Find Cheap Flights from Islip Long Island to Puerto Rico

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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Book cheap flights from Islip Long Island to Puerto Rico

(Round-trip)
Depart: Mon May 8 2017 Return: Fri May 12 2017 Trip spans 5 days
American Airlines
American Airlines
ISP
2:10a
SJU
8:09a
5h 59m
1 stop
SJU
11:20a
ISP
6:02p
6h 42m
1 stop
Depart: Mon May 1 2017 Return: Wed May 10 2017 Trip spans 10 days
American Airlines
American Airlines
ISP
2:10a
SJU
8:09a
5h 59m
1 stop
SJU
11:20a
ISP
6:02p
6h 42m
1 stop
Depart: Wed May 3 2017 Return: Wed May 10 2017 Trip spans 8 days
American Airlines
American Airlines
ISP
2:10a
SJU
8:09a
5h 59m
1 stop
SJU
11:20a
ISP
6:02p
6h 42m
1 stop
Depart: Thu May 4 2017 Return: Thu May 11 2017 Trip spans 8 days
American Airlines
American Airlines
ISP
2:10a
SJU
8:09a
5h 59m
1 stop
SJU
11:20a
ISP
6:02p
6h 42m
1 stop
Depart: Sat May 6 2017 Return: Wed May 10 2017 Trip spans 5 days
American Airlines
American Airlines
ISP
4:30a
SJU
10:25a
5h 55m
1 stop
SJU
11:20a
ISP
6:02p
6h 42m
1 stop
Depart: Sun May 7 2017 Return: Wed May 10 2017 Trip spans 4 days
American Airlines
American Airlines
ISP
4:30a
SJU
10:25a
5h 55m
1 stop
SJU
11:20a
ISP
6:02p
6h 42m
1 stop
Depart: Fri Oct 13 2017 Return: Fri Oct 20 2017 Trip spans 8 days
American Airlines
American Airlines
ISP
2:10a
SJU
8:00a
5h 50m
1 stop
SJU
9:10a
ISP
5:55p
8h 45m
1 stop
Depart: Fri Oct 20 2017 Return: Fri Oct 27 2017 Trip spans 8 days
American Airlines
American Airlines
ISP
2:10a
SJU
8:00a
5h 50m
1 stop
SJU
9:10a
ISP
5:55p
8h 45m
1 stop
Depart: Sat Oct 14 2017 Return: Sat Oct 21 2017 Trip spans 8 days
American Airlines
American Airlines
ISP
2:10a
SJU
8:00a
5h 50m
1 stop
SJU
11:20a
ISP
5:55p
6h 35m
1 stop
Depart: Fri May 5 2017 Return: Fri May 12 2017 Trip spans 8 days
American Airlines
American Airlines
ISP
2:10a
SJU
8:09a
5h 59m
1 stop
SJU
11:20a
ISP
6:02p
6h 42m
1 stop
Depart: Tue May 2 2017 Return: Wed May 10 2017 Trip spans 9 days
American Airlines
American Airlines
ISP
9:10a
SJU
5:34p
8h 24m
1 stop
SJU
11:20a
ISP
6:02p
6h 42m
1 stop
Depart: Fri May 12 2017 Return: Mon May 15 2017 Trip spans 4 days
American Airlines
American Airlines
ISP
2:10a
SJU
8:09a
5h 59m
1 stop
SJU
11:20a
ISP
6:02p
6h 42m
1 stop
Depart: Sun May 14 2017 Return: Mon May 22 2017 Trip spans 9 days
American Airlines
American Airlines
ISP
4:30a
SJU
10:25a
5h 55m
1 stop
SJU
11:20a
ISP
6:02p
6h 42m
1 stop
Depart: Wed Sep 27 2017 Return: Sun Oct 8 2017 Trip spans 12 days
American Airlines
American Airlines
ISP
2:10a
SJU
8:05a
5h 55m
1 stop
SJU
9:10a
ISP
5:55p
8h 45m
1 stop
Depart: Wed Oct 25 2017 Return: Sun Oct 29 2017 Trip spans 5 days
American Airlines
American Airlines
ISP
2:10a
SJU
8:00a
5h 50m
1 stop
SJU
9:10a
ISP
5:55p
8h 45m
1 stop
Depart: Sun Apr 30 2017 Return: Tue May 2 2017 Trip spans 3 days
American Airlines
American Airlines
ISP
2:10a
SJU
8:09a
5h 59m
1 stop
SJU
11:20a
ISP
6:01p
6h 41m
1 stop
Depart: Thu Jun 1 2017 Return: Tue Jun 6 2017 Trip spans 6 days
American Airlines
American Airlines
ISP
2:10a
SJU
7:59p
17h 49m
2 stops
SJU
1:15p
ISP
8:41a
19h 26m
2 stops
Depart: Mon Jun 5 2017 Return: Fri Jun 9 2017 Trip spans 5 days
American Airlines
American Airlines
ISP
1:55p
SJU
10:49a
20h 54m
2 stops
SJU
1:15p
ISP
8:41a
19h 26m
2 stops
Depart: Fri May 19 2017 Return: Mon May 22 2017 Trip spans 4 days
American Airlines
American Airlines
ISP
2:10a
SJU
8:09a
5h 59m
1 stop
SJU
11:20a
ISP
6:02p
6h 42m
1 stop
Depart: Sat May 20 2017 Return: Mon May 22 2017 Trip spans 3 days
American Airlines
American Airlines
ISP
4:30a
SJU
10:25a
5h 55m
1 stop
SJU
11:20a
ISP
6:02p
6h 42m
1 stop
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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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

Islip
$370
Destination

San Juan
$370