$1,084+ Cheap flights from Islip, NY (ISP) to Alaska
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 9/2. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — ANC
Sep 5 — Sep 121
Round-trip
1 adult, Economy
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Find cheap flights from Islip to Alaska with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Islip to Alaska
Cheapest
Best
Last-minute
Cheapest flights from Islip to AlaskaExplore 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 August 6, 2026.
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 August 6, 2026.
This Southwest deal was found by Cheapflights users on 8/1. 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.
Wed 9/26:05 am -
2 stops19h 10m
Wed 9/911:55 pm -
2 stops12h 30m
Deal found 8/1![Southwest logo]()
$1,084
This Southwest deal was found by Cheapflights users on 8/6. 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 8/710:20 am -
2 stops14h 55m
Fri 8/1410:25 pm -
2 stops17h 05m
Deal found 8/6![Southwest logo]()
$1,385
This KAYAK deal was found by Cheapflights users on 8/1. 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.
Wed 9/22:16 pm -
2 stops14h 31m
Thu 9/105:09 pm -
2 stops15h 21m
Deal found 8/1![Multiple Airlines logo]()
$1,393
This United deal was found by Cheapflights users on 8/6. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/77:05 am -
2 stops16h 07m
Fri 8/143:15 pm -
3 stops25h 44m
Deal found 8/6![Multiple Airlines logo]()
$1,749
Best flights from Islip to AlaskaDiscover carefully curated flight deals from Islip to Alaska that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 6, 2026.
Discover carefully curated flight deals from Islip to Alaska that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 6, 2026.
This Southwest deal was found by Cheapflights users on 8/1. 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.
Wed 9/26:05 am -
2 stops19h 10m
Wed 9/911:55 pm -
2 stops12h 30m
Deal found 8/1![Southwest logo]()
$1,084
This KAYAK deal was found by Cheapflights users on 8/1. 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.
Wed 9/22:16 pm -
2 stops14h 31m
Thu 9/105:09 pm -
2 stops15h 21m
Deal found 8/1![Multiple Airlines logo]()
$1,393
Last-minute flights from Islip to AlaskaDiscover last-minute flight deals from Islip to Alaska. Data last updated August 6, 2026 and is based on user searches.
Discover last-minute flight deals from Islip to Alaska. Data last updated August 6, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 8/6. 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 8/710:20 am -
2 stops14h 55m
Fri 8/1410:25 pm -
2 stops17h 05m
Deal found 8/6![Southwest logo]()
$1,385
This United deal was found by Cheapflights users on 8/6. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/77:05 am -
2 stops16h 07m
Fri 8/143:15 pm -
3 stops25h 44m
Deal found 8/6![Multiple Airlines logo]()
$1,749
This Southwest deal was found by Cheapflights users on 8/1. 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.
Wed 9/26:05 am -
2 stops19h 10m
Wed 9/911:55 pm -
2 stops12h 30m
Deal found 8/1![Southwest logo]()
$1,084
This KAYAK deal was found by Cheapflights users on 8/1. 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.
Wed 9/22:16 pm -
2 stops14h 31m
Thu 9/105:09 pm -
2 stops15h 21m
Deal found 8/1![Multiple Airlines logo]()
$1,393
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 August 6, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,084 (Southwest) |
Popular in | December |
Cheapest in | October |
Average price | $750 |
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 August 6, 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
Cheapest round-trip
IslipAnchorage
ISP Islip Long Island - ANC Anchorage
ISPANC
Islip Long Island
Wed 9/2
6:05 am-9:15 pm
2 stops19h 10m
Anchorage
Wed 9/9
11:55 pm-4:25 pm
2 stops12h 30m
$1,084
Quickest round-trip
IslipAnchorage
ISP Islip Long Island - ANC Anchorage
ISPANC
Islip Long Island
Wed 9/2
2:16 pm-12:47 am
2 stops14h 31m
Anchorage
Thu 9/10
5:09 pm-12:30 pm
2 stops15h 21m
$1,393
Sorted by cheapest first
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.
ISP-ANC
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
ISP-USAK
ISP-ANC
No data available for this route at this time. Please check back soon.
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