ONT - KOA

$134 Find Cheap Flights from Ontario to Kailua-Kona

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 Kailua-Kona departing on 5/6. 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.
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Search hundreds of travel sites at once for deals on flights to Kailua-Kona

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Kailua-Kona, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Kailua-Kona, as well as popular online travel agencies
In the last 7 days travelers have searched 41,299,237 times on KAYAK, and here is why:

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Cheap Flight Deals from Ontario to Kailua-Kona (ONT-KOA)

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

Recent round-trip flight deals from Ontario to Kailua-Kona

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Ontario to Kailua-Kona.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
6:00 am - 6:44 pmONT-KOA
14h 44m1 stop
9:00 pm - 12:24 pmKOA-ONT
13h 24m2 stops
$307Delta
Find Deal
Tue, Feb 4 - Wed, Feb 5
6:00 am - 11:44 pmONT-KOA
19h 44m1 stop
11:15 pm - 10:38 amKOA-ONT
9h 23m1 stop
$317Alaska Airlines
Find Deal
Mon, Feb 3 - Wed, Feb 5
1:45 pm - 7:30 pmONT-KOA
8h 45m1 stop
10:50 pm - 12:15 pmKOA-ONT
10h 25m1 stop
$347United Airlines
Find Deal
Mon, May 5 - Thu, May 8
6:00 am - 12:53 pmONT-KOA
8h 53m1 stop
10:55 pm - 9:54 amKOA-ONT
7h 59m1 stop
$384United Airlines
Find Deal
Mon, Mar 3 - Tue, Mar 11
4:25 pm - 3:53 pmONT-KOA
25h 28m1 stop
10:10 pm - 7:47 amKOA-ONT
7h 37m1 stop
$408American Airlines
Find Deal
Sat, Mar 1 - Sat, Mar 8
6:10 am - 3:47 pmONT-KOA
11h 37m1 stop
9:13 pm - 9:09 amKOA-ONT
9h 56m1 stop
$415American Airlines
Find Deal
Fri, Jan 24 - Mon, Jan 27
9:45 am - 3:39 pmONT-KOA
8h 54m1 stop
8:00 am - 9:55 pmKOA-ONT
10h 55m1 stop
$429Hawaiian Airlines
Find Deal
Mon, May 12 - Fri, May 30
9:50 am - 5:35 pmONT-KOA
10h 45m1 stop
10:00 pm - 10:39 amKOA-ONT
9h 39m1 stop
$454Hawaiian Airlines
Find Deal
Sun, Jun 1 - Tue, Jun 10
6:15 am - 2:25 pmONT-KOA
11h 10m2 stops
6:00 am - 8:10 pmKOA-ONT
11h 10m2 stops
$514Southwest
Find Deal
Tue, Mar 18 - Tue, Mar 25
11:15 am - 7:55 pmONT-KOA
11h 40m2 stops
10:00 am - 11:20 pmKOA-ONT
10h 20m2 stops
$534Southwest
Find Deal
Thu, Mar 20 - Thu, Mar 27

Flights from Ontario to Kailua-Kona - Travel Insights & Trends

Get data-powered insights and trends into flights from Ontario to Kailua-Kona 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 Ontario to Kailua-Kona?

The average price of all round-trip flights from Ontario to Kailua-Kona clicked on KAYAK for each day over the last 12 months.
If you are looking for a flight deal from Ontario to Kailua-Kona, look for departures on Sundays and avoid leaving on a Friday, as it's usually the priciest day. When flying back from Kailua-Kona, Monday is the cheapest day to fly and Sunday is the most expensive.

What is the cheapest month to fly from Ontario to Kailua-Kona?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Ontario to Kailua-Kona, 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 Kailua-Kona is April, where tickets cost $293 (return) on average. On the other hand, the most expensive months are June and September, where the average cost of round-trip tickets is $538 and $478 respectively.

How far in advance should I book a flight from Ontario to Kailua-Kona?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Ontario to Kailua-Kona, 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 Ontario to Kailua-Kona, you should book around 4 weeks before departure. For the absolute cheapest price, our data suggests you should book 4 weeks before departure.

Good to know

Low season

February

High season

December

Cheapest flight

$134
Best time to beat the crowds with an average 18% drop in price.
Most popular time to fly and prices are also 3% lower on average.
Flight from Ontario to Kailua-Kona

When to book flights from Ontario to Kailua-Kona

Are your dates flexible? Find out the best times to travel from Ontario to Kailua-Kona 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 Ontario to Kailua-Kona

  • What is the cheapest flight from Ontario to Kailua-Kona?

