HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
O'ahu

$148+ Cheap flights from Ontario (ONT) to O'ahu

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/1. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — HNL
Dec 6 — Dec 131
Sat 12/6
Sat 12/13
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Ontario to O'ahu with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Find flight deals from Ontario to O'ahu

Cheapest flights from Ontario to O'ahu
Explore the most affordable flight options available from Ontario to O'ahu. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 6, 2025.

This Alaska Airlines deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/47:00 amONT - HNL
Nonstop6h 13mAlaska Airlines
Sun 12/79:33 pmHNL - ONT
1 stop11h 46mAlaska Airlines
Deal found 11/4$390
This Kiwi.com deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/510:12 pmONT - HNL
1 stop14h 48mMultiple Airlines
Sun 12/148:08 amHNL - ONT
2 stops13h 23mMultiple Airlines
Deal found 11/5$391
This Delta deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/296:00 amONT - HNL
2 stops16h 15mDelta
Sat 12/610:50 amHNL - ONT
1 stop9h 05mDelta
Deal found 11/4$392
This United Airlines deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/271:40 pmONT - HNL
1 stop10h 47mUnited Airlines
Thu 12/48:00 amHNL - ONT
1 stop7h 37mUnited Airlines
Deal found 11/5$395
This Cheapflightsfares deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/27:00 amONT - HNL
Nonstop6h 13mAlaska Airlines
Fri 12/511:59 pmHNL - ONT
1 stop9h 20mAlaska Airlines
Deal found 11/4$396
This Alaska Airlines deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/412:13 pmONT - HNL
1 stop11h 56mAlaska Airlines
Tue 12/1611:59 pmHNL - ONT
1 stop9h 20mAlaska Airlines
Deal found 11/5$397
This Cheapflightsfares deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/157:00 amONT - HNL
Nonstop6h 13mAlaska Airlines
Mon 12/222:44 pmHNL - ONT
Nonstop5h 24mAlaska Airlines
Deal found 11/6$398
This Cheapflightsfares deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1811:59 amONT - HNL
1 stop10h 05mAlaska Airlines
Thu 12/182:44 pmHNL - ONT
Nonstop5h 24mAlaska Airlines
Deal found 11/4$399
This Alaska Airlines deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/37:00 amONT - HNL
Nonstop6h 13mAlaska Airlines
Mon 12/89:33 pmHNL - ONT
1 stop11h 46mAlaska Airlines
Deal found 11/4$400
This Delta deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/36:00 amONT - HNL
2 stops16h 29mDelta
Wed 12/109:33 pmHNL - ONT
2 stops16h 36mDelta
Deal found 11/4$401
This Alaska Airlines deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/167:00 amONT - HNL
Nonstop6h 13mAlaska Airlines
Tue 12/232:44 pmHNL - ONT
Nonstop5h 24mAlaska Airlines
Deal found 11/4$402
This lastminute.com deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/129:47 amONT - HNL
Nonstop6h 03mHawaiian Airlines
Fri 12/512:49 pmHNL - ONT
Nonstop5h 34mHawaiian Airlines
Deal found 11/5$403

Cheap flight deals from Ontario to O'ahu

Keep the following information in mind while searching for Ontario to O'ahu flight deals. Data was last updated November 6, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$388
(Delta)

One-way from

$148
(Trip.com)

Popular in

June

Cheapest in

February

Average price

$366

Good round-trip deal

$444 or less

Good one-way deal

$239 or less
Provider with most accurate pricing for Los Angeles-Honolulu flight deals.
Search Deals
Provider most trusted by Cheapflights users for Los Angeles-Honolulu flights.
Search Deals
From Ontario to O'ahu
Search Deals
One-way flight from Ontario to O'ahu
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($69 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals
Price to beat on a round-trip flight from Ontario to O'ahu.
Search Deals
Price to beat on a one-way flight from Ontario to O'ahu.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to O'ahu that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 6, 2025.
Use the filters below to find and compare flights from Ontario to O'ahu that are best for you.

