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Cheap flights from Islip, New York to Dublin from $1,244

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Islip, New York to Dublin departing on 9/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Islip, New York to Dublin

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:05 am - 7:45 amISP  Islip Long Island-DUB Dublin
19h 40m2 stops Boston Logan Intl Montreal Pierre Elliott Trudeau Intl
Multiple Airlines Logo
9:20 am - 8:59 pmDUB  Dublin-ISP Islip Long Island
16h 39m2 stops Toronto Pearson Intl Boston Logan Intl
$1,244Multiple Airlines
Fri, Sep 11 - Fri, Sep 18
Multiple Airlines Logo
5:43 pm - 4:35 amISP  Islip Long Island-DUB Dublin
29h 52m2 stops Orlando Boston Logan Intl
Multiple Airlines Logo
1:50 pm - 4:58 pmDUB  Dublin-ISP Islip Long Island
32h 08m1 stop Orlando
$1,257Multiple Airlines
Fri, Sep 11 - Fri, Sep 18
Multiple Airlines Logo
9:05 am - 4:35 amISP  Islip Long Island-DUB Dublin
14h 30m1 stop Boston Logan Intl
Multiple Airlines Logo
12:45 pm - 8:59 pmDUB  Dublin-ISP Islip Long Island
13h 14m1 stop Boston Logan Intl
$1,259Multiple Airlines
Fri, Sep 11 - Fri, Sep 18
Multiple Airlines Logo
9:05 am - 4:35 amISP  Islip Long Island-DUB Dublin
14h 30m1 stop Boston Logan Intl
Multiple Airlines Logo
12:45 pm - 8:59 pmDUB  Dublin-ISP Islip Long Island
13h 14m1 stop Boston Logan Intl
$1,260Multiple Airlines
Fri, Sep 11 - Fri, Sep 18
Multiple Airlines Logo
5:43 pm - 4:35 amISP  Islip Long Island-DUB Dublin
29h 52m2 stops Orlando Boston Logan Intl
Multiple Airlines Logo
1:50 pm - 4:58 pmDUB  Dublin-ISP Islip Long Island
32h 08m1 stop Orlando
$1,354Multiple Airlines
Fri, Sep 11 - Fri, Sep 18
Multiple Airlines Logo
4:26 pm - 4:35 amISP  Islip Long Island-DUB Dublin
31h 09m2 stops Orlando Boston Logan Intl
Multiple Airlines Logo
11:10 am - 11:22 pmDUB  Dublin-ISP Islip Long Island
17h 12m2 stops New York John F Kennedy Intl Fort Lauderdale
$1,393Multiple Airlines
Fri, Sep 11 - Fri, Sep 18
Multiple Airlines Logo
7:05 am - 7:45 amISP  Islip Long Island-DUB Dublin
19h 40m3 stops Boston Logan Intl Toronto Island Montreal Pierre Elliott Trudeau Intl
Multiple Airlines Logo
5:30 am - 8:59 pmDUB  Dublin-ISP Islip Long Island
20h 29m2 stops Lisbon Humberto Delgado Boston Logan Intl
$1,826Multiple Airlines
Fri, Sep 11 - Fri, Sep 18

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Customize your flight search to find flights from Islip, New York to Dublin 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, momondo users made 832,500 searches. Data last updated August 9, 2026.
Use the filters below to find and compare flights from Islip, New York to Dublin that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

