ONT - ITO

$207 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 9/10. 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

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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Flights 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

Tue, Nov 11 - Tue, Nov 18
Hawaiian Airlines Logo
9:45 am - 4:04 pmONT-ITO
8h 19m1 stop
Hawaiian Airlines Logo
6:10 am - 5:14 pmITO-ONT
9h 04m1 stop
$414Hawaiian Airlines
Find Deal
Mon, Sep 15 - Thu, Oct 2
Alaska Airlines Logo
6:00 am - 5:37 pmONT-ITO
14h 37m2 stops
Alaska Airlines Logo
9:42 am - 9:10 pmITO-ONT
8h 28m1 stop
$424Alaska Airlines
Find Deal
Mon, Sep 15 - Tue, Sep 16
Hawaiian Airlines Logo
10:09 am - 4:57 pmONT-ITO
9h 48m1 stop
Hawaiian Airlines Logo
7:49 am - 9:10 pmITO-ONT
10h 21m1 stop
$437Hawaiian Airlines
Find Deal
Mon, Sep 29 - Fri, Oct 17
Hawaiian Airlines Logo
10:09 am - 3:59 pmONT-ITO
8h 50m1 stop
Hawaiian Airlines Logo
7:45 am - 8:37 pmITO-ONT
9h 52m1 stop
$448Hawaiian Airlines
Find Deal
Fri, Oct 31 - Tue, Nov 4
Alaska Airlines Logo
6:00 am - 5:38 pmONT-ITO
14h 38m2 stops
Alaska Airlines Logo
6:10 am - 5:14 pmITO-ONT
9h 04m1 stop
$478Alaska Airlines
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Mon, Aug 25 - Mon, Sep 15
United Airlines Logo
6:00 am - 6:28 pmONT-ITO
15h 28m2 stops
United Airlines Logo
8:36 am - 5:37 pmITO-ONT
30h 01m2 stops
$583United Airlines
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Mon, Sep 15 - Thu, Oct 2
United Airlines Logo
6:00 am - 5:37 pmONT-ITO
14h 37m2 stops
United Airlines Logo
8:36 am - 5:40 pmITO-ONT
30h 04m2 stops
$666United Airlines
Find Deal
Tue, Jun 24 - Fri, Jun 27
Southwest Logo
8:30 am - 6:10 pmONT-ITO
12h 40m2 stops
Southwest Logo
6:00 am - 7:05 pmITO-ONT
10h 05m2 stops
$769Southwest
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Thu, Jul 3 - Tue, Jul 8
American Airlines Logo
12:59 am - 4:54 pmONT-ITO
18h 55m2 stops
American Airlines Logo
6:10 pm - 4:14 pmITO-ONT
19h 04m2 stops
$1,514American Airlines
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Tue, Jul 29 - Sat, Aug 2
American Airlines Logo
6:15 am - 8:29 pmONT-ITO
17h 14m3 stops
American Airlines Logo
8:00 pm - 12:00 pmITO-ONT
13h 00m2 stops
$1,532American Airlines
Find Deal
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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 May, where tickets cost $504 (return) on average. On the other hand, the most expensive months are June and December, where the average cost of round-trip tickets is $868 and $786 respectively.

Good to know

Low seasonApril
High seasonSeptember
Cheapest flight$207
Best time to beat the crowds but there is an average 6% increase in price.
Most popular time to fly and prices are also 15% 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 $207 for a one-way ticket and $414 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, Star Alliance, and SkyTeam are the airline alliances operating flights between Ontario and Hilo, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from Ontario to Hilo, Alaska Airlines or Southwest?

    The two airlines most popular with KAYAK users for flights from Ontario to Hilo are Alaska Airlines and Southwest. With an average price for the route of $658 and an overall rating of 8.0, Alaska Airlines is the most popular choice. Southwest is also a great choice for the route, with an average price of $593 and an overall rating of 8.0.

  • 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.

Top 3 airlines serving 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 10000 reviews
7.1Food
8.1Boarding
7.8Comfort
7.1Entertainment
8.5Crew
Airline reviews

Terrible check in experience, and they ended up losing our bag.

2.0 MediocreEmilie, Jun 2025KOA - OGG
Read more Alaska Airlines reviews

Terrible check in experience, and they ended up losing our bag.

they didn't fix a plane and we were delayed travelling an extra 12 hours.

This flight was how a flight should be. The flight from Hawaii to Seattle was terrible

Our big luggage never made it to Boston. Very crucial to get it ASAP as heart medication is in there.

Wish I got An email stating that I needed to check in at hawaiian even if I made my ticket thru alaska. I had to walk to terminal A from Terminal B.

Long delay before boarding. By the time I was informed of the delay I was already at the gate.

