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$159+ 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 9/15. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — HNL
May 17 — May 241
Sat 5/17
Sat 5/24
1 adult, Economy
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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 May 12, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$337
(Delta)

One-way from

$199
(Alaska Airlines)

Popular in

June

Cheapest in

January

Average price

$357

Good round-trip deal

$417 or less

Good one-way deal

$214 or less
Provider with most accurate pricing for Los Angeles-Honolulu flight deals.
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From Ontario to O'ahu
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One-way flight from Ontario to O'ahu
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Highest demand for flights based on searches. 16% potential increase in price ($69 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 May 2025
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Price to beat on a round-trip flight from Ontario to O'ahu.
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Price to beat on a one-way flight from Ontario to O'ahu.
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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 May 12, 2025.

This Delta deal was found by Cheapflights users on 5/11. 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 11/117:00 amONT - HNL
1 stop15h 20mDelta
Wed 11/129:55 pmHNL - ONT
1 stop10h 55mDelta
Deal found 5/11$336
This Trip.com deal was found by Cheapflights users on 5/12. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/289:50 amONT - HNL
Nonstop5h 55mHawaiian Airlines
Wed 11/52:20 pmHNL - ONT
Nonstop5h 35mHawaiian Airlines
Deal found 5/12$339
This flugladen.de deal was found by Cheapflights users on 5/11. 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 8/72:21 pmONT - HNL
1 stop12h 13mAlaska Airlines
Thu 9/412:38 pmHNL - ONT
Nonstop5h 32mAlaska Airlines
Deal found 5/11$344
This United Airlines deal was found by Cheapflights users on 5/12. 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 9/26:00 amONT - HNL
2 stops13h 29mUnited Airlines
Tue 9/309:40 pmHNL - ONT
2 stops11h 33mUnited Airlines
Deal found 5/12$364
This American Airlines deal was found by Cheapflights users on 5/12. 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 8/206:17 amONT - HNL
1 stop9h 05mAmerican Airlines
Sun 8/2411:04 pmHNL - ONT
1 stop16h 13mAmerican Airlines
Deal found 5/12$423

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 May 12, 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 9/3

11:29 am-7:12 pm

1 stop10h 43m

Honolulu

Mon 9/22

8:55 pm-10:50 am

1 stop10h 55m

$337

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Tue 10/28

9:50 am-12:45 pm

Nonstop5h 55m

Honolulu

Wed 11/5

2:20 pm-9:55 pm

Nonstop5h 35m

$339

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Thu 8/7

2:21 pm-11:34 pm

1 stop12h 13m

Honolulu

Thu 9/4

12:38 pm-9:10 pm

Nonstop5h 32m

$344

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Tue 9/2

6:00 am-4:29 pm

2 stops13h 29m

Honolulu

Tue 9/30

9:40 pm-12:13 pm

2 stops11h 33m

$364

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Wed 8/20

6:17 am-12:22 pm

1 stop9h 05m

Honolulu

Sun 8/24

11:04 pm-6:17 pm

1 stop16h 13m

$423

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Mon 9/15

10:09 am-1:10 pm

Nonstop6h 01m

$159

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Thu 9/18

11:29 am-7:20 pm

1 stop10h 51m

$168

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Sun 9/21

10:09 am-1:10 pm

Nonstop6h 01m

$181

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Tue 7/15

1:19 pm-7:09 pm

1 stop8h 50m

$219

OntarioHonolulu

ONT - HNL

ONTHNL

Ontario

Wed 7/23

7:05 pm-12:29 pm

1 stop20h 24m

$233

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/11

Showing 1-10 of 12 results
1
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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, November is the cheapest month in which you can book a flight from Ontario to O'ahu (average of $469). Flying from Ontario to O'ahu in June is currently the most expensive (average of $687). 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 May 12, 2025.

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.

Rainfall in O'ahu by month

Plan your trip to O'ahu by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in O'ahu ranges from 0.3 - 3.2 inches per month. December is typically the wettest month, when rainfall can reach 3.2 in. June is typically the driest time to visit O'ahu when rainfall is around 0.3 in.

Temperature in O'ahu by month

Plan your trip to O'ahu by taking into account the average temperature totals by month.

If weather is an important factor for your trip to O'ahu, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 73.4 F).

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 May 12, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest and Delta from Ontario to O'ahu. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Boarding

8.1

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Boarding

8.1

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,290 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Boarding

8.1

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Boarding

8.1

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,431 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Boarding

8.1

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,724 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Boarding

8.1

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 22 times in the past calendar month.

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

    To fly one-way, consider booking your trip with Alaska Airlines, which is currently one of the cheapest options available, starting at $199. United Airlines flights start at $214 while deals on Hawaiian Airlines start at $220 one-way.

  • What are the most reliable airlines from Ontario to O'ahu?

    Consider American Airlines (87%), Alaska Airlines (87%) or JetBlue (87%) when booking your flight. These represent the most reliable airlines when flying from Ontario to O'ahu.

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

    On average you can expect to pay $408 for a flight from Ontario to O'ahu. The cheapest flight overall is $159 while the most popular route, (Ontario - Honolulu) is currently priced at $318.

  • 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, November is the cheapest month in which you can book a flight from Ontario to O'ahu (average of $469). Flying from Ontario to O'ahu in June is currently the most expensive (average of $687). 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

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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 May 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$158Average$353FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$239Average$525FlexibilityNo cancel feeOn-time69%
Hawaiian AirlinesCheapest$261Average$444FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$308Average$484FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$331Average$637FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$397Average$589FlexibilityNo cancel feeOn-time63%

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