Browse Origins:
Browse Destinations:

Find Flight Deals 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: Fri Sep 4 2015 Return: Sun Sep 6 2015 Trip spans 3 days
US Airways
US Airways
DCA
2:25a
ISP
7:27a
5h 02m
1 stop
ISP
9:53a
DCA
2:27p
4h 34m
1 stop
Depart: Tue Jun 9 2015 Return: Thu Jun 11 2015 Trip spans 3 days
US Airways
US Airways
DCA
3:42a
ISP
7:27a
3h 45m
1 stop
ISP
2:42p
DCA
7:52p
5h 10m
1 stop
Depart: Mon Aug 24 2015 Return: Fri Aug 28 2015 Trip spans 5 days
American Airlines
American Airlines
DCA
2:00a
ISP
7:27a
5h 27m
1 stop
ISP
2:50p
DCA
7:52p
5h 02m
1 stop
Depart: Tue Jun 16 2015 Return: Fri Jun 19 2015 Trip spans 4 days
American Airlines
American Airlines
DCA
7:40a
ISP
10:22a
2h 42m
1 stop
ISP
2:42p
DCA
6:28p
3h 46m
1 stop
Depart: Thu Jul 23 2015 Return: Fri Jul 24 2015 Trip spans 2 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 Jun 6 2015 Return: Mon Jun 8 2015 Trip spans 3 days
American Airlines
American Airlines
DCA
5:45a
ISP
10:22a
4h 37m
1 stop
ISP
2:42p
DCA
6:28p
3h 46m
1 stop
Depart: Tue Jul 21 2015 Return: Thu Jul 23 2015 Trip spans 3 days
American Airlines
American Airlines
DCA
2:00a
ISP
7:27a
5h 27m
1 stop
ISP
2:50p
DCA
7:52p
5h 02m
1 stop
Depart: Mon Jul 27 2015 Return: Tue Jul 28 2015 Trip spans 2 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 Jul 28 2015 Return: Thu Jul 30 2015 Trip spans 3 days
American Airlines
American Airlines
DCA
3:42a
ISP
7:27a
3h 45m
1 stop
ISP
2:50p
DCA
7:52p
5h 02m
1 stop
Depart: Wed Jul 29 2015 Return: Thu Jul 30 2015 Trip spans 2 days
American Airlines
American Airlines
DCA
2:25a
ISP
7:27a
5h 02m
1 stop
ISP
2:50p
DCA
7:52p
5h 02m
1 stop
Depart: Tue Aug 4 2015 Return: Thu Aug 6 2015 Trip spans 3 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: Wed Aug 5 2015 Return: Thu Aug 6 2015 Trip spans 2 days
American Airlines
American Airlines
DCA
3:42a
ISP
7:27a
3h 45m
1 stop
ISP
2:50p
DCA
6:28p
3h 38m
1 stop
Depart: Mon Jun 15 2015 Return: Thu Jun 18 2015 Trip spans 4 days
American Airlines
American Airlines
DCA
3:42a
ISP
7:27a
3h 45m
1 stop
ISP
2:42p
DCA
6:28p
3h 46m
1 stop
Depart: Tue Jun 2 2015 Return: Thu Jun 11 2015 Trip spans 10 days
American Airlines
American Airlines
DCA
3:41a
ISP
7:23a
3h 42m
1 stop
ISP
2:42p
DCA
7:52p
5h 10m
1 stop
Depart: Wed Jun 3 2015 Return: Fri Jun 5 2015 Trip spans 3 days
American Airlines
American Airlines
DCA
6:10a
ISP
10:20a
4h 10m
1 stop
ISP
2:42p
DCA
7:52p
5h 10m
1 stop
Depart: Wed Jun 10 2015 Return: Sat Jun 13 2015 Trip spans 4 days
US Airways
US Airways
DCA
7:40a
ISP
10:22a
2h 42m
1 stop
ISP
10:47a
DCA
4:24p
5h 37m
1 stop
Depart: Thu Jun 25 2015 Return: Fri Jun 26 2015 Trip spans 2 days
US Airways
US Airways
DCA
2:25a
ISP
7:27a
5h 02m
1 stop
ISP
2:42p
DCA
7:52p
5h 10m
1 stop
Depart: Mon Jun 1 2015 Return: Thu Jun 4 2015 Trip spans 4 days
American Airlines
American Airlines
DCA
2:00a
ISP
7:23a
5h 23m
1 stop
ISP
10:47a
DCA
5:01p
6h 14m
1 stop
Depart: Wed Nov 25 2015 Return: Sun Nov 29 2015 Trip spans 5 days
US Airways
US Airways
IAD
12:20a
ISP
6:23a
6h 03m
2 stops
ISP
6:48a
IAD
12:28p
5h 40m
2 stops
Depart: Sat Jul 18 2015 Return: Sun Jul 19 2015 Trip spans 2 days
$1797
Select
Linear Air Taxi
Linear Air Taxi
IAD
5:00a
ISP
6:55a
1h 55m
nonstop
ISP
1:00p
IAD
2:55p
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
2140 9:30 am 10:35 am Jul 4 - Jul 4
4572 9:30 am 10:35 am Jun 13 - Jun 27
1637 9:55 am 11:00 am Jul 3 - Jul 3
3817 9:55 am 11:00 am Jun 7 - Aug 2
833 9:55 am 11:00 am Jun 8 - Jul 2
842 10:10 am 11:15 am Jun 1 - Jun 5
1056 10:20 am 11:25 am Jun 6 - Jun 6
2569 11:30 am 12:35 pm Jul 4 - Jul 4
4430 11:30 am 12:35 pm Jun 13 - Jun 27
2606 1:40 pm 2:45 pm Jun 7 - Aug 7
752 1:50 pm 2:50 pm May 31 - Jun 5
2551 2:00 pm 3:00 pm May 30 - Jun 6
2836 4:15 pm 5:15 pm May 30 - Jun 6
3728 4:40 pm 5:40 pm Jun 13 - Aug 8
4017 4:45 pm 5:45 pm May 31 - Jun 5
1959 6:00 pm 7:05 pm Jun 7 - Jul 2
1959 6:15 pm 7:20 pm Jul 3 - Jul 3
4684 7:00 pm 8:05 pm Jul 4 - Jul 4
2452 8:00 pm 9:10 pm May 31 - Jun 5
1427 8:15 pm 9:20 pm Jun 7 - Jul 2
2199 8:15 pm 9:20 pm Jul 3 - Jul 3
1201 8:35 pm 9:45 pm Jun 6 - Jun 6
4403 9:20 pm 10:25 pm Jun 13 - Jun 27
232 10:10 pm 11:15 pm Jun 1 - Jun 5
4202 10:20 pm 11:25 pm Jun 7 - Jul 2
Airports
Origin

Washington
only $741
only $295
Destination

Islip
$295