ITO - ONT

$268 Find Cheap Flights from Hilo to Ontario - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$585
Typical prices: $515-$630
Multiple Airlines
Sun 3/4Wed 3/7
ITO - ONT • 1 stop
Cheapest one-way
$268
Typical prices: $292-$410
Southwest
Sun 12/23
ITO - ONT • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Hilo and Ontario. You'll need to take a connecting flight to reach the destination.
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Cheap Flights from Hilo to Ontario (ITO-ONT)

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

Recent round-trip flight deals from Hilo to Ontario

Thu, Mar 4 - Sun, Mar 7
Multiple Airlines Logo
11:02 am - 9:28 pmITO  Hilo Intl-ONT Ontario
8h 26m1 stop Honolulu
Multiple Airlines Logo
9:00 am - 3:22 pmONT  Ontario-ITO Hilo Intl
8h 22m1 stop Honolulu
$585Multiple Airlines
Thu, Mar 4 - Sun, Mar 7
Multiple Airlines Logo
11:02 am - 9:28 pmITO  Hilo Intl-ONT Ontario
8h 26m1 stop Honolulu
Multiple Airlines Logo
9:00 am - 3:22 pmONT  Ontario-ITO Hilo Intl
8h 22m1 stop Honolulu
$585Multiple Airlines
Tue, Oct 27 - Sat, Oct 31
Southwest Logo
6:00 am - 7:40 pmITO  Hilo Intl-ONT Ontario
10h 40m2 stops Honolulu Las Vegas Harry Reid Intl
Southwest Logo
8:00 am - 2:25 pmONT  Ontario-ITO Hilo Intl
9h 25m1 stop Honolulu
$605Southwest
Tue, Oct 27 - Sat, Oct 31
Southwest Logo
6:55 pm - 7:50 amITO  Hilo Intl-ONT Ontario
9h 55m2 stops Honolulu Las Vegas Harry Reid Intl
Southwest Logo
5:40 am - 2:25 pmONT  Ontario-ITO Hilo Intl
11h 45m2 stops Las Vegas Harry Reid Intl Honolulu
$615Southwest
Thu, Nov 19 - Wed, Nov 25
Multiple Airlines Logo
6:00 am - 11:06 pmITO  Hilo Intl-ONT Ontario
15h 06m2 stops Honolulu Seattle/Tacoma Intl
Multiple Airlines Logo
7:40 am - 2:21 pmONT  Ontario-ITO Hilo Intl
8h 41m1 stop Honolulu
$656Multiple Airlines
Thu, Nov 19 - Wed, Nov 25
Multiple Airlines Logo
6:00 am - 11:06 pmITO  Hilo Intl-ONT Ontario
15h 06m2 stops Honolulu Seattle/Tacoma Intl
Multiple Airlines Logo
11:55 am - 7:04 amONT  Ontario-ITO Hilo Intl
21h 09m2 stops Seattle/Tacoma Intl Honolulu
$661Multiple Airlines
Thu, Nov 19 - Wed, Nov 25
Multiple Airlines Logo
2:54 pm - 9:23 pmITO  Hilo Intl-ONT Ontario
28h 29m1 stop Honolulu
Multiple Airlines Logo
7:40 am - 4:27 pmONT  Ontario-ITO Hilo Intl
10h 47m1 stop Honolulu
$671Multiple Airlines
Sat, Nov 7 - Wed, Nov 11
Multiple Airlines Logo
12:38 pm - 10:43 pmITO  Hilo Intl-ONT Ontario
8h 05m1 stop Honolulu
Multiple Airlines Logo
4:09 pm - 2:22 pmONT  Ontario-ITO Hilo Intl
24h 13m2 stops Seattle/Tacoma Intl Honolulu
$686Multiple Airlines
Sat, Nov 7 - Wed, Nov 11
Multiple Airlines Logo
4:59 pm - 11:18 amITO  Hilo Intl-ONT Ontario
16h 19m2 stops Honolulu Seattle/Tacoma Intl
Multiple Airlines Logo
4:09 pm - 3:22 pmONT  Ontario-ITO Hilo Intl
25h 13m2 stops Seattle/Tacoma Intl Honolulu
$696Multiple Airlines
Thu, Dec 17 - Mon, Dec 21
Southwest Logo
8:00 am - 10:10 pmITO  Hilo Intl-ONT Ontario
12h 10m1 stop Honolulu
Southwest Logo
5:20 am - 2:30 pmONT  Ontario-ITO Hilo Intl
11h 10m2 stops Sacramento Intl Honolulu
$700Southwest
Booking Insights

Price, demand and travel trends for Hilo to Ontario flights

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

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

Southwest ($605) and American Airlines ($701) are the cheapest airlines to fly round-trip from Hilo to Ontario according to KAYAK data over the last 5 days.

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Key details for Hilo to Ontario flights

Cheapest flight

$268
One-way flight from Hilo to Ontario

When to book flights from Hilo to Ontario

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

Your Hilo to Ontario flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

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

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

  • How long is a flight from Hilo to Ontario?

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

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

    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 Hilo to Ontario 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 $585 to $3,535. That means the highest observed fare was about 6x higher than the lowest one.

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

    One-way fares from Hilo to Ontario are currently higher than usual. Average one-way flight prices are about $391, which is 10% above the typical average for this route.

  • What car rental options are available at Ontario Airport (ONT)?

    Ontario Airport (ONT) hosts 5 major car rental companies, with daily rates starting from around $18 for economy cars. Top options include:

    • Fox
    • Thrifty
    • Europcar
    • Dollar
    • Alamo

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

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

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

    Most connecting flights from Hilo to Ontario 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 Hilo to Ontario?

    Yes. Flexible dates can save you up to 14% on flights from Hilo to Ontario. Tuesday is the cheapest departure day at $545 round-trip on average, while Thursday is the most expensive at $630, a difference of $85.

    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 Hilo and Ontario?

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

  • What popular places can I visit in Ontario?

    Some of the most popular sights in Ontario are Ontario Convention Center and Cucamonga-Guasti Regional Park. These are among the most viewed places in Ontario on KAYAK.

Your guide to booking Hilo to Ontario flights

Get tips on when to book, when to fly and what to know before your trip.

More options for your flight from Hilo to Ontario

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

Car rentals in Ontario
Hotels in Ontario
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