CLT - ONT

$68 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 1/22. 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

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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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

Thu, Nov 6 - Mon, Nov 10
Frontier Logo
4:50 pm - 6:49 pmCLT-ONT
28h 59m1 stop
Frontier Logo
6:53 am - 5:17 pmONT-CLT
7h 24m1 stop
$172Frontier
Find Deal
Mon, Nov 10 - Thu, Nov 13
Frontier Logo
8:51 am - 6:39 pmCLT-ONT
12h 48m1 stop
Frontier Logo
12:05 pm - 5:17 pmONT-CLT
26h 12m1 stop
$198Frontier
Find Deal
Fri, Dec 12 - Sat, Dec 13
Southwest Logo
1:05 pm - 7:40 pmCLT-ONT
9h 35m1 stop
Southwest Logo
10:50 am - 8:35 pmONT-CLT
6h 45m1 stop
$292Southwest
Find Deal
Sat, Nov 1 - Tue, Nov 4
American Airlines Logo
6:00 pm - 8:07 pmCLT-ONT
5h 07mnonstop
American Airlines Logo
10:34 pm - 6:01 amONT-CLT
4h 27mnonstop
$337American Airlines
Find Deal
Fri, Dec 12 - Sat, Dec 13
Southwest Logo
5:50 am - 12:25 pmCLT-ONT
9h 35m2 stops
Southwest Logo
10:50 am - 8:35 pmONT-CLT
6h 45m1 stop
$338Southwest
Find Deal
Sat, Jan 31 - Fri, Feb 6
American Airlines Logo
5:23 am - 2:18 pmCLT-ONT
11h 55m1 stop
American Airlines Logo
11:59 pm - 2:29 pmONT-CLT
11h 30m1 stop
$342American Airlines
Find Deal
Tue, Nov 4 - Sat, Nov 8
Delta Logo
2:27 pm - 7:19 pmCLT-ONT
7h 52m1 stop
Delta Logo
11:36 am - 11:50 pmONT-CLT
9h 14m1 stop
$347Delta
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Tue, Nov 4 - Tue, Nov 11
Delta Logo
2:27 pm - 7:19 pmCLT-ONT
7h 52m1 stop
Delta Logo
10:25 pm - 8:41 amONT-CLT
7h 16m1 stop
$357Delta
Find Deal
Sat, Nov 1 - Tue, Nov 4
United Airlines Logo
4:17 pm - 8:44 pmCLT-ONT
7h 27m1 stop
United Airlines Logo
6:05 am - 9:20 pmONT-CLT
12h 15m2 stops
$362United Airlines
Find Deal
Sat, Nov 1 - Tue, Nov 4
United Airlines Logo
10:43 am - 5:34 pmCLT-ONT
9h 51m2 stops
United Airlines Logo
6:00 am - 6:51 pmONT-CLT
9h 51m2 stops
$367United Airlines
Find Deal

Everything you should know

Our travelers' advice
AI-generated summary based on content written by travel experts
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
Top airlines
Frontier
Cheapest • from $172 (round-trip)
Southwest
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
4 weeks
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 26% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
April
Cheapest • 18% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$172
Overall average: $434
Frontier
Thu 11/6Mon 11/10
CLT - ONT • 1 stop
Cheapest non-stop
$337
Typical prices: $419-$1,010
American Airlines
Sat 11/1Tue 11/4
CLT - ONT • Non-stop
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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!
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 April, where tickets cost $328 (return) on average. On the other hand, the most expensive months are December and November, where the average cost of round-trip tickets is $538 and $434 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.

No, with an average price for the route of $358, prices are generally cheapest when you fly direct.

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 26% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 23 weeks before departure.

Expert advice

Expert advice for your flight from Charlotte to Ontario

 
Snippets provided in this section are AI-generated based on a summarization of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airports
CLT

For departures at CLT, avoid peak times to minimize security wait times. Lines at A and E terminals are often shorter than B and C.

Read more about CLTby Ramsey Qubein
ONT

For a smooth arrival at ONT, use the ONT Connect Shuttle from Rancho Cucamonga Station, included in the Metrolink fare.

Read more about ONTby Jennifer Simonson
Our travel experts
Jennifer Simonson

Jennifer Simonson

Expert on ONT

Jennifer Simonson

Jennifer Simonson

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.

Read more
Ramsey Qubein

Ramsey Qubein

Expert on CLT

Ramsey Qubein

Ramsey Qubein

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.

Read more

Good to know

Low seasonJanuary
Cheapest flight$68
Best time to beat the crowds with an average 6% drop in price.
Most popular time to fly with an average 34% 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 $68 for a one-way ticket and $172 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, Alaska Airlines, 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 $372 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 $332 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 $497 or less one-way and $369 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 4235 reviews
8.0Comfort
8.6Crew
8.1Boarding
7.0Food
7.5Entertainment
Airline reviews

Delays delays delays. Late taking off, late landing, wait for a gate, etc.

