$959+ Cheap flights from Islip, NY (ISP) to Iceland
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 3/5. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — KEF
feb. 19 — feb. 261
1 adult, Economy
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Cheapest flights from Islip to IcelandExplore the most affordable flight options available from Islip to Iceland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on enero 20, 2026.
Explore the most affordable flight options available from Islip to Iceland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on enero 20, 2026.
This Kiwi.com deal was found by Cheapflights users on 1/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 3/59:59 am
ISP
- KEF
1 stop15h 06m
Multiple Airlines
jue. 3/129:55 am
KEF
- ISP
1 stop12h 49m
Multiple Airlines
Deal found 1/18![Multiple Airlines logo]()
$959
Find flight deals from Islip to Iceland
Keep the following information in mind while searching for Islip to Iceland flight deals. Data was last updated enero 20, 2026.
Most accurate provider | Mytrip 3 stars |
|---|---|
Most trusted provider | Mytrip 3 stars |
Round-trip from | $959 (Kiwi.com) |
Popular in | December |
Cheapest in | May |
Average price | $425 |
Cheapflights Fare Finder
Customize your flight search to find flights from Islip to Iceland 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 enero 20, 2026.
Use the filters below to find and compare flights from Islip to Iceland that are best for you.
Fly from
Islip
Fly to
Iceland
Route
Depart
Return
Price
IslipReykjavik
ISP - KEF
ISPKEF
Islip Long Island
jue. 3/5
9:59 am-6:05 am
1 stop15h 06m
Reykjavik Keflavik Intl
jue. 3/12
9:55 am-6:44 pm
1 stop12h 49m
$959
Best time to book a flight from Islip to Iceland
Have a flexible travel schedule? Discover the best time to fly to Iceland 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 Iceland
What is the cheapest month to book a flight from Islip, New York to Iceland?
Currently, March is the cheapest month in which you can book a flight from Islip, New York to Iceland (average of $221). Flying from Islip, New York to Iceland in December is currently the most expensive (average of $353). 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.