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).

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

When flying from Alaska to Islip, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What airport do you fly into for flights to Islip from Alaska?

Islip Long Island (ISP), located 7.2 mi from the city center, is the airport you fly into when you book flights from Alaska to Islip.

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

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

How can I find direct flights from Alaska to Islip?

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

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

Yes. Cheapflights offers flight deals from Alaska 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.

$416+ Cheap Flights from Alaska to Islip

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2. Select your favorite providers

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Cheap flight deals from Alaska to Islip

Popular in	December
Cheapest in	September
Average price	$526

Highest demand for flights based on searches. 18% potential increase in price ($160 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease ($30 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in September 2025

Search Deals

Find flight deals from Alaska to Islip

One-way flights from Alaska to Islip
Search for one-way flight options from Alaska to Islip. Find affordable one-way fares based on user searches. Data last updated September 17, 2025.

Tue 10/215:47 pmANC - ISP

2 stops13h 17mMultiple Airlines

Deal found 9/17

$416

Thu 12/45:24 pmANC - ISP

2 stops13h 40mMultiple Airlines

Deal found 9/17

$511

Wed 10/295:35 pmANC - ISP

2 stops13h 29mMultiple Airlines

Deal found 9/14

$522

Mon 9/225:59 pmANC - ISP

2 stops12h 59mMultiple Airlines

Deal found 9/17

$567

Sat 12/62:26 amANC - ISP

2 stops13h 19mMultiple Airlines

Deal found 9/17

$599

Mon 10/65:47 pmANC - ISP

2 stops13h 11mMultiple Airlines

Deal found 9/16

$605

Sat 9/272:45 amANC - ISP

2 stops13h 16mMultiple Airlines

Deal found 9/14

$671

Fri 10/35:59 pmANC - ISP

2 stops12h 59mMultiple Airlines

Deal found 9/15

$674

Wed 10/85:47 pmANC - ISP

2 stops13h 11mMultiple Airlines

Deal found 9/17

$755

Tue 12/235:25 pmANC - ISP

2 stops13h 39mMultiple Airlines

Deal found 9/16

$757

Mon 10/135:47 pmANC - ISP

2 stops13h 11mMultiple Airlines

Deal found 9/15

$810

Fly from

Fly to

Route

Depart

Return

Price

AnchorageIslip

ANC - ISP

ANCISP

Anchorage

Tue 10/21

5:47 pm-11:04 am

2 stops13h 17m

$416

AnchorageIslip

ANC - ISP

ANCISP

Anchorage

Sun 12/7

5:24 pm-11:04 am

2 stops13h 40m

$511

AnchorageIslip

ANC - ISP

ANCISP

Anchorage

Thu 12/4

5:24 pm-11:04 am

2 stops13h 40m

$511

AnchorageIslip

ANC - ISP

ANCISP

Anchorage

Wed 10/29

5:35 pm-11:04 am

2 stops13h 29m

$522

AnchorageIslip

ANC - ISP

ANCISP

Anchorage

Mon 9/22

5:59 pm-10:58 am

2 stops12h 59m

$567

AnchorageIslip

ANC - ISP

ANCISP

Anchorage

Mon 10/6

5:47 pm-10:58 am

2 stops13h 11m

$605

AnchorageIslip

ANC - ISP

ANCISP

Anchorage

Sat 9/27

2:45 am-8:01 pm

2 stops13h 16m

$671

AnchorageIslip

ANC - ISP

ANCISP

Anchorage

Sat 10/11

2:26 am-8:01 pm

2 stops13h 35m

$755

AnchorageIslip

ANC - ISP

ANCISP

Anchorage

Wed 10/8

5:47 pm-10:58 am

2 stops13h 11m

$755

AnchorageIslip

ANC - ISP

ANCISP

Anchorage

Tue 12/23

5:25 pm-11:04 am

2 stops13h 39m

$757

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/17

Best time to book a flight from Alaska to Islip

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

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

Currently, January is the cheapest month in which you can book a flight from Alaska to Islip (average of $108). Flying from Alaska 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

What airport do you fly into for flights to Islip from Alaska?
Islip Long Island (ISP), located 7.2 mi from the city center, is the airport you fly into when you book flights from Alaska to Islip.
Can I find deals for flights from Alaska to Islip that include hotel bookings?
Yes. In addition to deals on Alaska to Islip flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Alaska to Islip?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Alaska to Islip.
Can I find deals for business class flights from Alaska to Islip?
Yes. Cheapflights offers flight deals from Alaska 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 Alaska to Islip?
Currently, January is the cheapest month in which you can book a flight from Alaska to Islip (average of $108). Flying from Alaska 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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$416+ Cheap flights from Alaska to Islip (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 10/21. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Alaska to Islip with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Alaska to Islip

Keep the following information in mind while searching for Alaska to Islip flight deals. Data was last updated September 17, 2025.

Popular in

Cheapest in

Average price

Find flight deals from Alaska to Islip

One-way flights from Alaska to IslipSearch for one-way flight options from Alaska to Islip. Find affordable one-way fares based on user searches. Data last updated September 17, 2025.

Search for one-way flight options from Alaska to Islip. Find affordable one-way fares based on user searches. Data last updated September 17, 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Alaska to Islip

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

Cheapflights Insights

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

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

Related info for your journey

Find useful and relevant information for your journey from Alaska to Islip. 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 into for flights to Islip from Alaska?

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

How can I find direct flights from Alaska to Islip?

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

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

Traveling to a place near Islip?

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Alternative routes for Alaska to Islip

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One-way flights from Alaska to Islip
Search for one-way flight options from Alaska to Islip. Find affordable one-way fares based on user searches. Data last updated September 17, 2025.