$532+ Cheap flights from Islip, NY (ISP) to Ireland
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 1/14. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — DUB
Jan 10 — Jan 171
1 adult, Economy
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1. Tell us where you want to go
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One-way flights from Islip to IrelandSearch for one-way flight options from Islip to Ireland. Find affordable one-way fares based on user searches. Data last updated December 11, 2025.
Search for one-way flight options from Islip to Ireland. Find affordable one-way fares based on user searches. Data last updated December 11, 2025.
This Mytrip deal was found by Cheapflights users on 12/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/149:59 amISP - SNN
3 stops27h 01mMultiple Airlines
Deal found 12/10![Multiple Airlines logo]()
$532
Find flight deals from Islip to Ireland
Keep the following information in mind while searching for Islip to Ireland flight deals. Data was last updated December 11, 2025.
Most accurate provider | Mytrip 3 stars |
|---|---|
Most trusted provider | Mytrip 3 stars |
Popular in | December |
Cheapest in | October |
Average price | $785 |
Cheapflights Fare Finder
Customize your flight search to find flights from Islip to Ireland 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 December 11, 2025.
Use the filters below to find and compare flights from Islip to Ireland that are best for you.
Fly from
Islip
Fly to
Ireland
Route
Depart
Return
Price
IslipShannon
ISP - SNN
ISPSNN
Islip Long Island
Wed 1/14
9:59 am-6:00 pm
3 stops27h 01m
$532
Best time to book a flight from Islip to Ireland
Have a flexible travel schedule? Discover the best time to fly to Ireland 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 Ireland
What is the cheapest month to book a flight from Islip, New York to Ireland?
Currently, February is the cheapest month in which you can book a flight from Islip, New York to Ireland (average of $242). Flying from Islip, New York to Ireland in June is currently the most expensive (average of $433). 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.