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$136+ 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 1/27. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — HNL
Dec 29 — Jan 51
Mon 12/29
Mon 1/5
1 adult, Economy
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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 29, 2025.

This Alaska Airlines deal was found by Cheapflights users on 11/28. 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
Thu 12/252:44 pmHNL - ONT
Nonstop5h 24mAlaska Airlines
Deal found 11/28$438
This Alaska Airlines deal was found by Cheapflights users on 11/26. 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 12/177:00 amONT - HNL
Nonstop6h 13mAlaska Airlines
Wed 1/142:54 pmHNL - ONT
Nonstop5h 34mAlaska Airlines
Deal found 11/26$448
This KAYAK deal was found by Cheapflights users on 11/27. 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 KAYAK 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
Thu 12/1112:49 pmHNL - ONT
Nonstop5h 34mAlaska Airlines
Deal found 11/27$458
This KAYAK deal was found by Cheapflights users on 11/28. 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 KAYAK 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
Wed 12/1011:59 pmHNL - ONT
1 stop9h 20mAlaska Airlines
Deal found 11/28$468
This Jettzy deal was found by Cheapflights users on 11/27. 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 Jettzy is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/228:00 amONT - HNL
Nonstop6h 19mHawaiian Airlines
Thu 1/12:44 pmHNL - ONT
Nonstop5h 24mHawaiian Airlines
Deal found 11/27$470
This Cheapflightsfares deal was found by Cheapflights users on 11/28. 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 12/97:00 amONT - HNL
Nonstop6h 13mAlaska Airlines
Tue 12/162:09 pmHNL - ONT
Nonstop5h 34mAlaska Airlines
Deal found 11/28$473
This Delta deal was found by Cheapflights users on 11/27. 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 12/116:00 amONT - HNL
2 stops16h 29mDelta
Wed 12/1711:23 pmHNL - ONT
1 stop9h 50mDelta
Deal found 11/27$475
This Delta deal was found by Cheapflights users on 11/27. 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 12/166:40 amONT - HNL
1 stop15h 49mDelta
Thu 12/2510:50 amHNL - ONT
1 stop9h 43mDelta
Deal found 11/27$477
This Alaska Airlines deal was found by Cheapflights users on 11/28. 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 12/812:49 pmHNL - ONT
Nonstop5h 34mAlaska Airlines
Deal found 11/28$478
This Alaska Airlines deal was found by Cheapflights users on 11/29. 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.
Sun 12/76:00 amONT - HNL
1 stop10h 21mAlaska Airlines
Mon 12/222:44 pmHNL - ONT
Nonstop5h 24mAlaska Airlines
Deal found 11/29$486

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 29, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$372
(Southwest)

One-way from

$136
(Cheapflightsfares)

Popular in

June

Cheapest in

February

Average price

$406

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 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 29, 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

Tue 1/20

6:00 am-3:10 pm

1 stop11h 10m

Honolulu

Sat 1/24

10:50 pm-11:18 am

2 stops10h 28m

$372

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Mon 1/19

8:13 am-12:29 pm

Nonstop6h 16m

Honolulu

Sat 1/24

8:00 am-8:36 pm

1 stop10h 36m

$388

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Sun 4/19

9:50 am-12:45 pm

Nonstop5h 55m

Honolulu

Fri 5/1

12:40 pm-9:15 pm

Nonstop5h 35m

$436

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Sun 4/5

9:50 am-12:45 pm

Nonstop5h 55m

Honolulu

Wed 4/8

1:20 pm-9:55 pm

Nonstop5h 35m

$436

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Sun 5/24

8:00 am-10:55 am

Nonstop5h 55m

Honolulu

Fri 5/29

12:55 pm-9:27 pm

Nonstop5h 32m

$436

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Fri 3/13

8:45 am-11:49 am

Nonstop6h 04m

Honolulu

Thu 3/19

7:00 am-10:38 pm

1 stop12h 38m

$446

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Mon 4/13

5:15 am-12:15 pm

1 stop10h 00m

Honolulu

Thu 4/16

11:05 am-9:20 pm

1 stop7h 15m

$451

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Tue 5/5

12:40 pm-9:00 pm

2 stops11h 20m

Honolulu

Tue 5/12

11:55 am-10:15 pm

1 stop7h 20m

$456

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Sun 5/17

8:00 am-10:55 am

Nonstop5h 55m

Honolulu

Mon 5/25

12:55 pm-9:27 pm

Nonstop5h 32m

$457

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Mon 5/4

7:00 am-7:21 pm

1 stop15h 21m

Honolulu

Thu 5/14

9:45 pm-4:14 pm

2 stops15h 29m

$460

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/27

Showing 1-10 of 23 results
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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 $148). 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 29, 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 November 29, 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
11,375 reviews

Food

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Comfort

7.8

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
11,375 reviews
Alaska Airlines
8.0
Very good
11,375 reviews

Food

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Comfort

7.8

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
4,255 reviews
Alaska Airlines
8.0
Very good
11,375 reviews

Food

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Comfort

7.8

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
11,375 reviews

Food

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Comfort

7.8

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
9,056 reviews
Alaska Airlines
8.0
Very good
11,375 reviews

Food

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Comfort

7.8

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
11,375 reviews

Food

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Comfort

7.8

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?

    United Airlines and Alaska Airlines can get you from Ontario to O'ahu in just under 6h 16m. Your travel time can differ by up to 4h 54m. 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 $997 for a flight from Ontario to O'ahu. The cheapest flight overall is $199 while the most popular route, (Ontario - Honolulu) is currently priced at $271.

  • 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 $148). 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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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 29, 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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