Find Cheap Flights from Seattle/Tacoma Intl to Islip Long Island (SEA - ISP)

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/Tacoma Intl to Islip Long Island

(Round-trip)
Depart: Thu Jan 11 2018 Return: Mon Jan 15 2018 Trip spans 5 days
Frontier
Frontier
SEA
12:00a
ISP
7:52p
19h 52m
2 stops
ISP
12:00a
SEA
4:41p
40h 41m
2 stops
Depart: Fri Mar 16 2018 Return: Fri Mar 23 2018 Trip spans 8 days
Southwest
Southwest
SEA
12:00a
ISP
6:50a
6h 50m
1 stop
ISP
12:00a
SEA
12:55p
12h 55m
1 stop
Depart: Sat Apr 28 2018 Return: Tue May 1 2018 Trip spans 4 days
American Airlines
American Airlines
SEA
12:00a
ISP
6:59a
6h 59m
1 stop
ISP
12:00a
SEA
8:19a
8h 19m
1 stop
Depart: Thu Jan 11 2018 Return: Mon Jan 15 2018 Trip spans 5 days
$1372
Select
Multiple Airlines
Multiple Airlines
SEA
12:00a
ISP
10:54a
10h 54m
2 stops
ISP
12:00a
SEA
11:42a
11h 42m
2 stops
Depart: Mon Dec 25 2017 Return: Sat Jan 6 2018 Trip spans 13 days
Southwest
Southwest
SEA
12:00a
ISP
6:55a
6h 55m
1 stop
ISP
12:00a
SEA
11:10a
11h 10m
1 stop
Depart: Sat Dec 30 2017 Return: Mon Jan 1 2018 Trip spans 3 days
$1047
Select
Southwest
Southwest
SEA
12:00a
ISP
7:05a
7h 05m
1 stop
ISP
12:00a
SEA
1:10p
13h 10m
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.

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Airports
Origin

Seattle
$325
Destination

Islip
$325