Find Deals on Flights from Washington to Islip Long Island (WAS - 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.
Compare vs. KAYAK all | none
Browse Origins:
Browse Destinations:

Dates flexible? Here are the best fares found in the past 48 hours...

Book cheap flights from Washington to Islip Long Island

(Round-trip)
Depart: Sun Sep 11 2016 Return: Wed Sep 14 2016 Trip spans 4 days
Depart: Mon Aug 1 2016 Return: Thu Aug 4 2016 Trip spans 4 days
Depart: Thu Oct 20 2016 Return: Sat Oct 29 2016 Trip spans 10 days
Depart: Wed Dec 21 2016 Return: Sun Jan 15 2017 Trip spans 26 days
Depart: Tue Aug 9 2016 Return: Thu Aug 11 2016 Trip spans 3 days
Depart: Wed Aug 3 2016 Return: Thu Aug 4 2016 Trip spans 2 days
Depart: Wed Aug 17 2016 Return: Fri Aug 19 2016 Trip spans 3 days
Depart: Fri Sep 30 2016 Return: Sun Oct 2 2016 Trip spans 3 days
Depart: Tue Aug 16 2016 Return: Thu Aug 18 2016 Trip spans 3 days
Depart: Sat Aug 27 2016 Return: Mon Aug 29 2016 Trip spans 3 days
Depart: Mon Sep 19 2016 Return: Thu Sep 22 2016 Trip spans 4 days
Depart: Sun Jul 31 2016 Return: Sat Aug 6 2016 Trip spans 7 days
Depart: Thu Aug 11 2016 Return: Tue Aug 16 2016 Trip spans 6 days
Depart: Fri Aug 26 2016 Return: Sun Aug 28 2016 Trip spans 3 days
Depart: Fri Oct 7 2016 Return: Sun Oct 9 2016 Trip spans 3 days
Depart: Fri Oct 14 2016 Return: Sat Oct 15 2016 Trip spans 2 days
Depart: Thu Dec 8 2016 Return: Sun Dec 11 2016 Trip spans 4 days
Depart: Mon Aug 29 2016 Return: Tue Aug 30 2016 Trip spans 2 days
Depart: Thu Jul 28 2016 Return: Fri Jul 29 2016 Trip spans 2 days
Depart: Fri Sep 9 2016 Return: Sun Sep 11 2016 Trip spans 3 days
Select an airline:  Southwest
Direct flights WAS to ISP on Southwest
Flight # Depart BWI Arrive ISP Sun Mon Tue Wed Thu Fri Sat Valid Between
667 10:20 am 11:25 am Jul 24 - Aug 5
932 10:25 am 11:35 am Aug 7 - Sep 2
1289 10:40 am 11:45 am Aug 6 - Aug 6
3351 10:50 am 11:55 am Aug 13 - Aug 27
654 12:05 pm 1:05 pm Aug 7 - Sep 2
5329 2:10 pm 3:15 pm Jul 23 - Aug 6
2592 3:55 pm 5:00 pm Aug 7 - Oct 30
526 4:20 pm 5:25 pm Jul 30 - Aug 6
4477 4:30 pm 5:35 pm Jul 25 - Aug 5
3266 4:35 pm 5:40 pm Aug 13 - Aug 27
3146 6:20 pm 7:25 pm Jul 24 - Aug 5
1439 6:25 pm 7:30 pm Aug 13 - Aug 27
2903 7:15 pm 8:25 pm Aug 7 - Sep 2
705 8:20 pm 9:25 pm Jul 24 - Aug 5
1756 9:05 pm 10:20 pm Aug 13 - Oct 1
3743 9:15 pm 10:25 pm Jul 23 - Aug 6
394 9:55 pm 11:00 pm Aug 7 - Nov 4
2803 10:50 pm 11:55 pm Jul 24 - Aug 5
* 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.

We compile tonnes of data for you
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,
please send us an email and someone from our team will get back to you promptly.

Airports
Origin

Washington
$228
Destination

Islip
$228