$162 Cheap Flights from Hilo (ITO) to Ontario (ONT)

View $162 flight on Wed, Jan 21, 2026Opens in a new window

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

Cheap Flights from Hilo to Ontario (ITO-ONT)

Prices were available within the past 7 days and start at $162 for one-way flights and $344 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Tue, Nov 4 - Wed, Nov 12
ITO
Hawaii Island
ONT
Ontario
$344 Roundtrip, found 2 days ago
$344
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Tue, Nov 4 from Hawaii Island to Ontario, returning Wed, Nov 12, priced at $344 found 2 days ago
Alaska Airlines
Tue, Oct 28 - Mon, Nov 10
ITO
Hawaii Island
ONT
Ontario
$376 Roundtrip, found 6 days ago
$376
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Tue, Oct 28 from Hawaii Island to Ontario, returning Mon, Nov 10, priced at $376 found 6 days ago
Hawaiian Airlines
Mon, Oct 27 - Mon, Nov 10
ITO
Hawaii Island
ONT
Ontario
$379 Roundtrip, found 6 days ago
$379
Roundtrip
found 6 days ago
Select Hawaiian Airlines flight, departing Mon, Oct 27 from Hawaii Island to Ontario, returning Mon, Nov 10, priced at $379 found 6 days ago
Alaska Airlines
Wed, Oct 29 - Wed, Nov 12
ITO
Hawaii Island
ONT
Ontario
$386 Roundtrip, found 6 days ago
$386
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Wed, Oct 29 from Hawaii Island to Ontario, returning Wed, Nov 12, priced at $386 found 6 days ago
Hawaiian Airlines
Mon, Oct 27 - Wed, Nov 12
ITO
Hawaii Island
ONT
Ontario
$388 Roundtrip, found 6 days ago
$388
Roundtrip
found 6 days ago
Select Hawaiian Airlines flight, departing Mon, Oct 27 from Hawaii Island to Ontario, returning Wed, Nov 12, priced at $388 found 6 days ago
Hawaiian Airlines
Tue, Oct 28 - Thu, Nov 13
ITO
Hawaii Island
ONT
Ontario
$395 Roundtrip, found 6 days ago
$395
Roundtrip
found 6 days ago
Select Hawaiian Airlines flight, departing Tue, Oct 28 from Hawaii Island to Ontario, returning Thu, Nov 13, priced at $395 found 6 days ago
Hawaiian Airlines
Tue, Nov 4 - Thu, Nov 13
ITO
Hawaii Island
ONT
Ontario
$397 Roundtrip, found 2 days ago
$397
Roundtrip
found 2 days ago
Select Hawaiian Airlines flight, departing Tue, Nov 4 from Hawaii Island to Ontario, returning Thu, Nov 13, priced at $397 found 2 days ago
Southwest Airlines
Tue, Oct 21 - Thu, Oct 30
ITO
Hawaii Island
ONT
Ontario
$429 Roundtrip, found 3 days ago
$429
Roundtrip
found 3 days ago
Select Southwest Airlines flight, departing Tue, Oct 21 from Hawaii Island to Ontario, returning Thu, Oct 30, priced at $429 found 3 days ago
United
Thu, Oct 30 - Sun, Nov 16
ITO
Hawaii Island
ONT
Ontario
$642 Roundtrip, found 6 days ago
$642
Roundtrip
found 6 days ago
Select United flight, departing Thu, Oct 30 from Hawaii Island to Ontario, returning Sun, Nov 16, priced at $642 found 6 days ago
Delta
Tue, Oct 21 - Thu, Oct 30
ITO
Hawaii Island
ONT
Ontario
$754 Roundtrip, found 3 days ago
$754
Roundtrip
found 3 days ago
Select Delta flight, departing Tue, Oct 21 from Hawaii Island to Ontario, returning Thu, Oct 30, priced at $754 found 3 days ago

Alternative airports near Ontario

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

Select flight to John Wayne SNA. Cheapest option available. Average driving time to city center is 42 minutes. Flights from $741
SNA
John Wayne
Cheapest
Average driving time to city center42 min
Flights from $741

Frequently asked questions

How much does a flight from Hilo Intl. Airport (ITO) to Los Angeles - Ontario Intl. Airport (ONT) cost?
Lock in a cheap one-way flight from $162 or cheap return flight from $344 from Hilo Intl. Airport (ITO) to Los Angeles - Ontario Intl. Airport (ONT) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Hilo Intl. Airport (ITO) to Los Angeles - Ontario Intl. Airport (ONT)?
Flying in November is a good way to save, as it's the cheapest month for flights between ITO and ONT. You'll usually find the lowest prices during off-peak months.
What is the cheapest airline that flies from Hilo Intl. Airport (ITO) to Los Angeles - Ontario Intl. Airport (ONT)?
To find the cheapest airline flying from ITO to ONT, use Expedia's filter tool. Tailor your search based on what's important to you, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.
How many flights per day from Hilo Intl. Airport (ITO) to Los Angeles - Ontario Intl. Airport (ONT)?
Nonstop flights from Hilo Intl. Airport (ITO) to Los Angeles - Ontario Intl. Airport (ONT) aren't available daily, so you'll need to take a flight with a layover. Explore your options with our filter tool. Enter your travel dates and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from ITO to ONT?
You'll typically find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can vary 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 Hilo Intl. Airport (ITO) to Los Angeles - Ontario Intl. Airport (ONT)?
To avoid possible delays on the Hilo Intl. Airport (ITO) to Los Angeles - Ontario Intl. Airport (ONT) route, aim to fly before 3 PM. Later flights have a 22% higher chance of cancellation.**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 Hilo Intl. Airport (ITO) to Los Angeles - Ontario Intl. Airport (ONT) last-minute?
Last-minute bookings from ITO to ONT are typically more expensive. For the lowest rates, start looking for flights well ahead of time. That said, if your travel plans are flexible, it's possible to find a cheap fare right before your trip.
Is it cheaper to book an ITO to ONT flight and hotel package?
You can save money by securing an ITO to ONT flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one place. After selecting your ideal flights and accommodations, consider adding extras including activities, tours and car rentals.
Can I cancel or change the date of my flight from Hilo Intl. Airport (ITO) to Los Angeles - Ontario Intl. Airport (ONT)?
In most cases, you're able to cancel or reschedule your ITO to ONT flight. However, additional fees may apply, especially if your booking was made more than 24 hours ago. Double-check your itinerary for the airline's fees and rules on flight changes, or if you need further details, go to our Customer Service portal.

Travel information

Travel information

Origin airport
Hilo Intl.
Destination airport
Los Angeles - Ontario Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Southwest Airlines, United
Roundtrip price
$343
Distance
2493 mi

Book with confidence

Book with confidence

Hilo to Ontario Flights

The cheapest times to fly from Hilo to Ontario

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 Hilo to Ontario are during the month of November. You can find some of the cheapest flights from Hilo to Ontario with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Hilo to Ontario

Sunday is one of the best days to book for cheap flights from Hilo to Ontario: 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 Hilo to Ontario

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 Hilo to Ontario in 2025. You can also book with separate airlines for your outbound and return journeys, from $162 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 Hilo to Ontario 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 Hilo to Ontario 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.

 

Hilo to Ontario Flights

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*Available to One Key members.