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

Compare Ontario International to Kona flight deals

Find the cheapest month or even day of the year to fly to Kona

Book the best Kona fare with no extra fees

Flight deals from Ontario International to Kona

Looking for a cheap last-minute deal or the best return flight from Ontario International to Kona? Find the lowest prices on one-way and return tickets right here.
Kailua-Kona.$538 per passenger.Departing Thu, 6 Nov, returning Thu, 20 Nov.Return flight with Hawaiian Airlines.Outbound indirect flight with Hawaiian Airlines, departs from Ontario International on Thu, 6 Nov, arriving in Kona.Inbound indirect flight with Hawaiian Airlines, departs from Kona on Thu, 20 Nov, arriving in Ontario International.Price includes taxes and charges.From $538, select.
Kailua-Kona.$550 per passenger.Departing Sun, 5 Oct, returning Fri, 10 Oct.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Ontario International on Sun, 5 Oct, arriving in Kona.Inbound indirect flight with Southwest Airlines, departs from Kona on Fri, 10 Oct, arriving in Ontario International.Price includes taxes and charges.From $550, select.
Kailua-Kona.$550 per passenger.Departing Wed, 3 Sep, returning Thu, 11 Sep.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Ontario International on Wed, 3 Sep, arriving in Kona.Inbound indirect flight with Southwest Airlines, departs from Kona on Thu, 11 Sep, arriving in Ontario International.Price includes taxes and charges.From $550, select.
Kailua-Kona.$550 per passenger.Departing Tue, 26 Aug, returning Tue, 2 Sep.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Ontario International on Tue, 26 Aug, arriving in Kona.Inbound indirect flight with Southwest Airlines, departs from Kona on Tue, 2 Sep, arriving in Ontario International.Price includes taxes and charges.From $550, select.
Kailua-Kona.$550 per passenger.Departing Tue, 23 Sep, returning Thu, 2 Oct.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Ontario International on Tue, 23 Sep, arriving in Kona.Inbound indirect flight with Southwest Airlines, departs from Kona on Thu, 2 Oct, arriving in Ontario International.Price includes taxes and charges.From $550, select.
Kailua-Kona.$550 per passenger.Departing Mon, 18 Aug, returning Tue, 19 Aug.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Ontario International on Mon, 18 Aug, arriving in Kona.Inbound indirect flight with Southwest Airlines, departs from Kona on Tue, 19 Aug, arriving in Ontario International.Price includes taxes and charges.From $550, select.
Kailua-Kona.$550 per passenger.Departing Tue, 28 Oct, returning Wed, 5 Nov.Return flight with Delta.Outbound indirect flight with Delta, departs from Ontario International on Tue, 28 Oct, arriving in Kona.Inbound indirect flight with Delta, departs from Kona on Wed, 5 Nov, arriving in Ontario International.Price includes taxes and charges.From $550, select.
Kailua-Kona.$550 per passenger.Departing Wed, 14 Jan, returning Wed, 21 Jan.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Ontario International on Wed, 14 Jan, arriving in Kona.Inbound indirect flight with Southwest Airlines, departs from Kona on Wed, 21 Jan, arriving in Ontario International.Price includes taxes and charges.From $550, select.

Find the cheapest month to fly from Ontario International to Kona

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Ontario International to Kona flights are currently cheapest in November.
Jul
from $794
Aug
from $550
Sep
from $550
Oct
from $550
Nov
from $538
Dec
from $605
Jan
from $550
Feb
Find prices
Mar
from $773
Apr
Find prices
May
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Jun
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Ontario International to Kona: Alternative routes

Compare routes from Ontario International to Kailua-Kona below. You may find an airport to fly into that's cheaper, faster, or easier than Kona.

Ontario to Kailua-Kona: Flight information

The things to know before you go.
Cheapest flight found$538
Cheapest month to flyNovember

Finding cheap flights from Ontario International to Kona: Frequently asked questions

The best price we found for a return flight from Ontario International to Kona is $538. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Ontario International to Kona. But we found flights with one or more stops from $538.
As of July 2025, there are no flights flying from Ontario International to Kona.
The cheapest month to fly from Ontario International to Kona is usually November.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Ontario International Airport to Kona Airport on Thursday, 6 November 2025.
No airlines currently offer direct flights between Ontario International Airport and Kona Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Kona but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Kailua-Kona is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Hawaiian Airlines offers the cheapest flight tickets to Kona.

