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: Wed Mar 2 2016 Return: Sat Mar 5 2016 Trip spans 4 days
American Airlines
American Airlines
DCA
12:52a
ISP
6:28a
5h 36m
1 stop
ISP
4:25a
DCA
7:27a
3h 02m
1 stop
Depart: Sun Mar 6 2016 Return: Wed Mar 9 2016 Trip spans 4 days
American Airlines
American Airlines
DCA
3:34a
ISP
6:28a
2h 54m
1 stop
ISP
1:39p
DCA
6:43p
5h 04m
1 stop
Depart: Tue Feb 16 2016 Return: Tue Mar 1 2016 Trip spans 15 days
American Airlines
American Airlines
DCA
1:22a
ISP
6:28a
5h 06m
1 stop
ISP
1:40p
DCA
6:43p
5h 03m
1 stop
Depart: Wed Feb 17 2016 Return: Tue Mar 1 2016 Trip spans 14 days
American Airlines
American Airlines
DCA
1:22a
ISP
6:28a
5h 06m
1 stop
ISP
1:40p
DCA
6:43p
5h 03m
1 stop
Depart: Thu Feb 18 2016 Return: Tue Mar 1 2016 Trip spans 13 days
American Airlines
American Airlines
DCA
12:52a
ISP
6:28a
5h 36m
1 stop
ISP
1:40p
DCA
6:43p
5h 03m
1 stop
Depart: Tue Feb 23 2016 Return: Tue Mar 1 2016 Trip spans 8 days
American Airlines
American Airlines
DCA
12:52a
ISP
6:28a
5h 36m
1 stop
ISP
1:40p
DCA
6:43p
5h 03m
1 stop
Depart: Wed Feb 24 2016 Return: Tue Mar 1 2016 Trip spans 7 days
American Airlines
American Airlines
DCA
12:52a
ISP
6:28a
5h 36m
1 stop
ISP
1:40p
DCA
6:43p
5h 03m
1 stop
Depart: Thu Feb 25 2016 Return: Tue Mar 1 2016 Trip spans 6 days
American Airlines
American Airlines
DCA
2:40a
ISP
6:28a
3h 48m
1 stop
ISP
1:40p
DCA
6:43p
5h 03m
1 stop
Depart: Fri Feb 26 2016 Return: Tue Mar 1 2016 Trip spans 5 days
American Airlines
American Airlines
DCA
1:22a
ISP
6:28a
5h 06m
1 stop
ISP
1:40p
DCA
6:43p
5h 03m
1 stop
Depart: Sat Feb 27 2016 Return: Tue Mar 1 2016 Trip spans 4 days
American Airlines
American Airlines
DCA
2:30a
ISP
6:28a
3h 58m
1 stop
ISP
1:40p
DCA
6:43p
5h 03m
1 stop
Depart: Sun Feb 28 2016 Return: Tue Mar 1 2016 Trip spans 3 days
American Airlines
American Airlines
DCA
12:59a
ISP
6:28a
5h 29m
1 stop
ISP
1:40p
DCA
6:43p
5h 03m
1 stop
Depart: Mon Feb 15 2016 Return: Mon Feb 22 2016 Trip spans 8 days
American Airlines
American Airlines
DCA
8:37a
ISP
1:14p
4h 37m
1 stop
ISP
1:40p
DCA
6:43p
5h 03m
1 stop
Depart: Sun Feb 14 2016 Return: Thu Feb 25 2016 Trip spans 12 days
American Airlines
American Airlines
DCA
12:59a
ISP
6:28a
5h 29m
1 stop
ISP
2:30a
DCA
7:51a
5h 21m
1 stop
Depart: Tue Mar 1 2016 Return: Wed Mar 2 2016 Trip spans 2 days
American Airlines
American Airlines
DCA
8:37a
ISP
1:14p
4h 37m
1 stop
ISP
1:40p
DCA
6:43p
5h 03m
1 stop
Depart: Thu Mar 3 2016 Return: Sat Mar 5 2016 Trip spans 3 days
American Airlines
American Airlines
DCA
1:22a
