How long is the flight from Ontario to The Big Island?

Delta can get you from Ontario to The Big Island in just under 13h 17m. Your travel time can differ by up to . The distance between Ontario and The Big Island is about 2547 mi.

What are the cheapest airlines to fly from Ontario to The Big Island one-way?

To fly one-way, consider booking your trip with United Airlines, which is currently one of the cheapest options available, starting at $123. Southwest flights start at $155 while deals on Alaska Airlines start at $174 one-way.

In terms of precipitation, rainfall in The Big Island ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. February is typically the driest time to visit The Big Island when rainfall is around 1.6 in.

If weather is an important factor for your trip to The Big Island, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 71.6 F).

What are the most popular routes from Ontario to The Big Island?

When deciding which route to take from Ontario to The Big Island consider Ontario - Kona Intl, Ontario - Hilo Intl or Ontario - Waimea (Big Island) Waimea Kohala as they are the most popular.

What are the most popular airlines that fly from Ontario to The Big Island?

When booking a flight from Ontario to The Big Island, you may want to consider flying on Alaska Airlines, Southwest or Delta as they are the most popular for this route.

What airport do you fly from for flights from Ontario to The Big Island?

Most people fly from Ontario (ONT) if they book a flight from Ontario to The Big Island. Ontario is conveniently located just 3.1 mi from Ontario’s city center.

Can I find deals for flights from Ontario to The Big Island that include hotel bookings?

Yes. In addition to deals on Ontario to The Big Island flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Ontario to The Big Island?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to The Big Island.

Can I find deals for business class flights from Ontario to The Big Island?

Yes. Cheapflights offers flight deals from Ontario to The Big Island by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$161+ Flights from Ontario to The Big Island

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1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

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Cheap flight deals from Ontario to The Big Island

Cheapest flights from Ontario to The Big Island
Explore the most affordable flight options available from Ontario to The Big Island. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 23, 2025.

Wed 12/2412:48 pmONT - KOA

1 stop27h 57mMultiple Airlines

Wed 1/216:38 pmKOA - ONT

1 stop25h 50mMultiple Airlines

Deal found 12/20

$522

Wed 12/246:38 amONT - KOA

1 stop15h 04mDelta

Wed 1/219:30 pmKOA - ONT

2 stops14h 26mDelta

Deal found 12/20

$609

Tue 12/236:38 amONT - KOA

1 stop15h 04mDelta

Mon 12/298:55 pmKOA - ONT

1 stop13h 34mDelta

Deal found 12/21

$622

Tue 12/236:38 amONT - KOA

1 stop15h 04mDelta

Tue 12/309:55 pmKOA - ONT

1 stop12h 37mDelta

Deal found 12/21

$645

Wed 12/246:38 amONT - KOA

1 stop15h 04mDelta

Mon 12/298:55 pmKOA - ONT

1 stop13h 34mDelta

Deal found 12/21

$657

Wed 12/246:00 amONT - KOA

1 stop8h 51mUnited Airlines

Mon 12/2911:59 pmKOA - ONT

1 stop8h 02mUnited Airlines

Deal found 12/22

$674

Thu 12/257:00 amONT - KOA

1 stop9h 45mMultiple Airlines

Sun 12/2812:22 pmKOA - ONT

1 stop7h 46mMultiple Airlines

Deal found 12/21

$678

Wed 12/246:38 amONT - KOA

1 stop15h 04mDelta

Tue 12/309:55 pmKOA - ONT

1 stop12h 37mDelta

Deal found 12/21

$680

Wed 12/317:00 amONT - KOA

1 stop9h 45mAlaska Airlines

Sat 1/109:00 amKOA - ONT

1 stop9h 36mAlaska Airlines

Deal found 12/21

$682

Sun 12/286:00 amONT - KOA

1 stop8h 51mUnited Airlines

Sun 12/2811:59 pmKOA - ONT

1 stop8h 02mUnited Airlines

Deal found 12/21

$698

Wed 12/246:00 amONT - KOA

1 stop8h 51mUnited Airlines

Sat 12/2711:59 pmKOA - ONT

1 stop8h 02mUnited Airlines

Deal found 12/22

$700

Thu 12/258:55 amONT - ITO

2 stops11h 15mSouthwest

Mon 12/296:00 amITO - ONT

2 stops10h 40mSouthwest

Deal found 12/21

$819

Best flights from Ontario to The Big Island
Discover carefully curated flight deals from Ontario to The Big Island that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 23, 2025.

