ONT - ITO

$213 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 8/23. 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
$439
Multiple Airlines
Mon 9/28Tue 9/29
ONT - ITO • 2 stops
Cheapest one-way
$213
Southwest
Sun 8/23
ONT - ITO • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Ontario and Hilo. You'll need at least 1 connection.
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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, Sep 28 - Tue, Sep 29
Multiple Airlines Logo
12:10 pm - 9:54 pm
ONT
-
ITO
12h 44m
2 stops
Multiple Airlines Logo
6:00 am - 11:24 pm
ITO
-
ONT
14h 24m
2 stops
$439Multiple Airlines
Mon, Sep 28 - Tue, Sep 29
Multiple Airlines Logo
12:10 pm - 9:54 pm
ONT
-
ITO
12h 44m
2 stops
Multiple Airlines Logo
9:26 am - 9:20 pm
ITO
-
ONT
8h 54m
1 stop
$468Multiple Airlines
Thu, Sep 3 - Tue, Sep 8
Multiple Airlines Logo
7:10 am - 3:13 pm
ONT
-
ITO
11h 03m
2 stops
Multiple Airlines Logo
4:44 pm - 9:51 am
ITO
-
ONT
14h 07m
2 stops
$490Multiple Airlines
Thu, Sep 3 - Tue, Sep 8
Southwest Logo
5:40 am - 12:35 pm
ONT
-
ITO
9h 55m
1 stop
Southwest Logo
6:00 am - 8:55 pm
ITO
-
ONT
11h 55m
2 stops
$498Southwest
Wed, Sep 9 - Wed, Sep 16
Multiple Airlines Logo
7:20 am - 1:14 pm
ONT
-
ITO
8h 54m
1 stop
Multiple Airlines Logo
9:26 am - 9:20 pm
ITO
-
ONT
8h 54m
1 stop
$503Multiple Airlines
Fri, May 1 - Mon, May 4
Multiple Airlines Logo
3:26 pm - 7:08 am
ONT
-
ITO
18h 42m
2 stops
Multiple Airlines Logo
3:02 pm - 9:10 pm
ITO
-
ONT
27h 08m
1 stop
$524Multiple Airlines
Mon, May 4 - Wed, May 13
Southwest Logo
10:30 am - 9:45 pm
ONT
-
ITO
14h 15m
2 stops
Southwest Logo
8:00 am - 10:15 pm
ITO
-
ONT
11h 15m
2 stops
$533Southwest
Tue, May 19 - Thu, May 28
Multiple Airlines Logo
9:40 am - 3:14 pm
ONT
-
ITO
8h 34m
1 stop
Multiple Airlines Logo
11:27 am - 10:17 pm
ITO
-
ONT
7h 50m
1 stop
$535Multiple Airlines
Fri, Sep 18 - Mon, Sep 21
Multiple Airlines Logo
7:20 am - 1:14 pm
ONT
-
ITO
8h 54m
1 stop
Multiple Airlines Logo
9:26 am - 9:20 pm
ITO
-
ONT
8h 54m
1 stop
$545Multiple Airlines
Mon, Sep 14 - Fri, Sep 18
Multiple Airlines Logo
7:20 am - 12:15 pm
ONT
-
ITO
7h 55m
1 stop
Multiple Airlines Logo
9:26 am - 9:20 pm
ITO
-
ONT
8h 54m
1 stop
$553Multiple Airlines
Booking Insights

Good to know

Cheapest flight$213
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 $213 for a one-way ticket and $439 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.
7.9
Alaska AirlinesOverall score based on 12253 reviews
8.1Boarding
8.5Crew
7.0Food
7.8Comfort
7.0Entertainment
Airline reviews

You can standby to get on earlier flight if the seat is open.

10.0 ExcellentYibin, Apr 2026
OGG - HNL
Read more Alaska Airlines reviews

You can standby to get on earlier flight if the seat is open.

My daughter has anxiety and became nauseous after boarding the plane and before take off. She went to the plane bathroom and ended up having to vomit, and your staff promptly removed us from the flight. We explained that it was due to my daughter’s anxiety, and that the condition would not continue in the air, but they removed us anyway. We have flown many many times before on many different airlines and my daughter’s anxiety has resulted in nausea and sickness before takeoff, and every airline has been accommodating and professional. This is was our first time flying with your airline, and also the first time we have ever been removed from a flight. This was the worst service we have ever experienced. This was a special surprise trip we gifted to my daughter for graduating college. I had also paid to upgrade the family to first class and sit all together which we had never done before and can’t afford on a normal basis. Our removal from the flight was not only extremely embarrassing, but devastating for my daughter. My daughter and I were removed from the plane and a call was made by your staff to medical personnel, a few questions were asked of my daughter, and then she was magically cleared. All of this took mere minutes. Why this could not have been performed while we were on the plane, or why this could not have been performed off the plane and then us allowed to reboard is beyond me. My wife and youngest daughter continued on the original flight alone and were very upset and crying due to the situation, yet the staff did nothing to console or assist them. My wife states that upon arrival in Portland and as they were exiting the plane, one of the stewardesses involved said “byyyyeeeee” to them sarcastically and laughed. Myself and my oldest daughter had to wait 4 hours for an alternate flight and were sat in regular seats because our first class seat purchase could not be honored. My wife wasn’t allowed to pick up our rental car and had to wait 4 hours with our luggage until I arrived. The delay prevented us from being able to carry out planned events and ruined the first day of our trip. Upon explaining all of this to your customer service, we received no sympathy, assistance, or compensation other than your staff submitting a request for a reimbursement of my and my daughters first class upgrade cost. When checking in early for our flight back home, the luggage cost for myself and my eldest daughter was no longer discounted as it was for my wife and youngest daughter. Customer service once again could not assist me over the phone and rectify what should have been a minor adjustment. Instead they stated I would have to wait until we physically checked bags in at the airport and then ask staff to adjust the luggage cost. With everything else we had experienced, I was not going to leave that to chance and instead paid full price for the luggage ahead of time. Or experience with Alaska Airlines was a complete disaster and I am baffled at the lack of empathy and assistance from your staff. I’m not sure of what else to say other than the fact that unless we are compensated by Alaska Airlines in some form to offset the horrendous service we received, we will be relaying our experience to family and friends and on social media, and doing all we can to urge everyone to avoid utilizing your services.

I got an email 3 hours before the flight letting me know it got canceled

Boarding was easy and quick. Staff was very friendly. Service of snacks and drinks by staff was outstanding.

It was ok! Not fond of sitting in middle seat. Tried to upgrade with my Atmos card but it was a new account and they weren’t able to look up my account details.

Not bad. Due to not buying a seat, on the way back, my seat was not assigned till 2 hrs before the flight left. Got me worried I wouldn’t have a seat.

There is no entertainment on the plane. The snack is minimal. The crew was nice and professional.

Our flight when we finally got rerouted to a different destination than we were going was fine. But 2 days was taken out of our vacation because our flit was cancelled. We understand mechanical problems and of course don’t want to be on a plane that has mechanical problems.Wish there had been another solution.

Kayak wouldn’t refund me for a flight I was trying to cancel through Kayak. Alaska airlines said I had to cancel through Kayak. I called the customer service line and they couldn’t refund the flight that I booked through Kayak either. You stole my money. You will be hearing from my lawyer.

The bathroom trash container under the sink fell out and was like that long before my flight. The plane smelled of canned fish and floor was Deteriorating

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

Information on your arrival and departure airports