Flying from Ontario International Airport (ONT) to Kona International Airport at Keahole (KOA): what you need to know

  • Kailua-Kona's timezone is UTC-10, making Kailua-Kona three hours behind Ontario.

  • Arrive at the airport on time so you don't miss your ONT to KOA flight. Be there at least two hours ahead for international flights and an hour early for domestic departures to avoid a last-minute sprint to the gate.

  • You can expect longer queues in popular months such as August. Arriving up to four hours in advance for an international flight and two hours for domestic departures is a smart move.

  • Think about adding a stopover when booking your ticket from Ontario International Airport to Kona International Airport at Keahole. Just uncheck 'Direct flights only' to break up your journey, or visit a new city along the way. Here's where you can stop between ONT and KOA:

    • Daniel K. Inouye International Airport

    • Metropolitan Oakland International Airport

    • San Francisco International Airport

How to find the cheapest flights from Ontario International Airport (ONT) to Kona International Airport at Keahole (KOA)

  • The lowest price we've seen for a one-way Ontario International Airport to Kona International Airport at Keahole flight is $275. A round-trip fare right now is $538. Depending on the availability and when you book, these fares can change.

  • Don't wait until the last moment. You're more likely to get cheap tickets from ONT to KOA if you book early. Airlines often have some fantastic early bird rates.

  • The 'Whole month' tool shows you the cheapest flights from Ontario International Airport to Kona International Airport at Keahole throughout the entire month. It's an easy way to snap up a bargain if your dates are flexible.

  • You don't need to check every day to see if fares have gone down when you set up a Price Alert. We'll let you know as soon as there's a better deal on cheap flights from ONT to KOA.

  • Tailor your flights with filters. Choose your ideal departure and arrival times, airlines and total journey duration. You can also sort results by 'Best,' 'Cheapest' or 'Fastest' flights from Ontario International Airport to Kona International Airport at Keahole.

Handy information about Ontario International Airport (ONT)

  • You'll find ONT at 2900 E. Airport Drive.

  • Ontario International Airport gets high marks for its on-time performance. 83.6% of flights that take off from ONT arrive at their destination as scheduled.

  • Central Ontario to Ontario International Airport is approximately 6 kilometres. Depending on traffic, it'll take about 10 minutes to get there if you're driving, ride-sharing or catching a cab.

  • Expect a trip time of about 1 hour 30 minutes on public transport.

  • Searching for a handy hotel close to ONT? If you've booked an early flight from Ontario International Airport to Kona International Airport at Keahole, these stays will have you moments from your check-in counter:

Arriving at Kona International Airport at Keahole (KOA)

  • Consider staying at Banyan Tree Sanctuary Guest House after your Ontario International Airport to Kona International Airport at Keahole flight. It's not too far from KOA and a great option if you're eager to relax as soon as possible.

  • Hit the road running by picking up a Kona International Airport at Keahole rental car. Grab a set of wheels from Dollar, Hertz or Thrifty and experience the lesser-explored corners of Kailua-Kona and beyond.

  • Get the best deal by booking your vehicle from Kona International Airport at Keahole about one week ahead of your trip.

Getting from Kona International Airport at Keahole (KOA) to central Kailua-Kona

  • Kona International Airport at Keahole to central Kailua-Kona has a drive time of about 15 minutes. It's approximately 13 kilometres away.

  • Travelling on public transport takes about 30 minutes.

When to fly to Kona International Airport at Keahole (KOA)

  • It's time to work out your travel dates for your flight from Ontario International Airport to Kona International Airport at Keahole. July is the most popular month to visit Kailua-Kona. If you're after a more laid-back vibe, go in May.

  • Book your flight from Ontario International Airport to Kona International Airport at Keahole for August if you'd like to visit Kailua-Kona during its warmest month. Expect temperatures of between 17ºC (63ºF) and 25ºC (77ºF).

  • Look for cheap tickets from ONT to KOA in January if you want to travel in cooler conditions. Temperatures are at their lowest then, ranging between 13ºC (55ºF) and 21ºC (70ºF) on average.

Explore more of United States

  • Honolulu is just one of the many cities in United States waiting to be discovered once you've seen the sights of Kailua-Kona. Around 274 kilometres away to the north-west, well-known attractions include Waikiki Beach, USS Arizona Memorial and Iolani Palace.

  • Around 290 kilometres north-west of Kailua-Kona, Pearl City is another essential stop in United States. Start your sightseeing at USS Utah Memorial, Sunset Memorial Park and Pearl City District Park.

Plan the rest of your trip from Ontario to Kailua-Kona

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.