In terms of precipitation, rainfall in Islip ranges from 3.3 - 4.4 inches per month. March is typically the wettest month, when rainfall can reach 4.4 in. February is typically the driest time to visit Islip when rainfall is around 3.3 in.

If weather is an important factor for your trip to Islip, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

How far in advance should I book a flight from Honolulu to Islip?

Find a great deal and save up to 59% by booking at least 47 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Honolulu to Islip within the next two weeks, with the cheapest ticket starting at $698.

What is the cheapest month to fly from Honolulu to Islip?

Flights from Honolulu to Islip lean towards being more expensive in July. Prices are generally better when you fly from Honolulu to Islip in March, with the cheapest ticket starting at $369.

What is the cheapest time of day to fly from HNL to ISP?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Honolulu to Islip as you normally would.

Can I find deals for flights from Honolulu to Islip that include hotel bookings?

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

How can I find direct flights from Honolulu to Islip?

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

Can I find deals for business class flights from Honolulu to Islip?

Yes. Cheapflights offers flight deals from Honolulu to Islip by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$519+ Cheap Flights from Honolulu to Islip

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Cheap flight deals from Honolulu to Islip

Round-trip from	$1,265 (KAYAK)
One-way from	$519 (Cheapflightsfares)
Popular in	July
Cheapest in	March
Average price	$682

From Honolulu to Islip Long Island

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One-way flight from Honolulu to Islip Long Island

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Highest demand for flights based on searches. 18% potential increase in price ($167 potential increase over avg. RT price).

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Cheapest flight prices on average. 2% potential price decrease ($21 potential savings vs. average RT price).

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Average for round-trip flights in September 2025

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Find flight deals from Honolulu to Islip

Cheapest flights from Honolulu to Islip
Explore the most affordable flight options available from Honolulu to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 9, 2025.

Thu 10/309:53 pmHNL - ISP

2 stops33h 31mMultiple Airlines

Thu 11/62:19 pmISP - HNL

2 stops34h 45mMultiple Airlines

Deal found 9/9

$1,265

Best flights from Honolulu to Islip
Discover carefully curated flight deals from Honolulu to Islip that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 9, 2025.

Thu 10/309:53 pmHNL - ISP

2 stops33h 31mMultiple Airlines

Thu 11/62:19 pmISP - HNL

2 stops34h 45mMultiple Airlines

Deal found 9/9

$1,265

Last-minute flights from Honolulu to Islip
Discover last-minute flight deals from Honolulu to Islip. Data last updated September 9, 2025 and is based on user searches.

Thu 10/309:53 pmHNL - ISP

2 stops33h 31mMultiple Airlines

Thu 11/62:19 pmISP - HNL

2 stops34h 45mMultiple Airlines

Deal found 9/9

$1,265

One-way flights from Honolulu to Islip
Search for one-way flight options from Honolulu to Islip. Find affordable one-way fares based on user searches. Data last updated September 9, 2025.

Mon 9/159:41 pmHNL - ISP

2 stops16h 20mMultiple Airlines

Deal found 9/6

$519

Sun 9/141:10 pmHNL - ISP

2 stops15h 48mMultiple Airlines

Deal found 9/7

$528

Tue 9/161:10 pmHNL - ISP

2 stops15h 48mMultiple Airlines

Deal found 9/6

$575

Wed 12/102:09 pmHNL - ISP

2 stops15h 49mMultiple Airlines

Deal found 9/8

$580

Fri 12/122:09 pmHNL - ISP

2 stops15h 49mMultiple Airlines

Deal found 9/8

$608

Wed 11/1211:55 pmHNL - ISP

2 stops15h 06mMultiple Airlines

Deal found 9/7

$627

Wed 12/32:09 pmHNL - ISP

2 stops15h 49mMultiple Airlines

Deal found 9/9

$630

Mon 11/102:15 pmHNL - ISP

2 stops15h 43mMultiple Airlines

Deal found 9/7

$650

Fri 11/711:55 pmHNL - ISP

2 stops15h 06mMultiple Airlines

Deal found 9/9

$656

Fri 12/52:09 pmHNL - ISP

2 stops15h 49mMultiple Airlines

Deal found 9/9

$660

Fly from

Fly to

Route

Depart

Return

Price

HonoluluIslip

HNL - ISP

HNLISP

Honolulu

Thu 10/30

9:53 pm-1:24 pm

2 stops33h 31m

Islip Long Island

Thu 11/6

2:19 pm-8:04 pm

2 stops34h 45m

$1,265

HonoluluIslip

HNL - ISP

HNLISP

Honolulu

Sun 9/14

1:10 pm-10:58 am

2 stops15h 48m

$528

HonoluluIslip

HNL - ISP

HNLISP

Honolulu

Thu 11/13

11:55 pm-8:01 pm

2 stops15h 06m

$580

HonoluluIslip

HNL - ISP

HNLISP

Honolulu

Mon 12/15

2:20 pm-10:58 am

2 stops15h 38m

$580

HonoluluIslip

HNL - ISP

HNLISP

Honolulu

Thu 12/11

2:09 pm-10:58 am

2 stops15h 49m

$580

HonoluluIslip

HNL - ISP

HNLISP

Honolulu

Wed 12/10

11:59 pm-8:01 pm

2 stops15h 02m

$580

HonoluluIslip

HNL - ISP

HNLISP

Honolulu

Mon 12/8

2:09 pm-10:58 am

2 stops15h 49m

$580

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/7

Best time to book a flight from Honolulu to Islip

Have a flexible travel schedule? Discover the best time to fly to Islip from Honolulu 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 Honolulu to Islip

What is the cheapest month to book a flight from Honolulu to Islip?

Currently, January is the cheapest month in which you can book a flight from Honolulu to Islip (average of $108). Flying from Honolulu to Islip in November is currently the most expensive (average of $213). 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

Can I find deals for flights from Honolulu to Islip that include hotel bookings?
Yes. In addition to deals on Honolulu to Islip flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Honolulu to Islip?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Honolulu to Islip.
Can I find deals for business class flights from Honolulu to Islip?
Yes. Cheapflights offers flight deals from Honolulu to Islip 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 Honolulu to Islip?
Currently, January is the cheapest month in which you can book a flight from Honolulu to Islip (average of $108). Flying from Honolulu to Islip in November is currently the most expensive (average of $213). 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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$519+ Cheap flights from Honolulu to Islip (HNL - ISP)

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.

Find cheap flights from Honolulu to Islip with Cheapflights

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Find flight deals from Honolulu to Islip

Cheapest flights from Honolulu to IslipExplore the most affordable flight options available from Honolulu to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 9, 2025.

Explore the most affordable flight options available from Honolulu to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 9, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Honolulu to Islip that are best for you.

Best time to book a flight from Honolulu to Islip

Have a flexible travel schedule? Discover the best time to fly to Islip from Honolulu with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Honolulu to Islip

What is the cheapest month to book a flight from Honolulu to Islip?

Related info for your journey

Find useful and relevant information for your journey from Honolulu to Islip. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

Can I find deals for flights from Honolulu to Islip that include hotel bookings?

How can I find direct flights from Honolulu to Islip?

Can I find deals for business class flights from Honolulu to Islip?

What is the cheapest month to book a flight from Honolulu to Islip?

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Cheapest flights from Honolulu to Islip
Explore the most affordable flight options available from Honolulu to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 9, 2025.