4.0 OkayJeff, Oct 2025MCI - SAN
Read more Southwest reviews

Delays delays delays. Late taking off, late landing, wait for a gate, etc.

Connecting flight is on time and boarding was a breeze!

Very smooth checking in our luggage with a super pleasant SW agent. I enjoyed a fun entertaining movie.

First time traveling on Southwest since bag fees were implemented. Usual good service. Just more expensive now.

It was a perfect flight in all aspects! Both legs!

Boarding process, crew were good. But the seats were so uncomfortable that was all I could focus on. I literally had to sit forward so that all 3 of us could fit in row. I will try to avoid Southwest in the future for any flights over 60 minutes.

Great flight, 47 passengers on a 180 seat plane. Stewardess was pleasant and cheerful.

Great experience flying Southwest. The crew was really kind and helpful, and very friendly with our toddler.

Plane late from DC to Austin 30 minutes. Crew made up much of the time enroute to San Diego.

Fine, but how to board on SW versus othrr airlines, is just lame. Goood staff though and all was solid otherwise.

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 .

Flight was too crowded and seats are too small, especially since passengrs are getting larger. Having a middle seat is ALWAYS tough! Woman on my left was large & kept creeping in to my space. Flight personnel were great! Have more savory rather than sweet snacks please.

On time flight. Seat comfort could be better in the Comfort section.

The crew took good care of us. The flight from ATL to SFO is a longer one, and there were multiple beverage offerings. I like the 757's that Delta uses. Good airplane that is comfortable. I do wish Delta would separate Priority boarding from the better seats. I would gladly take a smaller seat in an open row than be jammed into Comfort just to get priority boarding, just to make sure I don't have to check a bag.

Gate agent rushed to fill hot jetway with crowd so it took over 12 minutes to go from gate to plane. Just like a discount airline Pooly prepared cabin and third time that claim of rough air prevented any cabin service. Friends on a Southwest flight at similar time had service.

Perfect flight both ways. On time, courteous staff, plane comfortable and cool. Best domestic flights I’ve had in awhile.

I was uncomfortably cold on the plane. Other than that it was uneventful and therefore as enjoyable as a plane ride can be.

Food was surprisingly good but the WiFi was not great

My flight was extremely cold. I had a jacket and a cover was left in each seat. The cover was extremely thin and I have a disability, fibromyalgia and arthrithis and AC air is the worst. I closed my vent and my husbands vent and it still was frigid. I asked the attendant if I could get another cover and she quickly almost dismissively and totally unconcerned stating, (I quote) (one per chair) and walked off so quickly that I didn't get a chance to explain to her that I literally have adisability. I didnt want to make a seen so I set on that flight for over 5 hours in pain, joints locking up and extremely uncomfortable. When my fibromyalgia flares up my joints not only ache but they will lock up also and it takes me days to get back to my regular self even though I take medication for it. I felt like it would not have hurt anyone at all for her to just give me an extra cover because I'm sure they have all types of medical issues in people that fly every day.

Not a "Delta" issue, but a JFK issue: We booked a connecting flight with 3 1/2 hours between to clearn immigration and customs. Our inbound flight (BCN to JFK) was on the taxiway 45 minutes which ate into our layover time. Immigtration was insanely quick with the CBP MPC app; however, clearing TSA (again, after we were ALREADY cleared in Spain on the inbound international flight) took over 95 minutes. This left us with 10 minutes before boarding the connecting flight (JFK to SAN) to walk to the far end of Terminal 4 and try to find food. We didn't find any food that could promise to serve us in under 10 minutes so we boarded the Delta flight after coming off a plance and an 8-hour flight knowing that we wouldn't be served any food on the next 5 1/2 hour flight. I feel like Delta needs to put pressure on the JFK TSA to open more screening stations (by our count, we saw only 5 scanners open and a line of - as we said - over 90 minutes. The insult is that we WERE ALREADY SCREENED through TSA, but as you come off one flight into the USA, you have to go through the whole process again. It seems like if you have a connecting flight, there should be a way to pass through immigration and customs without needing to return through TSA.

Flight was delayed because of a bird strike. They had another plane available within 45 minutes.

You can plug your phone in & use their wifi to watch movies, etc, but the plane’s wifi was disconnected for most of the flight.

Sat on the ground in Cincinnati for 50 minutes before deplaning

Overall fine, but the delay was annoying and the reasons for the delay were not communicated. The crew on board were phenomenal!

Boarding was very efficient. Everyone got on board and we got on our way very quickly. It was frustrating that the entertainment app was not functioning properly. I was not able to activate some of the movies offered. The crew on this flight appears to be pretty grumpy. They had no smile on their faces. I felt like they were doing us a favor for being there.

