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$774+ Cheap flights from Islip, NY (ISP) to O'ahu

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/20. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — HNL
Jan 22 — Jan 291
Thu 1/22
Thu 1/29
1 adult, Economy
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Cheap flight deals from Islip to O'ahu

Cheapest flights from Islip to O'ahu
Explore the most affordable flight options available from Islip to O'ahu. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 23, 2025.

This Southwest deal was found by Cheapflights users on 12/21. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/235:40 amISP - HNL
2 stops20h 20mSouthwest
Sat 12/279:25 pmHNL - ISP
2 stops14h 50mSouthwest
Deal found 12/21$1,485

Find flight deals from Islip to O'ahu

Keep the following information in mind while searching for Islip to O'ahu flight deals. Data was last updated December 23, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$774
(Southwest)

Popular in

July

Cheapest in

September

Average price

$933
Provider with most accurate pricing for New York (NYC)-Honolulu flight deals.
Search Deals
Provider most trusted by Cheapflights users for New York (NYC)-Honolulu flights.
Search Deals
From Islip Long Island to O'ahu
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($166 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Islip 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 December 23, 2025.
Use the filters below to find and compare flights from Islip to O'ahu that are best for you.

Fly from

Islip

Fly to

O'ahu

Route

Depart

Return

Price

IslipHonolulu

ISP - HNL

ISPHNL

Islip Long Island

Tue 1/20

6:00 am-9:00 pm

2 stops20h 00m

Honolulu

Tue 1/27

8:05 am-11:55 am

2 stops22h 50m

$774

IslipHonolulu

ISP - HNL

ISPHNL

Islip Long Island

Sun 1/18

6:00 am-9:00 pm

2 stops20h 00m

Honolulu

Sun 1/25

9:00 pm-9:55 pm

2 stops19h 55m

$799

IslipHonolulu

ISP - HNL

ISPHNL

Islip Long Island

Fri 1/9

6:00 am-9:00 pm

2 stops20h 00m

Honolulu

Fri 1/16

9:55 pm-9:50 pm

2 stops18h 55m

$799

IslipHonolulu

ISP - HNL

ISPHNL

Islip Long Island

Sun 4/12

6:05 am-9:05 pm

2 stops21h 00m

Honolulu

Sat 4/25

1:00 pm-11:10 am

2 stops16h 10m

$844

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/21

Best time to book a flight from Islip to O'ahu

Have a flexible travel schedule? Discover the best time to fly to O'ahu from Islip 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 Islip to O'ahu

What is the cheapest month to book a flight from Islip, New York to O'ahu?

Currently, March is the cheapest month in which you can book a flight from Islip, New York to O'ahu (average of $360). Flying from Islip, New York to O'ahu in July is currently the most expensive (average of $569). 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.

Related info for your journey

Find useful and relevant information for your journey from Islip 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 Islip to O'ahu?

    Most people fly from Islip Long Island (ISP) if they book a flight from Islip to O'ahu. Islip Long Island is conveniently located just 7.2 mi from Islip’s city center.

  • How long is the flight from Islip, New York to O'ahu?

    There are many flights that can get you from Islip, New York to O'ahu in 20h. Fly via Southwest to get the fastest option. Airlines will cover a distance of 5004 mi.

  • Can I find deals for flights from Islip to O'ahu that include hotel bookings?

    Yes. In addition to deals on Islip to O'ahu flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Islip to O'ahu?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Islip to O'ahu.

  • Can I find deals for business class flights from Islip to O'ahu?

    Yes. Cheapflights offers flight deals from Islip 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 Islip, New York to O'ahu?

    Currently, March is the cheapest month in which you can book a flight from Islip, New York to O'ahu (average of $360). Flying from Islip, New York to O'ahu in July is currently the most expensive (average of $569). 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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