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$149+ 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 2/9. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — HNL
Feb 19 — Feb 261
Thu 2/19
Thu 2/26
1 adult, Economy
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Cheap 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 January 20, 2026.

This Alaska Airlines deal was found by Cheapflights users on 1/19. 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.
Mon 2/238:41 am
ONT
-
HNL
Nonstop6h 04m
Alaska Airlines
Thu 3/52:40 pm
HNL
-
ONT
Nonstop5h 35m
Alaska Airlines
Deal found 1/19$312
This American Airlines deal was found by Cheapflights users on 1/18. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/2512:18 pm
ONT
-
HNL
1 stop8h 57m
American Airlines
Wed 3/411:00 pm
HNL
-
ONT
1 stop7h 48m
American Airlines
Deal found 1/18$316
This Kiwi.com deal was found by Cheapflights users on 1/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/412:02 pm
ONT
-
HNL
1 stop10h 01m
Multiple Airlines
Tue 3/1012:20 pm
HNL
-
ONT
Nonstop5h 35m
Multiple Airlines
Deal found 1/18$319
This Alaska Airlines deal was found by Cheapflights users on 1/18. 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.
Sun 2/228:41 am
ONT
-
HNL
Nonstop6h 04m
Alaska Airlines
Wed 3/42:40 pm
HNL
-
ONT
Nonstop5h 35m
Alaska Airlines
Deal found 1/18$320
This Alaska Airlines deal was found by Cheapflights users on 1/19. 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 2/2512:02 pm
ONT
-
HNL
1 stop10h 01m
Multiple Airlines
Wed 3/42:40 pm
HNL
-
ONT
Nonstop5h 35m
Multiple Airlines
Deal found 1/19$321
This United Airlines deal was found by Cheapflights users on 1/19. 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.
Tue 3/36:10 am
ONT
-
HNL
1 stop11h 04m
United Airlines
Mon 3/97:00 am
HNL
-
ONT
2 stops12h 57m
United Airlines
Deal found 1/19$322
This Kiwi.com deal was found by Cheapflights users on 1/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/283:26 pm
ONT
-
HNL
1 stop10h 03m
Multiple Airlines
Tue 5/59:09 pm
HNL
-
ONT
1 stop9h 36m
Multiple Airlines
Deal found 1/18$323
This American Airlines deal was found by Cheapflights users on 1/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/2212:18 pm
ONT
-
HNL
1 stop8h 57m
American Airlines
Thu 2/269:44 pm
HNL
-
ONT
1 stop9h 05m
American Airlines
Deal found 1/19$324
This Kiwi.com deal was found by Cheapflights users on 1/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/312:02 pm
ONT
-
HNL
1 stop12h 04m
Multiple Airlines
Mon 3/912:20 pm
HNL
-
ONT
Nonstop5h 35m
Multiple Airlines
Deal found 1/19$325
This Kiwi.com deal was found by Cheapflights users on 1/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/198:32 am
ONT
-
HNL
Nonstop6h 03m
Multiple Airlines
Mon 4/279:09 pm
HNL
-
ONT
1 stop9h 36m
Multiple Airlines
Deal found 1/17$326
This Alaska Airlines deal was found by Cheapflights users on 1/20. 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 3/48:41 am
ONT
-
HNL
Nonstop6h 04m
Alaska Airlines
Tue 3/1012:20 pm
HNL
-
ONT
Nonstop5h 35m
Alaska Airlines
Deal found 1/20$327
This American Airlines deal was found by Cheapflights users on 1/18. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/289:24 am
ONT
-
HNL
1 stop11h 41m
American Airlines
Tue 5/59:00 pm
HNL
-
ONT
1 stop8h 39m
American Airlines
Deal found 1/18$331

Find 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 January 20, 2026.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$312
(Alaska Airlines)

One-way from

$149
(Alaska Airlines)

Popular in

June

Cheapest in

February

Average price

$327

Good round-trip deal

$371 or less

Good one-way deal

$201 or less
Provider with most accurate pricing for Los Angeles-Honolulu flight deals.
Search Deals
Provider most trusted by Cheapflights users for Los Angeles-Honolulu flights.
Search Deals
From Ontario to O'ahu
Search Deals
One-way flight from Ontario to O'ahu
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($61 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 January 2026
Search Deals
Price to beat on a round-trip flight from Ontario to O'ahu.
Search Deals
Price to beat on a one-way flight from Ontario to O'ahu.
Search Deals

