$1,420+ Cheap flights from Islip, NY (ISP) to Ireland
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 7/26. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from Islip to Ireland 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 Ireland
Keep the following information in mind while searching for Islip to Ireland flight deals. Data was last updated June 12, 2025.
Round-trip from | $1,420 (Kiwi.com) |
|---|---|
Popular in | June |
Cheapest in | January |
Average price | $742 |
Find flight deals from Islip to Ireland
Cheapest flights from Islip to IrelandExplore the most affordable flight options available from Islip to Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.
Explore the most affordable flight options available from Islip to Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.
This Kiwi.com deal was found by Cheapflights users on 6/11. 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.
This Ovago deal was found by Cheapflights users on 6/11. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
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 June 12, 2025.
Use the filters below to find and compare flights from Islip to Ireland that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
IslipDublin
ISP - DUB
ISPDUB
Islip Long Island
Sat 7/26
2:19 pm-11:10 pm
2 stops27h 51m
Dublin
Sat 8/2
12:40 pm-8:01 pm
1 stop12h 21m
IslipShannon
ISP - SNN
ISPSNN
Islip Long Island
Sat 7/26
2:19 pm-5:25 am
1 stop10h 06m
Shannon
Sat 8/2
1:45 pm-8:01 pm
1 stop11h 16m
IslipShannon
ISP - SNN
ISPSNN
Islip Long Island
Sun 11/16
4:33 pm-6:20 am
1 stop8h 47m
IslipDublin
ISP - DUB
ISPDUB
Islip Long Island
Thu 9/11
2:19 pm-4:30 am
1 stop9h 11m
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.
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, November is the cheapest month in which you can book a flight from Islip, New York to Ireland (average of $509). Flying from Islip, New York to Ireland in June is currently the most expensive (average of $947). 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.
Rainfall in Ireland by month
Plan your trip to Ireland by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Ireland ranges from 1.9 - 3.1 inches per month. October is typically the wettest month, when rainfall can reach 3.1 in. February is typically the driest time to visit Ireland when rainfall is around 1.9 in.
Temperature in Ireland by month
Plan your trip to Ireland by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Ireland, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 60.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 41.0 F).