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Ontario

$177+ Cheap flights from O'ahu to Ontario (ONT)

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 12/10. Fares are subject to change and may not be available on all flights or dates of travel.
HNL — ONT
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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Cheap flight deals from O'ahu to Ontario

Keep the following information in mind while searching for O'ahu to Ontario 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

$333

Good round-trip deal

$432 or less

Good one-way deal

$201 or less
From O'ahu to Ontario
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One-way flight from O'ahu to Ontario
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Highest demand for flights based on searches. 17% potential increase in price ($83 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 O'ahu to Ontario.
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Price to beat on a one-way flight from O'ahu to Ontario.
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Find flight deals from O'ahu to Ontario

Cheapest flights from O'ahu to Ontario
Explore the most affordable flight options available from O'ahu to Ontario. 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 9/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1410:31 pmHNL - ONT
1 stop9h 37mDelta
Tue 10/2111:48 amONT - HNL
1 stop10h 21mDelta
Deal found 9/16$375
This Hawaiian 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/79:40 amHNL - ONT
Nonstop5h 34mHawaiian Airlines
Mon 11/109:45 amONT - HNL
Nonstop6h 03mHawaiian Airlines
Deal found 9/15$386
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/412:49 pmHNL - ONT
Nonstop5h 34mAlaska Airlines
Thu 1/18:00 amONT - HNL
Nonstop6h 19mAlaska Airlines
Deal found 9/15$392
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.
Fri 11/711:55 pmHNL - ONT
1 stop13h 22mAlaska Airlines
Tue 11/119:45 amONT - HNL
Nonstop6h 03mAlaska Airlines
Deal found 9/14$396
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.
Sat 11/89:40 amHNL - ONT
Nonstop5h 34mAlaska Airlines
Mon 11/109:45 amONT - HNL
Nonstop6h 03mAlaska Airlines
Deal found 9/14$397
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1512:05 pmHNL - ONT
Nonstop5h 32mAlaska Airlines
Wed 10/2211:07 amONT - HNL
Nonstop5h 58mAlaska Airlines
Deal found 9/15$398
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.
Wed 10/159:25 amHNL - ONT
1 stop10h 27mUnited Airlines
Thu 10/306:00 amONT - HNL
2 stops13h 05mUnited Airlines
Deal found 9/14$401
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.
Mon 11/2412:58 pmHNL - ONT
Nonstop5h 33mAlaska Airlines
Sat 11/297:50 amONT - HNL
Nonstop6h 08mAlaska Airlines
Deal found 9/16$403
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/711:55 pmHNL - ONT
1 stop13h 22mAlaska Airlines
Mon 11/106:03 pmONT - HNL
1 stop19h 02mAlaska Airlines
Deal found 9/15$405
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/18:00 amHNL - ONT
2 stops11h 52mUnited Airlines
Tue 10/141:53 pmONT - HNL
1 stop8h 15mUnited Airlines
Deal found 9/16$406

Cheapflights Fare Finder

 
Customize your flight search to find flights from O'ahu to Ontario 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 O'ahu to Ontario that are best for you.

