ONT - ITO

$247 Find Cheap Flights from Ontario to Hilo

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to Hilo departing on 1/8. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Hilo

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Hilo, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Hilo, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$494
Overall average: $561
Alaska Airlines
Mon 1/12Thu 1/15
ONT - ITO • 1 stop
Cheapest one-way
$247
Alaska Airlines
Thu 1/8
ONT - ITO • 1 stop
Top airlines
Alaska Airlines
Cheapest • from $494 (round-trip)
Alaska Airlines
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
February
Cheapest • 38% price drop
May
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Hilo!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Ontario to Hilo (ONT-ITO)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Hilo that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Ontario to Hilo

Mon, Jan 12 - Thu, Jan 15
Alaska Airlines Logo
8:13 am - 2:32 pmONT-ITO
8h 19m1 stop
Alaska Airlines Logo
12:09 pm - 10:28 pmITO-ONT
8h 19m1 stop
$494Alaska Airlines
Find Deal
Fri, Jan 9 - Mon, Jan 12
Hawaiian Airlines Logo
8:13 am - 7:04 pmONT-ITO
12h 51m1 stop
Hawaiian Airlines Logo
11:11 am - 10:28 pmITO-ONT
9h 17m1 stop
$498Hawaiian Airlines
Find Deal
Fri, Feb 20 - Tue, Feb 24
Alaska Airlines Logo
7:00 am - 7:05 amONT-ITO
26h 05m2 stops
Alaska Airlines Logo
8:30 pm - 11:52 pmITO-ONT
25h 22m2 stops
$505Alaska Airlines
Find Deal
Fri, Jan 9 - Mon, Jan 12
Alaska Airlines Logo
11:53 am - 10:34 pmONT-ITO
12h 41m2 stops
Alaska Airlines Logo
6:44 pm - 3:08 pmITO-ONT
18h 24m2 stops
$523Alaska Airlines
Find Deal
Thu, May 14 - Sat, May 23
Alaska Airlines Logo
8:00 am - 12:56 pmONT-ITO
7h 56m1 stop
Alaska Airlines Logo
10:44 am - 9:27 pmITO-ONT
7h 43m1 stop
$524Alaska Airlines
Find Deal
Fri, Jan 9 - Mon, Jan 12
Alaska Airlines Logo
11:53 am - 10:34 pmONT-ITO
12h 41m2 stops
Alaska Airlines Logo
11:11 am - 10:28 pmITO-ONT
9h 17m1 stop
$534Alaska Airlines
Find Deal
Thu, Apr 2 - Mon, Apr 6
Alaska Airlines Logo
9:50 am - 5:01 pmONT-ITO
10h 11m1 stop
Alaska Airlines Logo
9:46 am - 9:55 pmITO-ONT
9h 09m1 stop
$539Alaska Airlines
Find Deal
Fri, Jan 9 - Mon, Jan 12
Alaska Airlines Logo
11:53 am - 10:34 pmONT-ITO
12h 41m2 stops
Alaska Airlines Logo
6:44 pm - 5:03 pmITO-ONT
20h 19m2 stops
$551Alaska Airlines
Find Deal
Wed, Jan 14 - Wed, Jan 14
Alaska Airlines Logo
8:13 am - 5:29 pmONT-ITO
11h 16m1 stop
Alaska Airlines Logo
7:44 pm - 10:28 pmITO-ONT
24h 44m1 stop
$552Alaska Airlines
Find Deal
Thu, Dec 25 - Tue, Jan 13
Alaska Airlines Logo
8:00 am - 3:55 pmONT-ITO
9h 55m1 stop
Alaska Airlines Logo
8:30 pm - 3:08 pmITO-ONT
16h 38m2 stops
$576Alaska Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Ontario to Hilo flights

Get data-powered insights and trends into flights from Ontario to Hilo to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Ontario to Hilo?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Ontario to Hilo, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Ontario to Hilo is February, where tickets cost $392 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is $868 and $796 respectively.

Good to know

Low seasonOctober
Cheapest flight$247
Best time to beat the crowds with an average 10% drop in price.
Most popular time to fly and prices are also 22% lower on average.
Flight from Ontario to Hilo

When to book flights from Ontario to Hilo

Are your dates flexible? Find out the best times to travel from Ontario to Hilo based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Ontario to Hilo

  • What is the cheapest flight from Ontario to Hilo?

