Find Deals on International Flights to Islip Long Island

Depart
Return
1 adult
Adults
18-64
Seniors
65+
Youths
12-17
Children
2-11
Seat Infants
under 2
Lap Infants
under 2
The price shown for each flight will be the average for all passengers including any infants.
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Dates flexible? Here are the best fares found in the past 48 hours...

Book cheap flights from worldwide to Islip Long Island

(Round-trip)
Depart: Mon May 8 2017 Return: Tue May 9 2017 Trip spans 2 days
American Airlines
American Airlines
DCA
ISP
4h 17m
1 stop
ISP
DCA
7h 27m
2 stops
Depart: Thu May 25 2017 Return: Mon May 29 2017 Trip spans 5 days
Southwest
Southwest
TPA
ISP
2h 40m
nonstop
ISP
TPA
2h 55m
nonstop
Depart: Thu Apr 27 2017 Return: Fri Apr 28 2017 Trip spans 2 days
American Airlines
American Airlines
DCA
ISP
6h 16m
1 stop
ISP
DCA
4h 22m
1 stop
Depart: Wed May 17 2017 Return: Mon May 22 2017 Trip spans 6 days
American Airlines
American Airlines
TPA
ISP
7h 36m
1 stop
ISP
TPA
7h 23m
1 stop
Depart: Sat May 13 2017 Return: Mon May 15 2017 Trip spans 3 days
American Airlines
American Airlines
ATL
ISP
9h 33m
2 stops
ISP
ATL
4h 30m
1 stop
Depart: Tue Sep 5 2017 Return: Wed Sep 20 2017 Trip spans 16 days
American Airlines
American Airlines
CVG
ISP
4h 00m
1 stop
ISP
CVG
4h 11m
1 stop
Depart: Mon May 15 2017 Return: Wed May 17 2017 Trip spans 3 days
American Airlines
American Airlines
SFO
ISP
8h 20m
1 stop
ISP
SFO
8h 51m
1 stop
Depart: Sat Apr 29 2017 Return: Tue May 2 2017 Trip spans 4 days
American Airlines
American Airlines
DCA
ISP
4h 06m
1 stop
ISP
DCA
3h 37m
1 stop
Depart: Sun May 14 2017 Return: Wed May 17 2017 Trip spans 4 days
American Airlines
American Airlines
FLL
ISP
7h 38m
2 stops
ISP
FLL
4h 50m
1 stop
Depart: Tue May 16 2017 Return: Mon May 22 2017 Trip spans 7 days
American Airlines
American Airlines
DTW
ISP
3h 46m
1 stop
ISP
DTW
4h 01m
1 stop
Depart: Sat May 6 2017 Return: Sun May 7 2017 Trip spans 2 days
American Airlines
American Airlines
DCA
ISP
3h 46m
1 stop
ISP
DCA
4h 22m
1 stop
Depart: Tue May 23 2017 Return: Wed May 24 2017 Trip spans 2 days
American Airlines
American Airlines
CVG
ISP
4h 11m
1 stop
ISP
CVG
4h 13m
1 stop
Depart: Thu Aug 31 2017 Return: Sun Sep 10 2017 Trip spans 11 days
American Airlines
American Airlines
CVG
ISP
4h 00m
1 stop
ISP
CVG
4h 11m
1 stop
Depart: Thu Oct 5 2017 Return: Sun Oct 8 2017 Trip spans 4 days
American Airlines
American Airlines
CVG
ISP
4h 00m
1 stop
ISP
CVG
4h 11m
1 stop
Depart: Tue Jul 4 2017 Return: Tue Jul 11 2017 Trip spans 8 days
American Airlines
American Airlines
FLL
ISP
5h 41m
1 stop
ISP
FLL
4h 46m
1 stop
Depart: Thu Oct 5 2017 Return: Tue Oct 10 2017 Trip spans 6 days
American Airlines
American Airlines
TPA
ISP
7h 29m
1 stop
ISP
TPA
11h 55m
2 stops
Depart: Sun May 14 2017 Return: Sun May 21 2017 Trip spans 8 days
American Airlines
American Airlines
PIT
ISP
4h 21m
1 stop
ISP
PIT
3h 50m
1 stop
Depart: Tue Jun 27 2017 Return: Wed Jun 28 2017 Trip spans 2 days
American Airlines
American Airlines
PIT
ISP
4h 05m
1 stop
ISP
PIT
3h 45m
1 stop
Depart: Wed Sep 6 2017 Return: Sat Sep 9 2017 Trip spans 4 days
American Airlines
American Airlines
PIT
ISP
3h 45m
1 stop
ISP
PIT
3h 37m
1 stop
Depart: Fri Oct 27 2017 Return: Mon Oct 30 2017 Trip spans 4 days
American Airlines
American Airlines
PIT
ISP
3h 45m
1 stop
ISP
PIT
3h 37m
1 stop
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

We’re not the seller.
At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

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Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

If you have more questions or if you have a bad price to report to us,
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Airports
Origin

San Francisco
$319
Detroit
$326
Atlanta
$311
Fort Lauderdale
$325
Cincinnati
$312
Tampa
$302
Washington
$245
Pittsburgh
$356
Destination

Islip
$245