Mon 1/267:30 amONT - KOA

1 stop13h 17mDelta

Fri 2/68:55 pmKOA - ONT

1 stop13h 21mDelta

Deal found 12/22

$304

Tue 3/312:02 pmONT - KOA

1 stop12h 55mAlaska Airlines

Wed 3/48:45 amKOA - ONT

1 stop11h 59mAlaska Airlines

Deal found 12/22

$326

Mon 1/266:00 amONT - ITO

2 stops13h 45mMultiple Airlines

Tue 1/2712:09 pmITO - ONT

1 stop8h 19mMultiple Airlines

Deal found 12/20

$332

Mon 1/267:30 amONT - KOA

1 stop13h 17mDelta

Thu 2/58:55 pmKOA - ONT

1 stop13h 21mDelta

Deal found 12/22

$304

Mon 3/27:30 amONT - KOA

1 stop14h 09mDelta

Thu 3/58:55 pmKOA - ONT

1 stop13h 12mDelta

Deal found 12/21

$304

Thu 1/228:13 amONT - KOA

1 stop9h 47mMultiple Airlines

Tue 1/2711:59 amKOA - ONT

1 stop8h 29mMultiple Airlines

Deal found 12/22

$335

Sun 1/255:10 pmONT - KOA

2 stops27h 37mDelta

Tue 2/39:55 pmKOA - ONT

1 stop14h 01mDelta

Deal found 12/22

$308

Sun 1/255:10 pmONT - KOA

2 stops27h 37mDelta

Wed 2/49:55 pmKOA - ONT

1 stop14h 01mDelta

Deal found 12/22

$308

Tue 1/275:10 pmONT - KOA

2 stops27h 37mDelta

Tue 2/39:55 pmKOA - ONT

1 stop14h 01mDelta

Deal found 12/22

$308

Tue 1/208:13 amONT - ITO

1 stop10h 00mMultiple Airlines

Tue 1/2712:09 pmITO - ONT

1 stop8h 19mMultiple Airlines

Deal found 12/22

$410

Mon 3/27:30 amONT - KOA

1 stop14h 09mDelta

Wed 3/117:40 pmKOA - ONT

1 stop13h 43mDelta

Deal found 12/21

$317

Fri 1/234:03 pmONT - ITO

2 stops24h 29mMultiple Airlines

Sun 1/257:44 pmITO - ONT

2 stops26h 12mMultiple Airlines

Deal found 12/21

$446

Wed 3/186:00 amONT - KOA

2 stops15h 38mDelta

Tue 3/248:55 pmKOA - ONT

1 stop11h 23mDelta

Deal found 12/21

$322

Wed 2/48:13 amONT - ITO

1 stop8h 19mMultiple Airlines

Sun 2/87:35 amITO - ONT

2 stops14h 21mMultiple Airlines

Deal found 12/22

$453

Sun 3/17:30 amONT - KOA

1 stop14h 09mDelta

Thu 3/58:55 pmKOA - ONT

1 stop13h 12mDelta

Deal found 12/21

$331

Sat 1/108:13 amONT - ITO

1 stop10h 00mMultiple Airlines

Tue 1/208:30 pmITO - ONT

1 stop23h 58mMultiple Airlines

Deal found 12/20

$482

Tue 3/35:00 pmONT - KOA

2 stops28h 39mDelta

Wed 3/117:40 pmKOA - ONT

1 stop13h 43mDelta

Deal found 12/21

$337

Fri 1/98:13 amONT - ITO

1 stop8h 19mMultiple Airlines

Tue 1/136:00 amITO - ONT

2 stops12h 36mMultiple Airlines

Deal found 12/22

$491

Thu 1/88:13 amONT - ITO

1 stop10h 00mMultiple Airlines

Tue 1/136:00 amITO - ONT

2 stops12h 36mMultiple Airlines

Deal found 12/22

$491

Tue 1/66:00 amONT - MUE

2 stops15h 13mMultiple Airlines

Sun 1/119:10 pmMUE - ONT

2 stops11h 49mMultiple Airlines

Deal found 12/21

$707

Last-minute flights from Ontario to The Big Island
Discover last-minute flight deals from Ontario to The Big Island. Data last updated December 23, 2025 and is based on user searches.

