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Hilo

$176+ Cheap flights from Ontario to Hilo (ONT - ITO)

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 10/27. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — ITO
Aug 25 — Sep 11
Mon 8/25
Mon 9/1
1 adult, Economy
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Cheap flight deals from Ontario to Hilo

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Hilo (ITO). 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 August 20, 2025.

Round-trip from

$356
(Alaska Airlines)

One-way from

$176
(Hawaiian Airlines)

Popular in

June

Cheapest in

May

Average price

$585
From Ontario to Hilo Intl
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One-way flight from Ontario to Hilo Intl
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Highest demand for flights based on searches. 10% potential increase in price ($74 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($21 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 Ontario to Hilo

Cheapest flights from Ontario to Hilo
Explore the most affordable flight options available from Ontario to Hilo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 20, 2025.

This Alaska Airlines deal was found by Cheapflights users on 8/18. 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.
Tue 11/411:59 amONT - ITO
2 stops12h 20mAlaska Airlines
Wed 11/56:00 amITO - ONT
1 stop9h 14mAlaska Airlines
Deal found 8/18$356
This Alaska Airlines deal was found by Cheapflights users on 8/18. 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 10/296:00 amONT - ITO
2 stops14h 40mAlaska Airlines
Wed 11/56:00 amITO - ONT
1 stop9h 14mAlaska Airlines
Deal found 8/18$362
This Alaska Airlines deal was found by Cheapflights users on 8/18. 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 10/2911:59 amONT - ITO
2 stops13h 25mAlaska Airlines
Fri 11/77:43 pmITO - ONT
2 stops12h 15mAlaska Airlines
Deal found 8/18$372
This Alaska Airlines deal was found by Cheapflights users on 8/18. 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.
Tue 11/49:45 amONT - ITO
1 stop8h 19mAlaska Airlines
Tue 11/47:43 pmITO - ONT
2 stops13h 22mAlaska Airlines
Deal found 8/18$377
This Alaska Airlines deal was found by Cheapflights users on 8/18. 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 11/39:45 amONT - ITO
1 stop8h 19mAlaska Airlines
Tue 11/47:43 pmITO - ONT
2 stops13h 22mAlaska Airlines
Deal found 8/18$383
This Alaska Airlines deal was found by Cheapflights users on 8/17. 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 10/13:06 pmONT - ITO
2 stops18h 55mAlaska Airlines
Tue 10/76:55 pmITO - ONT
1 stop22h 42mAlaska Airlines
Deal found 8/17$384
This Alaska Airlines deal was found by Cheapflights users on 8/18. 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 10/299:45 amONT - ITO
1 stop10h 11mAlaska Airlines
Tue 11/47:45 amITO - ONT
1 stop7h 29mAlaska Airlines
Deal found 8/18$394
This Alaska Airlines deal was found by Cheapflights users on 8/18. 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 10/309:45 amONT - ITO
1 stop10h 11mAlaska Airlines
Fri 11/76:00 amITO - ONT
1 stop9h 14mAlaska Airlines
Deal found 8/18$413

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Hilo 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 August 20, 2025.
Use the filters below to find and compare flights from Ontario to Hilo that are best for you.

Fly from

Ontario

Fly to

Hilo

Route

Depart

Return

Price

OntarioHilo

ONT - ITO

ONTITO

Ontario

Tue 11/4

11:59 am-10:19 pm

2 stops12h 20m

Hilo Intl

Wed 11/5

6:00 am-5:14 pm

1 stop9h 14m

$356

OntarioHilo

ONT - ITO

ONTITO

Ontario

Sun 11/2

5:00 am-7:30 pm

2 stops16h 30m

Hilo Intl

Fri 11/7

6:00 am-5:14 pm

1 stop9h 14m

$362

OntarioHilo

ONT - ITO

ONTITO

Ontario

Sun 11/2

5:00 am-7:30 pm

2 stops16h 30m

Hilo Intl

Wed 11/5

7:45 am-5:14 pm

1 stop7h 29m

$362

OntarioHilo

ONT - ITO

ONTITO

Ontario

Tue 11/4

11:59 am-10:19 pm

2 stops12h 20m

Hilo Intl

Fri 11/7

6:00 am-5:14 pm

1 stop9h 14m

$362

OntarioHilo

ONT - ITO

ONTITO

Ontario

Wed 10/29

6:00 am-5:40 pm

2 stops14h 40m

Hilo Intl

Wed 11/5

6:00 am-5:14 pm

1 stop9h 14m

$362

OntarioHilo

ONT - ITO

ONTITO

Ontario

Wed 10/29

11:59 am-10:24 pm

2 stops13h 25m

Hilo Intl

Fri 11/7

6:00 am-5:14 pm

1 stop9h 14m

$362

OntarioHilo

ONT - ITO

ONTITO

Ontario

Sun 11/2

5:00 am-7:30 pm

2 stops16h 30m

Hilo Intl

Tue 11/4

6:43 pm-11:05 am

2 stops14h 22m

$372

OntarioHilo

ONT - ITO

ONTITO

Ontario

Wed 10/29

11:59 am-10:24 pm

2 stops13h 25m

Hilo Intl

Tue 11/4

7:43 pm-11:05 am

2 stops13h 22m

$372

OntarioHilo

ONT - ITO

ONTITO

Ontario

Mon 10/27

9:45 am-4:56 pm

1 stop10h 11m

$176

OntarioHilo

ONT - ITO

ONTITO

Ontario

Tue 9/23

11:39 am-10:17 pm

2 stops13h 38m

$186

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/19

Showing 1-10 of 17 results
1
2

Best time to book a flight from Ontario to Hilo

Have a flexible travel schedule? Discover the best time to fly to Hilo from Ontario 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 Ontario to Hilo

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

Currently, March is the cheapest month in which you can book a flight from Ontario to Hilo (average of $330). Flying from Ontario to Hilo in December is currently the most expensive (average of $726). 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.

Reviews of airlines servicing Hilo

Get insights into the airlines that provide service to Hilo. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Hilo. Reviews last updated August 20, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest, and Hawaiian Airlines from Ontario to Hilo. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.0

Overall

8.0

Crew

8.5

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.0

Overall

8.0

Crew

8.5

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,246 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.0

Overall

8.0

Crew

8.5

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.8
Good
2,670 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.0

Overall

8.0

Crew

8.5

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Hilo. 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 Ontario to Hilo?

    A quick flight from Ontario to Hilo can take about 12h 20m. Alaska Airlines provides one of the quickest options available for as low as $356. Ontario and Hilo are separated by a distance of 2491 mi.

  • What are the cheapest airlines flying from Ontario to Hilo round-trip?

    Hawaiian Airlines, at $374, was found to be the cheapest airline from Ontario to Hilo.Alternate airlines to your destination round-trip include Alaska Airlines and Southwest. Hawaiian Airlines is priced at 42% lower than the current average price of a flight leaving 3 months from now.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Ontario to Hilo 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 Ontario to Hilo?

    Currently, March is the cheapest month in which you can book a flight from Ontario to Hilo (average of $330). Flying from Ontario to Hilo in December is currently the most expensive (average of $726). 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 Ontario to Hilo

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Top 3 airlines flying from Ontario to Hilo

Discover the top 3 airlines that operate flights from Ontario to Hilo. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$374Average$566FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$392Average$658FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$501Average$626FlexibilityNo cancel feeOn-time63%

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