ONT - KOA

$209 Find Cheap Flights from Ontario to Kailua-Kona - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$398
Typical prices: $428-$597
Multiple Airlines
Fri 2/9Fri 2/23
ONT - KOA • 1 stop
Cheapest one-way
$209
Typical prices: $256-$327
Multiple Airlines
Fri 1/19
ONT - KOA • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Ontario and Kailua-Kona. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
November
Cheapest • 20% price drop
June
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Seattle/Tacoma Intl (SEA)
Cheapest • Avg $483 (round-trip)
Sacramento Intl (SMF)
Shortest trip • 8h 06m (one-way)
Insights
Insights
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We hope you love your trip to Kailua-Kona!
Flight Deals
Booking Insights
Flight Deals

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

 
Discover the best prices for you by selecting your travel dates on KAYAK.

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

Tue, Feb 9 - Tue, Feb 23
Multiple Airlines Logo
7:00 am - 9:50 pmONT  Ontario-KOA Kona Intl
16h 50m1 stop Honolulu
Multiple Airlines Logo
11:25 am - 9:28 pmKOA  Kona Intl-ONT Ontario
8h 03m1 stop Honolulu
$398Multiple Airlines
Tue, Feb 9 - Thu, Feb 25
Multiple Airlines Logo
7:00 am - 7:35 pmONT  Ontario-KOA Kona Intl
14h 35m1 stop Honolulu
Multiple Airlines Logo
12:18 pm - 9:28 pmKOA  Kona Intl-ONT Ontario
7h 10m1 stop Honolulu
$398Multiple Airlines
Wed, Dec 2 - Tue, Dec 8
Delta Logo
6:00 am - 2:55 pmONT  Ontario-KOA Kona Intl
10h 55m1 stop Salt Lake City
Delta Logo
9:40 pm - 11:17 amKOA  Kona Intl-ONT Ontario
11h 37m1 stop Seattle/Tacoma Intl
$426Delta
Mon, Nov 30 - Wed, Dec 9
Delta Logo
6:00 am - 2:41 pmONT  Ontario-KOA Kona Intl
10h 41m1 stop Salt Lake City
Delta Logo
9:40 pm - 11:17 amKOA  Kona Intl-ONT Ontario
11h 37m1 stop Seattle/Tacoma Intl
$426Delta
Sun, Jan 10 - Fri, Jan 15
Southwest Logo
8:25 am - 4:55 pmONT  Ontario-KOA Kona Intl
10h 30m2 stops San Jose Honolulu
Southwest Logo
10:50 am - 10:25 pmKOA  Kona Intl-ONT Ontario
9h 35m1 stop Honolulu
$427Southwest
Sun, Dec 6 - Fri, Dec 11
Alaska Airlines Logo
6:00 am - 6:24 pmONT  Ontario-KOA Kona Intl
14h 24m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
7:00 am - 10:59 pmKOA  Kona Intl-ONT Ontario
13h 59m1 stop Seattle/Tacoma Intl
$428Alaska Airlines
Tue, Jan 19 - Wed, Jan 27
Southwest Logo
7:20 am - 4:55 pmONT  Ontario-KOA Kona Intl
11h 35m2 stops Sacramento Intl Honolulu
Southwest Logo
9:25 pm - 11:35 amKOA  Kona Intl-ONT Ontario
12h 10m1 stop Las Vegas Harry Reid Intl
$432Southwest
Sun, Dec 6 - Thu, Dec 10
Alaska Airlines Logo
6:00 am - 6:24 pmONT  Ontario-KOA Kona Intl
14h 24m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
7:00 am - 10:59 pmKOA  Kona Intl-ONT Ontario
13h 59m1 stop Seattle/Tacoma Intl
$433Alaska Airlines
Wed, Apr 28 - Wed, May 5
United Airlines Logo
1:33 pm - 7:25 pmONT  Ontario-KOA Kona Intl
8h 52m1 stop San Francisco
United Airlines Logo
12:00 pm - 11:06 pmKOA  Kona Intl-ONT Ontario
8h 06m1 stop San Francisco
$468United Airlines
Sun, Feb 7 - Wed, Feb 17
United Airlines Logo
7:25 am - 1:58 pmONT  Ontario-KOA Kona Intl
8h 33m1 stop San Francisco
United Airlines Logo
11:59 pm - 10:22 amKOA  Kona Intl-ONT Ontario
8h 23m1 stop San Francisco
$556United Airlines
Booking Insights

Price, demand and travel trends for Ontario to Kailua-Kona flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

What's the cheapest day of the week to fly from Ontario to Kailua-Kona?

