What is the cheapest airline that flies from Ontario to Kona Intl?

Alaska Airlines is the most popular carrier operating from Ontario to Kona Intl

Which layover airport has the shortest connection time from Ontario to Kailua-Kona?

Honolulu (HNL) has the shortest average layover time for this route: 1h 44m.

Which layover airport offers the lowest fares from Ontario to Kailua-Kona?

Flights via Honolulu (HNL) offer the lowest average round-trip price of $435.

Which layover airport has the shortest travel time from Ontario to Kailua-Kona?

Flights connecting via Honolulu (HNL) have the shortest average one-way travel time: 9h 25m.

What airlines fly to Kailua-Kona?

United Airlines, Alaska Airlines and American Airlines are the top three most popular airlines that fly to Kailua-Kona from Ontario according to our data. United Airlines is the first choice among our users, with 37% of people opting to fly with this airline when traveling to Kailua-Kona. Keep in mind that there are 7 different airlines that fly to Kailua-Kona on a routine basis, so you have a few additional options to choose from.

Which airport is the most popular layover for flights between Ontario and Kailua-Kona?

Honolulu (HNL) was the most common stop: 75% of momondo users choosing 1-stop flights on this route connected there.

When did momondo last update prices for flights from Ontario Airport to Kona Intl Airport?

Prices for flights from Ontario Airport to Kona Intl Airport were last updated today.

How many operators does momondo search for flights from Ontario Airport to Kona Intl Airport?

As of July 2026, there are 3 operators available to choose from for flights from Ontario Airport to Kona Intl Airport.

How old do you have to be to fly from Ontario Airport to Kona Intl Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ontario Airport to Kona Intl Airport.

What documentation or ID do you need to fly to Kona Intl Airport?

The necessary travel and health documents for your Kona Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$210 Cheap Flights from Ontario to Kailua-Kona in 2026

Q: What is the typical price of a round-trip flight between Ontario and Kailua-Kona?

Prices are currently low for flights on this route. Typical prices usually range from $489 to $643. The lowest price recently found on this route was $335.

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Ontario to Kailua-Kona

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:00 am - 6:05 pm

ONT

KOA

13h 05m

1 stop

8:00 am - 8:10 pm

KOA

ONT

9h 10m

1 stop

$335Southwest

Mon, Aug 24 - Thu, Aug 27

6:20 am - 5:31 pm

ONT

KOA

14h 11m

1 stop

8:50 pm - 12:14 pm

KOA

ONT

12h 24m

2 stops

$350Delta

Wed, Sep 16 - Wed, Sep 23

6:00 am - 5:35 pm

ONT

KOA

14h 35m

2 stops

8:42 pm - 12:16 pm

KOA

ONT

12h 34m

2 stops

$355Delta

Mon, Aug 24 - Thu, Aug 27

8:00 am - 6:05 pm

ONT

KOA

13h 05m

1 stop

8:35 pm - 11:50 am

KOA

ONT

12h 15m

2 stops

$387Southwest

Mon, Aug 24 - Thu, Aug 27

9:11 am - 5:12 pm

ONT

KOA

11h 01m

1 stop

9:48 am - 10:10 pm

KOA

ONT

9h 22m

1 stop

$419Multiple Airlines

Mon, Aug 17 - Tue, Aug 25

9:11 am - 7:31 pm

ONT

KOA

13h 20m

1 stop

7:15 pm - 10:10 pm

KOA

ONT

23h 55m

1 stop

$420Multiple Airlines

Mon, Aug 17 - Mon, Aug 24

9:31 am - 2:08 pm

ONT

KOA

7h 37m

1 stop

10:25 pm - 11:04 am

KOA

ONT

9h 39m

1 stop

$423Multiple Airlines

Thu, Aug 20 - Wed, Aug 26

12:12 pm - 7:27 pm

ONT

KOA

10h 15m

1 stop

8:18 am - 10:10 pm

KOA

ONT

10h 52m

1 stop

$424Multiple Airlines

Wed, Sep 16 - Wed, Sep 23

2:05 pm - 10:10 pm

ONT

KOA

11h 05m

1 stop

7:15 pm - 10:10 pm

KOA

ONT

23h 55m

1 stop

$425Multiple Airlines

Sun, Aug 16 - Mon, Aug 24

10:47 am - 11:06 am

ONT

KOA

27h 19m

1 stop

6:00 am - 10:10 pm

KOA

ONT

13h 10m

1 stop

$427Multiple Airlines

Sat, Sep 26 - Wed, Sep 30

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Delta flights from Ontario to Kailua-Kona