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 January 20, 2026.
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

Mon 3/9

11:59 am-8:51 pm

1 stop11h 52m

Honolulu

Tue 3/17

10:40 pm-11:18 am

1 stop9h 38m

$316

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Mon 2/23

8:41 am-12:45 pm

Nonstop6h 04m

Honolulu

Thu 2/26

2:40 pm-10:15 pm

Nonstop5h 35m

$327

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Sat 4/18

8:32 am-11:35 am

Nonstop6h 03m

Honolulu

Mon 4/20

2:25 pm-10:59 pm

Nonstop5h 34m

$327

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Tue 4/7

8:32 am-11:35 am

Nonstop6h 03m

Honolulu

Thu 4/16

2:25 pm-10:59 pm

Nonstop5h 34m

$346

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Tue 3/3

8:41 am-12:45 pm

Nonstop6h 04m

Honolulu

Mon 3/9

12:20 pm-8:55 pm

Nonstop5h 35m

$346

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Mon 4/13

8:32 am-11:35 am

Nonstop6h 03m

Honolulu

Mon 4/20

2:25 pm-10:59 pm

Nonstop5h 34m

$346

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Tue 4/7

10:33 am-6:54 pm

1 stop11h 21m

Honolulu

Thu 4/16

2:25 pm-10:59 pm

Nonstop5h 34m

$351

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Sat 4/18

6:00 am-9:20 pm

2 stops18h 20m

Honolulu

Mon 4/27

10:45 pm-11:13 am

1 stop9h 28m

$352

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Fri 2/20

6:00 am-9:54 pm

2 stops17h 54m

Honolulu

Wed 2/25

11:37 pm-4:02 pm

2 stops14h 25m

$357

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Mon 2/9

6:00 am-4:20 pm

1 stop12h 20m

Honolulu

Fri 2/13

9:00 am-10:20 pm

1 stop11h 20m

$360

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/18

Showing 1-10 of 23 results
1
2
3

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, February is the cheapest month in which you can book a flight from Ontario to O'ahu (average of $159). Flying from Ontario to O'ahu in July is currently the most expensive (average of $268). 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 January 20, 2026.

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 January 20, 2026.

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 January 20, 2026.
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
11,764 reviews

Crew

8.5

Boarding

8.1

Overall

8.0

Entertainment

7.0

Food

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Alaska Airlines
8.0
Very good
11,764 reviews
Alaska Airlines
8.0
Very good
11,764 reviews

Crew

8.5

Boarding

8.1

Overall

8.0

Entertainment

7.0

Food

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Southwest
8.0
Very good
4,266 reviews
Alaska Airlines
8.0
Very good
11,764 reviews

Crew

8.5

Boarding

8.1

Overall

8.0

Entertainment

7.0

Food

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Hawaiian Airlines
7.8
Good
2,829 reviews
Alaska Airlines
8.0
Very good
11,764 reviews

Crew

8.5

Boarding

8.1

Overall

8.0

Entertainment

7.0

Food

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
United Airlines
7.4
Good
9,189 reviews
Alaska Airlines
8.0
Very good
11,764 reviews

Crew

8.5

Boarding

8.1

Overall

8.0

Entertainment

7.0

Food

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
American Airlines
7.2
Good
11,169 reviews
Alaska Airlines
8.0
Very good
11,764 reviews

Crew

8.5

Boarding

8.1

Overall

8.0

Entertainment

7.0

Food

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading

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 47 times in the past calendar month.

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

    Delta and Alaska Airlines can get you from Ontario to O'ahu in just under 6h 04m. Your travel time can differ by up to 5h 48m. 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 American Airlines, which is currently one of the cheapest options available, starting at $125. United Airlines flights start at $151 while deals on Alaska Airlines start at $159 one-way.

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

    On average you can expect to pay $860 for a flight from Ontario to O'ahu. The cheapest flight overall is $163 while the most popular route, (Ontario - Honolulu) is currently priced at $312.

  • 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, February is the cheapest month in which you can book a flight from Ontario to O'ahu (average of $159). Flying from Ontario to O'ahu in July is currently the most expensive (average of $268). 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 January 20, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$158Average$273FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$208Average$497FlexibilityNo cancel feeOn-time69%
Hawaiian AirlinesCheapest$311Average$507FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$317Average$501FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$357Average$590FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$397Average$583FlexibilityNo cancel feeOn-time63%

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