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$97+ 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 2/4. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — HNL
Jan 3 — Jan 101
Sat 1/3
Sat 1/10
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 4, 2025.

This Southwest deal was found by Cheapflights users on 12/3. 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
Mon 2/29:30 pmHNL - ONT
2 stops9h 50mSouthwest
Deal found 12/3$331
This Alaska Airlines deal was found by Cheapflights users on 12/1. 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.
Mon 12/87:00 amONT - HNL
Nonstop6h 13mAlaska Airlines
Mon 12/222:44 pmHNL - ONT
Nonstop5h 24mAlaska Airlines
Deal found 12/1$438
This Alaska Airlines deal was found by Cheapflights users on 12/1. 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 12/912:13 pmONT - HNL
1 stop11h 56mAlaska Airlines
Mon 12/222:44 pmHNL - ONT
Nonstop5h 24mAlaska Airlines
Deal found 12/1$448
This United Airlines deal was found by Cheapflights users on 12/3. 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.
Sun 12/71:50 pmONT - HNL
1 stop10h 40mUnited Airlines
Sun 1/1810:50 pmHNL - ONT
2 stops10h 28mUnited Airlines
Deal found 12/3$452
This Agoda.com deal was found by Cheapflights users on 12/2. 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 Agoda.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/268:00 amONT - HNL
Nonstop6h 19mHawaiian Airlines
Wed 12/312:44 pmHNL - ONT
Nonstop5h 24mHawaiian Airlines
Deal found 12/2$460
This Alaska Airlines deal was found by Cheapflights users on 12/1. 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.
Fri 12/57:00 amONT - HNL
Nonstop6h 13mAlaska Airlines
Mon 12/222:44 pmHNL - ONT
Nonstop5h 24mAlaska Airlines
Deal found 12/1$468
This Delta deal was found by Cheapflights users on 12/3. 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.
Tue 12/306:00 amONT - HNL
2 stops17h 44mDelta
Mon 2/210:30 pmHNL - ONT
2 stops15h 45mDelta
Deal found 12/3$469
This Delta deal was found by Cheapflights users on 12/3. 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.
Mon 12/156:40 amONT - HNL
1 stop15h 49mDelta
Thu 12/2510:50 amHNL - ONT
1 stop9h 43mDelta
Deal found 12/3$477
This Alaska Airlines deal was found by Cheapflights users on 12/1. 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.
Mon 12/87:00 amONT - HNL
Nonstop6h 13mAlaska Airlines
Wed 12/172:09 pmHNL - ONT
Nonstop5h 34mAlaska Airlines
Deal found 12/1$478
This Alaska Airlines deal was found by Cheapflights users on 12/1. 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
Mon 12/222:44 pmHNL - ONT
Nonstop5h 24mAlaska Airlines
Deal found 12/1$488

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 4, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$318
(Alaska Airlines)

One-way from

$97
(Southwest)

Popular in

June

Cheapest in

February

Average price

$480

Good round-trip deal

$398 or less

Good one-way deal

$269 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 ($61 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($11 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 4, 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 1/16

8:13 am-12:29 pm

Nonstop6h 16m

Honolulu

Sat 1/31

2:54 pm-10:28 pm

Nonstop5h 34m

$318

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Sun 3/1

8:41 am-12:45 pm

Nonstop6h 04m

Honolulu

Fri 3/6

2:40 pm-10:15 pm

Nonstop5h 35m

$324

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Sat 1/24

8:13 am-12:29 pm

Nonstop6h 16m

Honolulu

Thu 1/29

8:50 am-8:10 pm

1 stop9h 20m

$328

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Mon 1/5

6:25 am-1:10 pm

1 stop8h 45m

Honolulu

Fri 1/16

12:30 pm-10:00 pm

1 stop7h 30m

$342

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Thu 2/19

8:41 am-12:45 pm

Nonstop6h 04m

Honolulu

Mon 2/23

2:40 pm-10:15 pm

Nonstop5h 35m

$356

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Fri 1/30

6:00 am-2:14 pm

1 stop10h 14m

Honolulu

Sun 2/1

2:54 pm-10:28 pm

Nonstop5h 34m

$358

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Mon 1/5

8:00 am-12:19 pm

Nonstop6h 19m

Honolulu

Fri 1/16

2:54 pm-10:28 pm

Nonstop5h 34m

$358

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Thu 1/29

7:30 am-9:28 pm

2 stops15h 58m

Honolulu

Mon 2/2

10:30 pm-4:15 pm

2 stops15h 45m

$370

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Mon 1/12

6:00 am-9:28 pm

2 stops17h 28m

Honolulu

Mon 1/19

10:30 pm-4:15 pm

2 stops15h 45m

$379

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Thu 1/22

1:53 pm-8:55 pm

1 stop9h 02m

Honolulu

Mon 2/2

8:00 am-5:43 pm

1 stop7h 43m

$393

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/3

Showing 1-10 of 21 results
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2
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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 $150). 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 December 4, 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 29, 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 4, 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
11,396 reviews

Crew

8.5

Food

7.1

Comfort

7.8

Overall

8.0

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

LAX - LIH

The staff were exceptional! They all were kind, accommodating, and professional.
Alaska Airlines
8.0
Very good
11,396 reviews
Alaska Airlines
8.0
Very good
11,396 reviews

Crew

8.5

Food

7.1

Comfort

7.8

Overall

8.0

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

LAX - LIH

The staff were exceptional! They all were kind, accommodating, and professional.
Southwest
8.0
Very good
4,252 reviews
Alaska Airlines
8.0
Very good
11,396 reviews

Crew

8.5

Food

7.1

Comfort

7.8

Overall

8.0

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

LAX - LIH

The staff were exceptional! They all were kind, accommodating, and professional.
Hawaiian Airlines
7.8
Good
2,815 reviews
Alaska Airlines
8.0
Very good
11,396 reviews

Crew

8.5

Food

7.1

Comfort

7.8

Overall

8.0

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

LAX - LIH

The staff were exceptional! They all were kind, accommodating, and professional.
United Airlines
7.4
Good
9,063 reviews
Alaska Airlines
8.0
Very good
11,396 reviews

Crew

8.5

Food

7.1

Comfort

7.8

Overall

8.0

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

LAX - LIH

The staff were exceptional! They all were kind, accommodating, and professional.
American Airlines
7.2
Good
11,043 reviews
Alaska Airlines
8.0
Very good
11,396 reviews

Crew

8.5

Food

7.1

Comfort

7.8

Overall

8.0

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

LAX - LIH

The staff were exceptional! They all were kind, accommodating, and professional.

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 Southwest can get you from Ontario to O'ahu in just under 6h 16m. Your travel time can differ by up to 2h 29m. 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 Alaska Airlines, which is currently one of the cheapest options available, starting at $124. American Airlines flights start at $125 while deals on United Airlines start at $131 one-way.

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

    On average you can expect to pay $1,238 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 $193.

  • 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 $150). 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

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Alternative routes for Ontario to O'ahu

See prices for flight routes from nearby airports that may be better suited for you.
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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 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$168Average$337FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$281Average$471FlexibilityNo cancel feeOn-time85%
United AirlinesCheapest$283Average$513FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$317Average$500FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$357Average$635FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$407Average$583FlexibilityNo cancel feeOn-time63%

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