    In the last 3 days, the lowest price for a flight from Ontario to Hilo was $247 for a one-way ticket and $494 for a round-trip.

  • Do I need a passport to fly between Ontario and Hilo?

    No

  • Which aircraft models fly most regularly from Ontario to Hilo?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Ontario to Hilo?

    oneworld is the only airline alliance operating flights between Ontario and Hilo.

  • How does KAYAK find such low prices on flights from Ontario to Hilo?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ontario to Hilo.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to Hilo?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Hilo from Ontario is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Ontario to Hilo?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Hilo with an airline and back to Ontario with another airline. Booking your flights between Ontario and ITO can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to Hilo?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Hilo from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Ontario to Hilo

 
See real verified KAYAK customer reviews for airlines flying from Ontario to Hilo. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Ontario to Hilo? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 11373 reviews
8.1Boarding
8.5Crew
7.1Food
7.8Comfort
7.0Entertainment
Airline reviews

Good. Flight was good. Crew was good. Wish they offered coffee refills. Wish I didn’t have to pay for headphones. Otherwise good for a commercial flight.

8.0 ExcellentAnonymous, Nov 2025PHX - HNL
Read more Alaska Airlines reviews

Good. Flight was good. Crew was good. Wish they offered coffee refills. Wish I didn’t have to pay for headphones. Otherwise good for a commercial flight.

Should have been forthcoming for reason for delay. Should have been able to check in for seat I'd like.

It was fine. It was a 30 minute flight so there was water or fruit juice and no food. Which was totally fine. The check in, gate and flight crew were all excellent.

I didn’t order food so can’t really say how it was. Overall, it was a great experience.

It was a pleasant experience. Considering we paid over $3000 for first class there really wasn’t anything special about first class. All the seats looked the same and everyone got the same great customer service. The only thing that was different between first class and couch was the drinks and the meal. We wouldn’t waste that much $ on first class on that plane again.

Once again, Hawaiian Airlines upon checking in for our return flight, told us that we hadn’t paid for our extra comfort seats. This had happened on our incoming flight as well. Hawaiian Airlines had changed our flight and put us in standard seats. I sent them confirmation emails and receipts showing that I had paid for extra comfort seats and they ignored me and refused to accept my proof of payment. I ended up having to pay for our extra comfort seats again. On our return flight, once again, we were told we hadn’t paid for our extra comfort seats, which we had. I argued until a supervisor was summoned and researched further in their system and found that we had paid for them. If I hadn’t insisted, we would’ve been forced to buy our seats again or be assigned a standard seat. This kind of Customer Service is totally unacceptable. I would never use Hawaiian Airlines again if I have a choice.

Flight was delayed 14 hours! We missed an entire day of our vacation and had to pay for hotel that we didn’t use

Glad they offer free meal, & I got a complimentary drink I’d like coffee,tea, or water offered 3/4 into trip

Could not check in online. Called airline twice, thinking Hawaiian Airlines could check me in during phone call. NO. In 2nd phone call, Customer Service explained that due to “transition period” of Hawaiian Airlines/Alaska Airlines merger, I could only check in at the airport. In addition, flight to Kahului was late at arrival gate; I made connection to Lihue but my bag did not, so I had to return to Lihue airport a couple hours after my arrival to retrieve the bag.

The boarding was confusing because the PA system at PDX was so quiet you couldn’t hear anything being said . The seats were uncomfortable. The food was pretty bad and I normally don’t mind airplane food. The flight attendants were not friendly. I learned upon check in that Hawaiian airlines had reassigned our seats of the second leg of the trip. I had confirmed and paid for special seats but they put me and my companion on standard seats in different rows. Hawaiian also did the same on my return flight after the flight times had changed. I happened to go online to check my reservation and saw the flight had changed. I gad received no notice. I saw that my confirmed seats that I had paid extra were gone. After much back and forth with the airlines they refused to correct their error. I showed them confirmation documents of my seat reservation and receipt of payment but they refused to correct the seat change or reimburse me. I had to pay $200 again to reserve the original seats. Shameful and manipulative. They basically held me hostage. If I wanted to be in that flight I had to pay up.

Everything you need to know for your flight from Ontario to Hilo

Information on your arrival and departure airports