Fly from

O'ahu

Fly to

Ontario

Route

Depart

Return

Price

HonoluluOntario

HNL - ONT

HNLONT

Honolulu

Wed 10/8

8:00 am-10:52 pm

2 stops11h 52m

Ontario

Tue 10/14

1:53 pm-7:08 pm

1 stop8h 15m

$380

HonoluluOntario

HNL - ONT

HNLONT

Honolulu

Thu 12/11

12:49 pm-8:23 pm

Nonstop5h 34m

Ontario

Mon 12/15

7:36 am-11:49 am

Nonstop6h 13m

$386

HonoluluOntario

HNL - ONT

HNLONT

Honolulu

Fri 11/7

9:40 am-5:14 pm

Nonstop5h 34m

Ontario

Wed 11/12

9:45 am-1:48 pm

Nonstop6h 03m

$386

HonoluluOntario

HNL - ONT

HNLONT

Honolulu

Tue 3/3

2:20 pm-9:55 pm

Nonstop5h 35m

Ontario

Wed 3/4

6:00 am-1:50 pm

1 stop9h 50m

$391

HonoluluOntario

HNL - ONT

HNLONT

Honolulu

Wed 10/22

12:05 pm-8:37 pm

Nonstop5h 32m

Ontario

Mon 10/27

9:45 am-12:48 pm

Nonstop6h 03m

$392

HonoluluOntario

HNL - ONT

HNLONT

Honolulu

Mon 11/10

9:40 am-5:14 pm

Nonstop5h 34m

Ontario

Wed 11/12

9:45 am-1:48 pm

Nonstop6h 03m

$392

HonoluluOntario

HNL - ONT

HNLONT

Honolulu

Wed 11/5

11:55 am-11:56 pm

1 stop10h 01m

Ontario

Wed 11/12

9:45 am-1:48 pm

Nonstop6h 03m

$396

HonoluluOntario

HNL - ONT

HNLONT

Honolulu

Fri 11/7

11:55 pm-3:17 pm

1 stop13h 22m

Ontario

Mon 11/10

9:45 am-1:48 pm

Nonstop6h 03m

$396

HonoluluOntario

HNL - ONT

HNLONT

Honolulu

Tue 11/4

9:55 pm-11:05 am

1 stop11h 10m

Ontario

Mon 11/10

9:45 am-1:48 pm

Nonstop6h 03m

$396

HonoluluOntario

HNL - ONT

HNLONT

Honolulu

Sat 11/8

9:40 am-5:14 pm

Nonstop5h 34m

Ontario

Sun 11/9

9:45 am-1:48 pm

Nonstop6h 03m

$397

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 22 results
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Best time to book a flight from O'ahu to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from O'ahu 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 O'ahu to Ontario

What is the cheapest month to book a flight from O'ahu to Ontario?

Currently, August is the cheapest month in which you can book a flight from O'ahu to Ontario (average of $246). Flying from O'ahu to Ontario in March is currently the most expensive (average of $327). 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 FUW to ONT?

Find hourly flight availability from O'ahu to Ontario. 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 O'ahu to Ontario, 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 O'ahu to Ontario

Explore weekly flight availability from O'ahu to Ontario. 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 zzFUW to ONT are scheduled on a Monday (3 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (1 on average).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated September 16, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest, and Hawaiian Airlines from O'ahu to Ontario by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

Boarding

8.1

Crew

8.5

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

Food

7.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

Boarding

8.1

Crew

8.5

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

Food

7.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

Boarding

8.1

Crew

8.5

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

Food

7.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

Boarding

8.1

Crew

8.5

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

Food

7.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

Boarding

8.1

Crew

8.5

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

Food

7.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

Boarding

8.1

Crew

8.5

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 O'ahu to Ontario. 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 into for flights to Ontario from O'ahu?

    If you book a flight to Ontario from O'ahu, you will be flying to Ontario, which is the city’s only airport. Ontario (ONT) is located 3.1 mi from the center of Ontario.

  • How popular is this O'ahu to Ontario flight route?

    The O'ahu to Ontario flight path was viewed by 14 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    United Airlines, Alaska Airlines, and Hawaiian Airlines can get you from O'ahu to Ontario in just under 5h 34m. Your travel time can differ by up to 6h 18m. There are 2598 mi between O'ahu and Ontario. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from O'ahu to Ontario one-way?

    $188 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on Hawaiian Airlines and Alaska Airlines, with prices starting from $193 and $193, respectively.

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

    The cheapest flight price from O'ahu to Ontario is $194. On average you can expect to pay $337. The most popular route, (Honolulu - Ontario), can usually be booked for $305.

  • Can I find deals for flights from O'ahu to Ontario that include hotel bookings?

    Yes. In addition to deals on O'ahu to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from O'ahu to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from O'ahu to Ontario.

  • Can I find deals for business class flights from O'ahu to Ontario?

    Yes. Cheapflights offers flight deals from O'ahu to Ontario 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 O'ahu to Ontario?

    Currently, August is the cheapest month in which you can book a flight from O'ahu to Ontario (average of $246). Flying from O'ahu to Ontario in March is currently the most expensive (average of $327). 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 O'ahu to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from O'ahu to Ontario

Discover the top 5 airlines that operate flights from O'ahu to Ontario. 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
Hawaiian AirlinesCheapest$223Average$443FlexibilityNo cancel feeOn-time85%
American AirlinesCheapest$238Average$586FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$296Average$530FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$318Average$519FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$497Average$668FlexibilityNo cancel feeOn-time63%

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