Which airports can I use when flying from Ontario to Hilo?

Flights from Ontario to Hilo usually depart from Ontario (ONT) and arrive at Hilo Intl (ITO).

What cabin classes can I book on flights from Ontario to Hilo?

Two cabin classes are available on flights from Ontario to Hilo: • Economy Class • First Class

Which airports do connecting flights from Ontario to Hilo pass through?

Most connecting flights from Ontario to Hilo pass through Honolulu (HNL), which handles 100% of one-stop traffic on this route.

Can I save money by using flexible dates for flights from Ontario to Hilo?

Yes. Flexible dates can save you up to 21% on flights from Ontario to Hilo. Monday is the cheapest departure day at $541 round-trip on average, while Friday is the most expensive at $680, a difference of $139. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

How long is a flight from Ontario to Hilo?

A nonstop flight from Ontario to Hilo takes 00m, covering 2,491 miles.

Do I need a passport to fly from Ontario to Hilo?

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

Have flight prices from Ontario to Hilo changed much recently?

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $437 to $3,642. That means the highest observed fare was about 8x higher than the lowest one.

How are flight prices from Ontario to Hilo looking right now?

One-way fares from Ontario to Hilo are currently lower than usual. Average one-way flight prices are about $303, which is 11% below the typical average for this route.

What is the time difference between Ontario and Hilo?

Hilo is 3 hours behind Ontario (Hawaii-Aleutian Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

What car rental options are available at Hilo Intl Airport (ITO)?

Hilo Intl Airport (ITO) hosts 5 major car rental companies, with daily rates starting from around $29 for economy cars. Top options include: • Dollar • Hertz • Thrifty • Budget • Alamo

How much should I expect to pay for a Ontario to Hilo flight?

Round-trip flights from Ontario to Hilo range from $525 to $680, with an average of $571 over the past 12 months. Anything below $525 counts as a good deal.

What's the cheapest day of the week to fly from Ontario to Hilo?

Based on deals KAYAK users found in the last 12 months, Monday is the cheapest day of the week to fly from Ontario to Hilo. It’s 6% cheaper than the average day, while Friday is the most expensive, with prices 19% higher.

Which airline is the cheapest to fly from Ontario to Hilo?

Southwest ($441) offered the cheapest round-trip ticket from Ontario to Hilo in the last 5 days.

What is the cheapest layover airport when flying from Ontario to Hilo?

Flights via Honolulu (HNL) offer the most affordable fares, with an average round-trip price of $622. Based on KAYAK data over the past 3 months.

When flying from Ontario to Hilo which airport offers the shortest layover?

Honolulu (HNL) had the shortest average connection time for Ontario to Hilo layovers at 5h 32m over the past 3 months.

$221 CHEAP FLIGHTS from Ontario to Hilo (ONT - ITO)

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Cheapest round-trip

$437

Typical prices: $525-$680

Multiple Airlines

Fri 11/9Sat 11/17

ONT - ITO • 1 stop

Cheapest one-way

$221

Typical prices: $297-$387

Southwest

Sat 11/10

ONT - ITO • 1 stop

Nonstop flights

Not available

There are currently no direct flights between Ontario and Hilo. You'll need to take a connecting flight to reach the destination.

Insights

When to travel

December

Cheapest • 30% price drop

June

Most popular

Good to know

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We hope you love your trip to Hilo!

Flight Deals

Cheap Flights from Ontario to Hilo (ONT-ITO)

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Recent round-trip flight deals from Ontario to Hilo