One of the worst check-in experiences ever. Apparently, we were overweight and had to completely repack. They tried to charge us an extra $35 per bag on top of the standard checked baggage fee we had already paid in advance. Surprisingly, we managed to fit everything into our carry-ons and stayed under their precious 50-pound limit. (By the way, 23 kg is actually 50.7 lbs, so we couldn’t even go slightly over 50 according to the very unfriendly agent.)

Tight legroom. The breakfast was provided, which was a plus, and okay the taste.

Awful. We got the last seats and they don't recline. We've been on this horrible journey since 6am and won't get to our destination almost a full day later. Oh and no food, either. Never again.

Self check in is not indicated well if you approach Terminal 1 from Terminal 2 Parking

It was a perfect flight in all aspects! Both legs!

Great flight, 47 passengers on a 180 seat plane. Stewardess was pleasant and cheerful.

I liked the crew member who gave flight instructions on "in case of a problem:. The seats are so small that only a young teenager could sit in middle seat.

Great flight staff. Ease of boarding. Overall, very uneventful and easy trip.

Employees were kind and funny, as always! Flight was late but no announcements were made for people with tight connections to help them transition quickly. No service due to turbulence.

I recently flew Southwest from San Jose to Honolulu. I was very impressed with the flight crew, especially the flight attendant in charge of the front of the plane. She came through the aisle at least five times for drinks and water, and two times for snacks. I have not seen such service since I flew first class. Also, for the first time, they gave us the correct baggage claim number, and the luggage came out quickly. I can't wait for Southwest to have assigned seating! I absolutely hate the Cattle Call boarding procedure and the mad dash to get seats and overhead bins. However, the boarding was efficient.

Much better than the.last. flight on SW on Thanksgiving day

We had a nice flight. Boarding was easy, our seats were comfortable and the on board service was pleasant.

Service was great, boarding and exiting went smoothly, and the flight was very pleasant.

Was as expected. Crowed planes. Too many carryons delaying takeoff. But the ride only took an hour and saved me a lot of time SFO is a not a great airport.

It was very pleasant. The staff and crew are very polite.

We moved from the international terminal to a new location. I think there are still some bugs to work out . We didn’t receive check in notification and had to scramble to find it but i think it will work out

Not so good. The takeoff was aborted after reaching 100 knots due to a problem with the front tires. I do commend the pilot for a quick decision and preventing a potential disaster. We returned to the gate to put fresh tires on the front. Our flight was delayed for over 3 hours. The rest of the flight was okay. We were reimbursed by Hawaiian Airlines for only $50. Not too generous

Arrived at the gate with no seats assigned. Was told by gate agent the flight was full and we would not be on it. I asked the gate agent how could I be sold tickets when the flight was full. She replied, “Thats just how they do it.” I was able to get seats once I arrived at the gate. The flight itself was great. I’ll never purchase tickets without seat assignments from kayak or anyone again. Shame on kayak or Hawaiian airlines or all of you.

The temperature on the plane was too cold and the food was not very good. Everything else was good.

The flight from HON to Hilo caused a few problems, but we were helped by the checking agent at Hawaiian Airlines with tech assistance. My wife & I are in our 70's and not QR code savvy. But we are learning.

Hawaiian airlines canceled my flight the night before my a due to weather. This is fine, I know this happens. In the email alerting me to the cancellation they said they would reach out to reschedule. I got this email at dinner time the night before the trip. I didn’t hear back so I called and was on hold for hours, I tried their texting questions option and never heard back. I tried to chat with a representative online, the website says you can chat and have questions answered but there is no link to a chat option anywhere on the site. After hours trying to get someone to communicate with me about the details of the cancellation and my rescheduling options I have up, got the flight refunded and booked a much more expensive last minute flight. Nonexistent customer service, I’ll never fly Hawaiian again.

Friendly & on Time .Need to make sure the Hana Hou magazine is in front of each seat

The leg room, complementary WiFi and food and drinks. Friendly staff

Most of the crew was wonderful but I had one bad experience with a crew member. When realizing my seat did not have an outlet compatible with my phone charger that I would need for transportation upon landing I asked an older, blonde heavily madeup member (I am describing her as I did not get her name) if there were chargers elsewhere I could use she said no, that not even the flight attendants had access to any. This however being my second flight of the day with Hawaiian airlines on a similar plane knew that chargers were available in extra comfort seating. I asked another passenger if I could use their plug and they agreed. She twice berated me for this and when I asked her to please stop talking to me about it she yelled that she was writing me up and ran down the aisle and did not return. I found this behavior disturbing. The other passenger was not bothered and this didn’t appear to be a safety hazard to anyone but it seemed to enrage her that used a plug that was not next to me.

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

Information on your arrival and departure airports

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