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Hilo

$172+ 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 4/20. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — ITO
Feb 19 — Feb 261
Thu 2/19
Thu 2/26
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 January 20, 2026.

This Expedia deal was found by Cheapflights users on 1/20. 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.
Tue 5/1210:39 am
ONT
-
ITO
2 stops12h 49m
Multiple Airlines
Tue 5/195:30 pm
ITO
-
ONT
2 stops14h 37m
Multiple Airlines
Deal found 1/20$388
This Kiwi.com deal was found by Cheapflights users on 1/19. 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.
Tue 3/38:41 am
ONT
-
ITO
1 stop10h 48m
Multiple Airlines
Tue 3/106:44 pm
ITO
-
ONT
2 stops12h 20m
Multiple Airlines
Deal found 1/19$391
This Alaska Airlines deal was found by Cheapflights users on 1/18. 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 2/168:41 am
ONT
-
ITO
1 stop9h 19m
Multiple Airlines
Mon 2/234:39 pm
ITO
-
ONT
1 stop27h 36m
Multiple Airlines
Deal found 1/18$447
This Alaska Airlines deal was found by Cheapflights users on 1/20. 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 3/28:41 am
ONT
-
ITO
1 stop9h 19m
Multiple Airlines
Wed 3/412:31 pm
ITO
-
ONT
1 stop7h 44m
Multiple Airlines
Deal found 1/20$479
This Southwest deal was found by Cheapflights users on 1/18. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/178:00 am
ONT
-
ITO
1 stop9h 30m
Southwest
Mon 8/246:00 am
ITO
-
ONT
1 stop11h 10m
Southwest
Deal found 1/18$495
This Alaska Airlines deal was found by Cheapflights users on 1/20. 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 5/1412:01 pm
ONT
-
ITO
2 stops12h 55m
Multiple Airlines
Thu 5/2110:44 am
ITO
-
ONT
1 stop8h 23m
Multiple Airlines
Deal found 1/20$505
This Expedia deal was found by Cheapflights users on 1/19. 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.
Wed 5/2012:01 pm
ONT
-
ITO
2 stops12h 55m
Multiple Airlines
Mon 5/259:00 pm
ITO
-
ONT
1 stop22h 07m
Multiple Airlines
Deal found 1/19$511

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 January 20, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$388
(Expedia)

One-way from

$172
(Alaska Airlines)

Popular in

June

Cheapest in

February

Average price

$505
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. 15% potential increase in price ($116 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($25 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
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 January 20, 2026.
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

Thu 4/16

8:32 am-4:15 pm

1 stop10h 43m

Hilo Intl

Mon 4/20

12:21 pm-10:59 pm

1 stop7h 38m

$540

OntarioHilo

ONT - ITO

ONTITO

Ontario

Mon 2/16

8:41 am-4:00 pm

1 stop9h 19m

Hilo Intl

Mon 2/23

6:44 pm-10:04 am

2 stops13h 20m

$542

OntarioHilo

ONT - ITO

ONTITO

Ontario

Wed 3/4

8:41 am-2:25 pm

1 stop7h 44m

Hilo Intl

Wed 3/11

6:00 am-8:55 pm

1 stop11h 55m

$555

OntarioHilo

ONT - ITO

ONTITO

Ontario

Thu 2/5

8:13 am-4:13 pm

1 stop10h 00m

Hilo Intl

Mon 2/9

9:55 am-11:56 pm

2 stops12h 01m

$567

OntarioHilo

ONT - ITO

ONTITO

Ontario

Tue 1/27

8:13 am-7:59 pm

1 stop13h 46m

Hilo Intl

Wed 1/28

12:09 pm-10:28 pm

1 stop8h 19m

$586

OntarioHilo

ONT - ITO

ONTITO

Ontario

Sun 2/1

10:00 am-9:40 pm

2 stops13h 40m

Hilo Intl

Wed 2/4

6:00 am-7:30 pm

2 stops11h 30m

$595

OntarioHilo

ONT - ITO

ONTITO

Ontario

Mon 2/2

8:13 am-2:32 pm

1 stop8h 19m

Hilo Intl

Mon 2/2

6:44 pm-10:28 pm

1 stop25h 44m

$610

OntarioHilo

ONT - ITO

ONTITO

Ontario

Wed 2/25

8:41 am-4:00 pm

1 stop9h 19m

$207

OntarioHilo

ONT - ITO

ONTITO

Ontario

Tue 5/12

10:39 am-9:33 pm

2 stops13h 54m

$217

OntarioHilo

ONT - ITO

ONTITO

Ontario

Tue 2/10

8:13 am-2:32 pm

1 stop8h 19m

$240

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/19

Showing 1-10 of 19 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 January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Hilo flight deals on Cheapflights vs. FlightHub >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 Expedia the most. Expedia 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 January 20, 2026.
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
11,760 reviews

Food

7.1

Boarding

8.1

Entertainment

7.0

Comfort

7.8

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Alaska Airlines
8.0
Very good
11,760 reviews
Alaska Airlines
8.0
Very good
11,760 reviews

Food

7.1

Boarding

8.1

Entertainment

7.0

Comfort

7.8

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading

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.

  • 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 36% 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.

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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 January 20, 2026.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$392Average$620FlexibilityNo cancel feeOn-time75%

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