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Hilo

$207+ 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 9/10. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — ITO
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$494
(Alaska Airlines)

One-way from

$207
(Alaska Airlines)

Popular in

June

Cheapest in

May

Average price

$868
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. 9% potential increase in price ($63 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 June 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 June 12, 2025.

This Hawaiian Airlines deal was found by Cheapflights users on 6/10. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/119:45 amONT - ITO
1 stop8h 19mHawaiian Airlines
Tue 11/186:10 amITO - ONT
1 stop9h 04mHawaiian Airlines
Deal found 6/10$414
This Alaska Airlines deal was found by Cheapflights users on 6/11. 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.
Mon 9/156:00 amONT - ITO
2 stops14h 37mAlaska Airlines
Thu 10/29:42 amITO - ONT
1 stop8h 28mAlaska Airlines
Deal found 6/11$424
This United Airlines deal was found by Cheapflights users on 6/11. 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.
Mon 8/256:00 amONT - ITO
2 stops15h 28mUnited Airlines
Mon 9/158:36 amITO - ONT
2 stops30h 01mUnited Airlines
Deal found 6/11$583
This Southwest deal was found by Cheapflights users on 6/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/248:30 amONT - ITO
2 stops12h 40mSouthwest
Fri 6/276:00 amITO - ONT
2 stops10h 05mSouthwest
Deal found 6/10$769
This United Airlines deal was found by Cheapflights users on 6/11. 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 6/251:36 pmONT - ITO
2 stops11h 09mMultiple Airlines
Thu 8/76:00 amITO - ONT
3 stops13h 52mMultiple Airlines
Deal found 6/11$1,267
This American Airlines deal was found by Cheapflights users on 6/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/312:59 amONT - ITO
2 stops18h 55mAmerican Airlines
Tue 7/86:10 pmITO - ONT
2 stops19h 04mAmerican Airlines
Deal found 6/10$1,514

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 June 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

Wed 8/27

6:00 am-5:37 pm

2 stops14h 37m

Hilo Intl

Sun 8/31

7:49 am-9:10 pm

1 stop10h 21m

$494

OntarioHilo

ONT - ITO

ONTITO

Ontario

Mon 8/25

8:35 am-3:59 pm

1 stop10h 24m

Hilo Intl

Mon 9/15

9:42 am-9:10 pm

1 stop8h 28m

$539

OntarioHilo

ONT - ITO

ONTITO

Ontario

Mon 8/25

6:00 am-6:28 pm

2 stops15h 28m

Hilo Intl

Mon 9/15

8:36 am-5:37 pm

2 stops30h 01m

$583

OntarioHilo

ONT - ITO

ONTITO

Ontario

Tue 6/24

8:30 am-6:10 pm

2 stops12h 40m

Hilo Intl

Fri 6/27

6:00 am-7:05 pm

2 stops10h 05m

$769

OntarioHilo

ONT - ITO

ONTITO

Ontario

Wed 6/25

1:36 pm-9:45 pm

2 stops11h 09m

Hilo Intl

Thu 8/7

6:00 am-10:52 pm

3 stops13h 52m

$1,267

OntarioHilo

ONT - ITO

ONTITO

Ontario

Thu 7/3

12:59 am-4:54 pm

2 stops18h 55m

Hilo Intl

Tue 7/8

6:10 pm-4:14 pm

2 stops19h 04m

$1,514

OntarioHilo

ONT - ITO

ONTITO

Ontario

Wed 9/10

8:35 am-3:59 pm

1 stop10h 24m

$207

OntarioHilo

ONT - ITO

ONTITO

Ontario

Thu 8/28

1:42 pm-5:37 pm

2 stops30h 55m

$374

OntarioHilo

ONT - ITO

ONTITO

Ontario

Wed 6/18

6:25 am-9:45 pm

2 stops18h 20m

$527

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

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 July 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.

Rainfall in Hilo by month

Plan your trip to Hilo by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Hilo ranges from 7.4 - 15.5 inches per month. November is typically the wettest month, when rainfall can reach 15.5 in. June is typically the driest time to visit Hilo when rainfall is around 7.4 in.

Temperature in Hilo by month

Plan your trip to Hilo by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Hilo, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 71.6 F).

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 June 12, 2025.
Read through reviews of airlines operating flights from Ontario to Hilo, such as Alaska Airlines, Southwest and Delta. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

Food

7.1

Crew

8.5

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

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

Food

7.1

Crew

8.5

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
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

Food

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,946 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

Food

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,494 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

Food

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

Food

7.1

Crew

8.5

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.

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

    Alaska Airlines, at $494, was found to be the cheapest airline from Ontario to Hilo.Alternate airlines to your destination round-trip include Hawaiian Airlines and United Airlines. Alaska Airlines is priced at 23% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Ontario to Hilo one-way?

    For one-way options, check prices for Alaska Airlines. According to our data, you can fly for as low as $207. Users have also found prices from $247 and $374 on Hawaiian Airlines and United Airlines, respectively.

  • 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 July 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

See prices for flight routes from nearby airports that may be better suited for you.
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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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$374Average$566FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$494Average$658FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$501Average$593FlexibilityNo cancel feeOn-time63%

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