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$177+ 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
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
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 September 16, 2025.

Round-trip from

$375
(Delta)

One-way from

$177
(KAYAK)

Popular in

June

Cheapest in

February

Average price

$344

Good round-trip deal

$421 or less

Good one-way deal

$207 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. 16% potential increase in price ($75 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in September 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 September 16, 2025.

This Delta deal was found by Cheapflights users on 9/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/157:35 amONT - HNL
1 stop14h 34mDelta
Thu 10/3010:31 pmHNL - ONT
1 stop12h 30mDelta
Deal found 9/15$375
This American Airlines deal was found by Cheapflights users on 9/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/296:15 amONT - HNL
1 stop11h 29mAmerican Airlines
Thu 11/610:55 pmHNL - ONT
1 stop8h 00mAmerican Airlines
Deal found 9/15$376
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Tue 10/141:53 pmONT - HNL
1 stop8h 15mUnited Airlines
Tue 10/218:00 amHNL - ONT
2 stops11h 52mUnited Airlines
Deal found 9/14$380
This lastminute.com deal was found by Cheapflights users on 9/15. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/299:45 amONT - HNL
Nonstop6h 03mHawaiian Airlines
Thu 11/69:40 amHNL - ONT
Nonstop5h 34mHawaiian Airlines
Deal found 9/15$381
This Cheapflightsfares deal was found by Cheapflights users on 9/14. 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.
Wed 11/511:59 amONT - HNL
1 stop10h 05mAlaska Airlines
Mon 11/109:40 amHNL - ONT
Nonstop5h 34mAlaska Airlines
Deal found 9/14$382
This Cheapflightsfares deal was found by Cheapflights users on 9/16. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2610:09 amONT - HNL
Nonstop6h 01mAlaska Airlines
Tue 10/712:05 pmHNL - ONT
Nonstop5h 32mAlaska Airlines
Deal found 9/16$383
This Alaska Airlines deal was found by Cheapflights users on 9/16. 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 12/37:36 amONT - HNL
Nonstop6h 13mAlaska Airlines
Wed 12/1012:49 pmHNL - ONT
Nonstop5h 34mAlaska Airlines
Deal found 9/16$386
This flugladen.de deal was found by Cheapflights users on 9/14. 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 flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/27:36 amONT - HNL
Nonstop6h 13mHawaiian Airlines
Tue 12/161:36 pmHNL - ONT
Nonstop5h 34mHawaiian Airlines
Deal found 9/14$388
This lastminute.com deal was found by Cheapflights users on 9/15. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/27:36 amONT - HNL
Nonstop6h 13mHawaiian Airlines
Fri 12/1212:49 pmHNL - ONT
Nonstop5h 34mHawaiian Airlines
Deal found 9/15$389
This Alaska Airlines deal was found by Cheapflights users on 9/14. 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 10/309:45 amONT - HNL
Nonstop6h 03mAlaska Airlines
Wed 11/59:40 amHNL - ONT
Nonstop5h 34mAlaska Airlines
Deal found 9/14$392

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 September 16, 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

Sun 11/9

9:45 am-1:48 pm

Nonstop6h 03m

Honolulu

Thu 11/13

9:40 am-5:14 pm

Nonstop5h 34m

$392

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Wed 10/22

7:35 am-7:09 pm

1 stop14h 34m

Honolulu

Mon 10/27

10:31 pm-11:08 am

1 stop9h 37m

$396

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Wed 12/3

7:36 am-11:49 am

Nonstop6h 13m

Honolulu

Fri 12/5

8:50 am-8:03 pm

1 stop9h 13m

$396

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Thu 11/6

7:35 am-8:09 pm

1 stop14h 34m

Honolulu

Wed 11/12

11:28 pm-11:06 am

1 stop9h 38m

$396

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Sun 10/26

9:45 am-12:48 pm

Nonstop6h 03m

Honolulu

Fri 10/31

11:18 pm-3:17 pm

1 stop12h 59m

$396

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Sat 12/6

4:15 pm-11:20 am

1 stop21h 05m

Honolulu

Tue 12/9

12:49 pm-8:23 pm

Nonstop5h 34m

$399

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Sat 11/15

8:35 am-3:00 pm

1 stop8h 25m

Honolulu

Wed 11/19

9:00 pm-9:15 am

1 stop10h 15m

$401

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Wed 12/3

6:00 am-1:05 pm

1 stop9h 05m

Honolulu

Sat 12/6

8:00 am-5:37 pm

1 stop7h 37m

$401

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Thu 10/23

7:35 am-7:09 pm

1 stop14h 34m

Honolulu

Tue 10/28

10:31 pm-3:53 pm

2 stops14h 22m

$401

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Fri 11/14

9:45 am-1:48 pm

Nonstop6h 03m

Honolulu

Fri 11/14

10:06 pm-9:58 am

1 stop9h 52m

$401

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 21 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, 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 September 16, 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 September 16, 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 September 16, 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
10,000 reviews

Boarding

8.1

Comfort

7.8

Crew

8.5

Overall

8.0

Food

7.1

Entertainment

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Crew

8.5

Overall

8.0

Food

7.1

Entertainment

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Southwest
8.0
Very good
4,242 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Crew

8.5

Overall

8.0

Food

7.1

Entertainment

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Hawaiian Airlines
7.8
Good
2,724 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Crew

8.5

Overall

8.0

Food

7.1

Entertainment

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
United Airlines
7.4
Good
8,924 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Crew

8.5

Overall

8.0

Food

7.1

Entertainment

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Crew

8.5

Overall

8.0

Food

7.1

Entertainment

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

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 23 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 03m. Your travel time can differ by up to 8h 31m. 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 Southwest, which is currently one of the cheapest options available, starting at $188. Delta flights start at $188 while deals on Alaska Airlines start at $193 one-way.

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

    On average you can expect to pay $1,076 for a flight from Ontario to O'ahu. The cheapest flight overall is $177 while the most popular route, (Ontario - Honolulu) is currently priced at $353.

  • 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 September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$158Average$337FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$239Average$508FlexibilityNo cancel feeOn-time69%
Hawaiian AirlinesCheapest$271Average$451FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$317Average$500FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$357Average$634FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$367Average$590FlexibilityNo cancel feeOn-time63%

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