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$152+ 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 10/29. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — HNL
Aug 7 — Aug 141
Thu 8/7
Thu 8/14
1 adult, Economy
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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 August 2, 2025.

Round-trip from

$379
(Delta)

One-way from

$152
(lastminute.com)

Popular in

June

Cheapest in

January

Average price

$407

Good round-trip deal

$426 or less

Good one-way deal

$279 or less
From Ontario to O'ahu
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One-way flight from Ontario to O'ahu
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Highest demand for flights based on searches. 18% potential increase in price ($83 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($13 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from Ontario to O'ahu.
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Price to beat on a one-way flight from Ontario to O'ahu.
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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 August 2, 2025.

This Delta deal was found by Cheapflights users on 7/31. 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 9/2311:50 amONT - HNL
1 stop10h 07mDelta
Wed 10/110:33 pmHNL - ONT
1 stop15h 27mDelta
Deal found 7/31$379
This Kissandfly.com deal was found by Cheapflights users on 7/31. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/253:04 pmONT - HNL
1 stop11h 32mHawaiian Airlines
Wed 9/312:38 pmHNL - ONT
Nonstop5h 32mHawaiian Airlines
Deal found 7/31$382
This United Airlines deal was found by Cheapflights users on 8/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/81:42 pmONT - HNL
1 stop7h 51mUnited Airlines
Thu 9/117:00 amHNL - ONT
1 stop7h 37mUnited Airlines
Deal found 8/1$383
This Alaska Airlines deal was found by Cheapflights users on 7/31. 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 11/39:45 amONT - HNL
Nonstop6h 03mAlaska Airlines
Sun 11/910:06 pmHNL - ONT
1 stop9h 52mAlaska Airlines
Deal found 7/31$384
This American Airlines deal was found by Cheapflights users on 7/31. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/256:17 amONT - HNL
1 stop9h 05mAmerican Airlines
Tue 9/29:11 pmHNL - ONT
1 stop18h 05mAmerican Airlines
Deal found 7/31$390
This Bravofly deal was found by Cheapflights users on 8/1. 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 Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/253:04 pmONT - HNL
1 stop11h 32mMultiple Airlines
Wed 9/312:38 pmHNL - ONT
Nonstop5h 32mMultiple Airlines
Deal found 8/1$398
This Southwest deal was found by Cheapflights users on 8/1. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/210:00 amONT - HNL
1 stop9h 05mSouthwest
Tue 9/99:05 pmHNL - ONT
2 stops10h 05mSouthwest
Deal found 8/1$412

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 August 2, 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 9/23

11:50 am-6:57 pm

1 stop10h 07m

Honolulu

Wed 10/1

10:33 pm-5:00 pm

1 stop15h 27m

$379

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Mon 8/25

3:04 pm-11:36 pm

1 stop11h 32m

Honolulu

Wed 9/3

12:38 pm-9:10 pm

Nonstop5h 32m

$382

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Mon 9/8

1:42 pm-6:33 pm

1 stop7h 51m

Honolulu

Thu 9/11

7:00 am-5:37 pm

1 stop7h 37m

$383

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Fri 10/31

11:59 am-8:03 pm

1 stop11h 04m

Honolulu

Thu 11/6

9:40 am-5:14 pm

Nonstop5h 34m

$384

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Mon 8/25

6:17 am-12:22 pm

1 stop9h 05m

Honolulu

Tue 9/2

9:11 pm-6:16 pm

1 stop18h 05m

$390

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Mon 8/25

3:04 pm-11:36 pm

1 stop11h 32m

Honolulu

Wed 9/3

12:38 pm-9:10 pm

Nonstop5h 32m

$398

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Tue 9/2

10:00 am-4:05 pm

1 stop9h 05m

Honolulu

Tue 9/9

9:05 pm-10:10 am

2 stops10h 05m

$412

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Wed 10/29

11:59 am-8:03 pm

1 stop11h 04m

$152

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Sun 8/24

11:40 am-7:05 pm

1 stop10h 25m

$160

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Fri 8/15

8:05 am-4:05 pm

1 stop11h 00m

$169

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/31

Showing 1-10 of 13 results
1
2

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, November is the cheapest month in which you can book a flight from Ontario to O'ahu (average of $469). Flying from Ontario to O'ahu in June is currently the most expensive (average of $687). 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 August 2, 2025.

When flying from Ontario to O'ahu, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 August 2, 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 August 2, 2025.
See what other customers who have flown with Alaska Airlines, Southwest, and Delta 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
10,000 reviews

Crew

8.5

Entertainment

7.1

Food

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.1

Food

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,246 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.1

Food

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,985 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.1

Food

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.8
Good
2,613 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.1

Food

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,905 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.1

Food

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 20 times in the past calendar month.

  • 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 $152. Delta flights start at $160 while deals on Southwest start at $169 one-way.

  • What are the most reliable airlines from Ontario to O'ahu?

    Consider American Airlines (100%), Alaska Airlines (94%) or Hawaiian Airlines (94%) when booking your flight. These represent the most reliable airlines when flying from Ontario to O'ahu.

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

    On average you can expect to pay $779 for a flight from Ontario to O'ahu. The cheapest flight overall is $201 while the most popular route, (Ontario - Honolulu) is currently priced at $319.

  • 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, November is the cheapest month in which you can book a flight from Ontario to O'ahu (average of $469). Flying from Ontario to O'ahu in June is currently the most expensive (average of $687). 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 August 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$158Average$337FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$239Average$527FlexibilityNo cancel feeOn-time69%
Hawaiian AirlinesCheapest$266Average$447FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$316Average$496FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$357Average$630FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$367Average$585FlexibilityNo cancel feeOn-time63%

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