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Cheap flights from Islip to Dublin from $1,081

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 to Dublin departing on 10/16. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Islip to Dublin (ISP-DUB)

Cheap round-trip flights

Logo
9:37 pm - 10:00 amISP-DUB
31h 23m2 stops
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4:45 pm - 10:58 amDUB-ISP
23h 13m1 stop
$1,081
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Thu, Oct 16 - Wed, Oct 22
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7:30 am - 11:05 amISP-DUB
22h 35m2 stops
Logo
9:00 pm - 8:01 pmDUB-ISP
28h 01m3 stops
$1,113
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Thu, Oct 16 - Wed, Oct 22
Logo
2:19 pm - 4:30 amISP-DUB
9h 11m1 stop
Logo
4:45 pm - 10:58 amDUB-ISP
23h 13m1 stop
$1,167
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Thu, Oct 16 - Wed, Oct 22
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4:33 pm - 8:25 amISP-DUB
10h 52m1 stop
Logo
8:30 am - 10:58 amDUB-ISP
31h 28m2 stops
$1,172
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Sun, Oct 5 - Sun, Oct 12
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7:30 am - 8:25 amISP-DUB
19h 55m1 stop
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12:40 pm - 8:01 pmDUB-ISP
12h 21m1 stop
$1,197
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Sun, Oct 5 - Sun, Oct 12
Logo
2:19 pm - 7:15 pmISP-DUB
23h 56m3 stops
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7:55 am - 8:01 pmDUB-ISP
41h 06m3 stops
$1,235
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Sun, Oct 5 - Sun, Oct 12
Logo
11:53 am - 10:15 pmISP-DUB
29h 22m3 stops
Logo
12:15 pm - 10:58 amDUB-ISP
27h 43m2 stops
$1,303
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Sun, Oct 5 - Sun, Oct 12
Logo
4:33 pm - 11:05 amISP-DUB
13h 32m2 stops
Logo
12:15 pm - 10:58 amDUB-ISP
27h 43m2 stops
$1,316
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Thu, Oct 16 - Wed, Oct 22
Logo
11:53 am - 4:30 amISP-DUB
11h 37m1 stop
Logo
7:55 am - 8:01 pmDUB-ISP
41h 06m3 stops
$1,417
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Sun, Oct 5 - Sun, Oct 12

momondo Fare Finder

 
Customize your flight search to find flights from Islip 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 21, 2025.
Use the filters below to find and compare flights from Islip to Dublin that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

IslipDublin

ISP - DUB

ISPDUB

Islip Long Island

Thu 10/16

9:37 pm-10:00 am

2 stops31h 23m

Dublin

Wed 10/22

4:45 pm-10:58 am

1 stop23h 13m

$1,081

IslipDublin

ISP - DUB

ISPDUB

Islip Long Island

Thu 10/16

7:30 am-11:05 am

2 stops22h 35m

Dublin

Wed 10/22

9:00 pm-8:01 pm

3 stops28h 01m

$1,113

IslipDublin

ISP - DUB

ISPDUB

Islip Long Island

Thu 10/16

2:19 pm-4:30 am

1 stop9h 11m

Dublin

Wed 10/22

4:45 pm-10:58 am

1 stop23h 13m

$1,167

IslipDublin

ISP - DUB

ISPDUB

Islip Long Island

Sun 10/5

4:33 pm-8:25 am

1 stop10h 52m

Dublin

Sun 10/12

8:30 am-10:58 am

2 stops31h 28m

$1,172

IslipDublin

ISP - DUB

ISPDUB

Islip Long Island

Sun 10/5

7:30 am-8:25 am

1 stop19h 55m

Dublin

Sun 10/12

12:40 pm-8:01 pm

1 stop12h 21m

$1,197

IslipDublin

ISP - DUB

ISPDUB

Islip Long Island

Sun 10/5

2:19 pm-7:15 pm

3 stops23h 56m

Dublin

Sun 10/12

7:55 am-8:01 pm

3 stops41h 06m

$1,235

IslipDublin

ISP - DUB

ISPDUB

Islip Long Island

Sun 10/5

11:53 am-10:15 pm

3 stops29h 22m

Dublin

Sun 10/12

12:15 pm-10:58 am

2 stops27h 43m

$1,303

IslipDublin

ISP - DUB

ISPDUB

Islip Long Island

Thu 10/16

4:33 pm-11:05 am

2 stops13h 32m

Dublin

Wed 10/22

12:15 pm-10:58 am

2 stops27h 43m

$1,316

IslipDublin

ISP - DUB

ISPDUB

Islip Long Island

Sun 10/5

11:53 am-4:30 am

1 stop11h 37m

Dublin

Sun 10/12

7:55 am-8:01 pm

3 stops41h 06m

$1,417

IslipDublin

ISP - DUB

ISPDUB

Islip Long Island

Mon 9/8

2:19 pm-4:30 am

1 stop9h 11m

$1,480

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 resultsSorted by cheapest first
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See travel insights to Dublin from

How to get the cheapest flight ticket from Islip 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 to Dublin is on a Wednesday. Travelers who choose to depart for Dublin on a Wednesday will often find tickets for as low as $638. Flights from Islip to Dublin on a Saturday will generally be more expensive and average around $697. 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 morning is the cheapest time of day to fly from Islip to Dublin when you can find flight prices for as low as $609. Flying to Dublin in the morning 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 $685.

When to book flights from Islip to Dublin

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

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

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

Direct flights

None
There are no direct flights from Islip to Dublin. There are no popular flight routes from Islip to Dublin.
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  • How far is Islip Long Island to Dublin by plane?

    There are 3143.3 mi between Islip Long Island and Dublin. 9h 11m 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
Dundalk
Malahide
Maynooth
Leixlip
Bray
Castleknock
Kildare
Naas
Mullingar
Arklow
Cavan
Enniscorthy
Wicklow
Drogheda
Thurles
Slane

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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