$170 Find Cheap Flights from Ontario to O'ahu - Compare and Save

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 O'ahu departing on 8/18. 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.
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1 adult, Economy, 0 bags

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Book Cheap Ontario to O'ahu Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to O'ahu 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 O'ahu

Tue, Aug 25 - Fri, Aug 28
Alaska Airlines Logo
12:00 pm - 7:26 pm
ONT
-
HNL
10h 26m
1 stop
Alaska Airlines Logo
1:33 pm - 10:10 pm
HNL
-
ONT
5h 37mnonstop
$428Alaska Airlines
Thu, Aug 20 - Wed, Aug 26
Alaska Airlines Logo
9:31 am - 12:30 pm
ONT
-
HNL
5h 59mnonstop
Alaska Airlines Logo
9:20 pm - 11:04 am
HNL
-
ONT
10h 44m
1 stop
$429Alaska Airlines
Sat, Nov 28 - Wed, Dec 2
Alaska Airlines Logo
9:00 am - 12:57 pm
ONT
-
HNL
5h 57mnonstop
Alaska Airlines Logo
1:55 pm - 9:28 pm
HNL
-
ONT
5h 33mnonstop
$430Alaska Airlines
Tue, Nov 17 - Wed, Nov 25
Delta Logo
6:00 am - 8:24 pm
ONT
-
HNL
16h 24m
2 stops
Delta Logo
10:45 pm - 4:12 pm
HNL
-
ONT
15h 27m
2 stops
$431Delta
Sun, Sep 6 - Sun, Sep 13
Southwest Logo
12:15 pm - 9:20 pm
ONT
-
HNL
12h 05m
2 stops
Southwest Logo
11:55 am - 8:10 pm
HNL
-
ONT
5h 15mnonstop
$432Southwest
Sat, Oct 17 - Sun, Oct 25
Multiple Airlines Logo
6:56 pm - 10:20 am
ONT
-
HNL
18h 24m
1 stop
Multiple Airlines Logo
10:10 pm - 1:21 pm
HNL
-
ONT
12h 11m
1 stop
$433Multiple Airlines
Sun, Nov 8 - Fri, Nov 13
Delta Logo
11:56 am - 8:48 pm
ONT
-
HNL
10h 52m
1 stop
Delta Logo
10:45 pm - 11:16 am
HNL
-
ONT
10h 31m
1 stop
$434Delta
Mon, Aug 10 - Thu, Aug 13
Multiple Airlines Logo
9:11 am - 12:09 pm
ONT
-
HNL
5h 58mnonstop
Multiple Airlines Logo
11:20 pm - 1:09 pm
HNL
-
ONT
10h 49m
1 stop
$435Multiple Airlines
Thu, Sep 10 - Tue, Sep 15
Multiple Airlines Logo
3:14 pm - 11:59 pm
ONT
-
HNL
11h 45m
1 stop
Multiple Airlines Logo
9:41 pm - 9:51 am
HNL
-
ONT
9h 10m
1 stop
$436Multiple Airlines
Sun, Oct 18 - Sat, Oct 24
Multiple Airlines Logo
11:13 am - 7:26 pm
ONT
-
HNL
11h 13m
1 stop
Multiple Airlines Logo
12:48 pm - 9:22 pm
HNL
-
ONT
5h 34mnonstop
$437Multiple Airlines
Booking Insights

KAYAK's insights & trends for Ontario to O'ahu flights

Get data-powered insights and trends into flights from Ontario to O'ahu to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest Ontario to O'ahu flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to O'ahu from Ontario found in the last 5 days was to Honolulu, at $350 round-trip. The most popular route is from Ontario (ONT) to Honolulu (HNL), and the cheapest round-trip airline ticket found on this route in the last 5 days was $350.

What is the cheapest time of day to fly to O'ahu?

The average price for all round-trip flights from Ontario to O'ahu depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to O'ahu is generally in the morning, when round-trip flights cost $514 on average. The most expensive time of day to fly to O'ahu is generally in the morning, which is peak travel time and where the average cost of a ticket is $514.

Can I save money by flying with a layover from Ontario to O'ahu?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $416, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from Ontario to O'ahu?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Ontario to O'ahu, 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 O'ahu is December, when tickets cost $154 (return) on average. On the other hand, the most expensive months are July and June, when the average cost of round-trip tickets is $403 and $380 respectively.

What’s the cheapest day of the week to fly from Ontario to O'ahu?

The average price of all round-trip flights from Ontario to O'ahu clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to O'ahu on a Wednesday, as we generally find the cheapest rates on that day for this route. On the other hand, Thursday is the most expensive day to fly from Ontario to O'ahu. For your return ticket, we recommend flying on a Tuesday and avoiding Sundays for the best deals.

How far in advance should I book a flight from Ontario to O'ahu?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Ontario to O'ahu, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Ontario to O'ahu, you should book around 6 weeks before departure, which saves you about 23% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

Good to know

Low seasonMay
Cheapest flight$170
Best time to beat the crowds but there is an average 2% increase in price.
Most popular time to fly and prices are also 13% lower on average.
Flight from Ontario to Honolulu

FAQs - booking O'ahu flights

  • How does KAYAK find such low prices on flights from Ontario to O'ahu?

