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$132+ 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 2/1. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — HNL
Nov 22 — Nov 291
Sat 11/22
Sat 11/29
1 adult, Economy
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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 October 23, 2025.

This Alaska Airlines deal was found by Cheapflights users on 10/22. 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.
Tue 12/26:00 amONT - HNL
1 stop10h 13mAlaska Airlines
Fri 12/512:49 pmHNL - ONT
Nonstop5h 34mAlaska Airlines
Deal found 10/22$392
This Alaska Airlines deal was found by Cheapflights users on 10/21. 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.
Tue 12/912:13 pmONT - HNL
1 stop11h 56mAlaska Airlines
Tue 12/169:33 pmHNL - ONT
1 stop11h 46mAlaska Airlines
Deal found 10/21$393
This Cheapflightsfares deal was found by Cheapflights users on 10/21. 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 11/139:47 amONT - HNL
Nonstop6h 03mAlaska Airlines
Thu 11/209:40 amHNL - ONT
Nonstop5h 34mAlaska Airlines
Deal found 10/21$394
This Alaska Airlines deal was found by Cheapflights users on 10/21. 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.
Tue 12/96:00 amONT - HNL
1 stop10h 13mAlaska Airlines
Mon 12/222:44 pmHNL - ONT
Nonstop5h 24mAlaska Airlines
Deal found 10/21$396
This Alaska Airlines deal was found by Cheapflights users on 10/21. 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 12/37:00 amONT - HNL
Nonstop6h 13mAlaska Airlines
Sat 12/612:49 pmHNL - ONT
Nonstop5h 34mAlaska Airlines
Deal found 10/21$397
This Alaska Airlines deal was found by Cheapflights users on 10/21. 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.
Tue 12/167:00 amONT - HNL
Nonstop6h 13mAlaska Airlines
Tue 12/232:44 pmHNL - ONT
Nonstop5h 24mAlaska Airlines
Deal found 10/21$398
This Delta deal was found by Cheapflights users on 10/23. 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 12/46:00 amONT - HNL
2 stops16h 29mDelta
Sun 12/711:15 pmHNL - ONT
1 stop11h 19mDelta
Deal found 10/23$399
This Delta deal was found by Cheapflights users on 10/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/16:00 amONT - HNL
1 stop11h 33mDelta
Thu 12/411:23 pmHNL - ONT
1 stop9h 50mDelta
Deal found 10/20$400
This Rumbo deal was found by Cheapflights users on 10/22. 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 Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/77:10 amONT - HNL
1 stop9h 38mHawaiian Airlines
Tue 12/162:09 pmHNL - ONT
Nonstop5h 34mHawaiian Airlines
Deal found 10/22$401
This Alaska Airlines deal was found by Cheapflights users on 10/21. 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 12/106:00 amONT - HNL
1 stop15h 05mAlaska Airlines
Mon 12/152:09 pmHNL - ONT
Nonstop5h 34mAlaska Airlines
Deal found 10/21$406
This Alaska Airlines deal was found by Cheapflights users on 10/21. 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.
Tue 11/119:47 amONT - HNL
Nonstop6h 03mAlaska Airlines
Fri 11/149:40 amHNL - ONT
Nonstop5h 34mAlaska Airlines
Deal found 10/21$407

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 October 23, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$392
(Alaska Airlines)

One-way from

$132
(Trip.com)

Popular in

June

Cheapest in

February

Average price

$370

Good round-trip deal

$429 or less

Good one-way deal

$222 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. 15% potential increase in price ($69 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 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 October 23, 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

