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$667+ Cheap flights from Islip, NY (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 5/7. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — ANC
May 24 — May 311
Sun 5/24
Sun 5/31
1 adult, Economy
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Cheap 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 April 24, 2026.

This Southwest deal was found by Cheapflights users on 4/19. 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.
Fri 5/228:35 am
ISP
-
ANC
2 stops18h 10m
Southwest
Fri 5/2911:55 pm
ANC
-
ISP
2 stops18h 45m
Southwest
Deal found 4/19$979
This Southwest deal was found by Cheapflights users on 4/22. 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.
Sun 7/56:00 am
ISP
-
ANC
2 stops19h 15m
Southwest
Mon 7/610:25 pm
ANC
-
ISP
2 stops13h 35m
Southwest
Deal found 4/22$1,118
This KAYAK deal was found by Cheapflights users on 4/23. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/77:25 am
ISP
-
ANC
2 stops30h 19m
Multiple Airlines
Sun 5/1711:12 am
ANC
-
ISP
2 stops19h 53m
Multiple Airlines
Deal found 4/23$1,183
This KAYAK deal was found by Cheapflights users on 4/23. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/97:25 am
ISP
-
ANC
2 stops21h 17m
Multiple Airlines
Fri 5/151:10 am
ANC
-
ISP
2 stops14h 35m
Multiple Airlines
Deal found 4/23$1,197

Find flight deals from Islip to Alaska

Keep the following information in mind while searching for Islip to Alaska flight deals. Data was last updated April 24, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$979
(Southwest)

One-way from

$667
(KAYAK)

Popular in

May

Cheapest in

October

Average price

$652
Provider with most accurate pricing for New York (NYC)-Anchorage flight deals.
Search Deals
Provider most trusted by Cheapflights users for New York (NYC)-Anchorage flights.
Search Deals
From Islip Long Island to Alaska
Search Deals
One-way flight from Islip Long Island to Alaska
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($38 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

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 April 24, 2026.
Use the filters below to find and compare flights from Islip to Alaska that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

IslipAnchorage

ISP - ANC

ISPANC

Islip Long Island

Fri 5/22

8:35 am-10:45 pm

2 stops18h 10m

Anchorage

Fri 5/29

11:55 pm-10:40 pm

2 stops18h 45m

$979
Quickest round-trip

IslipAnchorage

ISP - ANC

ISPANC

Islip Long Island

Sun 7/5

6:00 am-9:15 pm

2 stops19h 15m

Anchorage

Mon 7/6

10:25 pm-4:00 pm

2 stops13h 35m

$1,118

IslipAnchorage

ISP - ANC

ISPANC

Islip Long Island

Thu 5/7

12:30 pm-9:44 am

2 stops25h 14m

Anchorage

Fri 5/15

1:55 am-7:45 pm

2 stops13h 50m

$1,183

IslipAnchorage

ISP - ANC

ISPANC

Islip Long Island

Wed 5/13

9:59 am-9:51 am

2 stops27h 52m

Anchorage

Sun 5/17

3:45 pm-7:45 pm

2 stops24h 00m

$1,197

IslipAnchorage

ISP - ANC

ISPANC

Islip Long Island

Wed 5/13

9:59 am-9:51 am

2 stops27h 52m

Anchorage

Fri 5/15

1:10 am-7:45 pm

2 stops14h 35m

$1,197

IslipAnchorage

ISP - ANC

ISPANC

Islip Long Island

Sat 5/9

7:25 am-12:42 am

2 stops21h 17m

Anchorage

Fri 5/15

1:10 am-7:45 pm

2 stops14h 35m

$1,197
Cheapest one-way

IslipAnchorage

ISP - ANC

ISPANC

Islip Long Island

Thu 5/7

12:30 pm-9:44 am

2 stops25h 14m

$667
Quickest one-way

IslipAnchorage

ISP - ANC

ISPANC

Islip Long Island

Tue 5/5

12:30 pm-12:27 am

2 stops15h 57m

$699

IslipAnchorage

ISP - ANC

ISPANC

Islip Long Island

Tue 5/12

7:25 am-11:09 am

2 stops31h 44m

$768

IslipAnchorage

ISP - ANC

ISPANC

Islip Long Island

Mon 5/11

9:59 am-9:44 am

2 stops27h 45m

$768

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/23

Showing 1-10 of 11 resultsSorted by cheapest first
1
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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
No data available for this route at this time. Please check back soon.

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.

  • How long is the flight from Islip, New York to Alaska?

    Airlines like Southwest fly from Islip, New York to Alaska in about 18h 10m. The time it takes to get you to your destination can typically vary by up to . Airlines will cover a distance of 3388 mi.

  • 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.

See more FAQs

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