KOA - ONT

$143 Find Cheap Flights from Kailua-Kona 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 Kailua-Kona to Ontario departing on 2/4. 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 Kailua-Kona to Ontario, 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 Kailua-Kona to Ontario, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$281
Alaska Airlines
Wed 1/21Wed 1/28
KOA - ONT • 1 stop
Cheapest one-way
$143
Overall average: $138
Alaska Airlines
Wed 2/4
KOA - ONT • 1 stop
Top airlines
Alaska Airlines
Cheapest • from $281 (round-trip)
Southwest
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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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
Booking Insights
Flight Deals

Cheap Flights from Kailua-Kona to Ontario (KOA-ONT)

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

Wed, Jan 21 - Wed, Jan 28
Alaska Airlines Logo
9:10 pm - 10:59 amKOA-ONT
11h 49m1 stop
Alaska Airlines Logo
8:13 am - 4:00 pmONT-KOA
9h 47m1 stop
$281Alaska Airlines
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Thu, Jan 15 - Tue, Jan 20
Alaska Airlines Logo
7:30 am - 10:28 pmKOA-ONT
12h 58m1 stop
Alaska Airlines Logo
8:13 am - 4:00 pmONT-KOA
9h 47m1 stop
$332Alaska Airlines
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Mon, Dec 22 - Wed, Dec 31
American Airlines Logo
10:55 pm - 8:48 amKOA-ONT
7h 53m1 stop
American Airlines Logo
9:53 am - 6:51 pmONT-KOA
10h 58m1 stop
$358American Airlines
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Wed, Jan 7 - Mon, Jan 12
Alaska Airlines Logo
9:10 pm - 10:59 amKOA-ONT
11h 49m1 stop
Alaska Airlines Logo
8:13 am - 4:00 pmONT-KOA
9h 47m1 stop
$386Alaska Airlines
Find Deal
Thu, Jan 15 - Sat, Jan 17
Alaska Airlines Logo
8:36 am - 10:28 pmKOA-ONT
11h 52m1 stop
Alaska Airlines Logo
4:03 pm - 9:30 pmONT-KOA
31h 27m1 stop
$449Alaska Airlines
Find Deal
Mon, Dec 22 - Wed, Dec 31
American Airlines Logo
10:09 pm - 8:48 amKOA-ONT
8h 39m1 stop
American Airlines Logo
9:53 am - 6:51 pmONT-KOA
10h 58m1 stop
$457American Airlines
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Thu, Jan 15 - Sat, Jan 17
Delta Logo
8:45 pm - 10:51 pmKOA-ONT
24h 06m1 stop
Delta Logo
3:30 pm - 4:00 pmONT-KOA
26h 30m2 stops
$500Delta
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Tue, Jan 6 - Tue, Jan 13
Alaska Airlines Logo
12:22 pm - 10:08 pmKOA-ONT
7h 46m1 stop
Alaska Airlines Logo
8:13 am - 4:00 pmONT-KOA
9h 47m1 stop
$508Alaska Airlines
Find Deal
Sun, Dec 7 - Thu, Dec 11
Alaska Airlines Logo
11:00 am - 8:23 pmKOA-ONT
7h 23m1 stop
Alaska Airlines Logo
6:00 am - 2:40 pmONT-KOA
10h 40m1 stop
$553Alaska Airlines
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Fri, Mar 13 - Sun, Mar 22
Alaska Airlines Logo
9:17 pm - 11:08 amKOA-ONT
10h 51m1 stop
Alaska Airlines Logo
11:30 am - 9:41 pmONT-KOA
13h 11m1 stop
$592Alaska Airlines
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Booking Insights

KAYAK's insights & trends for Kailua-Kona to Ontario flights

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

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

When flying from Kailua-Kona to Ontario, you should consider leaving on a Thursday and avoid Sundays if you are looking for the best rates. For your return to Kailua-Kona, you’ll find the best rates on Sundays and the most expensive ones on Fridays.

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Good to know

Low seasonAugust
Cheapest flight$143
Best time to beat the crowds with an average 28% drop in price.
Most popular time to fly and prices are also 28% lower on average.
Flight from Kailua-Kona to Ontario

When to book flights from Kailua-Kona to Ontario

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

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

    In the last 3 days, the lowest price for a flight from Kailua-Kona to Ontario was $143 for a one-way ticket and $281 for a round-trip.

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

    Kailua-Kona and Ontario are both served by 1 main airport. You will leave Kailua-Kona from Kona Intl and will be arriving at Ontario.

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

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

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

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

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

Reviews of the top airline flying from Kailua-Kona to Ontario

 
See real verified KAYAK customer reviews for airlines flying from Kailua-Kona 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 Kailua-Kona 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 4252 reviews
8.0Comfort
8.6Crew
7.5Entertainment
8.1Boarding
7.0Food
Airline reviews

San Diego airport is brand new, spacious, airy and very smooth checkin at SW baggage drop.

10.0 ExcellentGordon, Nov 2025SAN - OAK
Read more Southwest reviews

San Diego airport is brand new, spacious, airy and very smooth checkin at SW baggage drop.

Ever since Southwest starting charging for bags, passengers don't want to pay to check their bags, so the gate agents have to beg people to check their roller bags now because there's "not enough space". This was a terrible business move by Southwest.

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.

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

Information on your arrival and departure airports

Kailua-Kona (KOA)
Ontario (ONT)