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Cheap flights from Islip, New York to Ireland from $1,157

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 Ireland 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 Ireland

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:05 am - 9:00 amISP  Islip Long Island-DUB Dublin
20h 55m2 stops Boston Logan Intl New York John F Kennedy Intl
Multiple Airlines Logo
11:30 am - 8:59 pmDUB  Dublin-ISP Islip Long Island
14h 29m2 stops New York John F Kennedy Intl Boston Logan Intl
$1,157Multiple Airlines
Fri, Sep 11 - Fri, Sep 18
Multiple Airlines Logo
5:34 pm - 8:20 amISP  Islip Long Island-DUB Dublin
9h 46m1 stop Boston Logan Intl
Multiple Airlines Logo
10:40 am - 8:59 pmDUB  Dublin-ISP Islip Long Island
15h 19m1 stop Boston Logan Intl
$1,193Multiple Airlines
Fri, Sep 11 - Fri, Sep 18
Multiple Airlines Logo
7:00 am - 6:00 amISP  Islip Long Island-SNN Shannon
18h 00m2 stops West Palm Beach President Donald J. Trump Intl New York John F Kennedy Intl
Multiple Airlines Logo
2:30 pm - 3:36 pmSNN  Shannon-ISP Islip Long Island
30h 06m2 stops New York John F Kennedy Intl Orlando
$1,441Multiple Airlines
Fri, Sep 4 - Thu, Sep 10
Multiple Airlines Logo
2:16 pm - 4:10 pmISP  Islip Long Island-SNN Shannon
20h 54m2 stops Boston Logan Intl London Heathrow
Multiple Airlines Logo
2:30 pm - 10:30 amSNN  Shannon-ISP Islip Long Island
25h 00m2 stops New York John F Kennedy Intl Boston Logan Intl
$1,455Multiple Airlines
Thu, Sep 17 - Thu, Sep 24
Multiple Airlines Logo
7:05 am - 3:50 pmISP  Islip Long Island-SNN Shannon
27h 45m3 stops Boston Logan Intl Montreal Pierre Elliott Trudeau Intl London Heathrow
Multiple Airlines Logo
12:15 pm - 8:59 pmSNN  Shannon-ISP Islip Long Island
37h 44m3 stops Madrid Barajas Lisbon Humberto Delgado Boston Logan Intl
$1,488Multiple Airlines
Fri, Sep 4 - Thu, Sep 10
Multiple Airlines Logo
7:05 am - 11:20 amISP  Islip Long Island-SNN Shannon
23h 15m2 stops Boston Logan Intl London Heathrow
Multiple Airlines Logo
1:45 pm - 8:15 pmSNN  Shannon-ISP Islip Long Island
11h 30m1 stop Boston Logan Intl
$1,522Multiple Airlines
Fri, Sep 4 - Thu, Sep 10
Multiple Airlines Logo
7:31 am - 5:25 amISP  Islip Long Island-SNN Shannon
16h 54m1 stop Boston Logan Intl
Multiple Airlines Logo
9:15 pm - 6:35 pmSNN  Shannon-ISP Islip Long Island
26h 20m2 stops London Heathrow Boston Logan Intl
$1,612Multiple Airlines
Thu, Sep 17 - Thu, Sep 24
Multiple Airlines Logo
7:05 am - 5:25 amISP  Islip Long Island-SNN Shannon
17h 20m1 stop Boston Logan Intl
Multiple Airlines Logo
1:45 pm - 8:15 pmSNN  Shannon-ISP Islip Long Island
11h 30m1 stop Boston Logan Intl
$1,740Multiple Airlines
Fri, Sep 4 - Thu, Sep 10
Multiple Airlines Logo
7:31 am - 5:25 amISP  Islip Long Island-SNN Shannon
16h 54m1 stop Boston Logan Intl
Multiple Airlines Logo
1:45 pm - 12:30 pmSNN  Shannon-ISP Islip Long Island
27h 45m1 stop Boston Logan Intl
$1,862Multiple Airlines
Thu, Sep 17 - Thu, Sep 24
Multiple Airlines Logo
9:05 am - 7:45 amISP  Islip Long Island-DUB Dublin
17h 40m3 stops Boston Logan Intl Toronto Pearson Intl 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
$1,943Multiple Airlines
Fri, Sep 11 - Fri, Sep 18