Our best Delta deals on Ontario to Kailua-Kona flight tickets

Delta

Sep 16

ONT6:20 amOntario

14h 11m

1 stop

KOA5:31 pmKona Intl

Sep 23

KOA8:50 pmKona Intl

12h 24m

2 stops

ONT12:14 pmOntario

$350

Delta

Aug 24

ONT6:00 amOntario

14h 35m

2 stops

KOA5:35 pmKona Intl

Aug 27

KOA8:42 pmKona Intl

12h 34m

2 stops

ONT12:16 pmOntario

$355

Delta

Sep 16

ONT6:20 amOntario

14h 11m

1 stop

KOA5:31 pmKona Intl

Sep 23

KOA8:50 pmKona Intl

12h 24m

2 stops

ONT12:14 pmOntario

$434

Alaska Airlines flights from Ontario to Kailua-Kona

Our best Alaska Airlines deals on Ontario to Kailua-Kona flight tickets

Alaska Airlines

Sep 14

ONT12:12 pmOntario

10h 15m

1 stop

KOA7:27 pmKona Intl

Sep 18

KOA10:25 pmKona Intl

9h 51m

1 stop

ONT11:16 amOntario

$428

Alaska Airlines

Aug 9

ONT2:05 pmOntario

11h 05m

1 stop

KOA10:10 pmKona Intl

Aug 12

KOA9:19 pmKona Intl

10h 55m

1 stop

ONT11:14 amOntario

$431

Alaska Airlines

Aug 20

ONT12:00 pmOntario

10h 25m

1 stop

KOA7:25 pmKona Intl

Aug 26

KOA10:25 pmKona Intl

9h 39m

1 stop

ONT11:04 amOntario

$433

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioKailua-Kona

ONT - KOA

ONTKOA

Ontario

Mon 8/24

8:00 am-6:05 pm

1 stop13h 05m

Kona Intl

Thu 8/27

8:00 am-8:10 pm

1 stop9h 10m

$335

OntarioKailua-Kona

ONT - KOA

ONTKOA

Ontario

Wed 9/16

6:20 am-5:31 pm

1 stop14h 11m

Kona Intl

Wed 9/23

8:50 pm-12:14 pm

2 stops12h 24m

$350

OntarioKailua-Kona

ONT - KOA

ONTKOA

Ontario

Mon 8/24

6:00 am-5:35 pm

2 stops14h 35m

Kona Intl

Thu 8/27

8:42 pm-12:16 pm

2 stops12h 34m

$355

OntarioKailua-Kona

ONT - KOA

ONTKOA

Ontario

Mon 8/24

8:00 am-6:05 pm

1 stop13h 05m

Kona Intl

Thu 8/27

8:35 pm-11:50 am

2 stops12h 15m

$387

OntarioKailua-Kona

ONT - KOA

ONTKOA

Ontario

Mon 8/17

9:11 am-5:12 pm

1 stop11h 01m

Kona Intl

Tue 8/25

9:48 am-10:10 pm

1 stop9h 22m

$419

OntarioKailua-Kona

ONT - KOA

ONTKOA

Ontario

Mon 8/17

9:11 am-7:31 pm

1 stop13h 20m

Kona Intl

Mon 8/24

7:15 pm-10:10 pm

1 stop23h 55m

$420

Quickest round-trip

OntarioKailua-Kona

ONT - KOA

ONTKOA

Ontario

Thu 8/20

9:31 am-2:08 pm

1 stop7h 37m

Kona Intl

Wed 8/26

10:25 pm-11:04 am

1 stop9h 39m

$423

OntarioKailua-Kona

ONT - KOA

ONTKOA

Ontario

Wed 9/16

12:12 pm-7:27 pm

1 stop10h 15m

Kona Intl

Wed 9/23

8:18 am-10:10 pm

1 stop10h 52m

$424

OntarioKailua-Kona

ONT - KOA

ONTKOA

Ontario

Sun 8/16

2:05 pm-10:10 pm

1 stop11h 05m

Kona Intl

Mon 8/24

7:15 pm-10:10 pm

1 stop23h 55m

$425

OntarioKailua-Kona

ONT - KOA

ONTKOA

Ontario

Sat 9/26

10:47 am-11:06 am

1 stop27h 19m

Kona Intl

Wed 9/30

6:00 am-10:10 pm

1 stop13h 10m

$427

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Ontario to Kailua-Kona

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Layovers

What is the typical price of a round-trip flight between Ontario and Kailua-Kona?