Tue 1/206:27 amONT - KOA

1 stop11h 20mAmerican Airlines

Mon 1/269:20 pmKOA - ONT

1 stop9h 48mAmerican Airlines

Deal found 12/22

$344

Wed 1/2111:53 amONT - KOA

1 stop11h 37mMultiple Airlines

Wed 1/2811:59 amKOA - ONT

1 stop8h 29mMultiple Airlines

Deal found 12/22

$327

Wed 1/2111:53 amONT - KOA

1 stop11h 37mMultiple Airlines

Mon 1/2612:51 pmKOA - ONT

1 stop7h 37mMultiple Airlines

Deal found 12/22

$340

Thu 1/228:13 amONT - KOA

1 stop9h 47mMultiple Airlines

Tue 1/2711:59 amKOA - ONT

1 stop8h 29mMultiple Airlines

Deal found 12/22

$335

Fri 1/236:00 amONT - KOA

1 stop11h 51mDelta

Wed 2/49:55 pmKOA - ONT

1 stop14h 01mDelta

Deal found 12/22

$346

Sun 1/255:10 pmONT - KOA

2 stops27h 37mDelta

Tue 2/39:55 pmKOA - ONT

1 stop14h 01mDelta

Deal found 12/22

$308

Sun 1/257:30 amONT - KOA

1 stop13h 17mDelta

Fri 2/68:55 pmKOA - ONT

1 stop13h 21mDelta

Deal found 12/22

$357

Mon 1/267:30 amONT - KOA

1 stop13h 17mDelta

Tue 2/39:55 pmKOA - ONT

1 stop14h 01mDelta

Deal found 12/22

$277

Mon 1/267:30 amONT - KOA

1 stop13h 17mDelta

Fri 2/68:55 pmKOA - ONT

1 stop13h 21mDelta

Deal found 12/22

$304

Mon 1/268:13 amONT - ITO

1 stop8h 19mMultiple Airlines

Tue 1/2712:09 pmITO - ONT

1 stop8h 19mMultiple Airlines

Deal found 12/21

$322

Wed 1/287:30 amONT - KOA

1 stop13h 17mDelta

Thu 2/58:55 pmKOA - ONT

1 stop13h 21mDelta

Deal found 12/22

$331

Thu 1/296:00 amONT - KOA

2 stops14h 47mDelta

Fri 2/68:55 pmKOA - ONT

1 stop13h 21mDelta

Deal found 12/22

$349

One-way flights from Ontario to The Big Island
Search for one-way flight options from Ontario to The Big Island. Find affordable one-way fares based on user searches. Data last updated December 23, 2025.

Sun 1/258:13 amONT - KOA

1 stop9h 47mMultiple Airlines

Deal found 12/21

$161

Tue 2/311:53 amONT - KOA

1 stop11h 37mAlaska Airlines

Deal found 12/21

$166

Mon 2/27:00 amONT - ITO

2 stops12h 29mMultiple Airlines

Deal found 12/23

$171

Thu 1/228:13 amONT - KOA

1 stop8h 48mMultiple Airlines

Deal found 12/20

$174

Mon 3/96:14 amONT - KOA

1 stop10h 19mAlaska Airlines

Deal found 12/20

$179

Fri 2/68:13 amONT - KOA

1 stop9h 47mMultiple Airlines

Deal found 12/21

$197

Fri 1/238:13 amONT - KOA

1 stop8h 48mMultiple Airlines

Deal found 12/22

$202

Thu 1/298:13 amONT - KOA

1 stop8h 48mMultiple Airlines

Deal found 12/21

$203

Wed 3/48:41 amONT - ITO

1 stop10h 48mMultiple Airlines

Deal found 12/21

$204

Tue 2/178:41 amONT - KOA

1 stop8h 28mMultiple Airlines

Deal found 12/21

$204

Sat 2/2812:02 pmONT - KOA

1 stop12h 55mAlaska Airlines

Deal found 12/22

$207

Sun 2/86:00 amONT - KOA

1 stop10h 44mAlaska Airlines

Deal found 12/20

$208

Find flight deals from Ontario to The Big Island

Most accurate provider	CheapOair 3 stars
Most trusted provider	CheapOair 3 stars
Round-trip from	$277 (Delta)
One-way from	$161 (Alaska Airlines)
Popular in	June
Cheapest in	January
Average price	$537

Provider with most accurate pricing for Los Angeles-Kona Intl flight deals.

