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$277+ 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 11/16. Fares are subject to change and may not be available on all flights or dates of travel.
ITO — ONT
ago. 19 — ago. 261
mar. 8/19
mar. 8/26
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 agosto 14, 2025.

Round-trip from

$372
(Alaska Airlines)

One-way from

$277
(Alaska Airlines)

Popular in

July

Cheapest in

August

Average price

$286
From Hilo Intl to Ontario
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One-way flight from Hilo Intl to Ontario
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Highest demand for flights based on searches. 4% potential increase in price ($22 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in August 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 agosto 14, 2025.

This Alaska Airlines deal was found by Cheapflights users on 8/13. 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.
jue. 9/117:00 pmITO - ONT
2 stops12h 44mAlaska Airlines
lun. 9/156:00 amONT - ITO
2 stops14h 39mAlaska Airlines
Deal found 8/13$372
This Hawaiian Airlines deal was found by Cheapflights users on 8/12. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/119:43 amITO - ONT
1 stop8h 27mHawaiian Airlines
lun. 9/1510:09 amONT - ITO
1 stop9h 47mHawaiian Airlines
Deal found 8/12$456
This Alaska Airlines deal was found by Cheapflights users on 8/12. 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.
jue. 9/187:47 amITO - ONT
1 stop10h 23mAlaska Airlines
mié. 9/2410:09 amONT - ITO
1 stop9h 47mAlaska Airlines
Deal found 8/12$491
This Trip.com deal was found by Cheapflights users on 8/12. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 8/296:00 amITO - ONT
1 stop12h 10mMultiple Airlines
mar. 9/28:35 amONT - ITO
1 stop12h 55mMultiple Airlines
Deal found 8/12$965
This Alaska Airlines deal was found by Cheapflights users on 8/13. 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.
mié. 8/279:43 amITO - ONT
1 stop8h 27mAlaska Airlines
mié. 9/38:35 amONT - ITO
1 stop8h 36mAlaska Airlines
Deal found 8/13$1,061
This Alaska Airlines deal was found by Cheapflights users on 8/13. 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.
vie. 8/299:43 amITO - ONT
1 stop8h 27mAlaska Airlines
mar. 9/28:35 amONT - ITO
1 stop8h 36mAlaska Airlines
Deal found 8/13$1,091
This Alaska Airlines deal was found by Cheapflights users on 8/13. 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.
mar. 8/269:43 amITO - ONT
1 stop8h 27mAlaska Airlines
mar. 9/28:35 amONT - ITO
1 stop8h 36mAlaska Airlines
Deal found 8/13$1,149
This Alaska Airlines deal was found by Cheapflights users on 8/13. 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.
mié. 8/139:34 amITO - ONT
1 stop8h 53mAlaska Airlines
dom. 8/179:00 amONT - ITO
1 stop8h 15mAlaska Airlines
Deal found 8/13$1,501

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 agosto 14, 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

jue. 9/11

7:00 pm-9:26 am

2 stops11h 26m

Ontario

lun. 9/15

11:39 am-10:17 pm

2 stops13h 38m

$372

HiloOntario

ITO - ONT

ITOONT

Hilo Intl

jue. 9/11

9:43 am-9:10 pm

1 stop8h 27m

Ontario

lun. 9/15

10:09 am-4:56 pm

1 stop9h 47m

$456

HiloOntario

ITO - ONT

ITOONT

Hilo Intl

jue. 9/18

7:47 am-9:10 pm

1 stop10h 23m

Ontario

mié. 9/24

10:09 am-4:56 pm

1 stop9h 47m

$491

HiloOntario

ITO - ONT

ITOONT

Hilo Intl

vie. 9/26

9:43 am-9:10 pm

1 stop8h 27m

Ontario

vie. 10/3

10:09 am-3:59 pm

1 stop8h 50m

$762

HiloOntario

ITO - ONT

ITOONT

Hilo Intl

dom. 11/16

7:43 pm-11:05 am

2 stops13h 22m

$277

HiloOntario

ITO - ONT

ITOONT

Hilo Intl

dom. 11/16

6:00 am-5:14 pm

1 stop9h 14m

$277

HiloOntario

ITO - ONT

ITOONT

Hilo Intl

jue. 10/16

9:49 am-8:37 pm

1 stop7h 48m

$319

HiloOntario

ITO - ONT

ITOONT

Hilo Intl

mar. 8/26

4:28 pm-10:44 am

2 stops15h 16m

$332

HiloOntario

ITO - ONT

ITOONT

Hilo Intl

sáb. 9/6

7:00 pm-2:12 pm

2 stops16h 12m

$332

HiloOntario

ITO - ONT

ITOONT

Hilo Intl

sáb. 9/6

7:47 am-9:10 pm

1 stop10h 23m

$360

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/14

Showing 1-10 of 13 results
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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, August is the cheapest month in which you can book a flight from Hilo to Ontario (average of $246). Flying from Hilo to Ontario in March is currently the most expensive (average of $328). 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.

  • 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, August is the cheapest month in which you can book a flight from Hilo to Ontario (average of $246). Flying from Hilo to Ontario in March is currently the most expensive (average of $328). 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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