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

The cheapest month to fly to Kailua-Kona from Ontario is in January. Flight prices, which tend to average around $369, are often lower during this time because this is during the off-season. The month of October is another great option to travel to Kailua-Kona, with average flight prices from Ontario averaging around $398.

What is the cheapest day to depart on your flight to Kailua-Kona?

The cheapest day to depart on your flight to Kailua-Kona is on a Thursday when prices can be found for as low as $408. This is often the case because there is less demand to fly during this day of the week. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to Kailua-Kona on Saturday is $527.

What is the cheapest time of day to depart on your flight to Kailua-Kona?

Flying to Kailua-Kona from Ontario in the morning is the least expensive time of day to depart. momondo users have found prices as low as $432 when looking at flights departing in the morning. In contrast, the most expensive time of day to depart to Kailua-Kona is in the afternoon when prices are around $511.

Can stopping save me money on Ontario to Kailua-Kona flights?

You could potentially save up to 3% on your flight if you consider stops on a Ontario to Kailua-Kona flight.

How have Ontario to Kailua-Kona flight prices changed over time?

As of July 2026, prices for Ontario to Kailua-Kona flights are approximately 96% more expensive when compared to flights at the same time last year.

When to book flights from Ontario to Kailua-Kona

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Kailua-Kona according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Ontario to Kailua-Kona (ONT to KOA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Kailua-Kona

Fastest flight time	7h 41m
Direct flights	None

The fastest flight from Ontario to Kailua-Kona takes 7h 41m

There are no direct flights from Ontario to Kailua-Kona. There are no popular flight routes from Ontario to Kailua-Kona.

Search flight deals

Frequently asked questions about flying from Ontario to Kailua-Kona

How far is Ontario to Kona Intl by plane?
A flight from Ontario to Kona Intl will travel around 2544.2 mi. A reasonable flight in good conditions will take 7h 41m.
When did momondo last update prices for flights from Ontario Airport to Kona Intl Airport?
Prices for flights from Ontario Airport to Kona Intl Airport were last updated today.
How many operators does momondo search for flights from Ontario Airport to Kona Intl Airport?
As of July 2026, there are 3 operators available to choose from for flights from Ontario Airport to Kona Intl Airport.
How old do you have to be to fly from Ontario Airport to Kona Intl Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ontario Airport to Kona Intl Airport.
What documentation or ID do you need to fly to Kona Intl Airport?
The necessary travel and health documents for your Kona Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Ontario to Kailua-Kona?
momondo data reveals that the most frequently booked airline on the route from Ontario to Kailua-Kona is United Airlines, representing 34% of all bookings. The subsequent popular airlines are Southwest at 34% and Alaska Airlines at 31%.

Best airlines flying from Ontario to Kailua-Kona

Compare and see reviews for airlines that fly from Ontario to Kailua-Kona with momondo

Airline	Rating	Free Cancellation	Price
Alaska Airlines	PriceFrom $309	Free Cancellation	Rating 7.9 12,634 reviews	Search Alaska Airlines flights
United Airlines	PriceFrom $335	Free Cancellation	Rating 7.4 9,947 reviews	Search United Airlines flights
Southwest	PriceFrom $365	Free Cancellation	Rating 7.9 4,250 reviews	Search Southwest flights

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Kailua-Kona?

Finding the right flight to Kailua-Kona from Ontario is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Kailua-Kona quick and easy, saving you time and money.

Can I find flights from Ontario to Kailua-Kona with flexible booking policies on momondo?

All flight searches from Ontario to Kailua-Kona on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Ontario to Kailua-Kona?

Once you have performed a search for Ontario to Kailua-Kona flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Ontario to Kailua-Kona right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Kailua-Kona, momondo offers a useful price alert feature which will track prices for flights to Kailua-Kona from Ontario and alert you when they change.