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

Alaska Airlines, 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?

Seattle (SEA) was the most common stop: 40% of momondo users choosing 1-stop flights on this route connected there.

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

Flights connecting via Oakland (OAK) have the shortest average one-way travel time: 8h 25m.

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

Flights via Oakland (OAK) offer the lowest average round-trip price of $347.

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

San Francisco (SFO) has the shortest average layover time for this route: 1h 15m.

What airlines fly to Kailua-Kona?

Hawaiian Airlines, United Airlines and American Airlines are the top three most popular airlines that fly to Kailua-Kona from Ontario according to our data. Hawaiian Airlines is the first choice among our users, with 33% of people opting to fly with this airline when traveling to Kailua-Kona. Keep in mind that there are 6 different airlines that fly to Kailua-Kona on a routine basis, so you have a few additional options to choose from.

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 September 2025, there are 6 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.

$121 Cheap Flights from Ontario to Kailua-Kona in 2025/26

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 $414 to $507. The lowest price recently found on this route was $365.

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Find the cheapest flights from Ontario to Kailua-Kona

Round-trip

One-way

Last minute

Cheap round-trip flights

9:50 am - 4:26 pmONT-KOA

8h 36m1 stop

6:00 am - 9:55 pmKOA-ONT

13h 55m1 stop

$365Alaska Airlines

Find Deal

Ma, ian 20 - Mi, ian 28

9:45 am - 5:32 pmONT-KOA

10h 47m1 stop

7:14 am - 5:14 pmKOA-ONT

8h 00m1 stop

$366Alaska Airlines

Find Deal

Mi, oct 29 - Mi, nov 5

9:50 am - 5:21 pmONT-KOA

9h 31m1 stop

6:00 pm - 9:55 pmKOA-ONT

25h 55m1 stop

$367Alaska Airlines

Find Deal

Du, ian 11 - Jo, ian 15

9:50 am - 5:27 pmONT-KOA

9h 37m1 stop

10:00 pm - 10:39 amKOA-ONT

10h 39m1 stop

$370Hawaiian Airlines

Find Deal

Mi, feb 25 - Jo, feb 26

6:00 am - 5:44 pmONT-KOA

13h 44m1 stop

4:45 pm - 9:55 pmKOA-ONT

27h 10m1 stop

$371Alaska Airlines

Find Deal

Lu, nov 17 - Lu, ian 12

7:35 am - 5:30 pmONT-KOA

12h 55m1 stop

9:30 pm - 2:01 pmKOA-ONT

13h 31m1 stop

$374Delta

Find Deal

Lu, oct 27 - Vi, oct 31

9:45 am - 5:32 pmONT-KOA

10h 47m1 stop

6:00 am - 5:14 pmKOA-ONT

9h 14m1 stop

$377Alaska Airlines

Find Deal

Ma, oct 28 - Lu, nov 3

7:35 am - 5:30 pmONT-KOA

12h 55m1 stop

9:30 pm - 12:14 pmKOA-ONT

11h 44m2 stops

$379Delta

Find Deal

Lu, oct 27 - Vi, oct 31

6:10 am - 1:40 pmONT-KOA

9h 30m1 stop

9:25 pm - 9:20 amKOA-ONT

9h 55m2 stops

$390Southwest

Find Deal

Lu, nov 17 - Lu, ian 12

6:40 am - 12:45 pmONT-KOA

8h 05m1 stop

10:00 am - 10:15 pmKOA-ONT

10h 15m1 stop

$395Southwest

Find Deal

Ma, nov 11 - Vi, nov 14

Delta flights from Ontario to Kailua-Kona

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

Delta

Oct 27

ONT7:35 amOntario

12h 55m

1 stop

KOA5:30 pmKona Intl

Oct 31

KOA9:30 pmKona Intl

13h 31m

1 stop

ONT2:01 pmOntario

$374

Find similar

Delta

Oct 27

ONT7:35 amOntario

12h 55m

1 stop

KOA5:30 pmKona Intl

Oct 31

KOA9:30 pmKona Intl

11h 44m

2 stops

ONT12:14 pmOntario

$379

Find similar

Delta

Nov 11

ONT6:00 amOntario

14h 13m

2 stops

KOA6:13 pmKona Intl

Nov 14

KOA8:30 pmKona Intl

13h 48m

2 stops

ONT12:18 pmOntario

$385

Find similar

Alaska Airlines flights from Ontario to Kailua-Kona

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

Alaska Airlines

Jan 20

ONT9:50 amOntario

8h 36m

1 stop

KOA4:26 pmKona Intl

Jan 28

KOA6:00 amKona Intl

13h 55m

1 stop

ONT9:55 pmOntario

$365

Find similar

Alaska Airlines

Oct 29

ONT9:45 amOntario

10h 47m

1 stop

KOA5:32 pmKona Intl

Nov 5

KOA7:14 amKona Intl

8h 00m

1 stop

ONT5:14 pmOntario

$366

Find similar

Alaska Airlines

Jan 11

ONT9:50 amOntario

9h 31m

1 stop

KOA5:21 pmKona Intl

Jan 15

KOA6:00 pmKona Intl

25h 55m

1 stop

ONT9:55 pmOntario

$367

Find similar

Fly from

Fly to

Route

Depart

Return

Price

OntarioKailua-Kona

ONT - KOA

ONTKOA

Ontario

Ma 1/20

9:50 am-4:26 pm

1 stop8h 36m

Kona Intl

Mi 1/28

6:00 am-9:55 pm

1 stop13h 55m

$365

OntarioKailua-Kona

ONT - KOA

ONTKOA

Ontario

Mi 10/29

9:45 am-5:32 pm

1 stop10h 47m

Kona Intl

Mi 11/5

7:14 am-5:14 pm

1 stop8h 00m

$366

OntarioKailua-Kona

ONT - KOA

ONTKOA

Ontario

Du 1/11

9:50 am-5:21 pm

1 stop9h 31m

Kona Intl

Jo 1/15

6:00 pm-9:55 pm

1 stop25h 55m

$367

OntarioKailua-Kona

ONT - KOA

ONTKOA

Ontario

Mi 2/25

9:50 am-5:27 pm

1 stop9h 37m

Kona Intl

Jo 2/26

10:00 pm-10:39 am

1 stop10h 39m

$370

OntarioKailua-Kona

ONT - KOA

ONTKOA

Ontario

Lu 11/17

6:00 am-5:44 pm

1 stop13h 44m

Kona Intl

Lu 1/12

4:45 pm-9:55 pm

1 stop27h 10m

$371

OntarioKailua-Kona

ONT - KOA

ONTKOA

Ontario

Lu 10/27

7:35 am-5:30 pm

1 stop12h 55m

Kona Intl

Vi 10/31

9:30 pm-2:01 pm

1 stop13h 31m

$374

OntarioKailua-Kona

ONT - KOA

ONTKOA

Ontario

Ma 10/28

9:45 am-5:32 pm

1 stop10h 47m

Kona Intl

Lu 11/3

6:00 am-5:14 pm

1 stop9h 14m

$377

OntarioKailua-Kona

ONT - KOA

ONTKOA

Ontario

Lu 10/27

7:35 am-5:30 pm

1 stop12h 55m

Kona Intl

Vi 10/31

9:30 pm-12:14 pm

2 stops11h 44m

$379

OntarioKailua-Kona

ONT - KOA

ONTKOA

Ontario

Lu 11/17

6:10 am-1:40 pm

1 stop9h 30m

Kona Intl

