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Ontario

$149+ 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 2/2. Fares are subject to change and may not be available on all flights or dates of travel.
HNL — ONT
Jan 20 — Jan 271
Tue 1/20
Tue 1/27
1 adult, Economy
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Cheap 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 December 21, 2025.

This Alaska Airlines deal was found by Cheapflights users on 12/19. 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 12/242:44 pmHNL - ONT
Nonstop5h 24mMultiple Airlines
Sat 1/101:46 pmONT - HNL
1 stop10h 08mMultiple Airlines
Deal found 12/19$438
This Alaska Airlines deal was found by Cheapflights users on 12/19. 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 12/242:44 pmHNL - ONT
Nonstop5h 24mAlaska Airlines
Sun 1/118:13 amONT - HNL
Nonstop6h 16mAlaska Airlines
Deal found 12/19$440
This Alaska Airlines deal was found by Cheapflights users on 12/19. 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 12/242:44 pmHNL - ONT
Nonstop5h 24mMultiple Airlines
Sun 1/116:00 amONT - HNL
1 stop10h 14mMultiple Airlines
Deal found 12/19$441
This United Airlines deal was found by Cheapflights users on 12/18. 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.
Fri 12/2611:50 pmHNL - ONT
1 stop8h 09mUnited Airlines
Fri 1/96:00 amONT - HNL
1 stop9h 19mUnited Airlines
Deal found 12/18$447
This Expedia deal was found by Cheapflights users on 12/18. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/262:44 pmHNL - ONT
Nonstop5h 24mMultiple Airlines
Fri 1/91:46 pmONT - HNL
1 stop10h 08mMultiple Airlines
Deal found 12/18$468
This Alaska Airlines deal was found by Cheapflights users on 12/17. 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 12/272:44 pmHNL - ONT
Nonstop5h 24mAlaska Airlines
Sun 1/118:13 amONT - HNL
Nonstop6h 16mAlaska Airlines
Deal found 12/17$470
This Southwest deal was found by Cheapflights users on 12/18. 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.
Fri 12/268:00 amHNL - ONT
2 stops12h 00mSouthwest
Fri 1/96:05 amONT - HNL
1 stop9h 10mSouthwest
Deal found 12/18$480
This Delta deal was found by Cheapflights users on 12/18. 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 12/2411:15 pmHNL - ONT
1 stop11h 14mDelta
Wed 12/316:00 amONT - HNL
1 stop11h 52mDelta
Deal found 12/18$497
This Alaska Airlines deal was found by Cheapflights users on 12/18. 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 12/262:44 pmHNL - ONT
Nonstop5h 24mAlaska Airlines
Fri 1/98:13 amONT - HNL
Nonstop6h 16mAlaska Airlines
Deal found 12/18$498
This United Airlines deal was found by Cheapflights users on 12/19. 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 12/2211:50 pmHNL - ONT
1 stop8h 11mUnited Airlines
Sun 1/116:00 amONT - HNL
1 stop11h 10mUnited Airlines
Deal found 12/19$514

Find 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 December 21, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$298
(Alaska Airlines)

One-way from

$146
(Trip.com)

Popular in

June

Cheapest in

February

Average price

$397

Good round-trip deal

$507 or less

Good one-way deal

$219 or less
Provider with most accurate pricing for Honolulu-Los Angeles flight deals.
Search Deals
Provider most trusted by Cheapflights users for Honolulu-Los Angeles flights.
Search Deals
From O'ahu to Ontario
Search Deals
One-way flight from O'ahu to Ontario
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($70 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 O'ahu to Ontario.
Search Deals
Price to beat on a one-way flight from O'ahu to Ontario.
Search Deals

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 December 21, 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