Wed 12/3

7:00 am-11:13 am

Nonstop6h 13m

Honolulu

Sat 12/6

12:49 pm-8:23 pm

Nonstop5h 34m

$397

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Mon 11/24

7:50 am-11:58 am

Nonstop6h 08m

Honolulu

Wed 11/26

12:58 pm-8:31 pm

Nonstop5h 33m

$398

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Mon 2/23

11:00 am-9:00 pm

2 stops12h 00m

Honolulu

Fri 2/27

9:00 pm-9:30 am

1 stop10h 30m

$402

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Sun 4/19

9:50 am-12:45 pm

Nonstop5h 55m

Honolulu

Thu 4/23

2:30 pm-11:05 pm

Nonstop5h 35m

$416

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Mon 4/13

9:50 am-12:45 pm

Nonstop5h 55m

Honolulu

Wed 4/22

2:30 pm-11:05 pm

Nonstop5h 35m

$416

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Thu 2/5

6:00 am-8:33 pm

2 stops16h 33m

Honolulu

Mon 2/9

9:55 pm-4:19 pm

2 stops16h 24m

$428

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Mon 11/17

9:47 am-1:50 pm

Nonstop6h 03m

Honolulu

Sun 11/23

9:33 pm-9:55 am

1 stop10h 22m

$433

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Tue 11/18

11:59 am-8:04 pm

1 stop10h 05m

Honolulu

Sun 11/23

12:58 pm-8:31 pm

Nonstop5h 33m

$433

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Thu 1/29

6:00 am-8:33 pm

2 stops16h 33m

Honolulu

Mon 2/2

9:35 pm-12:34 pm

2 stops12h 59m

$437

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Sat 11/15

5:30 am-1:10 pm

1 stop9h 40m

Honolulu

Tue 11/18

9:25 pm-12:00 pm

2 stops12h 35m

$442

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/20

Showing 1-10 of 20 results
1
2

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, January is the cheapest month in which you can book a flight from Ontario to O'ahu (average of $132). Flying from Ontario to O'ahu in July is currently the most expensive (average of $266). 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 October 23, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 24% on flights from Ontario to O'ahu by exploring options for tickets in the afternoon.

What is the cheapest day to fly from Ontario to O'ahu?

Use this chart to determine the cheapest time to fly round-trip from Ontario to O'ahu. Price data was last updated on October 19, 2025.

Travelers seeking maximum savings on their Ontario to O'ahu flight should consider departing on Sunday evenings when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 October 23, 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
11,155 reviews

Comfort

7.8

Entertainment

7.0

Boarding

8.1

Crew

8.5

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Alaska Airlines
8.0
Very good
11,155 reviews
Alaska Airlines
8.0
Very good
11,155 reviews

Comfort

7.8

Entertainment

7.0

Boarding

8.1

Crew

8.5

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Southwest
8.0
Very good
4,237 reviews
Alaska Airlines
8.0
Very good
11,155 reviews

Comfort

7.8

Entertainment

7.0

Boarding

8.1

Crew

8.5

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Hawaiian Airlines
7.8
Good
2,788 reviews
Alaska Airlines
8.0
Very good
11,155 reviews

Comfort

7.8

Entertainment

7.0

Boarding

8.1

Crew

8.5

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
United Airlines
7.4
Good
8,991 reviews
Alaska Airlines
8.0
Very good
11,155 reviews

Comfort

7.8

Entertainment

7.0

Boarding

8.1

Crew

8.5

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
American Airlines
7.2
Good
11,028 reviews
Alaska Airlines
8.0
Very good
11,155 reviews

Comfort

7.8

Entertainment

7.0

Boarding

8.1

Crew

8.5

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.

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 32 times in the past calendar month.

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

    Alaska Airlines and Southwest can get you from Ontario to O'ahu in just under 6h 13m. Your travel time can differ by up to 5h 47m. 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 flights from Ontario to O'ahu?

    On average you can expect to pay $610 for a flight from Ontario to O'ahu. The cheapest flight overall is $199 while the most popular route, (Ontario - Honolulu) is currently priced at $268.

  • 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, January is the cheapest month in which you can book a flight from Ontario to O'ahu (average of $132). Flying from Ontario to O'ahu in July is currently the most expensive (average of $266). 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.

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Alternative routes for Ontario to O'ahu

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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 October 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$158Average$337FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$239Average$509FlexibilityNo cancel feeOn-time69%
Hawaiian AirlinesCheapest$272Average$454FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$318Average$502FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$357Average$635FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$367Average$588FlexibilityNo cancel feeOn-time63%

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