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.

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

Delta and American Airlines are the most popular carriers operating from Ontario to Kona Intl

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.

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 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.

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.

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 October 2026, there are 4 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.

$221 Cheap Flights from Ontario to Kailua-Kona in 2026/27

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.

7:00 am - 6:31 pmONT Ontario-KOA Kona Intl

13h 31m1 stop Honolulu

6:00 am - 9:18 pmKOA Kona Intl-ONT Ontario

13h 18m1 stop Honolulu

$436Multiple Airlines

Tue, Jan 26 - Wed, Jan 27

7:00 am - 6:31 pmONT Ontario-KOA Kona Intl

13h 31m1 stop Honolulu

6:00 am - 9:18 pmKOA Kona Intl-ONT Ontario

13h 18m1 stop Honolulu

$436Multiple Airlines

Mon, Feb 8 - Tue, Feb 9

1:35 pm - 8:32 pmONT Ontario-KOA Kona Intl

8h 57m1 stop San Francisco

11:59 pm - 12:29 pmKOA Kona Intl-ONT Ontario

10h 30m1 stop San Francisco

$450United Airlines

Mon, Nov 16 - Thu, Nov 19

6:00 am - 11:49 amONT Ontario-KOA Kona Intl

7h 49m1 stop San Francisco

11:59 pm - 12:29 pmKOA Kona Intl-ONT Ontario

10h 30m1 stop San Francisco

$450United Airlines

Wed, Nov 11 - Wed, Nov 18

7:00 am - 6:54 pmONT Ontario-KOA Kona Intl

13h 54m1 stop Seattle/Tacoma Intl

10:45 pm - 1:57 pmKOA Kona Intl-ONT Ontario

13h 12m1 stop Seattle/Tacoma Intl

$450Delta

Sun, Jan 24 - Wed, Feb 3

7:00 am - 6:54 pmONT Ontario-KOA Kona Intl

13h 54m1 stop Seattle/Tacoma Intl

10:45 pm - 1:57 pmKOA Kona Intl-ONT Ontario

13h 12m1 stop Seattle/Tacoma Intl

$450Delta

Tue, Jan 26 - Wed, Feb 3

6:00 am - 6:24 pmONT Ontario-KOA Kona Intl

14h 24m1 stop Seattle/Tacoma Intl

11:28 pm - 11:13 amKOA Kona Intl-ONT Ontario

9h 45m1 stop Seattle/Tacoma Intl

$463Alaska Airlines

Wed, Dec 2 - Tue, Dec 8

9:00 am - 6:10 pmONT Ontario-KOA Kona Intl

11h 10m1 stop Honolulu

11:40 am - 10:10 pmKOA Kona Intl-ONT Ontario

8h 30m1 stop Honolulu

$471Southwest

Mon, Nov 9 - Mon, Nov 16

9:00 am - 6:10 pmONT Ontario-KOA Kona Intl

11h 10m1 stop Honolulu

9:30 pm - 10:30 amKOA Kona Intl-ONT Ontario

11h 00m2 stops Las Vegas Harry Reid Intl Sacramento Intl

$481Southwest

Mon, Nov 9 - Mon, Nov 16

7:00 am - 5:22 pmONT Ontario-KOA Kona Intl

12h 22m1 stop Seattle/Tacoma Intl

11:29 pm - 10:38 amKOA Kona Intl-ONT Ontario

9h 09m1 stop Seattle/Tacoma Intl

$512Alaska Airlines

Fri, Jan 29 - Fri, Jan 29

Cheap last minute flights

Enter your travel dates to find the best prices.