Fri 1/23

2:54 pm-10:28 pm

Nonstop5h 34m

Ontario

Mon 1/26

8:13 am-12:29 pm

Nonstop6h 16m

$308

HonoluluOntario

HNL - ONT

HNLONT

Honolulu

Tue 3/3

2:40 pm-10:15 pm

Nonstop5h 35m

Ontario

Wed 3/4

8:41 am-12:45 pm

Nonstop6h 04m

$312

HonoluluOntario

HNL - ONT

HNLONT

Honolulu

Thu 1/22

8:00 am-11:56 pm

1 stop13h 56m

Ontario

Mon 1/26

8:13 am-12:29 pm

Nonstop6h 16m

$318

HonoluluOntario

HNL - ONT

HNLONT

Honolulu

Thu 1/22

2:54 pm-10:28 pm

Nonstop5h 34m

Ontario

Thu 1/29

8:13 am-12:29 pm

Nonstop6h 16m

$318

HonoluluOntario

HNL - ONT

HNLONT

Honolulu

Thu 1/22

10:50 pm-11:18 am

2 stops10h 28m

Ontario

Mon 1/26

6:00 am-1:19 pm

1 stop9h 19m

$322

HonoluluOntario

HNL - ONT

HNLONT

Honolulu

Tue 3/3

2:40 pm-10:15 pm

Nonstop5h 35m

Ontario

Wed 3/4

7:00 am-2:33 pm

1 stop9h 33m

$322

HonoluluOntario

HNL - ONT

HNLONT

Honolulu

Thu 1/22

1:19 pm-10:59 am

1 stop19h 40m

Ontario

Thu 1/29

8:13 am-12:29 pm

Nonstop6h 16m

$328

HonoluluOntario

HNL - ONT

HNLONT

Honolulu

Wed 3/4

10:55 pm-12:07 pm

1 stop11h 12m

Ontario

Sun 3/8

6:00 am-8:53 pm

2 stops17h 53m

$334

HonoluluOntario

HNL - ONT

HNLONT

Honolulu

Sun 1/18

10:50 pm-11:18 am

2 stops10h 28m

Ontario

Sun 1/25

6:00 am-1:19 pm

1 stop9h 19m

$339

HonoluluOntario

HNL - ONT

HNLONT

Honolulu

Fri 2/13

2:40 pm-10:15 pm

Nonstop5h 35m

Ontario

Sun 2/22

8:41 am-12:45 pm

Nonstop6h 04m

$342

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/18

Showing 1-10 of 20 results
1
2

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, January is the cheapest month in which you can book a flight from O'ahu to Ontario (average of $133). Flying from O'ahu to Ontario in July is currently the most expensive (average of $254). 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 December 21, 2025.

It’s typically best to fly out from O'ahu to Ontario at noon. Doing so could potentially save you 17% on the flight price compared to flying in the morning, which is usually more expensive.

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 December 21, 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
11,492 reviews

Entertainment

7.0

Food

7.1

Crew

8.5

Overall

8.0

Comfort

7.8

Boarding

8.1

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
11,492 reviews
Alaska Airlines
8.0
Very good
11,492 reviews

Entertainment

7.0

Food

7.1

Crew

8.5

Overall

8.0

Comfort

7.8

Boarding

8.1

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
4,257 reviews
Alaska Airlines
8.0
Very good
11,492 reviews

Entertainment

7.0

Food

7.1

Crew

8.5

Overall

8.0

Comfort

7.8

Boarding

8.1

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
2,821 reviews
Alaska Airlines
8.0
Very good
11,492 reviews

Entertainment

7.0

Food

7.1

Crew

8.5

Overall

8.0

Comfort

7.8

Boarding

8.1

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
9,099 reviews
Alaska Airlines
8.0
Very good
11,492 reviews

Entertainment

7.0

Food

7.1

Crew

8.5

Overall

8.0

Comfort

7.8

Boarding

8.1

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 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 16 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?

    Alaska Airlines can get you from O'ahu to Ontario in just under 5h 34m. Your travel time will be generally consistent. There are 2598 mi between O'ahu and Ontario. All flights are typically nonstop.

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

    $159 is the cheapest one-way deal found within the past few days, from Alaska Airlines. You may also be able to find cheap deals on United Airlines and Hawaiian Airlines, with prices starting from $160 and $164, respectively.

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

    The cheapest flight price from O'ahu to Ontario is $159. On average you can expect to pay $403. The most popular route, (Honolulu - Ontario), can usually be booked for $298.

  • 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, January is the cheapest month in which you can book a flight from O'ahu to Ontario (average of $133). Flying from O'ahu to Ontario in July is currently the most expensive (average of $254). 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 December 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$229Average$402FlexibilityNo cancel feeOn-time85%
United AirlinesCheapest$296Average$516FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$309Average$598FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$343Average$523FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$497Average$623FlexibilityNo cancel feeOn-time63%

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