Lu 1/12

9:25 pm-9:20 am

2 stops9h 55m

$390

OntarioKailua-Kona

ONT - KOA

ONTKOA

Ontario

Ma 11/11

6:40 am-12:45 pm

1 stop8h 05m

Kona Intl

Vi 11/14

10:00 am-10:15 pm

1 stop10h 15m

$395

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 April. Flight prices, which tend to average around $368, are often lower during this time because this is during the off-season. The month of February is another great option to travel to Kailua-Kona, with average flight prices from Ontario averaging around $370.

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 Wednesday when prices can be found for as low as $385. 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 $504.

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

Flying to Kailua-Kona from Ontario at noon is the least expensive time of day to depart. momondo users have found prices as low as $306 when looking at flights departing at noon. In contrast, the most expensive time of day to depart to Kailua-Kona is in the morning when prices are around $426.

How far in advance should I book a flight to Kailua-Kona?

You are more likely to see cheaper flights to Kailua-Kona from Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to Kailua-Kona for around $460 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Kailua-Kona from Ontario for as low as $318 on momondo.

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

Direct flights	None

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

Search flight deals

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 8h 00m.
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 September 2025, there are 6 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 Southwest, representing 32% of all bookings. The subsequent popular airlines are Alaska Airlines at 29%, Delta at 13%, and United Airlines at 12%.

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
Hawaiian Airlines	PriceFrom $232	Free Cancellation	Rating 7.8 2,723 reviews	Search Hawaiian Airlines flights
Delta	PriceFrom $233	Free Cancellation	Rating 7.9 7,954 reviews	Search Delta flights
United Airlines	PriceFrom $265	Free Cancellation	Rating 7.4 8,929 reviews	Search United Airlines flights
Southwest	PriceFrom $277	Free Cancellation	Rating 8.0 4,242 reviews	Search Southwest flights
American Airlines	PriceFrom $340	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Alaska Airlines	PriceFrom $348	Free Cancellation	Rating 8.0 10,000 reviews	Search Alaska Airlines 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.

An easier way to manage your Kailua-Kona trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Cheap flights from Ontario to Kailua-Kona from $171

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Kailua-Kona departing on 1/31. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Find the cheapest flights from Ontario to Kailua-Kona

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Delta flights from Ontario to Kailua-Kona

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

Alaska Airlines flights from Ontario to Kailua-Kona

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

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Use the filters below to find and compare flights from Ontario to Kailua-Kona that are best for you.

See travel insights to Kailua-Kona from

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

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?

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

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

Flying to Kailua-Kona from Ontario at noon is the least expensive time of day to depart. momondo users have found prices as low as $306 when looking at flights departing at noon. In contrast, the most expensive time of day to depart to Kailua-Kona is in the morning when prices are around $426.

How far in advance should I book a flight to Kailua-Kona?

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

Alaska Airlines, Delta, and United Airlines are the most popular carriers operating from Ontario to Kona Intl

What airlines fly to Kailua-Kona?

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

Seattle (SEA) was the most common stop: 40% 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 Oakland (OAK) offer the lowest average round-trip price of $347.

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

Flights connecting via Oakland (OAK) have the shortest average one-way travel time: 8h 25m.

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

San Francisco (SFO) has the shortest average layover time for this route: 1h 15m.

When to book flights from Ontario to Kailua-Kona

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

Direct flights

How far is Ontario to Kona Intl by plane?

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

How many operators does momondo search 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?

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

What is the most popular airline from Ontario to Kailua-Kona?

Best airlines flying from Ontario to Kailua-Kona

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

Why use momondo?

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

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

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

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

An easier way to manage your Kailua-Kona trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing Hawaii