ONT

$144 Find Cheap Flights from The Big Island to Ontario

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Ontario departing on 2/24. 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

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Everything you should know

Cheapest round-trip
$327
Multiple Airlines
Thu 3/5Wed 3/11
KOA - ONT • 1 stop
Cheapest one-way
$144
Overall average: $138
Southwest
Tue 2/24
KOA - ONT • 1 stop
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We hope you love your trip to Ontario!
Flight Deals
Useful Info
Flight Deals

Cheap Flights from The Big Island to Ontario

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from The Big Island to Ontario 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 The Big Island to Ontario

Thu, Mar 5 - Wed, Mar 11
Multiple Airlines Logo
12:30 pm - 10:15 pm
KOA
-
ONT
7h 45m1 stop
Multiple Airlines Logo
8:45 am - 4:58 pm
ONT
-
KOA
11h 13m1 stop
$327Multiple Airlines
Mon, Feb 23 - Tue, Apr 7
Delta Logo
8:55 pm - 12:07 pm
KOA
-
ONT
13h 12m1 stop
Delta Logo
11:59 am - 6:38 pm
ONT
-
KOA
9h 39m1 stop
$336Delta
Mon, Feb 23 - Thu, Apr 9
Delta Logo
8:55 pm - 12:07 pm
KOA
-
ONT
13h 12m1 stop
Delta Logo
6:00 am - 6:38 pm
ONT
-
KOA
15h 38m2 stops
$342Delta
Wed, Feb 4 - Sun, Feb 8
Multiple Airlines Logo
6:44 pm - 10:59 am
ITO
-
ONT
14h 15m2 stops
Multiple Airlines Logo
6:00 am - 8:29 pm
ONT
-
ITO
16h 29m2 stops
$343Multiple Airlines
Tue, Mar 3 - Fri, Mar 6
Multiple Airlines Logo
9:05 pm - 11:08 am
KOA
-
ONT
12h 03m1 stop
Multiple Airlines Logo
8:41 am - 7:17 pm
ONT
-
KOA
12h 36m1 stop
$351Multiple Airlines
Sun, Feb 22 - Wed, Apr 8
Delta Logo
8:55 pm - 12:07 pm
KOA
-
ONT
13h 12m1 stop
Delta Logo
11:59 am - 6:38 pm
ONT
-
KOA
9h 39m1 stop
$366Delta
Wed, Feb 25 - Tue, Apr 7
Delta Logo
9:55 pm - 1:54 pm
KOA
-
ONT
13h 59m1 stop
Delta Logo
6:00 am - 2:53 pm
ONT
-
KOA
11h 53m1 stop
$369Delta
Sun, Feb 22 - Wed, Apr 8
Delta Logo
8:55 pm - 12:07 pm
KOA
-
ONT
13h 12m1 stop
Delta Logo
6:00 am - 6:38 pm
ONT
-
KOA
15h 38m2 stops
$372Delta
Wed, Feb 25 - Wed, Apr 8
Delta Logo
9:55 pm - 1:54 pm
KOA
-
ONT
13h 59m1 stop
Delta Logo
6:00 am - 6:38 pm
ONT
-
KOA
15h 38m2 stops
$375Delta
Wed, Apr 22 - Fri, May 1
Alaska Airlines Logo
8:00 am - 10:32 pm
KOA
-
ONT
11h 32m1 stop
Alaska Airlines Logo
10:39 am - 7:52 pm
ONT
-
KOA
12h 13m1 stop
$395Alaska Airlines
Useful Info

Good to know

Low seasonJanuary
Cheapest flight$144
Best time to beat the crowds with an average 9% drop in price.
Most popular time to fly with an average 4% increase in price.
Flight from Kailua-Kona to Ontario

FAQs for booking flights from The Big Island to Ontario

  • How does KAYAK find such low prices on flights from The Big Island to Ontario?

    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 The Big Island to Ontario.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from The Big Island 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 The Big Island to Ontario?

    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 Ontario with an airline and back to The Big Island with another airline.

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

    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 Ontario from The Big Island 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 The Big Island to Ontario

 
Need help choosing which airline to fly with from The Big Island to Ontario? 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
SouthwestOverall score based on 4249 reviews
8.0Comfort
7.0Food
8.6Crew
7.5Entertainment
8.1Boarding
Airline reviews

The flight crew was extremely rude and especially not helpful when our flight was delayed.

2.0 MediocreMatthew, Jan 2026
DAL - SAN
Read more Southwest reviews

The flight crew was extremely rude and especially not helpful when our flight was delayed.

The boarding and seat assignment system no longer works for me, but I know it is being replaced. Otherwise, I am good with the overall experience.

The lead steward kept singing about "San Francisco" and hotel California---more annoying than humorous....needs work. Flight was smooth and on time.

Still a fan of open seating. Flight was on schedule and arrived on time. The 737 MAX is very comfortable.

San Diego airport is brand new, spacious, airy and very smooth checkin at SW baggage drop.

Ever since Southwest starting charging for bags, passengers don't want to pay to check their bags, so the gate agents have to beg people to check their roller bags now because there's "not enough space". This was a terrible business move by Southwest.

Delays delays delays. Late taking off, late landing, wait for a gate, etc.

Connecting flight is on time and boarding was a breeze!

Very smooth checking in our luggage with a super pleasant SW agent. I enjoyed a fun entertaining movie.

First time traveling on Southwest since bag fees were implemented. Usual good service. Just more expensive now.

Everything you need to know for your flight to Ontario

Information on the airport you'll fly into in Ontario

Ontario (ONT)