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?

Only Economy Class is available on flights from Ontario to Hilo.

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. Other layover airports each see under 5%.

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

Yes. Being flexible with your travel dates can save you up to 22% on the Ontario to Hilo route. Monday is the cheapest departure day at $534 round-trip on average, while Friday is the most expensive at $680, a difference of $146. 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 0h 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 $411 to $3,691. That means the highest observed fare was about 9x 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 $250, which is 21% 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 $28 for economy cars. Top options include: · Dollar · Thrifty · Hertz · Budget · Alamo

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

Round-trip flights from Ontario to Hilo range from $504 to $679, with an average of $564 over the past 12 months. Anything below $504 counts as a good deal.

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

Southwest ($535) 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 $606. 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 336 minutes over the past 3 months.

Cheap Flights from Ontario to Hilo | KAYAK

Save 21% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Cheapest round-trip

$411

Typical prices: $504-$679

Multiple Airlines

Sat 10/27Mon 10/29

ONT - ITO • 1 stop

Cheapest one-way

$201

Typical prices: $297-$382

Multiple Airlines

Fri 12/14

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

February

Cheapest • 31% price drop

July

Most popular

Good to know

Start a new search

KAYAK searches 100s of sites at once to find you the best travel deals.

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

Tue, Oct 27 - Thu, Oct 29

7:00 am - 1:06 pmONT Ontario-ITO Hilo Intl

9h 06m1 stop Honolulu

4:51 pm - 10:17 amITO Hilo Intl-ONT Ontario

14h 26m2 stops Honolulu Seattle/Tacoma Intl

$411Multiple Airlines

Tue, Oct 27 - Thu, Oct 29

7:00 am - 1:06 pmONT Ontario-ITO Hilo Intl

9h 06m1 stop Honolulu

9:26 am - 9:29 pmITO Hilo Intl-ONT Ontario

9h 03m1 stop Honolulu

$435Multiple Airlines

Wed, Oct 21 - Mon, Oct 26

2:13 pm - 7:04 amONT Ontario-ITO Hilo Intl

19h 51m2 stops Seattle/Tacoma Intl Honolulu

6:18 pm - 10:17 amITO Hilo Intl-ONT Ontario

12h 59m2 stops Honolulu Seattle/Tacoma Intl

$451Multiple Airlines

Tue, Oct 27 - Thu, Oct 29

6:02 am - 4:19 pmONT Ontario-ITO Hilo Intl

13h 17m2 stops Seattle/Tacoma Intl Honolulu

6:18 pm - 10:17 amITO Hilo Intl-ONT Ontario

12h 59m2 stops Honolulu Seattle/Tacoma Intl

$455Multiple Airlines

Wed, Oct 21 - Mon, Oct 26

2:13 pm - 7:04 amONT Ontario-ITO Hilo Intl

19h 51m2 stops Seattle/Tacoma Intl Honolulu

7:30 pm - 9:29 pmITO Hilo Intl-ONT Ontario

22h 59m1 stop Honolulu

$497Multiple Airlines

Tue, Oct 27 - Thu, Oct 29

7:00 am - 1:06 pmONT Ontario-ITO Hilo Intl

9h 06m1 stop Honolulu

4:51 pm - 10:17 amITO Hilo Intl-ONT Ontario

14h 26m2 stops Honolulu Seattle/Tacoma Intl

$525Multiple Airlines

Fri, Oct 9 - Mon, Oct 12

8:00 am - 6:15 pmONT Ontario-ITO Hilo Intl

13h 15m1 stop Honolulu

8:45 pm - 7:50 amITO Hilo Intl-ONT Ontario

8h 05m1 stop Las Vegas Harry Reid Intl

$535Southwest

Fri, Oct 9 - Mon, Oct 12

8:00 am - 2:35 pmONT Ontario-ITO Hilo Intl

9h 35m1 stop Honolulu

8:45 pm - 10:20 amITO Hilo Intl-ONT Ontario

10h 35m2 stops Las Vegas Harry Reid Intl Sacramento Intl

$540Southwest

Wed, Oct 7 - Wed, Oct 14

11:25 am - 6:15 pmONT Ontario-ITO Hilo Intl

9h 50m2 stops San Jose Honolulu

6:00 am - 8:55 pmITO Hilo Intl-ONT Ontario

11h 55m2 stops Honolulu San Jose

$610Southwest

Fri, Oct 9 - Mon, Oct 12

6:30 am - 2:35 pmONT Ontario-ITO Hilo Intl

11h 05m2 stops Sacramento Intl Honolulu

8:45 pm - 9:40 amITO Hilo Intl-ONT Ontario

9h 55m2 stops Las Vegas Harry Reid Intl Oakland

$710Southwest

Recent last minute flight deals from Ontario to Hilo

Thu, Sep 3 - Mon, Sep 14

9:31 am - 2:25 pmONT Ontario-ITO Hilo Intl

7h 54m1 stop Honolulu

5:58 pm - 9:51 amITO Hilo Intl-ONT Ontario

12h 53m2 stops Honolulu Portland

$630Multiple Airlines

Sat, Sep 5 - Mon, Sep 14

6:02 am - 4:12 pmONT Ontario-ITO Hilo Intl

13h 10m2 stops Seattle/Tacoma Intl Honolulu

6:49 pm - 11:16 amITO Hilo Intl-ONT Ontario

13h 27m2 stops Honolulu Seattle/Tacoma Intl

$640Multiple Airlines

Thu, Sep 3 - Mon, Sep 14

9:31 am - 2:25 pmONT Ontario-ITO Hilo Intl

7h 54m1 stop Honolulu

9:26 am - 10:10 pmITO Hilo Intl-ONT Ontario