    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 O'ahu.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Ontario to O'ahu 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 O'ahu?

    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 from Ontario to O'ahu with an airline and back with another airline.

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

    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 from Ontario to O'ahu up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to O'ahu

  • Looking for a cheap flight? 25% of our users found tickets from Ontario to the following destinations at these prices or less: Honolulu $262 one-way - $420 round-trip

Reviews of the top 5 airlines serving from Ontario to O'ahu

 
See real verified KAYAK customer reviews for airlines flying from Ontario to O'ahu. 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 O'ahu? 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 12612 reviews
8.1Boarding
7.8Comfort
8.5Crew
7.1Food
7.0Entertainment
Airline reviews

The first flight was fine, great crew, but the plane was delayed 45 minutes to go to Seattle because of they were missing a ramp. That would make sense if the plane was actually at the gate. Not if we’re still waiting for a plane. After we landed we waited 30-45 minutes on the tarmac just to get off the plane. Alaska made me miss my connecting flight, wasting my time, and my money. I should honestly be reimbursed, but hey, when does the airline ever actually take accountability? Never.

2.0 MediocreAnonymous, Jun 2026
ONT - SEA
Read more Alaska Airlines reviews

The first flight was fine, great crew, but the plane was delayed 45 minutes to go to Seattle because of they were missing a ramp. That would make sense if the plane was actually at the gate. Not if we’re still waiting for a plane. After we landed we waited 30-45 minutes on the tarmac just to get off the plane. Alaska made me miss my connecting flight, wasting my time, and my money. I should honestly be reimbursed, but hey, when does the airline ever actually take accountability? Never.

Wish there were more complimentary drinks available - only had water and apple juice. Also - no snacks were provided during the flight, but we were offered some items as we exited the plane.

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.

The first leg of the trip was excellent. Lovely flight attendants and comfortable plane. The second leg left a lot to be desired. The flight attendant was rude when I asked for a Diet Coke, the boarding required quite a long walk and the plane was crammed and uncomfortable.

You no longer give receipts for baggage at the counter. And it is next to impossible to get it on your webpage. Spent 20 min trying and gave up... I need receipt to submit for reimbursement and don't have time to waste on your poor webpage Disappointing .....

Flight was delayed, full flight and I had to change gates. Southwest flights are always late later in the day.

The crew was very kind and made going to Hawaii relaxing and fun to look forward to! Thank you Southwest for a pleasant flight!

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.

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

Unfortunately it was not a good experience. There was a rude stewardess.

Boarding was well explained and smooth. The flight was short, so there was no time for snacks. They did offer water or juice, though.

The flight was very short, 45 mins, therefore no snacks/drinks were provided; there should be a NA option for food and entertainment survey questions. Also, there were no charging ports onboard for cell phones. My experience was overall positive.

I liked receiving attention from aged and well experienced flight attendants. I disliked the non-gluten-free snack but I brought my own so I was OK.

Price was right. Add power to the seats, television, larger plane to accommodate a long flight to improve mental health and overall comfort for a 5 hour flight.

Fabulous if you have a portable wheelchair. They can store it in the galley and you can just walk out with it. Really nice and the flat seats are just incredible, very nice. iPads for movies, also pretty nice,

No charging outlets worked. Other than collecting trash attendants didn’t come around. No one could hear flight attendants announcements during the flight. Seat pads were horrible. Sitting on a board for 5 hours. What happened to Hawaiian airlines comfort, hospitality, and extras? Our pilots did an excellent job trying to minimize turbulence and incredible job in landing in windy conditions.

comfortable but the food is horrible. I have flown Hawaiian several times now and no matter what they say the food is its the same squashed bread with melted goop inside. Tastes fake and isnt what they represent, its quite nasty. What happend to real food? And there is NO entertainment!! so not sure why they are asking for a review on that.

I was very, very cold and a stranger loaned me her sweater next to me. I didn’t wanna buy a blanket just for a four hour trip when I did not need the pillow or the earphones. I don’t mind purchasing a blanket, but I only needed that not all of it accessories. Cold air pretty much blew the entire trip. Two people in front of me both bought the blanket packages. Maybe that’s the idea. The crew was exceptionally nice and passed through multiple times.. the restrooms were very clean and usually accessible.

3 hour wait on customer service after flight was cancelled. Was bumped to a flight where I wouldnt have gotten to my destination for another 2 days. Had to fully refund flight and book a new one the following morning. Paid twice the amount for the flight than I had originally booked. Very disappointed I was not offered any sort of discount or points for all of the frustration, in fact the airline profited twice as much off of me by cancelling my flight and and changing my entire trip.

What an amazing flight. I haven’t experienced this level of service in a flight in years. This will be the only way to fly to Hawaii for me in the future.