    In the last 3 days, the lowest price for a flight from Ontario to Kailua-Kona was $134 for a one-way ticket and $307 for a round-trip.

  • Do I need a passport to fly between Ontario and Kailua-Kona?

    No

  • Which aircraft models fly most regularly from Ontario to Kailua-Kona?

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

  • Which airline alliances offer flights from Ontario to Kailua-Kona?

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

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

    The two airlines most popular with KAYAK users for flights from Ontario to Kailua-Kona are Southwest and Delta. With an average price for the route of $538 and an overall rating of 8.1, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $364 and an overall rating of 8.0.

  • How does KAYAK find such low prices on flights from Ontario to Kailua-Kona?

    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 Kailua-Kona.

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

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

    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 Kailua-Kona with an airline and back to Ontario with another airline. Booking your flights between Ontario and KOA 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 Ontario to Kailua-Kona?

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

See more FAQs

Top 5 airlines serving from Ontario to Kailua-Kona

 
See real verified KAYAK customer reviews for airlines flying from Ontario to Kailua-Kona. 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 Kailua-Kona? 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
Alaska AirlinesOverall score based on 9669 reviews
7.1Food
7.9Comfort
8.5Crew
7.1Entertainment
8.2Boarding
Airline reviews

Easier to file a claim. My fiancé got the flu and we had to cancel. ive been given the run around filing a claim. Call me at 831.588.4346 with a live agent please

2.0 MediocreAnonymous, Jan 2025SJC - LAX
Read more Alaska Airlines reviews

Easier to file a claim. My fiancé got the flu and we had to cancel. ive been given the run around filing a claim. Call me at 831.588.4346 with a live agent please

My seat was comfortable. There was no TV on the airplane.

Flight delay was inconvenient and exhausting getting in at 1 am. However the crew and lounge was very comfortable.

No complaints. Great service. A first class entry lane at boarding wouldn’t hurt.

When we checked in our luggage, we had to use the tray, but include this tray is extra weight. I think you should not use the tray.

From my interactions with the Oakland airport staff through TSA through the gate agents to the flight crew on Hawaiian they were just so kind professional and helpful.. the only thing I would add would be the they need more help and TSA and on the Hawaiian airlines flight it would be so much nicer for them to play beautiful Hawaiian music on the way over there.. they didn't start playing it until right before we landed..

Crews ADA compliance ecellent. Sensitive and kind observation involving several passengers on plane Plane clean and fresh includsing lavatories

I flew from San Francisco to Honolulu on Alaska Airlines codeshare with Hawaiian Airlines, with a Hawaiian Airlines plane and crew. The flight was well organized, including boarding and deboarding. The crew was professional. Unfortunately, the charging ports at my seat and the seat next to me were broken. The Hawaiian airline terminal was a pleasant surprise compared to the rest of Honolulu airport.

We were amazed by the amazing food, comfort and service received in our coach seats. Pleasantly surprised we received breakfast and great beverages for no charge. Bag check fee was on $35. The crew was so kind and helpful. Highly recommend!

I don't know what it is. But it seems that flights from Ontario to Seattle are always delayed. This one was delayed 3 hours. I guess I should just expect it from now on.

It was terrible, if they ran flights on time it would make a big difference.

Delta seems to be improving in many areas, except they are super bad with the food available. Bring back normal food service on long flights.

I actually received a notification from kayak on email but not one by text from Delta when my departure gait changed and I almost missed my flight

New boarding doesn't make sense. Filling front first is slow.

Delta flight was great from the check in all the way to arrival. However, I had a very bad experience. I requested a wheelchair and the wheelchair employee that went to pick me up from the plane in Boston to bring me to the baggage claims told me I have to pay him. I was under the impression that it was a free service and I usually give tips but the person forced me to pay and since I said no because I was upset with his demand when my daughter walked in to pick me up he demanded payment from my daughter who paid him thinking maybe now it is a charged service.

Horrible. Grateful to be alive but spent 13 hours at airport only to return back to my familys house and flight changed to next day. They tried to fix a part on plane, had no back up plane and after 10 hours , reattempted the flight and it STILL wasn't fixed. We got a meal voucher and rescheduled flight but there should be some other compensation for the 15 hours spent in airport

My seat was changed at the last minute and I was moved to the last row, right next to the bathroom despite selecting my seat well in advance. I was also made to check my carry on due to space but when I got on the plane there was significant empty overhead space. Picking up my carry on from the luggage carousel added time to my trip which had already been extended due to delay.

There was plenty of overhead room but half of the passengers were told they had to check their carryon bags. My partner and I checked in as early as possible and our seats were split across the aisle.

