$204 Cheap Flights from Ontario (ONT) to Hilo (ITO)

View $204 flight on Mon, Feb 23, 2026Opens in a new window

Popular airlines from Los Angeles - Ontario Intl. Airport (ONT) to Hilo Intl. Airport (ITO)

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Cheap Flights from Ontario to Hilo (ONT-ITO)

Prices were available within the past 7 days and start at $204 for one-way flights and $408 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Wed, Jan 14 - Thu, Jan 22
ONT
Ontario
ITO
Hawaii Island
$408 Roundtrip, found 7 hours ago
$408
Roundtrip
found 7 hours ago
Select Alaska Airlines flight, departing Wed, Jan 14 from Ontario to Hawaii Island, returning Thu, Jan 22, priced at $408 found 7 hours ago
Alaska Airlines
Wed, Jan 14 - Thu, Jan 22
ONT
Ontario
ITO
Hawaii Island
$409 Roundtrip, found 7 hours ago
$409
Roundtrip
found 7 hours ago
Select Alaska Airlines flight, departing Wed, Jan 14 from Ontario to Hawaii Island, returning Thu, Jan 22, priced at $409 found 7 hours ago
Hawaiian Airlines
Mon, Jan 12 - Wed, Jan 21
ONT
Ontario
ITO
Hawaii Island
$418 Roundtrip, found 1 day ago
$418
Roundtrip
found 1 day ago
Select Hawaiian Airlines flight, departing Mon, Jan 12 from Ontario to Hawaii Island, returning Wed, Jan 21, priced at $418 found 1 day ago
Alaska Airlines
Sun, Dec 7 - Tue, Dec 16
ONT
Ontario
ITO
Hawaii Island
$428 Roundtrip, found 1 day ago
$428
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Sun, Dec 7 from Ontario to Hawaii Island, returning Tue, Dec 16, priced at $428 found 1 day ago
Hawaiian Airlines
Sun, Jan 11 - Tue, Jan 20
ONT
Ontario
ITO
Hawaii Island
$429 Roundtrip, found 1 day ago
$429
Roundtrip
found 1 day ago
Select Hawaiian Airlines flight, departing Sun, Jan 11 from Ontario to Hawaii Island, returning Tue, Jan 20, priced at $429 found 1 day ago
Hawaiian Airlines
Mon, Jan 12 - Tue, Jan 20
ONT
Ontario
ITO
Hawaii Island
$432 Roundtrip, found 3 days ago
$432
Roundtrip
found 3 days ago
Select Hawaiian Airlines flight, departing Mon, Jan 12 from Ontario to Hawaii Island, returning Tue, Jan 20, priced at $432 found 3 days ago
Hawaiian Airlines
Mon, Jan 12 - Thu, Jan 15
ONT
Ontario
ITO
Hawaii Island
$437 Roundtrip, found 1 day ago
$437
Roundtrip
found 1 day ago
Select Hawaiian Airlines flight, departing Mon, Jan 12 from Ontario to Hawaii Island, returning Thu, Jan 15, priced at $437 found 1 day ago
Southwest Airlines
Tue, Mar 24 - Tue, Mar 31
ONT
Ontario
ITO
Hawaii Island
$514 Roundtrip, found 15 hours ago
$514
Roundtrip
found 15 hours ago
Select Southwest Airlines flight, departing Tue, Mar 24 from Ontario to Hawaii Island, returning Tue, Mar 31, priced at $514 found 15 hours ago
United
Tue, Nov 18 - Tue, Nov 25
ONT
Ontario
ITO
Hawaii Island
$723 Roundtrip, found 6 days ago
$723
Roundtrip
found 6 days ago
Select United flight, departing Tue, Nov 18 from Ontario to Hawaii Island, returning Tue, Nov 25, priced at $723 found 6 days ago
Delta
Mon, Nov 24 - Wed, Nov 26
ONT
Ontario
ITO
Hawaii Island
$846 Roundtrip, found 1 day ago
$846
Roundtrip
found 1 day ago
Select Delta flight, departing Mon, Nov 24 from Ontario to Hawaii Island, returning Wed, Nov 26, priced at $846 found 1 day ago

Find the cheapest month to fly from Ontario (ONT) to Hilo (ITO)

September is typically the cheapest month to fly

From $329 - $626 per traveler.

Alternative airports near Hilo

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Hilo Intl. ITO. Cheapest option available. Flights from $564
ITO
Hilo Intl.
Cheapest
Flights from $564

Frequently asked questions

How much does a flight from Los Angeles - Ontario Intl. Airport (ONT) to Hilo Intl. Airport (ITO) cost?
Grab a cheap one-way flight from $204 or cheap return flight from $408 from Los Angeles - Ontario Intl. Airport (ONT) to Hilo Intl. Airport (ITO) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Los Angeles - Ontario Intl. Airport (ONT) to Hilo Intl. Airport (ITO)?
The cheapest month to fly from ONT to ITO is January, when there's less demand. Off-peak season is typically when airlines offer better prices between these airports.
What is the cheapest airline that flies from Los Angeles - Ontario Intl. Airport (ONT) to Hilo Intl. Airport (ITO)?
Expedia's filter tool lets you easily compare different airlines, departure times and fares all in one place. Customize the search to your preferences, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest ONT to ITO flight.
How many flights per day from Los Angeles - Ontario Intl. Airport (ONT) to Hilo Intl. Airport (ITO)?
There are no daily nonstop flights from Los Angeles - Ontario Intl. Airport (ONT) to Hilo Intl. Airport (ITO). But you can book flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be cruising above the clouds in no time.
What day of the week has the most flights from ONT to ITO?
You'll typically find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Los Angeles - Ontario Intl. Airport (ONT) to Hilo Intl. Airport (ITO)?
To land at Hilo Intl. Airport (ITO) on schedule, select a flight that takes off from Los Angeles - Ontario Intl. Airport (ONT) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Los Angeles - Ontario Intl. Airport (ONT) to Hilo Intl. Airport (ITO) last-minute?
Last-minute bookings from ONT to ITO are usually more expensive. To lock in the best prices, start looking for flights well in advance. That said, if you can play around with your travel dates, it's possible to land a cheap fare just before your departure.
Is it cheaper to book an ONT to ITO flight and hotel package?
Compared with arranging hotels and flights separately, booking an ONT to ITO flight and hotel package with Expedia could result in significant savings. What's more, managing everything in one place takes the hassle out of travel planning. Simply secure your flights and choose from our extensive range of hotels, then customize your trip with extras like activities and car rentals.
Can I cancel or change the date of my flight from Los Angeles - Ontario Intl. Airport (ONT) to Hilo Intl. Airport (ITO)?
If you booked your ONT to ITO flight within the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Los Angeles - Ontario Intl.
Destination airport
Hilo Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Hawaiian Airlines, Southwest Airlines, United
Roundtrip price
$408
Distance
2493 mi

Book with confidence

Ontario to Hilo Flights

The cheapest times to fly from Ontario to Hilo

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Ontario to Hilo are during the month of January. You can find some of the cheapest flights from Ontario to Hilo with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Ontario to Hilo

Sunday is one of the best days to book for cheap flights from Ontario to Hilo: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Ontario to Hilo

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Ontario to Hilo in 2025. You can also book with separate airlines for your outbound and return journeys, from $204 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Ontario to Hilo flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Ontario to Hilo airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Ontario to Hilo Flights

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*Available to One Key members.