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momondo Fare Finder

 
Customize your flight search to find flights from Islip, New York 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, momondo users made 832,500 searches. Data last updated August 6, 2026.
Use the filters below to find and compare flights from Islip, New York to Ireland 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-9:00 am

2 stops20h 55m

Dublin

Fri 9/18

11:30 am-8:59 pm

2 stops14h 29m

$1,157
Quickest round-trip

IslipDublin

ISP Islip Long Island - DUB Dublin

ISPDUB

Islip Long Island

Fri 9/11

5:34 pm-8:20 am

1 stop9h 46m

Dublin

Fri 9/18

10:40 am-8:59 pm

1 stop15h 19m

$1,193

IslipShannon

ISP Islip Long Island - SNN Shannon

ISPSNN

Islip Long Island

Fri 9/4

7:00 am-6:00 am

2 stops18h 00m

Shannon

Thu 9/10

2:30 pm-3:36 pm

2 stops30h 06m

$1,441

IslipShannon

ISP Islip Long Island - SNN Shannon

ISPSNN

Islip Long Island

Thu 9/17

2:16 pm-4:10 pm

2 stops20h 54m

Shannon

Thu 9/24

2:30 pm-10:30 am

2 stops25h 00m

$1,455

IslipShannon

ISP Islip Long Island - SNN Shannon

ISPSNN

Islip Long Island

Fri 9/4

7:05 am-3:50 pm

3 stops27h 45m

Shannon

Thu 9/10

12:15 pm-8:59 pm

3 stops37h 44m

$1,488

IslipShannon

ISP Islip Long Island - SNN Shannon

ISPSNN

Islip Long Island

Fri 9/4

7:05 am-11:20 am

2 stops23h 15m

Shannon

Thu 9/10

1:45 pm-8:15 pm

1 stop11h 30m

$1,522

IslipShannon

ISP Islip Long Island - SNN Shannon

ISPSNN

Islip Long Island

Thu 9/17

7:31 am-5:25 am

1 stop16h 54m

Shannon

Thu 9/24

9:15 pm-6:35 pm

2 stops26h 20m

$1,612

IslipShannon

ISP Islip Long Island - SNN Shannon

ISPSNN

Islip Long Island

Fri 9/4

7:05 am-5:25 am

1 stop17h 20m

Shannon

Thu 9/10

1:45 pm-8:15 pm

1 stop11h 30m

$1,740

IslipShannon

ISP Islip Long Island - SNN Shannon

ISPSNN

Islip Long Island

Thu 9/17

7:31 am-5:25 am

1 stop16h 54m

Shannon

Thu 9/24

1:45 pm-12:30 pm

1 stop27h 45m

$1,862

IslipDublin

ISP Islip Long Island - DUB Dublin

ISPDUB

Islip Long Island

Fri 9/11

9:05 am-7:45 am

3 stops17h 40m

Dublin

Fri 9/18

5:30 am-8:59 pm

2 stops20h 29m

$1,943

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Ireland from

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

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 airlines fly to Ireland?

Aer Lingus, United Airlines and Delta are the top three most popular airlines that fly to Ireland from Islip, New York according to our data. Aer Lingus is the first choice among our users, with 47% of people opting to fly with this airline when traveling to Ireland. Keep in mind that there are 13 different airlines that fly to Ireland on a routine basis, so you have a few additional options to choose from.

Cheap Islip, New York to Ireland flight deals and tips

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

Fastest flight time

16h 30m

Direct flights

None
The fastest flight from Islip, New York to Ireland takes 16h 30m
There are no direct flights from Islip, New York to Ireland. There are no popular flight routes from Islip, New York to Ireland.
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Frequently asked questions about flying from Islip, New York to Ireland

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

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Islip Long Island Airport to Ireland.

  • What documentation or ID do you need to fly to Ireland?

    The required travel and health documents for your Ireland trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Ireland. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Why use momondo?

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

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 Ireland for you.

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

All flight searches from Islip to Ireland on momondo can be filtered to show those which offer flexible booking policies.

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

Once all potential Islip to Ireland flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

If you are simply researching potential flights to Ireland, momondo offers a useful price alert feature which will track prices for flights to Ireland from Islip and alert you when they change.

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