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 39% 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 United Airlines are the most popular carriers operating from Ontario to Kona Intl

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 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.

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 August 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.

$172 Cheap Flights from Ontario to Kailua-Kona in 2026

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.

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

$335Southwest

Tue, Nov 10 - Thu, Nov 19

6:00 am - 5:31 pmONT Ontario-KOA Kona Intl

14h 31m1 stop Seattle/Tacoma Intl

8:55 pm - 11:14 amKOA Kona Intl-ONT Ontario

11h 19m1 stop Seattle/Tacoma Intl

$344Delta

Wed, Sep 16 - Wed, Sep 23

7:00 am - 7:25 pmONT Ontario-KOA Kona Intl

14h 25m1 stop Seattle/Tacoma Intl

10:40 pm - 11:17 amKOA Kona Intl-ONT Ontario

10h 37m1 stop Seattle/Tacoma Intl

$344Delta

Wed, Nov 11 - Tue, Nov 17

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

11h 10m1 stop Honolulu

6:00 am - 5:50 pmKOA Kona Intl-ONT Ontario

9h 50m2 stops Honolulu San Jose

$345Southwest

Tue, Nov 10 - Thu, Nov 19

8:39 am - 3:43 pmONT Ontario-KOA Kona Intl

9h 04m1 stop Honolulu

8:45 pm - 9:28 pmKOA Kona Intl-ONT Ontario

22h 43m1 stop Honolulu

$393Multiple Airlines

Sun, Jan 31 - Tue, Mar 2

6:07 am - 10:43 amONT Ontario-KOA Kona Intl

7h 36m1 stop San Francisco

12:04 pm - 10:48 pmKOA Kona Intl-ONT Ontario

7h 44m1 stop San Francisco

$394United Airlines

Sun, Oct 18 - Mon, Oct 26

8:39 am - 9:49 pmONT Ontario-KOA Kona Intl

15h 10m1 stop Honolulu

8:45 pm - 9:28 pmKOA Kona Intl-ONT Ontario

22h 43m1 stop Honolulu

$398Multiple Airlines

Sun, Jan 31 - Tue, Mar 2

12:12 pm - 7:27 pmONT Ontario-KOA Kona Intl

10h 15m1 stop Seattle/Tacoma Intl

10:25 pm - 11:16 amKOA Kona Intl-ONT Ontario

9h 51m1 stop Seattle/Tacoma Intl

$440Alaska Airlines

Tue, Sep 15 - Mon, Sep 21

12:12 pm - 7:27 pmONT Ontario-KOA Kona Intl

10h 15m1 stop Seattle/Tacoma Intl

10:25 pm - 11:16 amKOA Kona Intl-ONT Ontario

9h 51m1 stop Seattle/Tacoma Intl

$440Alaska Airlines

Wed, Sep 23 - Mon, Sep 28

6:00 am - 12:02 pmONT Ontario-KOA Kona Intl

8h 02m1 stop San Francisco

1:20 pm - 11:06 pmKOA Kona Intl-ONT Ontario

7h 46m1 stop San Francisco

$448United Airlines

Thu, Jan 7 - Sun, Jan 17

Cheap last minute flights

Enter your travel dates to find the best prices.