2:13 pm - 9:05 pmONT Ontario-KOA Kona Intl

9h 52m1 stop Seattle/Tacoma Intl

10:21 pm - 1:16 pmKOA Kona Intl-ONT Ontario

11h 55m1 stop Seattle/Tacoma Intl

$608Alaska Airlines

Sun, Oct 18 - Tue, Oct 20

2:13 pm - 9:05 pmONT Ontario-KOA Kona Intl

9h 52m1 stop Seattle/Tacoma Intl

10:21 pm - 1:16 pmKOA Kona Intl-ONT Ontario

11h 55m1 stop Seattle/Tacoma Intl

$641Alaska Airlines

Wed, Oct 21 - Wed, Oct 28

2:13 pm - 9:05 pmONT Ontario-KOA Kona Intl

9h 52m1 stop Seattle/Tacoma Intl

10:21 pm - 1:16 pmKOA Kona Intl-ONT Ontario

11h 55m1 stop Seattle/Tacoma Intl

$666Alaska Airlines

Mon, Oct 19 - Sun, Oct 25

11:13 am - 9:05 pmONT Ontario-KOA Kona Intl

12h 52m1 stop Seattle/Tacoma Intl

11:19 am - 9:29 pmKOA Kona Intl-ONT Ontario

7h 10m1 stop Honolulu

$667Multiple Airlines

Fri, Oct 16 - Fri, Oct 23

11:13 am - 9:05 pmONT Ontario-KOA Kona Intl

12h 52m1 stop Seattle/Tacoma Intl

10:21 pm - 1:16 pmKOA Kona Intl-ONT Ontario

11h 55m1 stop Seattle/Tacoma Intl

$667Alaska Airlines

Mon, Oct 19 - Sun, Oct 25

11:13 am - 9:05 pmONT Ontario-KOA Kona Intl

12h 52m1 stop Seattle/Tacoma Intl

4:16 pm - 9:29 pmKOA Kona Intl-ONT Ontario

26h 13m1 stop Honolulu

$682Multiple Airlines

Tue, Oct 20 - Sun, Oct 25

2:13 pm - 9:05 pmONT Ontario-KOA Kona Intl

9h 52m1 stop Seattle/Tacoma Intl

10:29 am - 9:29 pmKOA Kona Intl-ONT Ontario

8h 00m1 stop Honolulu

$685Multiple Airlines

Wed, Oct 21 - Fri, Oct 23

4:03 pm - 9:27 pmONT Ontario-KOA Kona Intl

8h 24m1 stop San Francisco

12:00 pm - 10:51 pmKOA Kona Intl-ONT Ontario

7h 51m1 stop San Francisco

$718United Airlines

Mon, Oct 19 - Thu, Oct 22

4:03 pm - 9:27 pmONT Ontario-KOA Kona Intl

8h 24m1 stop San Francisco

10:59 pm - 12:29 pmKOA Kona Intl-ONT Ontario

10h 30m1 stop San Francisco

$726United Airlines

Tue, Oct 20 - Sun, Oct 25

1:52 pm - 9:27 pmONT Ontario-KOA Kona Intl

10h 35m1 stop San Francisco

10:55 pm - 12:29 pmKOA Kona Intl-ONT Ontario

10h 34m1 stop San Francisco

$728United Airlines

Wed, Oct 21 - Sat, Oct 24

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Southwest flights from Ontario to Kailua-Kona

