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$146+ 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 2/17. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — HNL
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheap 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 December 18, 2025.

This Southwest deal was found by Cheapflights users on 12/17. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/178:55 pmONT - HNL
2 stops21h 30mSouthwest
Thu 12/259:25 pmHNL - ONT
1 stop12h 15mSouthwest
Deal found 12/17$523
This Delta deal was found by Cheapflights users on 12/17. 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.
Thu 12/186:00 amONT - HNL
2 stops16h 29mDelta
Sat 12/2710:50 amHNL - ONT
1 stop9h 38mDelta
Deal found 12/17$527
This Southwest deal was found by Cheapflights users on 12/17. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/185:35 amONT - HNL
1 stop10h 50mSouthwest
Mon 12/2212:00 pmHNL - ONT
1 stop7h 20mSouthwest
Deal found 12/17$556
This United Airlines deal was found by Cheapflights users on 12/17. 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.
Wed 12/171:43 pmONT - HNL
1 stop10h 47mUnited Airlines
Mon 12/2211:30 pmHNL - ONT
1 stop8h 31mUnited Airlines
Deal found 12/17$577
This Southwest deal was found by Cheapflights users on 12/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:30 amONT - HNL
1 stop9h 25mSouthwest
Wed 1/79:00 pmHNL - ONT
1 stop13h 25mSouthwest
Deal found 12/15$580
This Alaska Airlines deal was found by Cheapflights users on 12/16. 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 12/1712:13 pmONT - HNL
1 stop11h 56mMultiple Airlines
Wed 12/242:44 pmHNL - ONT
Nonstop5h 24mMultiple Airlines
Deal found 12/16$588
This Southwest deal was found by Cheapflights users on 12/17. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/288:15 amONT - HNL
1 stop10h 10mSouthwest
Fri 1/99:30 pmHNL - ONT
1 stop14h 50mSouthwest
Deal found 12/17$593
This Alaska Airlines deal was found by Cheapflights users on 12/16. 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 12/1712:13 pmONT - HNL
1 stop11h 56mMultiple Airlines
Sun 12/282:44 pmHNL - ONT
Nonstop5h 24mMultiple Airlines
Deal found 12/16$618
This Southwest deal was found by Cheapflights users on 12/17. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/235:10 amONT - HNL
2 stops10h 50mSouthwest
Mon 1/199:30 pmHNL - ONT
1 stop10h 35mSouthwest
Deal found 12/17$623

Find 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 December 18, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$318
(Alaska Airlines)

One-way from

$146
(Trip.com)

Popular in

June

Cheapest in

February

Average price

$497

Good round-trip deal

$350 or less

Good one-way deal

$249 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. 13% potential increase in price ($60 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 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 December 18, 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

Fri 1/30

8:13 am-12:29 pm

Nonstop6h 16m

Honolulu

Sun 2/8

2:54 pm-10:28 pm

Nonstop5h 34m

$318

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Thu 1/8

7:00 am-2:44 pm

1 stop9h 44m

Honolulu

Thu 1/15

2:54 pm-10:28 pm

Nonstop5h 34m

$318

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Mon 3/2

8:41 am-12:45 pm

Nonstop6h 04m

Honolulu

Mon 3/9

12:20 pm-8:55 pm

Nonstop5h 35m

$318

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Thu 2/5

6:00 am-9:28 pm

2 stops17h 28m

Honolulu

Mon 2/9

10:30 pm-1:56 pm

1 stop13h 26m

$322

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Wed 1/21

6:00 am-9:28 pm

2 stops17h 28m

Honolulu

Wed 1/28

10:30 pm-1:56 pm

1 stop13h 26m

$322

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Thu 1/8

7:00 am-2:44 pm

1 stop9h 44m

Honolulu

Fri 1/16

2:54 pm-10:28 pm

Nonstop5h 34m

$328

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Wed 1/21

11:53 am-10:08 pm

1 stop12h 15m

Honolulu

Sun 1/25

2:54 pm-10:28 pm

Nonstop5h 34m

$328

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Tue 1/27

1:53 pm-8:55 pm

1 stop9h 02m

Honolulu

Mon 2/2

8:00 am-5:43 pm

1 stop7h 43m

$330

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Sun 1/25

7:30 am-5:05 pm

1 stop11h 35m

Honolulu

Fri 1/30

10:30 pm-1:56 pm

1 stop13h 26m

$331

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Fri 2/6

6:00 am-3:56 pm

1 stop11h 56m

Honolulu

Mon 2/9

9:35 pm-4:15 pm

2 stops16h 40m

$332

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/15

Showing 1-10 of 21 results
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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, February is the cheapest month in which you can book a flight from Ontario to O'ahu (average of $146). Flying from Ontario to O'ahu in July is currently the most expensive (average of $267). 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 December 18, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 26% 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 December 13, 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.

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 December 18, 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
11,474 reviews

Entertainment

7.0

Crew

8.5

Overall

8.0

Boarding

8.1

Food

7.1

Comfort

7.8

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
Alaska Airlines
8.0
Very good
11,474 reviews
Alaska Airlines
8.0
Very good
11,474 reviews

Entertainment

7.0

Crew

8.5

Overall

8.0

Boarding

8.1

Food

7.1

Comfort

7.8

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
Southwest
7.9
Good
4,249 reviews
Alaska Airlines
8.0
Very good
11,474 reviews

Entertainment

7.0

Crew

8.5

Overall

8.0

Boarding

8.1

Food

7.1

Comfort

7.8

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
Hawaiian Airlines
7.8
Good
2,819 reviews
Alaska Airlines
8.0
Very good
11,474 reviews

Entertainment

7.0

Crew

8.5

Overall

8.0

Boarding

8.1

Food

7.1

Comfort

7.8

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
United Airlines
7.4
Good
9,092 reviews
Alaska Airlines
8.0
Very good
11,474 reviews

Entertainment

7.0

Crew

8.5

Overall

8.0

Boarding

8.1

Food

7.1

Comfort

7.8

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
American Airlines
7.2
Good
11,053 reviews
Alaska Airlines
8.0
Very good
11,474 reviews

Entertainment

7.0

Crew

8.5

Overall

8.0

Boarding

8.1

Food

7.1

Comfort

7.8

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.

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 39 times in the past calendar month.

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

    Alaska Airlines and Delta can get you from Ontario to O'ahu in just under 6h 16m. Your travel time can differ by up to 11h 12m. 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 airlines to fly from Ontario to O'ahu one-way?

    To fly one-way, consider booking your trip with American Airlines, which is currently one of the cheapest options available, starting at $125. Alaska Airlines flights start at $149 while deals on United Airlines start at $151 one-way.

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

    On average you can expect to pay $394 for a flight from Ontario to O'ahu. The cheapest flight overall is $231 while the most popular route, (Ontario - Honolulu) is currently priced at $298.

  • 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, February is the cheapest month in which you can book a flight from Ontario to O'ahu (average of $146). Flying from Ontario to O'ahu in July is currently the most expensive (average of $267). 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.

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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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$168Average$337FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$218Average$509FlexibilityNo cancel feeOn-time69%
Hawaiian AirlinesCheapest$285Average$483FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$317Average$501FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$357Average$635FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$397Average$584FlexibilityNo cancel feeOn-time63%

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