ISP
6:28a
5h 06m
1 stop
ISP
4:25a
DCA
7:27a
3h 02m
1 stop
Depart: Tue Mar 8 2016 Return: Wed Mar 9 2016 Trip spans 2 days
American Airlines
American Airlines
DCA
12:52a
ISP
6:28a
5h 36m
1 stop
ISP
1:39p
DCA
6:43p
5h 04m
1 stop
Depart: Sat Mar 12 2016 Return: Mon Mar 14 2016 Trip spans 2 days
American Airlines
American Airlines
DCA
2:30a
ISP
6:28a
3h 58m
1 stop
ISP
2:39p
DCA
7:43p
5h 04m
1 stop
Depart: Fri Mar 25 2016 Return: Fri Apr 1 2016 Trip spans 8 days
American Airlines
American Airlines
IAD
7:00a
ISP
5:58p
10h 58m
2 stops
ISP
7:53a
IAD
3:08p
7h 15m
2 stops
Depart: Wed Mar 9 2016 Return: Thu Mar 17 2016 Trip spans 8 days
$1708
Select
Linear Air Taxi
Linear Air Taxi
IAD
4:00a
ISP
6:03a
2h 03m
nonstop
ISP
4:00p
IAD
6:03p
2h 03m
nonstop
Depart: Thu Jun 16 2016 Return: Fri Jul 1 2016 Trip spans 16 days
$3635
Select
Linear Air Taxi
Linear Air Taxi
DCA
8:00a
ISP
9:14a
1h 14m
nonstop
ISP
1:00p
DCA
2:14p
1h 14m
nonstop
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
3064 7:40 am 8:45 am Jan 30 - Mar 5
884 9:55 am 11:00 am Mar 14 - Mar 25
884 9:55 am 11:00 am Mar 10 - Mar 11
2871 10:30 am 11:35 am Feb 11 - Mar 8
3309 10:40 am 11:45 am Jan 30 - Mar 5
4541 10:40 am 11:45 am Feb 14 - Mar 6
5775 10:40 am 11:45 am Mar 9 - Mar 9
4109 10:45 am 11:50 am Mar 12 - Mar 12
2300 12:50 pm 1:50 pm Mar 13 - Apr 1
2300 12:50 pm 1:50 pm Mar 10 - Mar 11
63 2:15 pm 3:15 pm Mar 12 - Mar 12
2811 3:45 pm 4:45 pm Feb 8 - Mar 8
5734 3:45 pm 4:45 pm Mar 9 - Mar 9
3165 4:20 pm 5:20 pm Jan 30 - Mar 5
1030 5:00 pm 6:05 pm Mar 14 - Mar 25
1030 5:00 pm 6:05 pm Mar 10 - Mar 11
22 5:00 pm 6:05 pm Mar 13 - Mar 20
1501 6:00 pm 7:05 pm Feb 8 - Mar 8
3964 6:00 pm 7:05 pm Mar 9 - Mar 9
917 8:15 pm 9:20 pm Mar 10 - Mar 11
917 8:15 pm 9:20 pm Mar 13 - Apr 11
1534 9:10 pm 10:15 pm Feb 13 - Feb 20
1993 9:10 pm 10:15 pm Feb 27 - Feb 27
3186 9:10 pm 10:15 pm Mar 5 - Mar 5
1386 9:20 pm 10:20 pm Mar 12 - Mar 12
5398 10:05 pm 11:05 pm Mar 9 - Mar 9
1887 10:10 pm 11:10 pm Mar 13 - Apr 11
1887 10:10 pm 11:10 pm Mar 10 - Mar 11
1546 10:25 pm 11:25 pm Feb 8 - Mar 8
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

We make every attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

We’re not the seller
At KAYAK we don’t set prices, so it’s not possible for us to guarantee what other companies are selling.

We aggregate tons 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 don'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.

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
only $539
only $195
Destination

Islip
$195