9h 44m1 stop Honolulu

$665Multiple Airlines

Sat, Sep 5 - Mon, Sep 14

9:31 am - 2:25 pmONT Ontario-ITO Hilo Intl

7h 54m1 stop Honolulu

11:27 am - 10:10 pmITO Hilo Intl-ONT Ontario

7h 43m1 stop Honolulu

$715Multiple Airlines

Fri, Sep 4 - Mon, Sep 14

9:31 am - 3:13 pmONT Ontario-ITO Hilo Intl

8h 42m1 stop Honolulu

11:27 am - 10:10 pmITO Hilo Intl-ONT Ontario

7h 43m1 stop Honolulu

$715Multiple Airlines

Thu, Sep 3 - Mon, Sep 7

9:31 am - 4:58 pmONT Ontario-ITO Hilo Intl

10h 27m1 stop Honolulu

8:45 pm - 2:16 pmITO Hilo Intl-ONT Ontario

14h 31m2 stops Honolulu Seattle/Tacoma Intl

$722Multiple Airlines

Thu, Sep 3 - Mon, Sep 7

9:31 am - 4:58 pmONT Ontario-ITO Hilo Intl

10h 27m1 stop Honolulu

7:44 pm - 11:16 amITO Hilo Intl-ONT Ontario

12h 32m2 stops Honolulu Seattle/Tacoma Intl

$722Multiple Airlines

Thu, Sep 3 - Sun, Sep 6

9:31 am - 2:25 pmONT Ontario-ITO Hilo Intl

7h 54m1 stop Honolulu

6:00 am - 11:24 pmITO Hilo Intl-ONT Ontario

14h 24m2 stops Honolulu Seattle/Tacoma Intl

$722Multiple Airlines

Thu, Sep 3 - Sun, Sep 6

6:02 am - 4:58 pmONT Ontario-ITO Hilo Intl

13h 56m2 stops Seattle/Tacoma Intl Honolulu

6:00 am - 11:24 pmITO Hilo Intl-ONT Ontario

14h 24m2 stops Honolulu Seattle/Tacoma Intl

$732Multiple Airlines

Thu, Sep 3 - Mon, Sep 7

6:02 am - 4:58 pmONT Ontario-ITO Hilo Intl

13h 56m2 stops Seattle/Tacoma Intl Honolulu

8:45 pm - 2:16 pmITO Hilo Intl-ONT Ontario

14h 31m2 stops Honolulu Seattle/Tacoma Intl

$732Multiple 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 from Ontario to Hilo with more confidence.

Prices

Airlines

Layovers

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

Monday is the cheapest day of the week to fly from Ontario to Hilo, it is 6% cheaper than the average day. Friday is the most expensive day with flight prices 20% higher than average. Based on deals found by KAYAK users in the last 12 months.

Find deals

Low season	April
High season	July
Cheapest flight	$201

Best time to beat the crowds but there is an average 2% increase in price.

Most popular time to fly with an average 13% increase in price.

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.

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?
Only Economy Class is available on flights from Ontario to Hilo.
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. Other layover airports each see under 5%.
Can I save money by using flexible dates for flights from Ontario to Hilo?
Yes. Being flexible with your travel dates can save you up to 22% on the Ontario to Hilo route. Monday is the cheapest departure day at $534 round-trip on average, while Friday is the most expensive at $680, a difference of $146. 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 0h 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 $411 to $3,691. That means the highest observed fare was about 9x 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 $250, which is 21% 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 $28 for economy cars. Top options include:
· Dollar
· Thrifty
· Hertz
· Budget
· Alamo
How much should I expect to pay for a Ontario to Hilo flight?
Round-trip flights from Ontario to Hilo range from $504 to $679, with an average of $564 over the past 12 months. Anything below $504 counts as a good deal.

If your dates can be flexible, aim for a Monday departure instead of Friday. On this route, Monday flights average $534 - about $146 less than Friday (21% savings) based on the last 12 months.
If you can choose when to travel, plan your Ontario to Hilo trip for February. Fares historically average $392 round-trip in that month - typically $383 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

Everything you need to know for your flight from Ontario to Hilo

Airports

Cabin class

Complete your trip

Direct Flights

Flights to other cities

Origins

Other airports

Return flight deals

Information on your arrival and departure airports

Ontario (ONT)

Hilo (ITO)

ONT - ITO

$201 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?

What is the cheapest airline 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

Everything you need to know for your flight from Ontario to Hilo

Information on your arrival and departure airports

Cabin class types available on flights from Ontario to Hilo

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

Find direct flights to and from Ontario and Hilo

Flights to other popular destinations

Flights from domestic origins to Hilo

Choose which airport to fly into in Hilo

Find deals for your return flight