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$204+ Cheap flights from Hilo to Ontario (ITO - ONT)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/10. Fares are subject to change and may not be available on all flights or dates of travel.
ITO — ONT
Nov 26 — Dec 31
Wed 11/26
Wed 12/3
1 adult, Economy
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Cheap flight deals from Hilo to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Hilo (ITO) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 27, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$496
(Alaska Airlines)

One-way from

$204
(Alaska Airlines)

Popular in

July

Cheapest in

August

Average price

$634
Provider with most accurate pricing for Hilo Intl-Ontario flight deals.
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Provider most trusted by Cheapflights users for Hilo Intl-Ontario flights.
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From Hilo Intl to Ontario
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One-way flight from Hilo Intl to Ontario
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High demand for flights, 0% potential price rise
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Cheapest flight prices on average. 2% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from Hilo to Ontario

Cheapest flights from Hilo to Ontario
Explore the most affordable flight options available from Hilo to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 27, 2025.

This Alaska Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/109:31 amITO - ONT
1 stop8h 52mAlaska Airlines
Wed 12/177:00 amONT - ITO
1 stop11h 05mAlaska Airlines
Deal found 10/26$496
This Alaska Airlines deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/410:56 amITO - ONT
1 stop7h 27mAlaska Airlines
Sat 12/67:00 amONT - ITO
1 stop11h 05mAlaska Airlines
Deal found 10/27$521
This KAYAK deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/157:45 amITO - ONT
1 stop7h 29mAlaska Airlines
Tue 11/186:00 amONT - ITO
2 stops14h 00mAlaska Airlines
Deal found 10/27$524
This Alaska Airlines deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/97:45 amITO - ONT
1 stop7h 29mAlaska Airlines
Thu 11/139:47 amONT - ITO
1 stop8h 17mAlaska Airlines
Deal found 10/25$571
This Orbitz deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/309:00 pmITO - ONT
1 stop17h 14mAlaska Airlines
Mon 11/36:00 amONT - ITO
2 stops14h 00mAlaska Airlines
Deal found 10/27$601
This Southwest deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2712:50 pmITO - ONT
2 stops19h 30mSouthwest
Thu 12/410:15 amONT - ITO
2 stops9h 55mSouthwest
Deal found 10/25$604
This Alaska Airlines deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/276:44 pmITO - ONT
2 stops13h 11mAlaska Airlines
Thu 12/47:00 amONT - ITO
1 stop10h 17mAlaska Airlines
Deal found 10/25$606
This Alaska Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/119:31 amITO - ONT
1 stop8h 52mAlaska Airlines
Thu 12/188:00 amONT - ITO
1 stop9h 14mAlaska Airlines
Deal found 10/26$641
This Alaska Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/77:45 amITO - ONT
1 stop7h 29mAlaska Airlines
Wed 11/129:47 amONT - ITO
1 stop14h 35mAlaska Airlines
Deal found 10/26$719
This Alaska Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/276:00 amITO - ONT
1 stop8h 14mAlaska Airlines
Thu 10/309:45 amONT - ITO
1 stop7h 57mAlaska Airlines
Deal found 10/26$784

Cheapflights Fare Finder

 
Customize your flight search to find flights from Hilo to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 27, 2025.
Use the filters below to find and compare flights from Hilo to Ontario that are best for you.

Fly from

Hilo

Fly to

Ontario

Route

Depart

Return

Price

HiloOntario

ITO - ONT

ITOONT

Hilo Intl

Wed 12/10

9:31 am-8:23 pm

1 stop8h 52m

Ontario

Wed 12/17

7:00 am-4:05 pm

1 stop11h 05m

$496

HiloOntario

ITO - ONT

ITOONT

Hilo Intl

Sun 11/9

7:45 am-5:14 pm

1 stop7h 29m

Ontario

Thu 11/13

9:47 am-4:04 pm

1 stop8h 17m

$571

HiloOntario

ITO - ONT

ITOONT

Hilo Intl

Thu 11/27

12:50 pm-10:20 am

2 stops19h 30m

Ontario

Thu 12/4

10:15 am-6:10 pm

2 stops9h 55m

$604

HiloOntario

ITO - ONT

ITOONT

Hilo Intl

Thu 11/27

6:44 pm-9:55 am

2 stops13h 11m

Ontario

Thu 12/4

7:00 am-3:17 pm

1 stop10h 17m

$606

HiloOntario

ITO - ONT

ITOONT

Hilo Intl

Thu 12/11

9:31 am-8:23 pm

1 stop8h 52m

Ontario

Thu 12/18

8:00 am-3:14 pm

1 stop9h 14m

$641

HiloOntario

ITO - ONT

ITOONT

Hilo Intl

Fri 11/7

7:45 am-5:14 pm

1 stop7h 29m

Ontario

Wed 11/12

9:47 am-10:22 pm

1 stop14h 35m

$719

HiloOntario

ITO - ONT

ITOONT

Hilo Intl

Tue 3/10

9:47 am-9:55 pm

1 stop9h 08m

Ontario

Thu 3/19

9:50 am-5:01 pm

1 stop10h 11m

$823

HiloOntario

ITO - ONT

ITOONT

Hilo Intl

Tue 3/10

6:00 am-10:37 pm

2 stops13h 37m

Ontario

Thu 3/19

6:00 am-3:23 pm

2 stops12h 23m

$853

HiloOntario

ITO - ONT

ITOONT

Hilo Intl

Sat 11/22

10:55 am-8:31 pm

1 stop7h 36m

Ontario

Sat 11/29

7:50 am-2:30 pm

1 stop8h 40m

$899

HiloOntario

ITO - ONT

ITOONT

Hilo Intl

Wed 12/10

9:31 am-8:23 pm

1 stop8h 52m

$204

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/26

Showing 1-10 of 16 results
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Compare providers for flights from Hilo to Ontario

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Hilo to Ontario in October.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Hilo-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Hilo-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Hilo-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Hilo-Ontario flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Hilo-Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Hilo to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Hilo with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

What is the cheapest month to book a flight from Hilo to Ontario?

Currently, May is the cheapest month in which you can book a flight from Hilo to Ontario (average of $83). Flying from Hilo to Ontario in June is currently the most expensive (average of $216). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Hilo to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Hilo to Ontario?

    A quick flight from Hilo to Ontario can take about 8h 52m. Alaska Airlines provides one of the quickest options available for as low as $496. There are 2491 mi between Hilo and Ontario. Both multi-stop and nonstop flights can be found to your destination and back.

  • Can I find deals for flights from Hilo to Ontario that include hotel bookings?

    Yes. In addition to deals on Hilo to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Hilo to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Hilo to Ontario.

  • Can I find deals for business class flights from Hilo to Ontario?

    Yes. Cheapflights offers flight deals from Hilo to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Hilo to Ontario?

    Currently, May is the cheapest month in which you can book a flight from Hilo to Ontario (average of $83). Flying from Hilo to Ontario in June is currently the most expensive (average of $216). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Hilo to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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