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

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

Book cheap flights from Islip Long Island to Washington

(Round-trip)
Depart: Tue Aug 25 2015 Return: Sun Aug 30 2015 Trip spans 6 days
American Airlines
American Airlines
ISP
2:50p
DCA
6:28p
3h 38m
1 stop
DCA
4:30a
ISP
10:22a
5h 52m
1 stop
Depart: Fri Aug 7 2015 Return: Tue Aug 11 2015 Trip spans 5 days
American Airlines
American Airlines
ISP
2:50p
DCA
6:28p
3h 38m
1 stop
DCA
6:00a
ISP
10:22a
4h 22m
1 stop
Depart: Tue Jul 28 2015 Return: Tue Aug 11 2015 Trip spans 15 days
US Airways
US Airways
ISP
2:50p
DCA
7:52p
5h 02m
1 stop
DCA
6:00a
ISP
10:22a
4h 22m
1 stop
Depart: Tue Aug 4 2015 Return: Tue Aug 11 2015 Trip spans 8 days
American Airlines
American Airlines
ISP
2:50p
DCA
7:52p
5h 02m
1 stop
DCA
6:00a
ISP
10:22a
4h 22m
1 stop
Depart: Tue Aug 11 2015 Return: Tue Aug 18 2015 Trip spans 8 days
US Airways
US Airways
ISP
2:50p
DCA
7:52p
5h 02m
1 stop
DCA
6:00a
ISP
10:22a
4h 22m
1 stop
Depart: Wed Oct 7 2015 Return: Sat Oct 10 2015 Trip spans 4 days
US Airways
US Airways
ISP
3:20a
DCA
6:58a
3h 38m
1 stop
DCA
3:45a
ISP
7:20a
3h 35m
1 stop
Depart: Fri Jul 24 2015 Return: Sat Aug 1 2015 Trip spans 9 days
US Airways
US Airways
ISP
2:50p
DCA
6:28p
3h 38m
1 stop
DCA
5:45a
ISP
10:22a
4h 37m
1 stop
Depart: Tue Sep 1 2015 Return: Mon Sep 7 2015 Trip spans 7 days
US Airways
US Airways
ISP
2:50p
DCA
7:52p
5h 02m
1 stop
DCA
4:07a
ISP
7:27a
3h 20m
1 stop
Depart: Fri Sep 4 2015 Return: Mon Sep 7 2015 Trip spans 4 days
US Airways
US Airways
ISP
2:50p
DCA
6:28p
3h 38m
1 stop
DCA
4:07a
ISP
7:27a
3h 20m
1 stop
Depart: Fri Nov 20 2015 Return: Sun Nov 22 2015 Trip spans 3 days
US Airways
US Airways
ISP
8:53a
DCA
1:27p
4h 34m
1 stop
DCA
1:00a
ISP
3:42a
2h 42m
1 stop
Depart: Wed Nov 25 2015 Return: Fri Nov 27 2015 Trip spans 3 days
American Airlines
American Airlines
ISP
8:53a
DCA
1:27p
4h 34m
1 stop
DCA
2:43a
ISP
8:28a
5h 45m
1 stop
Depart: Thu Jul 30 2015 Return: Tue Aug 11 2015 Trip spans 13 days
American Airlines
American Airlines
ISP
2:50p
DCA
7:52p
5h 02m
1 stop
DCA
6:00a
ISP
10:22a
4h 22m
1 stop
Depart: Mon Aug 3 2015 Return: Tue Aug 11 2015 Trip spans 9 days
US Airways
US Airways
ISP
2:50p
DCA
7:52p
5h 02m
1 stop
DCA
6:00a
ISP
10:22a
4h 22m
1 stop
Depart: Wed Aug 5 2015 Return: Tue Aug 11 2015 Trip spans 7 days
American Airlines
American Airlines
ISP
2:50p
DCA
6:28p
3h 38m
1 stop
DCA
6:00a
ISP
10:22a
4h 22m
1 stop
Depart: Wed Aug 12 2015 Return: Tue Aug 18 2015 Trip spans 7 days
US Airways
US Airways
ISP
2:50p
DCA
7:52p
5h 02m
1 stop
DCA
2:00a
ISP
7:27a
5h 27m
1 stop
Depart: Fri Aug 21 2015 Return: Sun Aug 23 2015 Trip spans 3 days
US Airways
US Airways
ISP
2:50p
DCA
7:52p
5h 02m
1 stop
DCA
4:30a
ISP
7:27a
2h 57m
1 stop
Depart: Sat Aug 22 2015 Return: Tue Aug 25 2015 Trip spans 4 days
US Airways
US Airways
ISP
10:47a
DCA
3:36p
4h 49m
1 stop
DCA
6:00a
ISP
10:22a
4h 22m
1 stop
Depart: Mon Aug 24 2015 Return: Sun Aug 30 2015 Trip spans 7 days
US Airways
US Airways
ISP
2:50p
DCA
7:52p
5h 02m
1 stop
DCA
4:30a
ISP
7:27a
2h 57m
1 stop
Depart: Sat Oct 17 2015 Return: Sat Nov 7 2015 Trip spans 22 days
US Airways
US Airways
ISP
7:47a
IAD
5:23p
9h 36m
2 stops
IAD
1:59a
ISP
8:28a
6h 29m
2 stops
Depart: Fri Nov 13 2015 Return: Sun Nov 15 2015 Trip spans 3 days
$1265
Select
Linear Air Taxi
Linear Air Taxi
ISP
4:00a
IAD
5:55a
1h 55m
nonstop
IAD
7:00a
ISP
8:55a
1h 55m
nonstop
Select an airline:  Southwest
Direct flights ISP to WAS on Southwest
Flight # Depart ISP Arrive BWI Sun Mon Tue Wed Thu Fri Sat Valid Between
4548 5:50 am 7:05 am Jul 11 - Aug 8
2111 6:10 am 7:25 am Jul 10 - Aug 7
3209 6:15 am 7:35 am Aug 9 - Sep 4
4288 6:15 am 7:25 am Jul 12 - Aug 2
2840 8:15 am 9:30 am Aug 9 - Aug 21
4565 9:55 am 11:05 am Jul 10 - Aug 7
1800 11:00 am 12:10 pm Aug 9 - Sep 4
4267 11:05 am 12:15 pm Jul 11 - Aug 1
4267 11:05 am 12:15 pm Aug 8 - Aug 8
4546 11:35 am 12:45 pm Jun 28 - Aug 7
2177 12:15 pm 1:25 pm Jul 11 - Aug 8
2411 2:25 pm 3:35 pm Jul 10 - Aug 7
838 2:50 pm 4:00 pm Aug 9 - Sep 4
3826 5:35 pm 6:45 pm Aug 8 - Aug 8
3826 5:35 pm 6:45 pm Jul 11 - Aug 1
863 6:25 pm 7:35 pm Aug 9 - Sep 4
4285 6:40 pm 7:50 pm Jul 10 - Aug 7
Airports
Origin

Islip
$245
Destination

Washington
only $449
only $245