Find Cheap Flights from Seattle 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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Book cheap flights from Seattle to Islip Long Island

(Round-trip)
Depart: Thu Oct 19 2017 Return: Mon Oct 23 2017 Trip spans 5 days
Southwest
Southwest
SEA
9:35a
ISP
4:30p
6h 55m
1 stop
ISP
8:45a
SEA
8:05p
11h 20m
2 stops
Depart: Mon Aug 21 2017 Return: Sat Aug 26 2017 Trip spans 6 days
American Airlines
American Airlines
SEA
9:26p
ISP
5:19a
7h 53m
1 stop
ISP
2:09p
SEA
10:42p
8h 33m
1 stop
Depart: Wed Sep 13 2017 Return: Fri Sep 15 2017 Trip spans 3 days
Southwest
Southwest
SEA
3:35a
ISP
4:10p
12h 35m
3 stops
ISP
7:15a
SEA
6:25p
11h 10m
2 stops
Depart: Fri Sep 8 2017 Return: Fri Sep 15 2017 Trip spans 8 days
Southwest
Southwest
SEA
3:35a
ISP
4:10p
12h 35m
3 stops
ISP
7:15a
SEA
6:25p
11h 10m
2 stops
Depart: Mon Jul 10 2017 Return: Tue Jul 11 2017 Trip spans 2 days
American Airlines
American Airlines
SEA
9:26p
ISP
5:40a
8h 14m
1 stop
ISP
1:55p
SEA
11:11p
9h 16m
1 stop
Depart: Wed Aug 23 2017 Return: Fri Sep 1 2017 Trip spans 10 days
Southwest
Southwest
SEA
2:35a
ISP
2:40p
12h 05m
2 stops
ISP
11:45a
SEA
11:10p
11h 25m
1 stop
Depart: Sat Jul 8 2017 Return: Tue Jul 11 2017 Trip spans 4 days
American Airlines
American Airlines
SEA
9:26p
ISP
5:40a
8h 14m
1 stop
ISP
1:55p
SEA
11:11p
9h 16m
1 stop
Depart: Wed Nov 8 2017 Return: Sun Nov 12 2017 Trip spans 5 days
Southwest
Southwest
SEA
3:20a
ISP
3:40p
12h 20m
3 stops
ISP
6:55a
SEA
3:25p
8h 30m
1 stop
Depart: Wed Jul 5 2017 Return: Tue Jul 11 2017 Trip spans 7 days
American Airlines
American Airlines
SEA
9:26p
ISP
5:40a
8h 14m
1 stop
ISP
1:55p
SEA
11:11p
9h 16m
1 stop
Depart: Fri Sep 1 2017 Return: Fri Sep 8 2017 Trip spans 8 days
Southwest
Southwest
SEA
1:35a
ISP
11:40a
10h 05m
3 stops
ISP
7:15a
SEA
6:25p
11h 10m
2 stops
Depart: Mon Jul 3 2017 Return: Tue Jul 4 2017 Trip spans 2 days
American Airlines
American Airlines
SEA
7:55a
ISP
3:05p
7h 10m
1 stop
ISP
2:09a
SEA
10:04a
7h 55m
1 stop
Depart: Sat Dec 2 2017 Return: Sat Dec 16 2017 Trip spans 15 days
Southwest
Southwest
SEA
12:30a
ISP
2:35p
14h 05m
3 stops
ISP
7:15a
SEA
6:25p
11h 10m
1 stop
Depart: Thu Jul 6 2017 Return: Tue Jul 11 2017 Trip spans 6 days
American Airlines
American Airlines
SEA
9:26p
ISP
5:40a
8h 14m
1 stop
ISP
1:55p
SEA
11:11p
9h 16m
1 stop
Depart: Sun Aug 27 2017 Return: Thu Aug 31 2017 Trip spans 5 days
Southwest
Southwest
SEA
3:00a
ISP
4:30p
13h 30m
1 stop
ISP
5:15a
SEA
8:40p
15h 25m
3 stops
Depart: Wed Aug 16 2017 Return: Wed Aug 23 2017 Trip spans 8 days
American Airlines
American Airlines
SEA
7:59a
ISP
3:04p
7h 05m
1 stop
ISP
2:09p
SEA
10:42p
8h 33m
1 stop
Depart: Thu Aug 17 2017 Return: Wed Aug 23 2017 Trip spans 7 days
American Airlines
American Airlines
SEA
7:59a
ISP
3:04p
7h 05m
1 stop
ISP
2:09p
SEA
10:42p
8h 33m
1 stop
Depart: Fri Aug 4 2017 Return: Fri Aug 18 2017 Trip spans 15 days
Southwest
Southwest
SEA
2:20a
ISP
5:25p
15h 05m
3 stops
ISP
8:25a
SEA
8:40p
12h 15m
2 stops
Depart: Wed Jul 12 2017 Return: Tue Jul 18 2017 Trip spans 7 days
American Airlines
American Airlines
SEA
7:59a
ISP
3:04p
7h 05m
1 stop
ISP
1:55p
SEA
11:11p
9h 16m
1 stop
Depart: Fri Jul 28 2017 Return: Fri Aug 4 2017 Trip spans 8 days
Southwest
Southwest
SEA
2:20a
ISP
5:25p
15h 05m
3 stops
ISP
2:05a
SEA
3:20p
13h 15m
3 stops
Depart: Sun Jul 9 2017 Return: Tue Jul 11 2017 Trip spans 3 days
American Airlines
American Airlines
SEA
9:26p
ISP
5:40a
8h 14m
1 stop
ISP
1:55p
SEA
11:11p
9h 16m
1 stop
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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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.

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Airports
Origin

Seattle
$447
Destination

Islip
$447