Fly from

Ontario

Fly to

O'ahu

Route

Depart

Return

Price

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Wed 12/3

6:00 am-8:29 pm

2 stops16h 29m

Honolulu

Wed 12/10

9:33 pm-4:09 pm

2 stops16h 36m

$401

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Thu 11/27

1:40 pm-10:27 pm

1 stop10h 47m

Honolulu

Thu 12/4

8:00 am-5:37 pm

1 stop7h 37m

$417

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Sat 11/29

7:50 am-11:58 am

Nonstop6h 08m

Honolulu

Wed 12/3

9:33 pm-11:19 am

1 stop11h 46m

$430

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Wed 1/7

7:30 am-6:29 pm

1 stop12h 59m

Honolulu

Sun 1/11

9:35 pm-4:13 pm

2 stops16h 38m

$435

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Thu 12/11

6:00 am-9:48 pm

2 stops17h 48m

Honolulu

Sun 12/14

11:15 pm-12:34 pm

1 stop11h 19m

$435

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Wed 11/12

11:59 am-8:04 pm

1 stop10h 05m

Honolulu

Sat 11/15

9:40 am-5:14 pm

Nonstop5h 34m

$478

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Tue 11/18

11:59 am-8:04 pm

1 stop10h 05m

Honolulu

Sun 11/23

12:58 pm-8:31 pm

Nonstop5h 33m

$478

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Mon 11/17

6:00 am-5:01 pm

1 stop13h 01m

Honolulu

Fri 11/21

12:58 pm-8:31 pm

Nonstop5h 33m

$478

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Mon 12/8

7:00 am-11:13 am

Nonstop6h 13m

Honolulu

Fri 12/12

9:33 pm-11:19 am

1 stop11h 46m

$487

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Thu 12/25

8:00 am-12:19 pm

Nonstop6h 19m

Honolulu

Thu 1/8

9:41 pm-10:59 am

1 stop11h 18m

$488

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/4

Showing 1-10 of 21 results
1
2
3

Best time to book a flight from Ontario to O'ahu

Have a flexible travel schedule? Discover the best time to fly to O'ahu from Ontario with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Ontario to O'ahu

What is the cheapest month to book a flight from Ontario to O'ahu?

Currently, January is the cheapest month in which you can book a flight from Ontario to O'ahu (average of $132). Flying from Ontario to O'ahu in July is currently the most expensive (average of $266). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ONT to FUW?

Find hourly flight availability from Ontario to O'ahu. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 6, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 25% on flights from Ontario to O'ahu by exploring options for tickets in the afternoon.

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

Use this chart to determine the cheapest time to fly round-trip from Ontario to O'ahu. Price data was last updated on November 2, 2025.

Travelers seeking maximum savings on their Ontario to O'ahu flight should consider departing on Sunday evenings when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Ontario to O'ahu

Explore weekly flight availability from Ontario to O'ahu. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated November 6, 2025.

The most flights from ONT to zzFUW are scheduled on a Monday (2 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (2 on average).

Reviews of airlines servicing O'ahu

Get insights into the airlines that provide service to O'ahu. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to O'ahu. Reviews last updated November 6, 2025.
See what other customers who have flown with Alaska Airlines, Southwest, and Hawaiian Airlines from Ontario to O'ahu have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,246 reviews

Food

7.1

Comfort

7.8

Boarding

8.1

Overall

8.0

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Alaska Airlines
8.0
Very good
11,246 reviews
Alaska Airlines
8.0
Very good
11,246 reviews

Food

7.1

Comfort

7.8

Boarding

8.1

Overall

8.0

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Southwest
8.0
Very good
4,241 reviews
Alaska Airlines
8.0
Very good
11,246 reviews

Food

7.1

Comfort

7.8

Boarding

8.1

Overall

8.0

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Hawaiian Airlines
7.8
Good
2,804 reviews
Alaska Airlines
8.0
Very good
11,246 reviews

Food

7.1

Comfort

7.8

Boarding

8.1

Overall

8.0

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
United Airlines
7.4
Good
9,007 reviews
Alaska Airlines
8.0
Very good
11,246 reviews

Food

7.1

Comfort

7.8

Boarding

8.1

Overall

8.0

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
American Airlines
7.2
Good
11,040 reviews
Alaska Airlines
8.0
Very good
11,246 reviews

Food

7.1

Comfort

7.8

Boarding

8.1

Overall

8.0

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.