6:20 am - 5:35 pmONT Ontario-KOA Kona Intl

14h 15m1 stop Seattle/Tacoma Intl

8:42 pm - 11:16 amKOA Kona Intl-ONT Ontario

11h 34m1 stop Seattle/Tacoma Intl

$629Delta

Fri, Aug 28 - Thu, Sep 3

6:20 am - 5:35 pmONT Ontario-KOA Kona Intl

14h 15m1 stop Seattle/Tacoma Intl

8:42 pm - 11:16 amKOA Kona Intl-ONT Ontario

11h 34m1 stop Seattle/Tacoma Intl

$629Delta

Sat, Aug 29 - Thu, Sep 3

6:02 am - 1:24 pmONT Ontario-KOA Kona Intl

10h 22m1 stop Seattle/Tacoma Intl

10:25 pm - 11:16 amKOA Kona Intl-ONT Ontario

9h 51m1 stop Seattle/Tacoma Intl

$629Alaska Airlines

Fri, Aug 28 - Tue, Sep 8

7:59 pm - 1:24 pmONT Ontario-KOA Kona Intl

20h 25m1 stop Seattle/Tacoma Intl

10:25 pm - 11:16 amKOA Kona Intl-ONT Ontario

9h 51m1 stop Seattle/Tacoma Intl

$629Alaska Airlines

Fri, Aug 28 - Tue, Sep 8

6:20 am - 5:35 pmONT Ontario-KOA Kona Intl

14h 15m1 stop Seattle/Tacoma Intl

8:42 pm - 2:08 pmKOA Kona Intl-ONT Ontario

14h 26m1 stop Seattle/Tacoma Intl

$629Delta

Sat, Aug 29 - Fri, Sep 4

8:00 am - 2:10 pmONT Ontario-KOA Kona Intl

9h 10m1 stop Honolulu

6:05 am - 8:10 pmKOA Kona Intl-ONT Ontario

11h 05m1 stop Honolulu

$665Southwest

Thu, Aug 27 - Sat, Aug 29

8:00 am - 6:05 pmONT Ontario-KOA Kona Intl

13h 05m1 stop Honolulu

8:00 am - 8:15 pmKOA Kona Intl-ONT Ontario

9h 15m1 stop Honolulu

$665Southwest

Sat, Aug 29 - Thu, Sep 3

12:00 pm - 7:25 pmONT Ontario-KOA Kona Intl

10h 25m1 stop Seattle/Tacoma Intl

10:25 pm - 11:04 amKOA Kona Intl-ONT Ontario

9h 39m1 stop Seattle/Tacoma Intl

$674Alaska Airlines

Wed, Aug 26 - Fri, Aug 28

6:08 am - 10:49 amONT Ontario-KOA Kona Intl

7h 41m1 stop San Francisco

12:04 pm - 10:59 pmKOA Kona Intl-ONT Ontario

7h 55m1 stop San Francisco

$784United Airlines

Thu, Aug 27 - Thu, Sep 3

6:08 am - 12:48 pmONT Ontario-KOA Kona Intl

9h 40m1 stop San Francisco

10:50 pm - 12:12 pmKOA Kona Intl-ONT Ontario

10h 22m1 stop San Francisco

$1,584United Airlines

Thu, Aug 27 - Tue, Sep 1

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Southwest flights from Ontario to Kailua-Kona

