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$142+ Cheap flights from The Big Island to Ontario (ONT)

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 4/28. Fares are subject to change and may not be available on all flights or dates of travel.
KOA — ONT
Jan 27 — Feb 31
Mon 1/27
Mon 2/3
1 adult, Economy
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Cheap flight deals from The Big Island to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from The Big Island (zzFUI) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 22, 2025.

Round-trip from

$290
(Delta)

One-way from

$142
(Delta)
From The Big Island to Ontario
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One-way flight from The Big Island to Ontario
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Find flight deals from The Big Island to Ontario

Cheapest flights from The Big Island to Ontario
Explore the most affordable flight options available from The Big Island to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 22, 2025.

This Delta deal was found by Cheapflights users on 1/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/248:30 pmKOA - ONT
1 stop14h 26mDelta
Tue 4/295:40 amONT - KOA
1 stop15h 02mDelta
Deal found 1/22$290
This Alaska Airlines deal was found by Cheapflights users on 1/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/311:02 pmKOA - ONT
1 stop20h 25mAlaska Airlines
Thu 3/66:00 amONT - KOA
1 stop19h 33mAlaska Airlines
Deal found 1/22$377
This United Airlines deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/2910:50 pmKOA - ONT
1 stop8h 09mUnited Airlines
Tue 8/126:00 amONT - KOA
1 stop8h 20mUnited Airlines
Deal found 1/21$454
This Alaska Airlines deal was found by Cheapflights users on 1/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/511:29 amITO - ONT
1 stop8h 21mAlaska Airlines
Wed 3/128:50 amONT - ITO
1 stop8h 47mAlaska Airlines
Deal found 1/22$474
This Southwest deal was found by Cheapflights users on 1/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/186:00 amITO - ONT
2 stops13h 45mSouthwest
Sun 2/239:05 amONT - ITO
2 stops13h 25mSouthwest
Deal found 1/22$564
This Southwest deal was found by Cheapflights users on 1/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/1310:00 amKOA - ONT
2 stops10h 50mSouthwest
Tue 7/226:05 amONT - KOA
1 stop8h 55mSouthwest
Deal found 1/22$698
This American Airlines deal was found by Cheapflights users on 1/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/139:24 pmKOA - ONT
1 stop8h 10mAmerican Airlines
Mon 7/2112:57 amONT - KOA
2 stops14h 55mAmerican Airlines
Deal found 1/22$1,042
This American Airlines deal was found by Cheapflights users on 1/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/1312:25 pmKOA - ONT
2 stops17h 09mMultiple Airlines
Mon 7/2112:57 amONT - KOA
2 stops14h 55mMultiple Airlines
Deal found 1/22$1,190
This United Airlines deal was found by Cheapflights users on 1/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/237:30 amITO - ONT
2 stops33h 01mUnited Airlines
Wed 3/56:00 amONT - ITO
2 stops28h 06mUnited Airlines
Deal found 1/22$2,383
This American Airlines deal was found by Cheapflights users on 1/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/186:10 amITO - ONT
1 stop13h 40mMultiple Airlines
Sun 2/236:13 amONT - ITO
2 stops15h 11mMultiple Airlines
Deal found 1/22$3,118

Find flights from The Big Island to Ontario within your budget

Customize your flight search to find flights from The Big Island to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 22, 2025.

