solve. I would rate this a zero if I could. Will not fly Delta again I'll stick with United and American.

I usually get upgraded so my experience is usually amazing. I did not get upgraded this time - which was fine - but the wifi had issues, the monitors were going in & out, & (though not Delta's fault) one of the gentlemen next to me desperately needed a shower.

I really liked the legroom. I am 6’4”.a at For some reason our seats were not together and using the app to fix it didn’t work. Passengers were nice enough to move for us but you should absolutely ensure a parent sits with their child.

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

They changed planes and the new plane couldn’t carry enough fuel to fly across the country so we had to stop in Kansas City to refuel. Flight was delayed .

American Airlines did everything they could with the high Spring Break crowd. I was frustrated to be changed from 1st class to a middle seat at the back of the plane. This has happened before, not sure booking 1st class and paying the extra actually works.

Plane from partner PSA was filthy. Plastic needs to be thoroughly cleaned. Really disgusting to look at and wonder about cleanliness of parts less visible.

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

Arrived early picked up my bag in a few minutes- great trip - thank you

I like that the flight attendant was very attentive and helpful. The meal menu could have more of an variety of food choices.

We missed our flight and got stranded in Miami where we had to rent a hotel we could not afford. they would not work with us because they said it was weather related even though the gate attendant said it was not. I could go on but trying to get satisfaction has wore me down, which I believe is the intent. My only solution is to never fly AA again.

Overall it was a good flight. Because we traveled on a Saturday we were upgraded to FC since my wife and I are both Executive Platinum. The only areas for improvement we noted are better snack assortment and perhaps a little nicer plane as American is flying some older planes now. Everything else on this flight was excellent, which is frankly not the norm for American since we have had multiple issues on prior AA flights.

Didn't get a seat assignment until the last minute even though i picked a seat.

Flight was smooth, quick and felt safe. The 2 delays not happening would have been better but I guess that happens in the airline industry

2 hour delay due to equipment failure. No updates via the app and airport screens (which continued to show a departure time in the past). AA eventually switched planes and the new plane was not catered or cleaned correctly.

The airplane rattled near the left wing as if several screws were loose. Then after we landed in Fort Lauderdale, we had to sit and wait on the runway for quite some time. It was very scary and TOTALLY unacceptable!

No WiFi, no outlets to charge phones, no complimentary beverages on a 6 hour flight

Flight was delayed more than 3 hours, and the metro had stopped running by the time we got to the terminal well past midnight, so I was stranded, alone, with no way to get home until the metro started up the next morning.

My flight was cancelled I missed time at work and got a parking ticket

It was terrible. I had to pay again once I got to the airport because they said they never received the payment.

charging $3 for really bad and cold coffee on airplane flight is ridiculous.

I paid for the seats in row 3 to embark and disembark quicker but the passengers in the 2 rows in front of me take all the overhead bin space so I am forced to put my luggage 5 rows back. I even opened one up right above my seat which had room but as I was going to fit my carry on a flight atendant said it "was reserved", Just giving my money to a regular airline next time.

Crew was very nice. Take off and landing were great. Economy seats are not comfortable. Extra cost for snacks.

The flight was delayed by 2 hours and we had no food or water or chargers

Horribly late because they had no crew!!! And then jet bridge didn’t work!! Then we arrived at a gate at lax miles away that we had to take a shuttle to a terminal!! I was over 3 hours late to getting the LA! Should have been here at 8:30 and at an appointment at 10:30 and arrived and left lax at 11 am!! Horrible experience!!!

The crew acted like they had never done this and kept barking passive aggressive orders at people. + the security line + the delay + sitting on the tarmac for 2 hours + none of the apps or signage updating with correct times

More inflight connection. And leg space is horrible. And the paying for baggage I'd ridiculous!!!

My flight was originally from SAT to MCO connecting from MCO to ORD. We got diverted to ATL and than Frontier staff there was sooo un helpful first they said they couldn’t give us any accommodation since our flight first got delayed that cancelled and now it’s 221am and I am still in ATL since they said they need to create a new flight my final destination is ORD and I have been delayed twice and cancelled. With no real help the frontier app didn’t work no email updates over all such a horrible experience

There's no seats that lean back with little leg space i wad uncomfortable the entire flight. Your charges for extra baggage is despicable and costly!!

Remind customers of the need to have passport or new ID for boarding.

Flight was canceled. Most upsetting was message from Kayak, stating that the flight was canceled and click with Kayak for details regarding rebook, refund details. THERE'S NO INFORMATION PROVIDED BY KAYAK EXCEPT THAT FLIGHT IS CANCELED. AND NOW THIS SURVEY TO FIND OUT HOW WAS THE FLIGHT !!!!!!!

The flight never took off and we spent 7 hours at the airport

Gate not determined until I got to the airport - hard to plan the trip to the airport.

Our flight was canceled. I will never use Kayak nor Frontier for travel again. The entire experience was a headache.

Frontier.. nickel and dime add-ons. Flight late, on time, late again, last minute gate change, arrival gate required a shuttle to the terminal. They sure keep you guessing.. if you like a little chaos and airport anxiety, this is the airline for you!

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

Information on your arrival and departure airports