$817+ Cheap flights from Islip, NY (ISP) to Iceland
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 9/28. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — KEF
Aug 31 — Sep 71
Round-trip
1 adult, Economy
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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
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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 Iceland
Cheapest
Best
Last-minute
One-way
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 August 1, 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 August 1, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/27. 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.
Wed 8/2611:57 am
ISP
- KEF
1 stop14h 43m
Multiple Airlines
Wed 9/24:45 pm
KEF
- ISP
2 stops21h 08m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$828
This Kiwi.com deal was found by Cheapflights users on 7/28. 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.
Fri 9/115:43 pm
ISP
- KEF
2 stops34h 27m
Multiple Airlines
Fri 9/184:45 pm
KEF
- ISP
1 stop22h 35m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$1,232
This Kiwi.com deal was found by Cheapflights users on 7/31. 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.
Mon 9/142:16 pm
ISP
- KEF
1 stop13h 54m
Multiple Airlines
Mon 9/215:10 pm
KEF
- ISP
1 stop28h 31m
Multiple Airlines
Deal found 7/31![Multiple Airlines logo]()
$3,146
Best flights from Islip to IcelandDiscover carefully curated flight deals from Islip to Iceland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 1, 2026.
Discover carefully curated flight deals from Islip to Iceland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 1, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/27. 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.
Wed 8/2611:57 am
ISP
- KEF
1 stop14h 43m
Multiple Airlines
Wed 9/24:45 pm
KEF
- ISP
2 stops21h 08m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$828
This Kiwi.com deal was found by Cheapflights users on 7/31. 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.
Mon 9/142:16 pm
ISP
- KEF
1 stop13h 54m
Multiple Airlines
Mon 9/215:10 pm
KEF
- ISP
1 stop28h 31m
Multiple Airlines
Deal found 7/31![Multiple Airlines logo]()
$3,146
Last-minute flights from Islip to IcelandDiscover last-minute flight deals from Islip to Iceland. Data last updated August 1, 2026 and is based on user searches.
Discover last-minute flight deals from Islip to Iceland. Data last updated August 1, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 7/27. 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.
Wed 8/2611:57 am
ISP
- KEF
1 stop14h 43m
Multiple Airlines
Wed 9/24:45 pm
KEF
- ISP
2 stops21h 08m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$828
One-way flights from Islip to IcelandSearch for one-way flight options from Islip to Iceland. Find affordable one-way fares based on user searches. Data last updated August 1, 2026.
Search for one-way flight options from Islip to Iceland. Find affordable one-way fares based on user searches. Data last updated August 1, 2026.
This KAYAK deal was found by Cheapflights users on 7/29. 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.
Mon 9/284:26 pm
ISP
- KEF
2 stops33h 39m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$817
This KAYAK deal was found by Cheapflights users on 7/29. 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.
Sun 9/274:26 pm
ISP
- KEF
2 stops33h 54m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$868
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 August 1, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $828 (Kiwi.com) |
One-way from | $817 (KAYAK) |
Popular in | December |
Cheapest in | January |
Average price | $573 |
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 August 1, 2026.
Use the filters below to find and compare flights from Islip to Iceland that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
IslipReykjavik
ISP - KEF
ISPKEF
Islip Long Island
Wed 8/26
11:57 am-6:40 am
1 stop14h 43m
Reykjavik Keflavik Intl
Wed 9/2
4:45 pm-9:53 am
2 stops21h 08m
$828
IslipReykjavik
ISP - KEF
ISPKEF
Islip Long Island
Mon 9/14
2:16 pm-8:10 am
1 stop13h 54m
Reykjavik Keflavik Intl
Mon 9/21
5:10 pm-5:41 pm
1 stop28h 31m
$3,146
Cheapest one-way
Quickest one-way
IslipReykjavik
ISP - KEF
ISPKEF
Islip Long Island
Mon 9/28
4:26 pm-6:05 am
2 stops33h 39m
$817
IslipReykjavik
ISP - KEF
ISPKEF
Islip Long Island
Sun 9/27
4:26 pm-6:20 am
2 stops33h 54m
$868
Sorted by cheapest first
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.
ISP-KEF
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
ISP-IS0
ISP-KEF
No data available for this route at this time. Please check back soon.
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