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Provider most trusted by Cheapflights users for Los Angeles-Kona Intl flights.

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From Ontario to The Big Island

Search Deals

One-way flight from Ontario to The Big Island

Search Deals

Highest demand for flights based on searches. 12% potential increase in price ($62 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

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Cheapflights Fare Finder

Use the filters below to find and compare flights from Ontario to The Big Island that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

OntarioKailua-Kona

ONT - KOA

ONTKOA

Ontario

Mon 1/26

7:30 am-6:47 pm

1 stop13h 17m

Kona Intl

Fri 2/6

8:55 pm-12:16 pm

1 stop13h 21m

$304

OntarioKailua-Kona

ONT - KOA

ONTKOA

Ontario

Mon 1/26

7:30 am-6:47 pm

1 stop13h 17m

Kona Intl

Thu 2/5

8:55 pm-12:16 pm

1 stop13h 21m

$304

OntarioKailua-Kona

ONT - KOA

ONTKOA

Ontario

Mon 3/2

7:30 am-7:39 pm

1 stop14h 09m

Kona Intl

Thu 3/5

8:55 pm-12:07 pm

1 stop13h 12m

$304

OntarioKailua-Kona

ONT - KOA

ONTKOA

Ontario

Sun 1/25

5:10 pm-6:47 pm

2 stops27h 37m

Kona Intl

Tue 2/3

9:55 pm-1:56 pm

1 stop14h 01m

$308

OntarioKailua-Kona

ONT - KOA

ONTKOA

Ontario

Sun 1/25

5:10 pm-6:47 pm

2 stops27h 37m

Kona Intl

Wed 2/4

9:55 pm-1:56 pm

1 stop14h 01m

$308

OntarioKailua-Kona

ONT - KOA

ONTKOA

Ontario

Tue 1/27

5:10 pm-6:47 pm

2 stops27h 37m

Kona Intl

Tue 2/3

9:55 pm-1:56 pm

1 stop14h 01m

$308

OntarioKailua-Kona

ONT - KOA

ONTKOA

Ontario

Mon 3/2

7:30 am-7:39 pm

1 stop14h 09m

Kona Intl

Wed 3/11

7:40 pm-12:23 pm

1 stop13h 43m

$317

OntarioKailua-Kona

ONT - KOA

ONTKOA

Ontario

Wed 3/18

6:00 am-6:38 pm

2 stops15h 38m

Kona Intl

Tue 3/24

8:55 pm-11:18 am

1 stop11h 23m

$322

OntarioKailua-Kona

ONT - KOA

ONTKOA

Ontario

Tue 3/3

12:02 pm-10:57 pm

1 stop12h 55m

Kona Intl

Wed 3/4

8:45 am-10:44 pm

1 stop11h 59m

$326

OntarioKailua-Kona

ONT - KOA

ONTKOA

Ontario

Sun 3/1

7:30 am-7:39 pm

1 stop14h 09m

Kona Intl

Thu 3/5

8:55 pm-12:07 pm

1 stop13h 12m

$331

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/22

Showing 1-10 of 36 results

Best time to book a flight from Ontario to The Big Island

Have a flexible travel schedule? Discover the best time to fly to The Big Island from Ontario with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Ontario to The Big Island

What is the cheapest month to book a flight from Ontario to The Big Island?

Currently, May is the cheapest month in which you can book a flight from Ontario to The Big Island (average of $149). Flying from Ontario to The Big Island in June is currently the most expensive (average of $251). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ONT to FUI?

Unlike in the morning, when flights are generally more expensive, you can save up to 78% on flights from Ontario to The Big Island by exploring options for tickets in the afternoon.

Reviews of airlines servicing The Big Island

Get a feel of what it's like to fly with Alaska Airlines, Southwest, and Delta from Ontario to The Big Island by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

11,513 reviews

Reviews

1 / 20

2.0

Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.