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Fly to

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Route

Depart

Return

Price

Kailua-KonaOntario

KOA - ONT

KOAONT

Kona Intl

Thu 4/24

8:30 pm-1:56 pm

1 stop14h 26m

Ontario

Tue 4/29

5:40 am-5:42 pm

1 stop15h 02m

$290

Kailua-KonaOntario

KOA - ONT

KOAONT

Kona Intl

Mon 3/3

11:02 pm-9:27 pm

1 stop20h 25m

Ontario

Thu 3/6

6:00 am-11:33 pm

1 stop19h 33m

$377

HiloOntario

ITO - ONT

ITOONT

Hilo Intl

Wed 3/5

11:29 am-9:50 pm

1 stop8h 21m

Ontario

Wed 3/12

8:50 am-2:37 pm

1 stop8h 47m

$474

Kailua-KonaOntario

KOA - ONT

KOAONT

Kona Intl

Tue 2/4

2:25 pm-9:51 am

1 stop17h 26m

Ontario

Fri 2/7

6:15 am-12:55 pm

1 stop8h 40m

$531

HiloOntario

ITO - ONT

ITOONT

Hilo Intl

Tue 2/18

6:00 am-9:45 pm

2 stops13h 45m

Ontario

Sun 2/23

9:05 am-8:30 pm

2 stops13h 25m

$564

Kailua-KonaOntario

KOA - ONT

KOAONT

Kona Intl

Sun 7/13

10:00 am-11:50 pm

2 stops10h 50m

Ontario

Tue 7/22

6:05 am-12:00 pm

1 stop8h 55m

$698

Kailua-KonaOntario

KOA - ONT

KOAONT

Kona Intl

Sun 7/13

9:24 pm-8:34 am

1 stop8h 10m

Ontario

Mon 7/21

12:57 am-12:52 pm

2 stops14h 55m

$1,042

Kailua-KonaOntario

KOA - ONT

KOAONT

Kona Intl

Sun 7/13

12:25 pm-8:34 am

2 stops17h 09m

Ontario

Mon 7/21

12:57 am-12:52 pm

2 stops14h 55m

$1,190

HiloOntario

ITO - ONT

ITOONT

Hilo Intl

Sun 2/23

7:30 am-6:31 pm

2 stops33h 01m

Ontario

Wed 3/5

6:00 am-8:06 am

2 stops28h 06m

$2,383

HiloOntario

ITO - ONT

ITOONT

Hilo Intl

Tue 2/18

6:10 am-9:50 pm

1 stop13h 40m

Ontario

Sun 2/23

6:13 am-7:24 pm

2 stops15h 11m

$3,118

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/22

Showing 1-10 of 19 results
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Best time to book a flight from The Big Island to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from The Big Island 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.

Travel insights for flights from The Big Island to Ontario

Get recent, data-driven insights about flights from The Big Island to Ontario including ideal travel times, pricing trends, and more.

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

Currently, August is the cheapest month in which you can book a flight from The Big Island to Ontario (average of $246). Flying from The Big Island to Ontario in March is currently the most expensive (average of $310). 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 FUI to ONT?

Find hourly flight availability from The Big Island to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 22, 2025.

When flying from The Big Island to Ontario, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Ontario, 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 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated January 22, 2025.
Read through reviews of airlines operating flights from The Big Island to Ontario, such as Delta, Alaska Airlines and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,654 reviews

Food

7.2

Entertainment

7.7

Boarding

8.2

Crew

8.7

Overall

8.1

Comfort

8.1

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Southwest
8.1
Very good
4,654 reviews
Southwest
8.1
Very good
4,654 reviews

Food

7.2

Entertainment

7.7

Boarding

8.2

Crew

8.7

Overall

8.1

Comfort

8.1

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Alaska Airlines
8.0
Very good
9,707 reviews
Southwest
8.1
Very good
4,654 reviews

Food

7.2

Entertainment

7.7

Boarding

8.2

Crew

8.7

Overall

8.1

Comfort

8.1

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Delta
8.0
Very good
8,512 reviews
Southwest
8.1
Very good
4,654 reviews

Food

7.2

Entertainment

7.7

Boarding

8.2

Crew

8.7

Overall

8.1

Comfort

8.1

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Hawaiian Airlines
7.9
Good
2,332 reviews
Southwest
8.1
Very good
4,654 reviews

Food

7.2

Entertainment

7.7

Boarding

8.2

Crew

8.7

Overall

8.1

Comfort

8.1

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

United Airlines
7.4
Good
8,975 reviews
Southwest
8.1
Very good
4,654 reviews

Food

7.2

Entertainment

7.7

Boarding

8.2

Crew

8.7

Overall

8.1

Comfort

8.1

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Related info for your journey

Find useful and relevant information for your journey from The Big Island to Ontario. 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 into for flights to Ontario from The Big Island?

    Ontario (ONT), located 3.1 mi from the city center, is the airport you fly into when you book flights from The Big Island to Ontario.

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

    $142 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on Alaska Airlines and United Airlines, with prices starting from $161 and $174, respectively.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from The Big Island to Ontario 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 The Big Island to Ontario?

    Currently, August is the cheapest month in which you can book a flight from The Big Island to Ontario (average of $246). Flying from The Big Island to Ontario in March is currently the most expensive (average of $310). 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

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Alternative routes for The Big Island to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from The Big Island to Ontario

Discover the top airline that operate flights from The Big Island to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$128Average$662FlexibilityNo cancel feeOn-time85%
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