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Hilo

$161+ 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 1/13. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — ITO
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Cheap 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 December 12, 2025.

This Alaska Airlines deal was found by Cheapflights users on 12/10. 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 12/117:00 amONT - ITO
1 stop8h 01mMultiple Airlines
Thu 12/1812:43 pmITO - ONT
1 stop7h 25mMultiple Airlines
Deal found 12/10$588
This Southwest deal was found by Cheapflights users on 12/11. 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.
Fri 12/129:50 amONT - ITO
2 stops10h 20mSouthwest
Mon 12/156:00 amITO - ONT
2 stops11h 30mSouthwest
Deal found 12/11$614
This Kiwi.com deal was found by Cheapflights users on 12/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/127:00 amONT - ITO
1 stop10h 17mMultiple Airlines
Mon 12/1512:05 pmITO - ONT
1 stop7h 38mMultiple Airlines
Deal found 12/11$617
This Alaska Airlines deal was found by Cheapflights users on 12/10. 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 12/167:00 amONT - ITO
1 stop8h 01mMultiple Airlines
Tue 12/2312:43 pmITO - ONT
1 stop7h 25mMultiple Airlines
Deal found 12/10$839
This Alaska Airlines deal was found by Cheapflights users on 12/11. 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 12/238:00 amONT - ITO
1 stop8h 29mMultiple Airlines
Thu 12/2512:43 pmITO - ONT
1 stop7h 25mMultiple Airlines
Deal found 12/11$853
This Alaska Airlines deal was found by Cheapflights users on 12/11. 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 12/177:00 amONT - ITO
1 stop9h 32mMultiple Airlines
Thu 12/1812:43 pmITO - ONT
1 stop7h 25mMultiple Airlines
Deal found 12/11$870
This United Airlines deal was found by Cheapflights users on 12/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/116:00 amONT - ITO
2 stops13h 39mUnited Airlines
Thu 12/187:44 pmITO - ONT
2 stops12h 17mUnited Airlines
Deal found 12/10$888
This Expedia deal was found by Cheapflights users on 12/11. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/2612:48 pmONT - ITO
2 stops20h 18mMultiple Airlines
Tue 12/304:40 pmITO - ONT
2 stops17h 28mMultiple Airlines
Deal found 12/11$889
This United Airlines deal was found by Cheapflights users on 12/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/176:00 amONT - ITO
2 stops15h 05mUnited Airlines
Thu 12/187:44 pmITO - ONT
2 stops12h 17mUnited Airlines
Deal found 12/11$948
This United Airlines deal was found by Cheapflights users on 12/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/176:00 amONT - ITO
2 stops16h 00mUnited Airlines
Sat 12/204:40 pmITO - ONT
2 stops15h 21mUnited Airlines
Deal found 12/11$951
This Alaska Airlines deal was found by Cheapflights users on 12/11. 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 12/238:00 amONT - ITO
1 stop9h 55mMultiple Airlines
Sat 12/2710:56 amITO - ONT
1 stop9h 12mMultiple Airlines
Deal found 12/11$955

Find 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 December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$322
(Alaska Airlines)

One-way from

$161
(Alaska Airlines)

Popular in

December

Cheapest in

February

Average price

$871
Provider with most accurate pricing for Ontario-Hilo Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ontario-Hilo Intl flights.
Search Deals
From Ontario to Hilo Intl
Search Deals
One-way flight from Ontario to Hilo Intl
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($89 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($22 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 December 12, 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

Mon 1/26

8:13 am-4:13 pm

1 stop10h 00m

Hilo Intl

Tue 1/27

12:09 pm-10:28 pm

1 stop8h 19m

$322

OntarioHilo

ONT - ITO

ONTITO

Ontario

Mon 1/26

7:00 am-5:29 pm

2 stops12h 29m

Hilo Intl

Tue 1/27

12:09 pm-10:28 pm

1 stop8h 19m

$333

OntarioHilo

ONT - ITO

ONTITO

Ontario

Mon 4/13

9:50 am-5:01 pm

1 stop10h 11m

Hilo Intl

Tue 5/19

10:44 am-9:27 pm

1 stop7h 43m

$451

OntarioHilo

ONT - ITO

ONTITO

Ontario

Wed 4/1

9:50 am-5:01 pm

1 stop10h 11m

Hilo Intl

Wed 4/15

10:44 am-9:55 pm

1 stop8h 11m

$494

OntarioHilo

ONT - ITO

ONTITO

Ontario

Wed 1/14

8:13 am-4:13 pm

1 stop10h 00m

Hilo Intl

Mon 3/2

9:50 am-10:15 pm

1 stop10h 25m

$496

OntarioHilo

ONT - ITO

ONTITO

Ontario

Thu 1/22

8:13 am-4:13 pm

1 stop10h 00m

Hilo Intl

Sun 1/25

12:09 pm-10:28 pm

1 stop8h 19m

$524

OntarioHilo

ONT - ITO

ONTITO

Ontario

Thu 1/29

8:13 am-2:32 pm

1 stop8h 19m

Hilo Intl

Wed 2/4

12:09 pm-10:28 pm

1 stop8h 19m

$539

OntarioHilo

ONT - ITO

ONTITO

Ontario

Tue 1/13

8:13 am-2:32 pm

1 stop8h 19m

$161

OntarioHilo

ONT - ITO

ONTITO

Ontario

Mon 1/12

6:00 am-4:13 pm

2 stops12h 13m

$171

OntarioHilo

ONT - ITO

ONTITO

Ontario

Tue 1/6

8:00 am-3:14 pm

1 stop9h 14m

$249

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

Showing 1-10 of 14 results
1
2

Compare providers for flights from Ontario to Hilo

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 Ontario to Hilo in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
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 Ontario-Hilo flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Ontario-Hilo flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Ontario-Hilo flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Hilo flights, Cheapflights users trust eDreams the most. eDreams 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 Ontario-Hilo 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 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, May is the cheapest month in which you can book a flight from Ontario to Hilo (average of $149). Flying from Ontario to Hilo in June is currently the most expensive (average of $251). 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 December 12, 2025.
Read reviews from past customers who have flown Alaska 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
11,432 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.0

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
Alaska Airlines
8.0
Very good
11,432 reviews
Alaska Airlines
8.0
Very good
11,432 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.0

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.

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 10h. Alaska Airlines provides one of the quickest options available for as low as $322. Ontario and Hilo are separated by a distance of 2491 mi.

  • What is the cheapest airline to fly from Ontario to Hilo round-trip?

    Alaska Airlines, at $392, was found to be the cheapest airline from Ontario to Hilo.. Alaska Airlines is priced at 38% 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, May is the cheapest month in which you can book a flight from Ontario to Hilo (average of $149). Flying from Ontario to Hilo in June is currently the most expensive (average of $251). 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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Top airline flying from Ontario to Hilo

Discover the top airline 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 December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$392Average$620FlexibilityNo cancel feeOn-time75%

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