Based on deals KAYAK users found in the last 12 months, Thursday is the cheapest day of the week to fly from Ontario to Kailua-Kona. It’s 9% cheaper than the average day, while Sunday is the most expensive, with prices 18% higher.

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

•November is the cheapest month to fly from Ontario to Kailua-Kona at $395 round-trip.
•June ($621) and September ($591) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 57% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

Find deals

Key details for Ontario to Kailua-Kona flights

Low season

October

Cheapest flight

$209
Beat the crowds with an average 57% drop in travelers.
The most popular month to fly with an average 64% increase in travelers.
One-way 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

Your Ontario to Kailua-Kona flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What cabin classes can I book on flights from Ontario to Kailua-Kona?

    Two cabin classes are available on flights from Ontario to Kailua-Kona:

    • Economy Class
    • First Class

  • How long is a flight from Ontario to Kailua-Kona?

    A nonstop flight from Ontario to Kailua-Kona takes 00m, covering 2,547 miles.

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

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

  • How much should I expect to pay for a Ontario to Kailua-Kona flight?

    Round-trip flights from Ontario to Kailua-Kona range from $428 to $597, with an average of $493 over the past 12 months. Anything below $428 counts as a good deal.

  • Have flight prices from Ontario to Kailua-Kona changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $398 to $2,740. That means the highest observed fare was about 7x higher than the lowest one.

  • How are flight prices from Ontario to Kailua-Kona looking right now?

    One-way fares from Ontario to Kailua-Kona are currently lower than usual. Average one-way flight prices are about $256, which is 8% below the typical average for this route.

  • What car rental options are available at Kona Intl Airport (KOA)?

    Kona Intl Airport (KOA) hosts 5 major car rental companies, with daily rates averaging $67 for economy cars. Top options include:

    • Dollar
    • Thrifty
    • Budget
    • Hertz
    • Sixt

  • Which airports can I use when flying from Ontario to Kailua-Kona?

    Flights from Ontario to Kailua-Kona usually depart from Ontario (ONT) and arrive at Kona Intl (KOA).

  • Which airports do connecting flights from Ontario to Kailua-Kona pass through?

    One-stop flights from Ontario to Kailua-Kona most commonly connect through:

    • San Francisco (SFO) - 42% of one-stop connections
    • Honolulu (HNL) - 30% of one-stop connections
    • Sacramento Intl (SMF) - 17% of one-stop connections
    • Seattle/Tacoma Intl (SEA) - 12% of one-stop connections

  • Can I save money by using flexible dates for flights from Ontario to Kailua-Kona?

    Yes. Flexible dates can save you up to 23% on flights from Ontario to Kailua-Kona. Thursday is the cheapest departure day at $453 round-trip on average, while Sunday is the most expensive at $585, a difference of $132.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How much time can I save by choosing a different layover airport from Ontario to Kailua-Kona?

    Flying via Sacramento Intl (SMF) gives the shortest average 1-stop total travel time at 8h 06m, compared with 8h 40m via San Francisco (SFO) and 8h 52m via Honolulu (HNL).

  • What is the time difference between Ontario and Kailua-Kona?

    Kailua-Kona is 2 hours behind Ontario (Hawaii-Aleutian Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

Your guide to booking Ontario to Kailua-Kona flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Thursday departure and avoid flying on Sunday. On this route, Thursday flights average $453, about $132 less than Sunday fares (23% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Ontario to Kailua-Kona trip for November. Fares historically average $395 round-trip in that month - typically $226 less than the most expensive month, which is June (based on the last 12 months).

More options for your flight from Ontario to Kailua-Kona

Complete your trip to Kailua-Kona with a hotel stay or car rental

Car rentals in Kailua-Kona
Hotels in Kailua-Kona
Vacations in Kailua-Kona