IslipDublin

ISP Islip Long Island - DUB Dublin

ISPDUB

Islip Long Island

Fri 9/11

7:05 am-7:45 am

2 stops19h 40m

Dublin

Fri 9/18

9:20 am-8:59 pm

2 stops16h 39m

$1,244

IslipDublin

ISP Islip Long Island - DUB Dublin

ISPDUB

Islip Long Island

Fri 9/11

5:43 pm-4:35 am

2 stops29h 52m

Dublin

Fri 9/18

1:50 pm-4:58 pm

1 stop32h 08m

$1,257
Quickest round-trip

IslipDublin

ISP Islip Long Island - DUB Dublin

ISPDUB

Islip Long Island

Fri 9/11

9:05 am-4:35 am

1 stop14h 30m

Dublin

Fri 9/18

12:45 pm-8:59 pm

1 stop13h 14m

$1,259

IslipDublin

ISP Islip Long Island - DUB Dublin

ISPDUB

Islip Long Island

Fri 9/11

9:05 am-4:35 am

1 stop14h 30m

Dublin

Fri 9/18

12:45 pm-8:59 pm

1 stop13h 14m

$1,260

IslipDublin

ISP Islip Long Island - DUB Dublin

ISPDUB

Islip Long Island

Fri 9/11

5:43 pm-4:35 am

2 stops29h 52m

Dublin

Fri 9/18

1:50 pm-4:58 pm

1 stop32h 08m

$1,354

IslipDublin

ISP Islip Long Island - DUB Dublin

ISPDUB

Islip Long Island

Fri 9/11

4:26 pm-4:35 am

2 stops31h 09m

Dublin

Fri 9/18

11:10 am-11:22 pm

2 stops17h 12m

$1,393

IslipDublin

ISP Islip Long Island - DUB Dublin

ISPDUB

Islip Long Island

Fri 9/11

7:05 am-7:45 am

3 stops19h 40m

Dublin

Fri 9/18

5:30 am-8:59 pm

2 stops20h 29m

$1,826

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Dublin from

How to get the cheapest flight ticket from Islip, New York to Dublin

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Dublin?

The cheapest day to depart from Islip, New York to Dublin is on a Sunday. Travelers who choose to depart for Dublin on a Sunday will often find tickets for as low as $621. Flights from Islip, New York to Dublin on a Saturday will generally be more expensive and average around $679. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Dublin?

In the evening is the cheapest time of day to fly from Islip, New York to Dublin when you can find flight prices for as low as $634. Flying to Dublin in the evening is an ideal time because this is during off-peak travel hours. Flights in the afternoon are often more expensive with an average ticket price of $639.

When to book flights from Islip, New York to Dublin

Are you open to changing your travel dates? Check out the ideal times to fly from Islip, New York to Dublin according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Islip, New York to Dublin (ISP to DUB) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Islip, New York to Dublin

Fastest flight time

19h 40m

Direct flights

None
The fastest flight from Islip, New York to Dublin takes 19h 40m
There are no direct flights from Islip, New York to Dublin. There are no popular flight routes from Islip, New York to Dublin.
Search flight deals

Frequently asked questions about flying from Islip, New York to Dublin

  • How far is Islip Long Island to Dublin by plane?

    There are 3143.3 mi between Islip Long Island and Dublin. 19h 40m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Islip Long Island Airport to Dublin Airport?

    Prices for flights from Islip Long Island Airport to Dublin Airport refresh daily.

  • How old do you have to be to fly from Islip Long Island Airport to Dublin Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Islip Long Island Airport to Dublin Airport.

  • What documentation or ID do you need to fly to Dublin Airport?

    The necessary travel and health documents for your Dublin Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Traveling to a place near Dublin?

Book flights to Dublin if you plan to visit one of these locations
Kilkenny
Swords
Athlone
Malahide
Kildare
Mullingar
Wicklow
Bray
Portmarnock
Leixlip
Dundalk
Carlingford
Drogheda
Arklow
Naas
Castleknock
Cavan
Slane
Maynooth
Thurles

Why use momondo?

Why should I use momondo to find a flight deal from Islip to Dublin?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Islip to Dublin for you.

Can I find flights from Islip to Dublin with flexible booking policies on momondo?

Flights from Islip to Dublin with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Islip to Dublin?

Once you have performed a search for Islip to Dublin flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Islip to Dublin right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Islip to Dublin flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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