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Find Deals on Flights from Washington to Islip Long Island (WAS - ISP)

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: Tue Aug 18 2015 Return: Tue Aug 25 2015 Trip spans 8 days
American Airlines
American Airlines
DCA
2:00a
ISP
7:27a
5h 27m
1 stop
ISP
2:50p
DCA
6:28p
3h 38m
1 stop
Depart: Sun Aug 23 2015 Return: Tue Aug 25 2015 Trip spans 3 days
American Airlines
American Airlines
DCA
4:30a
ISP
7:27a
2h 57m
1 stop
ISP
2:50p
DCA
6:28p
3h 38m
1 stop
Depart: Mon Aug 17 2015 Return: Tue Aug 25 2015 Trip spans 9 days
American Airlines
American Airlines
DCA
2:25a
ISP
7:27a
5h 02m
1 stop
ISP
2:50p
DCA
6:28p
3h 38m
1 stop
Depart: Tue Nov 24 2015 Return: Fri Nov 27 2015 Trip spans 4 days
US Airways
US Airways
DCA
1:30a
ISP
6:23a
4h 53m
1 stop
ISP
4:10a
DCA
7:40a
3h 30m
1 stop
Depart: Sat Oct 10 2015 Return: Mon Oct 12 2015 Trip spans 3 days
US Airways
US Airways
DCA
3:45a
ISP
7:20a
3h 35m
1 stop
ISP
2:50p
DCA
7:40p
4h 50m
1 stop
Depart: Sat Oct 24 2015 Return: Mon Oct 26 2015 Trip spans 3 days
American Airlines
American Airlines
DCA
3:45a
ISP
7:20a
3h 35m
1 stop
ISP
2:50p
DCA
6:18p
3h 28m
1 stop
Depart: Wed Aug 19 2015 Return: Tue Aug 25 2015 Trip spans 7 days
American Airlines
American Airlines
DCA
6:00a
ISP
10:22a
4h 22m
1 stop
ISP
2:50p
DCA
6:28p
3h 38m
1 stop
Depart: Thu Aug 20 2015 Return: Tue Aug 25 2015 Trip spans 6 days
American Airlines
American Airlines
DCA
2:25a
ISP
7:27a
5h 02m
1 stop
ISP
2:50p
DCA
6:28p
3h 38m
1 stop
Depart: Sat Aug 22 2015 Return: Tue Aug 25 2015 Trip spans 4 days
American Airlines
American Airlines
DCA
5:45a
ISP
10:22a
4h 37m
1 stop
ISP
2:50p
DCA
6:28p
3h 38m
1 stop
Depart: Tue Aug 11 2015 Return: Wed Aug 12 2015 Trip spans 2 days
US Airways
US Airways
DCA
6:00a
ISP
10:22a
4h 22m
1 stop
ISP
3:35a
DCA
6:58a
3h 23m
1 stop
Depart: Tue Sep 22 2015 Return: Fri Sep 25 2015 Trip spans 4 days
US Airways
US Airways
DCA
6:05a
ISP
10:17a
4h 12m
1 stop
ISP
2:50p
DCA
6:18p
3h 28m
1 stop
Depart: Sat Sep 26 2015 Return: Mon Sep 28 2015 Trip spans 3 days
US Airways
US Airways
DCA
5:45a
ISP
10:17a
4h 32m
1 stop
ISP
2:50p
DCA
6:18p
3h 28m
1 stop
Depart: Fri Oct 2 2015 Return: Tue Oct 6 2015 Trip spans 5 days
US Airways
US Airways
DCA
3:35a
ISP
7:20a
3h 45m
1 stop
ISP
2:50p
DCA
6:18p
3h 28m
1 stop
Depart: Fri Oct 30 2015 Return: Sun Nov 1 2015 Trip spans 3 days
US Airways
US Airways
DCA
2:25a
ISP
7:20a
4h 55m
1 stop
ISP
2:35a
DCA
5:55a
3h 20m
1 stop
Depart: Wed Sep 2 2015 Return: Mon Sep 7 2015 Trip spans 6 days
American Airlines
American Airlines
DCA
3:42a
ISP
7:27a
3h 45m
1 stop
ISP
3:35a
DCA
8:51a
5h 16m
1 stop
Depart: Thu Sep 3 2015 Return: Mon Sep 7 2015 Trip spans 5 days
US Airways
US Airways
DCA
2:25a
ISP
7:27a
5h 02m
1 stop
ISP
3:35a
DCA
8:51a
5h 16m
1 stop
Depart: Sat Sep 5 2015 Return: Mon Sep 7 2015 Trip spans 3 days
US Airways
US Airways
DCA
5:45a
ISP
10:22a
4h 37m
1 stop
ISP
3:35a
DCA
8:51a
5h 16m
1 stop
Depart: Sun Sep 6 2015 Return: Mon Sep 7 2015 Trip spans 2 days
American Airlines
American Airlines
DCA
9:59a
ISP
2:25p
4h 26m
1 stop
ISP
3:35a
DCA
8:51a
5h 16m
1 stop
Depart: Tue Aug 4 2015 Return: Tue Aug 11 2015 Trip spans 8 days
US Airways
US Airways
IAD
1:20a
ISP
10:22a
9h 02m
2 stops
ISP
2:50p
IAD
4:47a
13h 57m
2 stops
Depart: Tue Jul 28 2015 Return: Wed Jul 29 2015 Trip spans 2 days
Linear Air Taxi
Linear Air Taxi
IAD
2:00a
ISP
3:55a
1h 55m
nonstop
ISP
2:00p
IAD
3:55p
1h 55m
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
4572 9:30 am 10:35 am Jul 11 - Aug 8
3817 9:55 am 11:00 am Jun 28 - Aug 2
833 9:55 am 11:00 am Jul 10 - Aug 7
2281 10:05 am 11:10 am Aug 9 - Aug 30
861 10:05 am 11:10 am Aug 10 - Sep 4
4430 11:30 am 12:35 pm Jul 11 - Aug 8
549 12:50 pm 1:50 pm Aug 9 - Aug 30
549 12:50 pm 1:50 pm Aug 10 - Aug 14
2606 1:40 pm 2:45 pm Jun 28 - Aug 7
1335 3:55 pm 5:00 pm Aug 9 - Sep 4
3728 4:40 pm 5:40 pm Jun 27 - Aug 8
1959 6:00 pm 7:05 pm Jul 10 - Aug 7
1427 8:15 pm 9:20 pm Jul 10 - Aug 7
982 8:25 pm 9:30 pm Aug 9 - Sep 4
4403 9:20 pm 10:25 pm Jul 11 - Aug 8
1961 10:00 pm 11:00 pm Aug 9 - Aug 14
4202 10:20 pm 11:25 pm Jul 10 - Aug 7
Airports
Origin

Washington
only $511
only $245
Destination

Islip
$245