ONT

$195 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 4/29. 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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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

Fri, May 1 - Tue, May 5
Delta Logo
8:50 pm - 1:39 pm
KOA
-
ONT
13h 49m
1 stop
Delta Logo
7:00 am - 7:03 pm
ONT
-
KOA
15h 03m
1 stop
$390Delta
Fri, May 1 - Tue, May 5
Delta Logo
8:50 pm - 1:39 pm
KOA
-
ONT
13h 49m
1 stop
Delta Logo
6:00 am - 7:03 pm
ONT
-
KOA
16h 03m
2 stops
$396Delta
Sat, May 2 - Tue, May 5
Delta Logo
8:50 pm - 11:13 am
KOA
-
ONT
11h 23m
1 stop
Delta Logo
11:53 am - 7:03 pm
ONT
-
KOA
10h 10m
1 stop
$408Delta
Thu, May 7 - Mon, May 11
Multiple Airlines Logo
6:00 am - 9:10 pm
KOA
-
ONT
12h 10m
1 stop
Multiple Airlines Logo
10:39 am - 7:52 pm
ONT
-
KOA
12h 13m
1 stop
$426Multiple Airlines
Wed, Aug 5 - Wed, Aug 12
Alaska Airlines Logo
9:19 pm - 11:14 am
KOA
-
ONT
10h 55m
1 stop
Alaska Airlines Logo
2:05 pm - 10:10 pm
ONT
-
KOA
11h 05m
1 stop
$434Alaska Airlines
Tue, May 12 - Thu, May 28
Delta Logo
8:50 pm - 12:35 pm
KOA
-
ONT
12h 45m
1 stop
Delta Logo
6:45 am - 5:37 pm
ONT
-
KOA
13h 52m
1 stop
$437Delta
Mon, May 4 - Mon, May 11
Southwest Logo
6:05 am - 9:20 pm
KOA
-
ONT
12h 15m
2 stops
Southwest Logo
7:00 am - 12:15 pm
ONT
-
KOA
8h 15m
1 stop
$444Southwest
Sun, May 10 - Thu, May 28
Delta Logo
8:50 pm - 11:12 am
KOA
-
ONT
11h 22m
1 stop
Delta Logo
6:45 am - 5:37 pm
ONT
-
KOA
13h 52m
1 stop
$445Delta
Thu, May 7 - Thu, May 14
Multiple Airlines Logo
10:36 am - 11:48 pm
KOA
-
ONT
10h 12m
1 stop
Multiple Airlines Logo
9:40 am - 6:17 pm
ONT
-
KOA
11h 37m
1 stop
$450Multiple Airlines
Mon, May 4 - Mon, May 11
Southwest Logo
6:00 am - 9:20 pm
ITO
-
ONT
12h 20m
2 stops
Southwest Logo
10:30 am - 9:45 pm
ONT
-
ITO
14h 15m
2 stops
$508Southwest
Useful Info

Good to know

Low seasonJanuary
Cheapest flight$195
Best time to beat the crowds with an average 2% drop in price.
Most popular time to fly and prices are also 3% lower on average.
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 4334 reviews
7.5Entertainment
7.0Food
8.6Crew
8.1Boarding
8.0Comfort
Airline reviews

The Air hostess were very rude on my flight from Houston to Austin . Their regular communication itself felt a they are shouting at people.

4.0 Okaysangeetha, Apr 2026
AUS - SJC
Read more Southwest reviews

The Air hostess were very rude on my flight from Houston to Austin . Their regular communication itself felt a they are shouting at people.

Boarding was easy. The seats are small and fairly uncomfortable

The problem with the seat assignments is that there were a lot of rows in the front that were empty but my row at the back was full. Just not so pleasant.

No food or entertainment, just a quick 40 minute flight. A little bumpy due to Santa Ana winds but pilot has no control over that. Good flight and landing!

Good but I prefer choose your own seat. With the new assigned seats they should board from the back I see no advantage to this new boarding. Just like every other airline

Mediocre. Boarding is now unpleasant. The employees, once friendly and nice, are now regularly speaking sternly to passengers, badgering them to do things right so they can take off on time and gate check bags because they don't have enough overhead bin space. The pretzel snack was crushed flat and broken into even smaller pieces, which happens frequently lately. Drink service was suspended before they reached my row.

The charges were ridiculous for an hour flight and the turbulence was very scary.

3 hour delay. Had to change plans and was still delayed.

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.

Everything you need to know for your flight to Ontario

Information on the airport you'll fly into in Ontario

Ontario (ONT)