ONT - KOA

$172 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
$344
Typical prices: $412-$594
Delta
Sun 12/2Mon 12/3
ONT - KOA • 1 stop
Cheapest one-way
$172
Typical prices: $256-$322
Delta
Thu 10/18
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 • 19% price drop
June
Most popular
Good to know
+1
Good to know
+1
Top layover airports
San Francisco (SFO)
Cheapest • Avg $495 (round-trip)
Sacramento Intl (SMF)
Shortest trip • 8h 10m (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

Wed, Sep 16 - Tue, Sep 22
Delta Logo
6:00 am - 5:31 pmONT  Ontario-KOA Kona Intl
14h 31m1 stop Seattle/Tacoma Intl
Delta Logo
8:55 pm - 11:14 amKOA  Kona Intl-ONT Ontario
11h 19m1 stop Seattle/Tacoma Intl
$344Delta
Wed, Dec 2 - Tue, Dec 15
Delta Logo
7:04 am - 7:27 pmONT  Ontario-KOA Kona Intl
14h 23m1 stop Seattle/Tacoma Intl
Delta Logo
10:40 pm - 11:17 amKOA  Kona Intl-ONT Ontario
10h 37m1 stop Seattle/Tacoma Intl
$344Delta
Wed, Sep 16 - Tue, Sep 22
United Airlines Logo
6:08 am - 10:49 amONT  Ontario-KOA Kona Intl
7h 41m1 stop San Francisco
United Airlines Logo
10:50 pm - 12:12 pmKOA  Kona Intl-ONT Ontario
10h 22m1 stop San Francisco
$344United Airlines
Wed, Sep 16 - Wed, Sep 23
Southwest Logo
5:45 am - 12:45 pmONT  Ontario-KOA Kona Intl
10h 00m1 stop Las Vegas Harry Reid Intl
Southwest Logo
10:00 am - 8:10 pmKOA  Kona Intl-ONT Ontario
7h 10m1 stop Sacramento Intl
$351Southwest
Sun, Sep 20 - Wed, Sep 23
United Airlines Logo
6:08 am - 10:49 amONT  Ontario-KOA Kona Intl
7h 41m1 stop San Francisco
United Airlines Logo
10:50 pm - 12:18 pmKOA  Kona Intl-ONT Ontario
10h 28m1 stop San Francisco
$374United Airlines
Fri, Sep 11 - Mon, Sep 14
Southwest Logo
8:00 am - 2:10 pmONT  Ontario-KOA Kona Intl
9h 10m1 stop Honolulu
Southwest Logo
6:05 am - 8:15 pmKOA  Kona Intl-ONT Ontario
11h 10m1 stop Honolulu
$395Southwest
Wed, Jan 27 - Wed, Feb 3
Multiple Airlines Logo
8:39 am - 5:17 pmONT  Ontario-KOA Kona Intl
10h 38m1 stop Honolulu
Multiple Airlines Logo
7:15 pm - 9:18 pmKOA  Kona Intl-ONT Ontario
24h 03m1 stop Honolulu
$397Multiple Airlines
Tue, Sep 15 - Thu, Sep 24
Multiple Airlines Logo
9:31 am - 9:50 pmONT  Ontario-KOA Kona Intl
15h 19m1 stop Honolulu
Multiple Airlines Logo
9:48 am - 10:10 pmKOA  Kona Intl-ONT Ontario
9h 22m1 stop Honolulu
$401Multiple Airlines
Wed, Sep 23 - Mon, Sep 28
Alaska Airlines Logo
12:12 pm - 7:27 pmONT  Ontario-KOA Kona Intl
10h 15m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
10:25 pm - 11:16 amKOA  Kona Intl-ONT Ontario
9h 51m1 stop Seattle/Tacoma Intl
$440Alaska Airlines
Tue, Sep 15 - Mon, Sep 21
Alaska Airlines Logo
12:12 pm - 7:27 pmONT  Ontario-KOA Kona Intl
10h 15m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
10:25 pm - 11:16 amKOA  Kona Intl-ONT Ontario
9h 51m1 stop Seattle/Tacoma Intl
$440Alaska 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 from Ontario to Kailua-Kona with more confidence.

How much is a round-trip flight from Ontario to Kailua-Kona?

Round-trip flights from Ontario to Kailua-Kona start at $344. Prices are below average for this route right now, with typical round-trip fares ranging from $412 to $594. The lowest price found in the past 5 days was $344 on Delta.

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

Thursday is the cheapest day of the week to fly from Ontario to Kailua-Kona, it is 12% cheaper than the average day. Saturday is the most expensive day with flight prices 20% higher than average. Based on deals found by KAYAK users in the last 12 months.

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

  • November is the cheapest month to fly from Ontario to Kailua-Kona at $400 round-trip.
  • December ($833) and June ($621) are the most expensive months.
  • The price difference between flying in the cheapest and most expensive months is 108% 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

November

Cheapest flight

$172
Best time to beat the crowds with an average 19% drop in price.
Most popular time to fly with an average 26% increase in price.
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 route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • 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).

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

    Only Economy Class is available on flights from Ontario to Kailua-Kona.

  • 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) - 25% of one-stop connections
    • Sacramento Intl (SMF) - 19% of one-stop connections
    • Seattle/Tacoma Intl (SEA) - 11% of one-stop connections

    San Francisco (SFO) handles the largest share of one-stop connections on this route.

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

    Yes. Being flexible with your travel dates can save you up to 27% on the Ontario to Kailua-Kona route. Thursday is the cheapest departure day at $435 round-trip on average, while Saturday is the most expensive at $591, a difference of $156. 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 long is a flight from Ontario to Kailua-Kona?

    A nonstop flight from Ontario to Kailua-Kona takes 0h 00m, covering 2,547 miles.

  • What are the earliest and latest flights from Ontario to Kailua-Kona?

    These are the earliest and latest flight times available from Ontario to Kailua-Kona:

    • Earliest: departs at 12:00 am and lands at 12:00 am
    • Latest: departs at 12:00 am and lands at 12:00 am.

    The flight takes about 0h 00m.

  • 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.

  • 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 $344 to $2,742. That means the highest observed fare was about 8x 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 $206, which is 26% below the typical average for this route.

  • 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 10m, compared with 8h 43m via San Francisco (SFO) and 9h 07m via Honolulu (HNL).

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

    Kailua-Kona is 3 hours behind Ontario (Hawaii-Aleutian Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

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

    Kona Intl Airport (KOA) hosts 5 major car rental companies, with daily rates starting from around $28 for economy cars. Top options include:
    · Dollar
    · Thrifty
    · Budget
    · Hertz
    · Sixt

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

    Round-trip flights from Ontario to Kailua-Kona range from $412 to $594, with an average of $492 over the past 12 months. Anything below $412 counts as a good deal.

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 can be flexible, aim for a Thursday departure instead of Saturday. On this route, Thursday flights average $435 - about $156 less than Saturday (26% 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 $400 round-trip in that month - typically $433 less than the most expensive month, which is December (based on the last 12 months).

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

Information on your arrival and departure airports

Ontario (ONT)
Kailua-Kona (KOA)