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

Southwest

Nov 10

ONT9:00 amOntario

11h 10m

1 stop

KOA6:10 pmKona Intl

Nov 19

KOA11:40 amKona Intl

8h 30m

1 stop

ONT10:10 pmOntario

$335

Southwest

Nov 10

ONT9:00 amOntario

11h 10m

1 stop

KOA6:10 pmKona Intl

Nov 19

KOA6:00 amKona Intl

9h 50m

2 stops

ONT5:50 pmOntario

$345

Southwest

Nov 10

ONT5:55 amOntario

10h 20m

2 stops

KOA2:15 pmKona Intl

Nov 19

KOA6:00 amKona Intl

9h 50m

2 stops

ONT5:50 pmOntario

$367

United Airlines flights from Ontario to Kailua-Kona

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

United Airlines

Oct 18

ONT6:07 amOntario

7h 36m

1 stop

KOA10:43 amKona Intl

Oct 26

KOA12:04 pmKona Intl

7h 44m

1 stop

ONT10:48 pmOntario

$394

United Airlines

Jan 7

ONT6:00 amOntario

8h 02m

1 stop

KOA12:02 pmKona Intl

Jan 17

KOA1:20 pmKona Intl

7h 46m

1 stop

ONT11:06 pmOntario

$448

United Airlines

Nov 3

ONT1:35 pmOntario

8h 57m

1 stop

KOA8:32 pmKona Intl

Nov 4

KOA11:59 pmKona Intl

10h 30m

1 stop

ONT12:29 pmOntario

$454

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioKailua-Kona

ONT Ontario - KOA Kona Intl

ONTKOA

Ontario

Tue 11/10

9:00 am-6:10 pm

1 stop11h 10m

Kona Intl

Thu 11/19

11:40 am-10:10 pm

1 stop8h 30m

$335

OntarioKailua-Kona

ONT Ontario - KOA Kona Intl

ONTKOA

Ontario

Wed 9/16

6:00 am-5:31 pm

1 stop14h 31m

Kona Intl

Wed 9/23

8:55 pm-11:14 am

1 stop11h 19m

$344

OntarioKailua-Kona

ONT Ontario - KOA Kona Intl

ONTKOA

Ontario

Wed 11/11

7:00 am-7:25 pm

1 stop14h 25m

Kona Intl

Tue 11/17

10:40 pm-11:17 am

1 stop10h 37m

$344

OntarioKailua-Kona

ONT Ontario - KOA Kona Intl

ONTKOA

Ontario

Tue 11/10

9:00 am-6:10 pm

1 stop11h 10m

Kona Intl

Thu 11/19

6:00 am-5:50 pm

2 stops9h 50m

$345

OntarioKailua-Kona

ONT Ontario - KOA Kona Intl

ONTKOA

Ontario

Sun 1/31

8:39 am-3:43 pm

1 stop9h 04m

Kona Intl

Tue 3/2

8:45 pm-9:28 pm

1 stop22h 43m

$393

Quickest round-trip

OntarioKailua-Kona

ONT Ontario - KOA Kona Intl

ONTKOA

Ontario

Sun 10/18

6:07 am-10:43 am

1 stop7h 36m

Kona Intl

Mon 10/26

12:04 pm-10:48 pm

1 stop7h 44m

$394

OntarioKailua-Kona

ONT Ontario - KOA Kona Intl

ONTKOA

Ontario

Sun 1/31

8:39 am-9:49 pm

1 stop15h 10m

Kona Intl

Tue 3/2

8:45 pm-9:28 pm

1 stop22h 43m

$398

OntarioKailua-Kona

ONT Ontario - KOA Kona Intl

ONTKOA

Ontario

Tue 9/15

12:12 pm-7:27 pm

1 stop10h 15m

Kona Intl

Mon 9/21

10:25 pm-11:16 am

1 stop9h 51m

$440

OntarioKailua-Kona

ONT Ontario - KOA Kona Intl

ONTKOA

Ontario

Wed 9/23

12:12 pm-7:27 pm

1 stop10h 15m

Kona Intl

Mon 9/28

10:25 pm-11:16 am

1 stop9h 51m

$440

OntarioKailua-Kona

ONT Ontario - KOA Kona Intl

ONTKOA

Ontario

Thu 1/7

6:00 am-12:02 pm

1 stop8h 02m

Kona Intl

Sun 1/17

1:20 pm-11:06 pm

1 stop7h 46m

$448

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?

Prices are currently low for flights on this route.

Typical prices usually range from $422 to $592.
The lowest price recently found on this route was $335.

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 $400.

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 $416. 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 $528.

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 $433 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 $513.

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

You could potentially save up to 27% 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 August 2026, prices for Ontario to Kailua-Kona flights are approximately 121% 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	$172
Fastest flight time	7h 36m
Direct flights	None

The best one-way flight to Kailua-Kona from Ontario in the past 72 hours is $172. The best round-trip flight deal from Ontario to Kailua-Kona found on momondo in the last 72 hours is $335.

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 August 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 35% of all bookings. The subsequent popular airlines are Southwest at 28%, Alaska Airlines at 27%, and Delta at 10%.

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 8,518 reviews	Search Delta flights
Alaska Airlines	PriceFrom $307	Free Cancellation	Rating 7.9 12,841 reviews	Search Alaska Airlines flights
United Airlines	PriceFrom $335	Free Cancellation	Rating 7.4 10,116 reviews	Search United Airlines flights
Southwest	PriceFrom $379	Free Cancellation	Rating 8.0 4,209 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.