Related info for your journey

Find useful and relevant information for your journey from Ontario to O'ahu. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Ontario to O'ahu?

    If you book a flight to O'ahu from Ontario, you will be flying from Ontario, which is the city’s only airport. Ontario (ONT) is located 3.1 mi from the center of Ontario.

  • How popular is this Ontario to O'ahu flight route?

    Flights from Ontario to O'ahu have been viewed 32 times in the past calendar month.

  • How long is the flight from Ontario to O'ahu?

    Delta, United Airlines, and Alaska Airlines can get you from Ontario to O'ahu in just under 6h 08m. Your travel time can differ by up to 10h 21m. Airlines will cover a distance of 2598 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest flights from Ontario to O'ahu?

    On average you can expect to pay $417 for a flight from Ontario to O'ahu. The cheapest flight overall is $193 while the most popular route, (Ontario - Honolulu) is currently priced at $282.

  • Can I find deals for flights from Ontario to O'ahu that include hotel bookings?

    Yes. In addition to deals on Ontario to O'ahu flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to O'ahu?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to O'ahu.

  • Can I find deals for business class flights from Ontario to O'ahu?

    Yes. Cheapflights offers flight deals from Ontario to O'ahu by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Ontario to O'ahu?

    Currently, January is the cheapest month in which you can book a flight from Ontario to O'ahu (average of $132). Flying from Ontario to O'ahu in July is currently the most expensive (average of $266). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ontario to O'ahu

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Honolulu flights
San Francisco to Honolulu flights
Los Angeles to Kahului flights
San Francisco to Kahului flights
Ontario to Honolulu flights
Los Angeles to Lihue flights
San Diego to Honolulu flights
Los Angeles to Kailua-Kona flights
San Francisco to Lihue flights
San Francisco to Kailua-Kona flights
San Jose to Honolulu flights
Oakland to Honolulu flights
Las Vegas to Honolulu flights
Long Beach to Honolulu flights
Sacramento to Honolulu flights
Oakland to Kahului flights
San Diego to Kahului flights
San Jose to Kahului flights
Ontario to Kahului flights
Sacramento to Kahului flights
San Diego to Lihue flights
Burbank to Honolulu flights
Sacramento to Kailua-Kona flights
Santa Ana to Honolulu flights
Oakland to Lihue flights
San Diego to Kailua-Kona flights
Las Vegas to Kahului flights
Oakland to Kailua-Kona flights
San Jose to Kailua-Kona flights
Sacramento to Lihue flights
San Jose to Lihue flights
Ontario to Lihue flights
Santa Ana to Kahului flights
Ontario to Kailua-Kona flights
Las Vegas to Lihue flights
Long Beach to Kahului flights
San Francisco to Hilo flights
Las Vegas to Kailua-Kona flights
Fresno to Honolulu flights
Los Angeles to Hilo flights
Burbank to Kahului flights
Los Angeles to Hoolehua flights
Long Beach to Lihue flights
San Jose to Hilo flights
Santa Ana to Lihue flights
Oakland to Hilo flights
Reno to Honolulu flights
Reno to Lihue flights
Reno to Kahului flights
Santa Ana to Kailua-Kona flights

Top 6 airlines flying from Ontario to O'ahu

Discover the top 6 airlines that operate flights from Ontario to O'ahu. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 6, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$158Average$337FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$239Average$509FlexibilityNo cancel feeOn-time69%
Hawaiian AirlinesCheapest$276Average$458FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$318Average$504FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$357Average$635FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$367Average$585FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.