I could not believe that on a 5 hour plus flight we were not given a complimentary meal . That should be illegal. Or it would be nice to be informed beforehand that a complimentary meal would not be provided. The wording in the email I got about pre ordering food was phrased in a way that made the food seem like it would be free. Very misleading! Also during boarding we were informed there would be empty seats we could move to if we wanted, all we had to do was wait for an announcement, however an announcement was never made. Then when we tried to change seats ourselves we were singled out over the loud speaker and told we could not move without asking. Then the flight was about to take off , so we didn’t have time to ask . Then we were told we could not move to the exit row because you had to pay for those seats, but we were not told where we could move. Also no one was in the exit rows so , if something happened no one would be there to assist the passengers. Also people should be allowed to move there if the airline wasn’t able to sell them. One passenger asked if he could pay for the upgrade and the flight attendant said she did not have the capability to charge for the seat on her mobile device, so the airline ended up losing possible income anyways . So why not let people move there during flight if you have no way to charge them? Then the landing was bumpy and awful and many passengers complained out loud when we landed .

The seating was very cramped. The selection of movies was poor.

They did not let me check in . Said I was 4 mins late.

I noticed the flight attendants had a bit of attitude towards guests. Not sure why but they were a little moody. They tossed earphones at me and to pass to the person next to me. I think the same flight attendant kinda got upset at a man for putting his cup in the trash area on the cart (I think he was trying to help but perhaps placed it in a diff waste area). The flight attendant was not happy and snapped a little

Great staff. Clean plane, but we were delayed for more than an hour due to maintenance issues and had to board another plane.

Seat pitch is horrible especially on the 15 hour flight. Gate crew at SFO was Outstanding. The flight crew was also great.

I’m so sorry, I can’t remember her name, I believe it was Dimpti. She was stellar, also a mature Asian flight attendant, lots of flowers in her hair, just as amazing! But literally the crew was AWESOME . Only downside is there weren’t any charging outlets. Maybe I needed to ask a flight attendant , but it would’ve been nice to have one easily accessible.

Older aircraft, no meal, only food was for purchase. Not impressed United.

Stuck on tarmac for two hours plus a 5.5 hour flight. Rude flight attendant. And no meals, not even for purchase!

I learned that seating towards the end of plane that a line forms for the restroom and people use your chair as a hand railing, bumping your seat consistently. I was seated in the aisle. I think that next time if I am towards the back row I would want to sit in the middle or window seat.

Boarding seemed to be organized bedlam. For what ever reason, preboarding took longer than 20 minutes. Made the plane 20 minutes late taking off. Luckily we arrived on time. Flight crew seemed very friendly. Only slight turbulence.

The personnel were professional and friendly. The Boeing 737 Max 9 is too claustrophobic and was very warm at both airport gates, and still warm in the air.

Terrible! The plane was old and you are required to connect your own device to their Wi-Fi rather than have entertainment options in the back of the seat in front of you. The Wi-Fi went out during the flight and there was only one plug for the devices every two seats. Three out of five surrounding my family did not work. The seats and spaces under them were so small I could not fit my backpack, which I’ve always brought on flights and fit before no problem. The crew were unpleasant and patronizing.

Left 2 hours later for delayed I had to take care a kid with special need since people don’t want to move to accommodate the rest of the family. . It wasn’t bad but that made me upset that people can be that selfish.

Ontario airport boarding was very easy to park and access, is clean and TSA took 10 minutes total. Check-in was a breeze and cruise was very nice.

Good flight, seated and had a water within 5 minutes. Crew was hospitable.

Flight pulled out on time but sat on runway for 30 mins. It was extremely cold in the aircraft despite wearing a winter coat. Surprisingly they had a vegetarian meal but could have some better snack choices for a 8 hour flight.

For a 5 1/2 hour flite i considered the "business class" to be subpar. The seats were just ok, no amenities, really nothing more than a long domestic flight. Frankly disappointed.

The flight was on time and arrived early. The crew were friendly and helpful.

Almost a 6 hour flight and the only food option is a cheese plate… and chips. Also how is it there are no options for texting on American. I’ll be going back to delta and united.

The chair cushions may need an upgrade. I have been noticing they are so worn out, thin so you’d sit in a dip 😄. Other than that, all was an enjoyable trip. Thanks AA!

VERY disappointed at the agent checking in my luggage. I know that the weight limit is 23 kg, a little over 50 pounds (50.71 pounds). Yet the agent kept repeating "50 pounds". So I said, the limit is 23 kg, and she had the audacity to say 'no, it is 22 kg!" Imagine my surprise. Was she ignorant or was she poorly trained? Not sure. The boarding process was pretty good. The speakers were loud enough so I still could hear them despite inconsiderate passengers continuing to speak while the announcements were going on. During the flight, the teenage girl sitting behind me kept pressing her feet to the back of my chair. I turned around several times, yet she did not get the hint. I did not make a fuss since I sense I had a bad streak that night with AA, so I just did the best I can to lean forward and not let that bother me.

Crew were attentive and friendly. Flight was smooth and early! I enjoyed the less crowded plane. Thank you!

It was wonderful upgrading to first. Plane was so cold thou. Crew was great. Wish there was a food option in first for such a long flight. Doesnt matter the time of day. Chintzy.

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