Mon, Nov 9 - Tue, Nov 17

9:55 am - 6:56 pmONT Ontario-ITO Hilo Intl

11h 01m1 stop Honolulu

8:45 pm - 10:43 pmITO Hilo Intl-ONT Ontario

23h 58m1 stop Honolulu

$437Multiple Airlines

Tue, Nov 10 - Tue, Nov 17

9:00 am - 6:10 pmONT Ontario-ITO Hilo Intl

11h 10m1 stop Honolulu

8:00 am - 10:10 pmITO Hilo Intl-ONT Ontario

12h 10m1 stop Honolulu

$441Southwest

Tue, Nov 10 - Tue, Nov 17

9:00 am - 2:30 pmONT Ontario-ITO Hilo Intl

7h 30m1 stop Honolulu

8:00 am - 10:10 pmITO Hilo Intl-ONT Ontario

12h 10m1 stop Honolulu

$441Southwest

Tue, Nov 10 - Tue, Nov 17

10:25 am - 9:50 pmONT Ontario-ITO Hilo Intl

13h 25m2 stops Oakland Honolulu

11:35 am - 10:10 pmITO Hilo Intl-ONT Ontario

8h 35m1 stop Honolulu

$451Southwest

Mon, Nov 9 - Tue, Nov 17

9:55 am - 6:56 pmONT Ontario-ITO Hilo Intl

11h 01m1 stop Honolulu

7:30 pm - 11:18 amITO Hilo Intl-ONT Ontario

13h 48m2 stops Honolulu Seattle/Tacoma Intl

$460Multiple Airlines

Sun, Jan 10 - Tue, Jan 26

7:00 am - 2:21 pmONT Ontario-ITO Hilo Intl

9h 21m1 stop Honolulu

9:28 am - 9:18 pmITO Hilo Intl-ONT Ontario

9h 50m1 stop Honolulu

$466Multiple Airlines

Tue, Nov 10 - Tue, Nov 17

10:25 am - 9:50 pmONT Ontario-ITO Hilo Intl

13h 25m2 stops Oakland Honolulu

11:35 am - 10:10 pmITO Hilo Intl-ONT Ontario

8h 35m1 stop Honolulu

$474Southwest

Tue, Nov 10 - Tue, Nov 17

10:25 am - 9:50 pmONT Ontario-ITO Hilo Intl

13h 25m2 stops Oakland Honolulu

6:55 pm - 9:20 amITO Hilo Intl-ONT Ontario

12h 25m2 stops Honolulu Phoenix Sky Harbor Intl

$496Southwest

Thu, Jan 21 - Wed, Jan 27

7:00 am - 3:21 pmONT Ontario-ITO Hilo Intl

10h 21m1 stop Honolulu

9:28 am - 9:18 pmITO Hilo Intl-ONT Ontario

9h 50m1 stop Honolulu

$498Multiple Airlines

Sun, Jan 10 - Tue, Jan 26

7:10 am - 5:52 pmONT Ontario-ITO Hilo Intl

12h 42m2 stops Portland Honolulu

11:02 am - 9:18 pmITO Hilo Intl-ONT Ontario

8h 16m1 stop Honolulu

$503Multiple Airlines

Booking Insights

Price, demand and travel trends for Ontario to Hilo flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

Prices

Airlines

Layovers

What's the cheapest day of the week to fly from Ontario to Hilo?: Based on deals KAYAK users found in the last 12 months, Monday is the cheapest day of the week to fly from Ontario to Hilo. It’s 6% cheaper than the average day, while Friday is the most expensive, with prices 19% higher.

Find deals

Low season	February
High season	June
Cheapest flight	$221

Beat the crowds with an average 68% drop in travelers.

The most popular month to fly with an average 75% increase in travelers.

One-way flight from Ontario to Hilo

When to book flights from Ontario to Hilo

Are your dates flexible? Find out the best times to travel from Ontario to Hilo based on our flight data from the last year. Discover the cheapest month and even day to fly.

Estimated round-trip price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

What cabin classes can I book on flights from Ontario to Hilo?
Two cabin classes are available on flights from Ontario to Hilo:

• Economy Class
• First Class
How long is a flight from Ontario to Hilo?
A nonstop flight from Ontario to Hilo takes 00m, covering 2,491 miles.
Do I need a passport to fly from Ontario to Hilo?
No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.
How much should I expect to pay for a Ontario to Hilo flight?
Round-trip flights from Ontario to Hilo range from $525 to $680, with an average of $571 over the past 12 months. Anything below $525 counts as a good deal.
Have flight prices from Ontario to Hilo changed much recently?
Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $437 to $3,642. That means the highest observed fare was about 8x higher than the lowest one.
How are flight prices from Ontario to Hilo looking right now?
One-way fares from Ontario to Hilo are currently lower than usual. Average one-way flight prices are about $303, which is 11% below the typical average for this route.
What car rental options are available at Hilo Intl Airport (ITO)?
Hilo Intl Airport (ITO) hosts 5 major car rental companies, with daily rates starting from around $29 for economy cars. Top options include:

• Dollar
• Hertz
• Thrifty
• Budget
• Alamo
Which airports can I use when flying from Ontario to Hilo?
Flights from Ontario to Hilo usually depart from Ontario (ONT) and arrive at Hilo Intl (ITO).
Which airports do connecting flights from Ontario to Hilo pass through?
Most connecting flights from Ontario to Hilo pass through Honolulu (HNL), which handles 100% of one-stop traffic on this route.
Can I save money by using flexible dates for flights from Ontario to Hilo?
Yes. Flexible dates can save you up to 21% on flights from Ontario to Hilo. Monday is the cheapest departure day at $541 round-trip on average, while Friday is the most expensive at $680, a difference of $139.

KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.
What is the time difference between Ontario and Hilo?
Hilo is 3 hours behind Ontario (Hawaii-Aleutian Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

If your dates are flexible, aim for a Monday departure and avoid flying on Friday. On this route, Monday flights average $541, about $139 less than Friday fares (20% savings) based on the last 12 months.
If you can choose when to travel, plan your Ontario to Hilo trip for December. Fares historically average $401 round-trip in that month - typically $374 less than the most expensive month, which is May (based on the last 12 months).
If you're arriving late at night and need somewhere to stay, check out these hotels close to Hilo Intl Airport.

• Grand Naniloa Hotel Hilo - a DoubleTree by Hilton
• Hilo Hawaiian Hotel, Trademark Collection by Wyndham
• Hilo Reeds Bay Hotel

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ONT - ITO

$221 Find Cheap Flights from Ontario to Hilo - Compare and Save

Everything you should know

Cheap Flights from Ontario to Hilo (ONT-ITO)

Recent round-trip flight deals from Ontario to Hilo

Recent one-way flight deals from Ontario to Hilo

Recent last minute flight deals from Ontario to Hilo

Price, demand and travel trends for Ontario to Hilo flights

What's the cheapest day of the week to fly from Ontario to Hilo?

Which airline is the cheapest to fly from Ontario to Hilo?

What is the cheapest layover airport when flying from Ontario to Hilo?

When flying from Ontario to Hilo which airport offers the shortest layover?

Key details for Ontario to Hilo flights

Low season

High season

Cheapest flight

When to book flights from Ontario to Hilo

Your Ontario to Hilo flight questions, answered

Your guide to booking Ontario to Hilo flights

More options for your flight from Ontario to Hilo

Complete your trip to Hilo with a hotel stay or car rental

Information on your arrival and departure airports

Cabin class types available on flights from Ontario to Hilo

Find direct flights to and from Ontario and Hilo

Flights from domestic origins to Hilo

Flights to other popular destinations

Find deals for your return flight