Alaska Airlines

8.0

Very good

11,513 reviews

Alaska Airlines

8.0

Very good

11,513 reviews

Reviews

1 / 20

2.0

Mediocre

Art,Dec 2025

SAN - OGG

Southwest

8.0

Very good

4,255 reviews

Alaska Airlines

8.0

Very good

11,513 reviews

Reviews

1 / 20

2.0

Mediocre

Art,Dec 2025

SAN - OGG

Delta

7.9

Good

8,015 reviews

Alaska Airlines

8.0

Very good

11,513 reviews

Reviews

1 / 20

2.0

Mediocre

Art,Dec 2025

SAN - OGG

Hawaiian Airlines

7.8

Good

2,820 reviews

Alaska Airlines

8.0

Very good

11,513 reviews

Reviews

1 / 20

2.0

Mediocre

Art,Dec 2025

SAN - OGG

United Airlines

7.4

Good

9,106 reviews

Alaska Airlines

8.0

Very good

11,513 reviews

Reviews

1 / 20

2.0

Mediocre

Art,Dec 2025

SAN - OGG

Related info for your journey

What airport do you fly from for flights from Ontario to The Big Island?
Most people fly from Ontario (ONT) if they book a flight from Ontario to The Big Island. Ontario is conveniently located just 3.1 mi from Ontario’s city center.
How long is the flight from Ontario to The Big Island?
Delta can get you from Ontario to The Big Island in just under 13h 17m. Your travel time can differ by up to . The distance between Ontario and The Big Island is about 2547 mi.
What are the cheapest airlines to fly from Ontario to The Big Island one-way?
To fly one-way, consider booking your trip with United Airlines, which is currently one of the cheapest options available, starting at $123. Southwest flights start at $155 while deals on Alaska Airlines start at $174 one-way.
What are the most popular routes from Ontario to The Big Island?
When deciding which route to take from Ontario to The Big Island consider Ontario - Kona Intl, Ontario - Hilo Intl or Ontario - Waimea (Big Island) Waimea Kohala as they are the most popular.
Can I find deals for flights from Ontario to The Big Island that include hotel bookings?
Yes. In addition to deals on Ontario to The Big Island flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Ontario to The Big Island?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to The Big Island.
Can I find deals for business class flights from Ontario to The Big Island?
Yes. Cheapflights offers flight deals from Ontario to The Big Island by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Ontario to The Big Island?
Currently, May is the cheapest month in which you can book a flight from Ontario to The Big Island (average of $149). Flying from Ontario to The Big Island in June is currently the most expensive (average of $251). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top 6 airlines flying from Ontario to The Big Island

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$220	Average$387	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$277	Average$467	FlexibilityNo cancel fee	On-time69%
Southwest	Cheapest$277	Average$535	FlexibilityNo cancel fee	On-time63%
Hawaiian Airlines	Cheapest$283	Average$390	FlexibilityNo cancel fee	On-time85%
American Airlines	Cheapest$308	Average$504	FlexibilityNo cancel fee	On-time71%
Alaska Airlines	Cheapest$332	Average$555	FlexibilityNo cancel fee	On-time75%

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$161+ Cheap flights from Ontario (ONT) to The Big Island

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/25. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheap flight deals from Ontario to The Big Island

Cheapest flights from Ontario to The Big IslandExplore the most affordable flight options available from Ontario to The Big Island. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 23, 2025.

Explore the most affordable flight options available from Ontario to The Big Island. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 23, 2025.

Find flight deals from Ontario to The Big Island

Keep the following information in mind while searching for Ontario to The Big Island flight deals. Data was last updated December 23, 2025.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Ontario to The Big Island that are best for you.

Best time to book a flight from Ontario to The Big Island

Have a flexible travel schedule? Discover the best time to fly to The Big Island from Ontario with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Ontario to The Big Island

What is the cheapest month to book a flight from Ontario to The Big Island?

What is the cheapest time of day to fly from ONT to FUI?

Find hourly flight availability from Ontario to The Big Island. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 23, 2025.

Reviews of airlines servicing The Big Island

Get a feel of what it's like to fly with Alaska Airlines, Southwest, and Delta from Ontario to The Big Island by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Ontario to The Big Island. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly from for flights from Ontario to The Big Island?

How long is the flight from Ontario to The Big Island?

What are the cheapest airlines to fly from Ontario to The Big Island one-way?

What are the most popular routes from Ontario to The Big Island?

Can I find deals for flights from Ontario to The Big Island that include hotel bookings?

How can I find direct flights from Ontario to The Big Island?

Can I find deals for business class flights from Ontario to The Big Island?

What is the cheapest month to book a flight from Ontario to The Big Island?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ontario to The Big Island

See prices for flight routes from nearby airports that may be better suited for you.

Top 6 airlines flying from Ontario to The Big Island

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Cheapest flights from Ontario to The Big Island
Explore the most affordable flight options available from Ontario to The Big Island. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 23, 2025.