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

Southwest

Nov 9

ONT9:00 amOntario

11h 10m

1 stop

KOA6:10 pmKona Intl

Nov 16

KOA11:40 amKona Intl

8h 30m

1 stop

ONT10:10 pmOntario

$471

Southwest

Nov 9

ONT9:00 amOntario

11h 10m

1 stop

KOA6:10 pmKona Intl

Nov 16

KOA9:30 pmKona Intl

11h 00m

2 stops

ONT10:30 amOntario

$481

Southwest

Dec 12

ONT9:00 amOntario

11h 10m

1 stop

KOA6:10 pmKona Intl

Dec 17

KOA11:40 amKona Intl

8h 30m

1 stop

ONT10:10 pmOntario

$511

Delta flights from Ontario to Kailua-Kona

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

Delta

Jan 25

ONT7:00 amOntario

13h 54m

1 stop

KOA6:54 pmKona Intl

Jan 29

KOA10:45 pmKona Intl

13h 12m

1 stop

ONT1:57 pmOntario

$450

Delta

Jan 26

ONT7:00 amOntario

13h 54m

1 stop

KOA6:54 pmKona Intl

Feb 2

KOA10:45 pmKona Intl

15h 27m

2 stops

ONT4:12 pmOntario

$456

Delta

Nov 26

ONT6:00 amOntario

10h 41m

1 stop

KOA2:41 pmKona Intl

Dec 10

KOA9:40 pmKona Intl

11h 37m

1 stop

ONT11:17 amOntario

$480

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioKailua-Kona

ONT Ontario - KOA Kona Intl

ONTKOA

Ontario

Tue 1/26

7:00 am-6:31 pm

1 stop13h 31m

Kona Intl

Wed 1/27

6:00 am-9:18 pm

1 stop13h 18m

$436

OntarioKailua-Kona

ONT Ontario - KOA Kona Intl

ONTKOA

Ontario

Mon 2/8

7:00 am-6:31 pm

1 stop13h 31m

Kona Intl

Tue 2/9

6:00 am-9:18 pm

1 stop13h 18m

$436

OntarioKailua-Kona

ONT Ontario - KOA Kona Intl

ONTKOA

Ontario

Mon 11/16

1:35 pm-8:32 pm

1 stop8h 57m

Kona Intl

Thu 11/19

11:59 pm-12:29 pm

1 stop10h 30m

$450

Quickest round-trip

OntarioKailua-Kona

ONT Ontario - KOA Kona Intl

ONTKOA

Ontario

Wed 11/11

6:00 am-11:49 am

1 stop7h 49m

Kona Intl

Wed 11/18

11:59 pm-12:29 pm

1 stop10h 30m

$450

OntarioKailua-Kona

ONT Ontario - KOA Kona Intl

ONTKOA

Ontario

Sun 1/24

7:00 am-6:54 pm

1 stop13h 54m

Kona Intl

Wed 2/3

10:45 pm-1:57 pm

1 stop13h 12m

$450

OntarioKailua-Kona

ONT Ontario - KOA Kona Intl

ONTKOA

Ontario

Tue 1/26

7:00 am-6:54 pm

1 stop13h 54m

Kona Intl

Wed 2/3

10:45 pm-1:57 pm

1 stop13h 12m

$450

OntarioKailua-Kona

ONT Ontario - KOA Kona Intl

ONTKOA

Ontario

Wed 12/2

6:00 am-6:24 pm

1 stop14h 24m

Kona Intl

Tue 12/8

11:28 pm-11:13 am

1 stop9h 45m

$463

OntarioKailua-Kona

ONT Ontario - KOA Kona Intl

ONTKOA

Ontario

Mon 11/9

9:00 am-6:10 pm

1 stop11h 10m

Kona Intl

Mon 11/16

11:40 am-10:10 pm

1 stop8h 30m

$471

OntarioKailua-Kona

ONT Ontario - KOA Kona Intl

ONTKOA

Ontario

Mon 11/9

9:00 am-6:10 pm

1 stop11h 10m

Kona Intl

Mon 11/16

9:30 pm-10:30 am

2 stops11h 00m

$481

OntarioKailua-Kona

ONT Ontario - KOA Kona Intl

ONTKOA

Ontario

Fri 1/29

7:00 am-5:22 pm

1 stop12h 22m

Kona Intl

Fri 1/29

11:29 pm-10:38 am

1 stop9h 09m

$512

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 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 $358, are often lower during this time because this is during the off-season. The month of November is another great option to travel to Kailua-Kona, with average flight prices from Ontario averaging around $395.

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 Tuesday when prices can be found for as low as $441. 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 $537.

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 $454 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 $520.

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

You could potentially save up to 30% 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 October 2026, prices for Ontario to Kailua-Kona flights are approximately 75% 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

Best Price Found	$221
Fastest flight time	7h 36m
Direct flights	None

The best one-way flight to Kailua-Kona from Ontario in the past 72 hours is $221. The best round-trip flight deal from Ontario to Kailua-Kona found on momondo in the last 72 hours is $436.

The fastest flight from Ontario to Kailua-Kona takes 7h 36m

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 36m.
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 October 2026, there are 4 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 36% of all bookings. The subsequent popular airlines are Southwest at 31%, Alaska Airlines at 21%, and Delta at 11%.

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
Delta	PriceFrom $296	Free Cancellation	Rating 7.8 8,650 reviews	Search Delta flights
Alaska Airlines	PriceFrom $317	Free Cancellation	Rating 7.9 13,067 reviews	Search Alaska Airlines flights
United Airlines	PriceFrom $335	Free Cancellation	Rating 7.4 10,362 reviews	Search United Airlines flights
Southwest	PriceFrom $379	Free Cancellation	Rating 7.9 4,214 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.