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Ontario

$148+ 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 11/19. Fares are subject to change and may not be available on all flights or dates of travel.
HNL — ONT
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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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 October 30, 2025.

This Delta deal was found by Cheapflights users on 10/29. 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 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
Thu 1/16:00 amONT - HNL
1 stop11h 52mDelta
Deal found 10/29$337
This Delta deal was found by Cheapflights users on 10/27. 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 12/411:23 pmHNL - ONT
1 stop9h 50mDelta
Mon 12/86:00 amONT - HNL
2 stops16h 29mDelta
Deal found 10/27$342
This flugladen.de deal was found by Cheapflights users on 10/29. 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 flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/209:40 amHNL - ONT
Nonstop5h 34mHawaiian Airlines
Wed 11/267:50 amONT - HNL
Nonstop6h 08mHawaiian Airlines
Deal found 10/29$346
This Alaska Airlines deal was found by Cheapflights users on 10/30. 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 12/1212:49 pmHNL - ONT
Nonstop5h 34mAlaska Airlines
Mon 12/157:00 amONT - HNL
Nonstop6h 13mAlaska Airlines
Deal found 10/30$348
This Jettzy deal was found by Cheapflights users on 10/29. 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 Jettzy is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/302:44 pmHNL - ONT
Nonstop5h 24mHawaiian Airlines
Thu 1/88:13 amONT - HNL
Nonstop6h 16mHawaiian Airlines
Deal found 10/29$352
This Cheapflightsfares deal was found by Cheapflights users on 10/29. 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 Cheapflightsfares 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
Mon 12/87:00 amONT - HNL
Nonstop6h 13mAlaska Airlines
Deal found 10/29$356
This lastminute.com deal was found by Cheapflights users on 10/29. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/209:40 amHNL - ONT
Nonstop5h 34mMultiple Airlines
Wed 11/267:50 amONT - HNL
Nonstop6h 08mMultiple Airlines
Deal found 10/29$357
This Alaska Airlines deal was found by Cheapflights users on 10/29. 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.
Thu 11/209:40 amHNL - ONT
Nonstop5h 34mAlaska Airlines
Wed 11/267:50 amONT - HNL
Nonstop6h 08mAlaska Airlines
Deal found 10/29$360

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 October 30, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$318
(Alaska Airlines)

One-way from

$148
(Netflights)

Popular in

June

Cheapest in

February

Average price

$392

Good round-trip deal

$567 or less

Good one-way deal

$249 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. 17% potential increase in price ($79 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 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 October 30, 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

Thu 12/4

11:23 pm-11:13 am

1 stop9h 50m

Ontario

Mon 12/8

6:00 am-8:29 pm

2 stops16h 29m

$342

HonoluluOntario

HNL - ONT

HNLONT

Honolulu

Mon 1/26

2:54 pm-10:28 pm

Nonstop5h 34m

Ontario

Fri 1/30

8:13 am-12:29 pm

Nonstop6h 16m

$348

HonoluluOntario

HNL - ONT

HNLONT

Honolulu

Wed 11/19

9:40 am-5:14 pm

Nonstop5h 34m

Ontario

Wed 12/10

7:00 am-11:13 am

Nonstop6h 13m

$360

HonoluluOntario

HNL - ONT

HNLONT

Honolulu

Fri 12/5

12:49 pm-8:23 pm

Nonstop5h 34m

Ontario

Wed 12/10

7:00 am-11:13 am

Nonstop6h 13m

$388

HonoluluOntario

HNL - ONT

HNLONT

Honolulu

Tue 12/23

11:50 pm-10:01 am

1 stop8h 11m

Ontario

Thu 1/1

8:11 am-5:29 pm

2 stops11h 18m

$433

HonoluluOntario

HNL - ONT

HNLONT

Honolulu

Mon 11/3

9:40 am-5:14 pm

Nonstop5h 34m

Ontario

Tue 12/2

7:00 am-11:13 am

Nonstop6h 13m

$447

HonoluluOntario

HNL - ONT

HNLONT

Honolulu

Thu 11/20

9:40 am-5:14 pm

Nonstop5h 34m

Ontario

Wed 11/26

7:50 am-11:58 am

Nonstop6h 08m

$448

HonoluluOntario

HNL - ONT

HNLONT

Honolulu

Thu 11/20

9:40 am-5:14 pm

Nonstop5h 34m

Ontario

Mon 11/24

7:50 am-11:58 am

Nonstop6h 08m

$448

HonoluluOntario

HNL - ONT

HNLONT

Honolulu

Tue 1/6

2:44 pm-10:08 pm

Nonstop5h 24m

Ontario

Mon 1/12

11:53 am-10:08 pm

1 stop12h 15m

$458

HonoluluOntario

HNL - ONT

HNLONT

Honolulu

Wed 11/5

9:00 am-8:53 pm

1 stop9h 53m

Ontario

Fri 11/7

9:47 am-1:50 pm

Nonstop6h 03m

$468

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/30

Showing 1-10 of 21 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, January is the cheapest month in which you can book a flight from O'ahu to Ontario (average of $128). 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 October 30, 2025.

It’s typically best to fly out from O'ahu to Ontario in the evening. Doing so could potentially save you 15% 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 October 30, 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
11,220 reviews

Comfort

7.8

Boarding

8.1

Food

7.1

Overall

8.0

Entertainment

7.0

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
11,220 reviews
Alaska Airlines
8.0
Very good
11,220 reviews

Comfort

7.8

Boarding

8.1

Food

7.1

Overall

8.0

Entertainment

7.0

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
4,243 reviews
Alaska Airlines
8.0
Very good
11,220 reviews

Comfort

7.8

Boarding

8.1

Food

7.1

Overall

8.0

Entertainment

7.0

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
2,798 reviews
Alaska Airlines
8.0
Very good
11,220 reviews

Comfort

7.8

Boarding

8.1

Food

7.1

Overall

8.0

Entertainment

7.0

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
8,996 reviews
Alaska Airlines
8.0
Very good
11,220 reviews

Comfort

7.8

Boarding

8.1

Food

7.1

Overall

8.0

Entertainment

7.0

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
11,034 reviews
Alaska Airlines
8.0
Very good
11,220 reviews

Comfort

7.8

Boarding

8.1

Food

7.1

Overall

8.0

Entertainment

7.0

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 15 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?

    Delta, Alaska Airlines, and United Airlines can get you from O'ahu to Ontario in just under 5h 34m. Your travel time can differ by up to 4h 16m. There are 2598 mi between O'ahu and Ontario. This flight may include one or multiple stops.

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

    The cheapest flight price from O'ahu to Ontario is $172. On average you can expect to pay $468. The most popular route, (Honolulu - Ontario), can usually be booked for $318.

  • 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 $128). 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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$238Average$586FlexibilityNo cancel feeOn-time71%
Hawaiian AirlinesCheapest$246Average$441FlexibilityNo cancel feeOn-time85%
United AirlinesCheapest$296Average$518FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$318Average$528FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$497Average$623FlexibilityNo cancel feeOn-time63%

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