Find Deals on 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
Students
under 26
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: Tue Jan 17 2017 Return: Wed Jan 18 2017 Trip spans 2 days
Southwest
Southwest
SEA
8:25a
ISP
3:20p
6h 55m
1 stop
ISP
6:20a
SEA
2:55p
8h 35m
1 stop
Depart: Sat Jan 7 2017 Return: Tue Jan 10 2017 Trip spans 4 days
American Airlines
American Airlines
SEA
1:20a
ISP
11:00a
9h 40m
1 stop
ISP
8:15a
SEA
7:26p
11h 11m
1 stop
Depart: Thu Jan 5 2017 Return: Wed Feb 15 2017 Trip spans 42 days
Southwest
Southwest
SEA
8:25a
ISP
3:25p
7h 00m
1 stop
ISP
6:20a
SEA
2:55p
8h 35m
1 stop
Depart: Wed Jan 11 2017 Return: Wed Feb 15 2017 Trip spans 36 days
Southwest
Southwest
SEA
8:25a
ISP
3:20p
6h 55m
1 stop
ISP
6:20a
SEA
2:55p
8h 35m
1 stop
Depart: Sat Dec 10 2016 Return: Fri Dec 16 2016 Trip spans 7 days
American Airlines
American Airlines
SEA
3:20a
ISP
10:49a
7h 29m
1 stop
ISP
10:20a
SEA
6:49p
8h 29m
1 stop
Depart: Wed Mar 15 2017 Return: Mon Mar 20 2017 Trip spans 6 days
Southwest
Southwest
SEA
9:20a
ISP
4:30p
7h 10m
1 stop
ISP
7:50a
SEA
3:45p
7h 55m
1 stop
Depart: Fri Jan 6 2017 Return: Wed Jan 11 2017 Trip spans 6 days
Southwest
Southwest
SEA
8:25a
ISP
3:20p
6h 55m
1 stop
ISP
6:20a
SEA
2:55p
8h 35m
1 stop
Depart: Sat Feb 4 2017 Return: Fri Feb 10 2017 Trip spans 7 days
American Airlines
American Airlines
SEA
2:53a
ISP
1:58p
11h 05m
2 stops
ISP
8:15a
SEA
7:26p
11h 11m
1 stop
Depart: Mon Feb 6 2017 Return: Sat Feb 11 2017 Trip spans 6 days
American Airlines
American Airlines
SEA
7:15p
ISP
9:15a
14h 00m
2 stops
ISP
8:15a
SEA
7:26p
11h 11m
1 stop
Depart: Fri Feb 3 2017 Return: Thu Feb 9 2017 Trip spans 7 days
Southwest
Southwest
SEA
8:25a
ISP
3:20p
6h 55m
1 stop
ISP
6:20a
SEA
2:55p
8h 35m
1 stop
Depart: Thu Jan 19 2017 Return: Tue Jan 24 2017 Trip spans 6 days
American Airlines
American Airlines
SEA
1:00a
ISP
1:58p
12h 58m
2 stops
ISP
8:15a
SEA
7:26p
11h 11m
1 stop
Depart: Wed Mar 1 2017 Return: Sun Mar 5 2017 Trip spans 5 days
Southwest
Southwest
SEA
8:25a
ISP
3:20p
6h 55m
1 stop
ISP
6:40a
SEA
2:30p
7h 50m
1 stop
Depart: Thu Feb 2 2017 Return: Mon Feb 6 2017 Trip spans 5 days
American Airlines
American Airlines
SEA
1:00a
ISP
1:58p
12h 58m
2 stops
ISP
8:15a
SEA
7:26p
11h 11m
1 stop
Depart: Wed Feb 8 2017 Return: Tue Feb 14 2017 Trip spans 7 days
American Airlines
American Airlines
SEA
1:10a
ISP
1:58p
12h 48m
2 stops
ISP
8:15a
SEA
7:26p
11h 11m
1 stop
Depart: Fri Jan 20 2017 Return: Wed Jan 25 2017 Trip spans 6 days
American Airlines
American Airlines
SEA
1:30a
ISP
4:25a
26h 55m
2 stops
ISP
8:15a
SEA
7:26p
11h 11m
1 stop
Depart: Sat Jan 21 2017 Return: Wed Jan 25 2017 Trip spans 5 days
American Airlines
American Airlines
SEA
3:00a
ISP
1:58p
10h 58m
2 stops
ISP
8:15a
SEA
7:26p
11h 11m
1 stop
Depart: Sun Dec 11 2016 Return: Sat Dec 17 2016 Trip spans 7 days
Southwest
Southwest
SEA
8:15a
ISP
3:35p
7h 20m
1 stop
ISP
6:30a
SEA
2:45p
8h 15m
1 stop
Depart: Sun Jan 22 2017 Return: Fri Jan 27 2017 Trip spans 6 days
American Airlines
American Airlines
SEA
1:30a
ISP
4:25a
26h 55m
2 stops
ISP
8:15a
SEA
7:26p
11h 11m
1 stop
Depart: Mon Jan 23 2017 Return: Fri Jan 27 2017 Trip spans 5 days
American Airlines
American Airlines
SEA
1:30a
ISP
1:58p
12h 28m
2 stops
ISP
8:15a
SEA
7:26p
11h 11m
1 stop
Depart: Tue Jan 24 2017 Return: Thu Feb 2 2017 Trip spans 10 days
American Airlines
American Airlines
SEA
1:30a
ISP
4:25a
26h 55m
2 stops
ISP
8:15a
SEA
7:26p
11h 11m
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

Seattle
$396
Destination

Islip
$396