Flew first class so everything was great. But maybe because the flights were red eye, no meals were served, just chips. I flew Alaska Air 1st class at 9PM (2 hour flight) and they served beef short rib sliders!

Paid premium for Delta only to be on safe but tired old 767 with ancient cabin in mediocre condition. Poor wifi and horrible inflight entertainment. Hardly a premium experience. Should have flown SW and had fun flight crew and no pretense

WiFi was not working thus the entertainment system did not work! Over 5 hours with nothing.

I sat in 17G. I was not aware that I was behind a jump seat with no leg space or pocket to store stuff.

The plane was very old. No screens on the back of the seat and there was obvious wear and tear in both the bathroom and the seating areas.

Plane had screws missing from engine cowling. Retire that POS

Some staff were very nice. Others were whatever. Plane was 2 hours delayed. Food was absolutely horrible. Nobody likes a turkey croissant. Gross. Serve something healthy and Hawaiian. Free internet was awesome but we only got that because we were 2 hours delayed. That should be standard on all flights, free internet. Luckily we made our connection but the plane on the connecting flight was ancient and had screws missing from the engine cowling. That plane needs to be retired.

They canceled our flight and reboot us for a later flight which threw off the rest of our plans

Friendly and helpful crew. But we departed 4 hours later than scheduled departure.

It was nice to have WiFi on board to steam on your device.

The boarding was stressful without paying extra for an assigned seat. The staff were helpful but the process is unacceptable.

Wonderful flight. Food and drink were given as well as wifi. Amazing luxury!

Wish movie and music choices changed more often. Mostly same from a month or two ago when I last flew.

It was good. Just that the seats could not be reclined. The people behind were not ready to let the chairs be reclined

Had a hard time finding my assigned seat. No attendants to assist.

Plane left & arrived early- 5 Crew great. Wi fi - paid for 2, only 1 worked - so so. Waste of $. Coolie was good

There was no USB plug in my section of the plane. So I could not charge my phone. Also, there was no screen to watch movie or anything like that. Wish I had known that in advance, I would’ve brought my iPad.

Made all groups except 2 check despite ample bin space. Inflight WiFi and entertainment didn’t work most of the time.

Not enough room between rows and food was gross. $160 baggage charge?! Never again.

It was fine. The flight attendant appeared to be in a bad mood but everything was fine.

Seats are outdated. Entertainment relies on personal device. Boarding was delayed due to inaccurate passenger tracking, resulted in late arrival at Reno.

Excellent staff helping my 96 year old senior promptly with her oxygen needs

After several delays and being rebooked onto a layer flight, I had to speak to three AA agents for baggage claim to get an attendant. All were in foul mode and reluctant to assist or offer any assistance.

Multiple maintenance delays and the missed and rebooked connection changed gates at least 6 times including one which had us walking 20 minutes to another terminal and then back again. Seated our family of three in different middle seats throughout the plane and then there was an empty seat next to me. Very long travel day which I would have never agreed to if I knew the itinerary would be changed at 5 am, 2 hours before takeoff.

It was as expected for such a short flight. No complaints

It was nice being on a flight that had working wifi. The boarding was quick - why don’t all airlines have small boarding groups window to aisle? Makes so much sense!!! I was disappointed to be the first person stopped to have to gate check my carryon. Especially when there was plenty of overhead space at the back! But I get it…keeps it moving. Crew was nice.

The flight encountered a delay exceeding 4 hours. The food voucher issued was valued at $12, insufficient to cover our meal expenses. Consequently, I was unable to take my medication, leading to a drop in blood sugar levels and exacerbating my anxiety.

Not too impressed with them to be honest. They had forgotten my gf meal, despite the fact that the app had notified me that it was sorted. Apparently there is a ‘glitch’ in the system, according to one of the stewardesses, and has been for a while. Also the legroom in economy is way too small (and I’m a slight person) and are very uncomfortable. An extra Internal flight I booked via the app, had not even given me the option to order a meal, so was unaware of that and left without food on a 9 hr. flight !! Don’t think I’ll use AA again after this.

The flight was uneventful. What was a problem was I was delayed getting home one entire day because the flight from Sacramento was delayed. That made getting to my connecting flight impossible. I had to stay another night at the hotel and incur that expense as a result.

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.

Seats were very uncomfortable. I paid extra for a seat with more leg room, the seat was no different than a seat at the back of the plane. Flight attendant was rude.

Flights were on time. That's the main consideration since I had to change planes. The entertainment was whatever you bring with you and the food (in Economy) is non-existant. Neither of those was a surprise.

Everything you need to know for your flight from Ontario to Kailua-Kona

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