ONT - ITO

$243 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 4/28. 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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41,299,237 searches in the past 7 days on KAYAK

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Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$390
Multiple Airlines
Wed 4/29Mon 5/4
ONT - ITO • 2 stops
Cheapest one-way
$243
Multiple Airlines
Tue 4/28
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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We hope you love your trip to Hilo!
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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

Wed, Apr 29 - Mon, May 4
Multiple Airlines Logo
10:39 am - 7:08 am
ONT
-
ITO
23h 29m
2 stops
Multiple Airlines Logo
1:47 pm - 9:45 am
ITO
-
ONT
16h 58m
2 stops
$390Multiple Airlines
Wed, Apr 29 - Mon, May 4
Multiple Airlines Logo
10:39 am - 7:08 am
ONT
-
ITO
23h 29m
2 stops
Multiple Airlines Logo
1:47 pm - 9:45 am
ITO
-
ONT
16h 58m
2 stops
$406Multiple Airlines
Tue, Aug 18 - Mon, Aug 24
Multiple Airlines Logo
9:11 am - 3:13 pm
ONT
-
ITO
9h 02m
1 stop
Multiple Airlines Logo
10:44 am - 9:28 pm
ITO
-
ONT
7h 44m
1 stop
$463Multiple Airlines
Wed, Apr 29 - Mon, May 4
Multiple Airlines Logo
8:30 am - 4:14 pm
ONT
-
ITO
10h 44m
1 stop
Multiple Airlines Logo
1:47 pm - 9:45 am
ITO
-
ONT
16h 58m
2 stops
$466Multiple Airlines
Wed, Apr 29 - Mon, May 4
Multiple Airlines Logo
8:30 am - 2:31 pm
ONT
-
ITO
9h 01m
1 stop
Multiple Airlines Logo
1:47 pm - 9:45 am
ITO
-
ONT
16h 58m
2 stops
$474Multiple Airlines
Mon, Aug 17 - Thu, Aug 27
Multiple Airlines Logo
7:50 am - 12:56 pm
ONT
-
ITO
8h 06m
1 stop
Multiple Airlines Logo
10:44 am - 9:28 pm
ITO
-
ONT
7h 44m
1 stop
$483Multiple Airlines
Wed, Apr 29 - Mon, May 4
Multiple Airlines Logo
8:30 am - 4:14 pm
ONT
-
ITO
10h 44m
1 stop
Multiple Airlines Logo
8:53 am - 9:10 pm
ITO
-
ONT
9h 17m
1 stop
$493Multiple Airlines
Wed, Apr 22 - Wed, Apr 29
Multiple Airlines Logo
8:30 am - 2:31 pm
ONT
-
ITO
9h 01m
1 stop
Multiple Airlines Logo
10:56 am - 9:10 pm
ITO
-
ONT
7h 14m
1 stop
$495Multiple Airlines
Mon, Apr 13 - Thu, Apr 16
Southwest Logo
5:30 am - 2:30 pm
ONT
-
ITO
12h 00m
2 stops
Southwest Logo
8:00 am - 9:20 pm
ITO
-
ONT
10h 20m
2 stops
$510Southwest
Sun, Aug 9 - Sat, Aug 15
Multiple Airlines Logo
5:38 pm - 7:03 am
ONT
-
ITO
16h 25m
2 stops
Multiple Airlines Logo
6:00 am - 11:54 pm
ITO
-
ONT
14h 54m
2 stops
$513Multiple Airlines
Booking Insights

Good to know

Low seasonFebruary
Cheapest flight$243
Best time to beat the crowds with an average 37% drop in price.
Most popular time to fly with an average 40% increase in price.
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 $243 for a one-way ticket and $390 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 11950 reviews
8.5Crew
8.1Boarding
7.1Food
7.8Comfort
7.0Entertainment
Airline reviews

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.

2.0 MediocreIan, Feb 2026
ANC - HNL
Read more Alaska Airlines reviews

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

I behave had better flights this one was old and poor

See previous. It was the flight from Honolulu to Kapalua that was cancelled.

Short trip from Honolulu to Kauai. Not a major issue. Only concern was the drop off of the luggage for departure. Only one person handling all of the passengers. She was busting her butt.

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.

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

Information on your arrival and departure airports

Ontario (ONT)
Hilo (ITO)