Delayed because of weather in Nashville. I think God or some higher power generally has cursed me when it comes to flying out of Charlotte on American. I'm delayed pretty much everytime. We need Team Cobra Kai types to come in and "sweep the leg(s)" of the Charlotte ops people on principle. Don't let the sweet southern rocking chairs fool you, Charlotte is a sinkhole

Long 5 hour and 45 min flight and only one drink service and cookie snack

Newark airport grounded inbound flight and only announced when the flight was about to start taxing.

Terrible. The flight was delayed two hours due to weather. Then when we got on the plane, the first pilot ended up timing out and we had to wait for a second pilot. Second pile came on board and we tax it out. Had to return back to the gate because of an unruly passenger. Then the copilot timed out. Had to wait for new copilot. Also had to wait for maintenance to check for fuel. Then found out the second pilot timed out and we had to wait for a third pilot. Was ready to go and then needed maintenance again for another issue. In the end, it was 2 o’clock in the morning when they announced that the flight couldn’t go because the third pilot and the second copilot had timed out.

American Airlines initially postponed the flight. Then they cancelled it an rescheduled us on a flight that would take over 24 hours with multiple stops. They then changed this flight to a reasonable alternative the next day which they later cancelled and replaced with a flight that would take off with an additional 16 hour delay. They blamed weather but I noticed (at 4am) that Delta had direct flights from Charlotte to Detroit. I went on line. Booked it and was in Detroit buy 9am. The interesting thing is they did a similar thing to a family member just 2 days earlier. I don't think I will fly American unless I have to.

My luggage didn’t arrive at LAX, so that wasn’t a good experience.

I was never aware that I had to pay $100 per luggage to them on the plane that are simply carry-ons. This is discriminatory and I’m going to be alerting my entire family and friends and my Instagram following up over 75,000 of this issue and misunderstanding, including mismanaging.

My experience with spirit was not good at all! This was actually my first time flying with Spirit and it’s definitely my last, first of all that flight was delayed, plus I had to pay $99 dollars for my carry on, that’s insane I have never pay for my carry on, I’m definitely going keep traveling with JetBlue or American Airlines, you guys have horrible service.

My baggage broke and they did not offer me anything. No conversation

Don't board the plane and have us sit for 2 hours and go nowhere!

Cancelled my flight last minute and did not help me rebook. It was a horrible experience.

Wow truly top notch airline Efficient nice snacks courteous staff Fast boarding !

My experience with Spirit was good, but the experience with Kayak was not. Based on the Spirit agent Kayak added an additional charge after purchasing the tickets. When I buy the tickets I paid the total amount and I only pay once. This time they added an additional charge because based on Spirit they partially charge the tickets and I still needed to pay a second time. This is not good at all and Unprofessional

Spirit gets such a bad rap. I have never had a bad experience with them and the crew is always friendly and funny. This trip I had knee replacement surgery surgery 10 weeks ago. It is still a little rough to get get from point a to point b. And Spirit was on top of it. When there was a seat available the stewardess asked me if I wanted to move to an open seat so I could elevate my leg on the empty seat? 5 stars all around. They helped me on and helped me off the plane. I can’t say enough about the crew!!

Late departure by 1:45min. No explanation why. During boarding inconsistent policing of their baggage rules. Before takeoff and lamdimg strange obsession with window shade and armrest positions. Don't know why they care. 15 min tarmac delay on arrival, they blamed airport congestion but we were the o lh flight waiting, it was clear it was due to poor staff planning (only one ground crew to receive airplanes and multiple arrivals) Got there but was rrally lame the whole trip.

Boarding was on time and plane departed as scheduled. There are obviously no amenities (food, drink, entertainment) on Frontier, but there also didn't seem to be any issues with luggage space either.

Inbound plane was on time and flight departed on time with no issues while boarding.

I knew going into this that Frontier, being a low cost carrier, would be pretty bare bones and charge for most extras but this was made up for by the fact that the airplane was a reasonably new Airbus, every employee was great and best of all, Everett Washington is an amazing airport - thanks Frontier for flying there!!!

i was unable to check in the flight. refund requested

It was well done. It was my first time flying with them and I was nervous b/c I have heard of many cancelled and/or delray flights. Everything went smoothly.

Just know that everything, and I mean everything is “ala cart”. 60$ just to put something in the overhead bin. I will never fly Frontier again nor do I recommend them to anyone else.

The single worst check in experience I could imagine. I’ll never do any business with Frontier or any affiliated company

Too many extra fees, uncomfortable, little leg room. Will not recommend this airline.

I think Frontier was very good at communication. Their app worked very well. Loading was great and the flight was nice and easy.

Great for the price. No wifi or entertainment, but gate agents and crew were fantastic and we boarded quickly and left on time.

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

Information on your arrival and departure airports

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