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Islip

$1,054+ Cheap flights from Dublin (DUB) to Islip, NY (ISP)

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 9/11. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — ISP
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
1 adult, Economy
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Cheap flight deals from Dublin to Islip

Discover tips and strategies to find the most affordable flight options for your journey from Dublin (DUB) to Islip (ISP). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 29, 2025.

Round-trip from

$1,054
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$679
From Dublin to Islip Long Island
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($94 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($13 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
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Find flight deals from Dublin to Islip

Cheapest flights from Dublin to Islip
Explore the most affordable flight options available from Dublin to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

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.
Thu 9/1112:40 pmDUB - ISP
1 stop12h 21mMultiple Airlines
Thu 9/1811:53 amISP - DUB
1 stop11h 37mMultiple Airlines
Deal found 7/28$1,054

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dublin to Islip 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 July 29, 2025.
Use the filters below to find and compare flights from Dublin to Islip that are best for you.

Fly from

Dublin

Fly to

Islip

Route

Depart

Return

Price

DublinIslip

DUB - ISP

DUBISP

Dublin

Thu 9/11

12:40 pm-8:01 pm

1 stop12h 21m

Islip Long Island

Thu 9/18

11:53 am-4:30 am

1 stop11h 37m

$1,054

DublinIslip

DUB - ISP

DUBISP

Dublin

Mon 8/11

4:45 pm-3:21 pm

1 stop27h 36m

$3,997

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Best time to book a flight from Dublin to Islip

Have a flexible travel schedule? Discover the best time to fly to Islip from Dublin 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 Dublin to Islip

What is the cheapest month to book a flight from Dublin to Islip, New York?

Currently, January is the cheapest month in which you can book a flight from Dublin to Islip, New York (average of $108). Flying from Dublin to Islip, New York in November is currently the most expensive (average of $213). 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.

Related info for your journey

Find useful and relevant information for your journey from Dublin to Islip. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find deals for flights from Dublin to Islip that include hotel bookings?

    Yes. In addition to deals on Dublin to Islip flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dublin to Islip?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dublin to Islip.

  • Can I find deals for business class flights from Dublin to Islip?

    Yes. Cheapflights offers flight deals from Dublin to Islip by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Dublin to Islip, New York?

    Currently, January is the cheapest month in which you can book a flight from Dublin to Islip, New York (average of $108). Flying from Dublin to Islip, New York in November is currently the most expensive (average of $213). 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.

See more FAQs

Traveling to a place near Islip?

Book flights to Islip if you plan to visit one of these locations
Riverhead
Southampton

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