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Alaska

$672+ Cheap flights from Islip (ISP) to Alaska

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 9/30. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — ANC
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheap flight deals from Islip to Alaska

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

Round-trip from

$1,335
(Expedia)

One-way from

$672
(Cheapflightsfares)

Popular in

March

Cheapest in

October

Average price

$592
From Islip Long Island to Alaska
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One-way flight from Islip Long Island to Alaska
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Highest demand for flights based on searches. 3% potential increase in price ($25 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($10 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 Islip to Alaska

Cheapest flights from Islip to Alaska
Explore the most affordable flight options available from Islip to Alaska. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 9/16. 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.
Tue 9/164:33 pmISP - ANC
2 stops14h 14mMultiple Airlines
Thu 9/185:59 pmANC - ISP
2 stops12h 59mMultiple Airlines
Deal found 9/16$1,197
This Cheapflightsfares deal was found by Cheapflights users on 9/16. 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.
Wed 9/174:33 pmISP - ANC
2 stops14h 14mMultiple Airlines
Thu 9/185:59 pmANC - ISP
2 stops12h 59mMultiple Airlines
Deal found 9/16$1,258
This Expedia deal was found by Cheapflights users on 9/16. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/211:53 amISP - ANC
2 stops17h 50mMultiple Airlines
Mon 10/611:16 amANC - ISP
2 stops19h 42mMultiple Airlines
Deal found 9/16$1,335

Cheapflights Fare Finder

 
Customize your flight search to find flights from Islip to Alaska 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 September 17, 2025.
Use the filters below to find and compare flights from Islip to Alaska that are best for you.

Fly from

Islip

Fly to

Alaska

Route

Depart

Return

Price

IslipAnchorage

ISP - ANC

ISPANC

Islip Long Island

Thu 10/2

11:53 am-1:43 am

2 stops17h 50m

Anchorage

Mon 10/6

11:16 am-10:58 am

2 stops19h 42m

$1,335

IslipAnchorage

ISP - ANC

ISPANC

Islip Long Island

Tue 9/30

4:33 pm-1:43 am

2 stops13h 10m

$672

IslipAnchorage

ISP - ANC

ISPANC

Islip Long Island

Wed 10/8

2:19 pm-12:27 am

2 stops14h 08m

$883

IslipAnchorage

ISP - ANC

ISPANC

Islip Long Island

Tue 10/14

2:19 pm-12:27 am

2 stops14h 08m

$1,089

IslipAnchorage

ISP - ANC

ISPANC

Islip Long Island

Sun 9/28

4:33 pm-1:43 am

2 stops13h 10m

$1,447

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Best time to book a flight from Islip to Alaska

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

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

Currently, January is the cheapest month in which you can book a flight from Islip to Alaska (average of $456). Flying from Islip to Alaska in July is currently the most expensive (average of $642). 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 Alaska. 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 Alaska?

    If you book a flight to Alaska from Islip, you will be flying from Long Island, which is the city’s only airport. Islip Long Island (ISP) is located 7.2 mi from the center of Islip.

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

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

  • How can I find direct flights from Islip to Alaska?

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

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

    Yes. Cheapflights offers flight deals from Islip to Alaska 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 to Alaska?

    Currently, January is the cheapest month in which you can book a flight from Islip to Alaska (average of $456). Flying from Islip to Alaska in July is currently the most expensive (average of $642). 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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