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Find Flight Deals from Islip Long Island to Washington Reagan-National (ISP - DCA)

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

Book cheap flights from Islip Long Island to Washington Reagan-National

(Round-trip)
Depart: Tue Mar 31 2015 Return: Wed Apr 1 2015 Trip spans 2 days
US Airways
US Airways
ISP
10:52a
DCA
4:57p
6h 05m
1 stop
DCA
2:00a
ISP
7:31a
5h 31m
1 stop
Depart: Sun Feb 8 2015 Return: Wed Feb 11 2015 Trip spans 4 days
Multiple Airlines
Multiple Airlines
ISP
6:40a
DCA
9:56a
3h 16m
1 stop
DCA
6:55a
ISP
9:27a
2h 32m
1 stop
Depart: Tue Feb 10 2015 Return: Wed Feb 11 2015 Trip spans 2 days
US Airways
US Airways
ISP
9:50a
DCA
1:24p
3h 34m
1 stop
DCA
2:43a
ISP
6:19a
3h 36m
1 stop
Depart: Tue Feb 24 2015 Return: Tue Mar 3 2015 Trip spans 8 days
US Airways
US Airways
ISP
2:30a
DCA
5:54a
3h 24m
1 stop
DCA
6:52a
ISP
9:27a
2h 35m
1 stop
Depart: Sat Feb 28 2015 Return: Sun Mar 1 2015 Trip spans 2 days
US Airways
US Airways
ISP
5:50a
DCA
9:44a
3h 54m
1 stop
DCA
2:40a
ISP
6:20a
3h 40m
1 stop
Depart: Sat Mar 7 2015 Return: Sun Mar 8 2015 Trip spans 1 days
US Airways
US Airways
ISP
5:50a
DCA
9:51a
4h 01m
1 stop
DCA
4:30a
ISP
7:20a
2h 50m
1 stop
Depart: Tue Mar 17 2015 Return: Sat Mar 21 2015 Trip spans 5 days
US Airways
US Airways
ISP
3:40a
DCA
8:51a
5h 11m
1 stop
DCA
3:00a
ISP
6:28a
3h 28m
1 stop
Depart: Mon Mar 30 2015 Return: Tue Apr 7 2015 Trip spans 9 days
US Airways
US Airways
ISP
10:52a
DCA
4:57p
6h 05m
1 stop
DCA
6:10a
ISP
10:27a
4h 17m
1 stop
Depart: Sun Mar 22 2015 Return: Wed Mar 25 2015 Trip spans 4 days
US Airways
US Airways
ISP
3:40a
DCA
7:18a
3h 38m
1 stop
DCA
6:10a
ISP
10:27a
4h 17m
1 stop
Depart: Wed Feb 4 2015 Return: Thu Feb 5 2015 Trip spans 2 days
Multiple Airlines
Multiple Airlines
ISP
2:30a
DCA
5:58a
3h 28m
1 stop
DCA
6:55a
ISP
9:27a
2h 32m
1 stop
Depart: Thu Feb 5 2015 Return: Sun Feb 8 2015 Trip spans 4 days
US Airways
US Airways
ISP
9:50a
DCA
1:24p
3h 34m
1 stop
DCA
2:40a
ISP
6:19a
3h 39m
1 stop
Depart: Fri Apr 24 2015 Return: Sun Apr 26 2015 Trip spans 3 days
US Airways
US Airways
ISP
3:40a
DCA
7:00a
3h 20m
1 stop
DCA
6:15a
ISP
10:27a
4h 12m
1 stop
Depart: Fri Feb 27 2015 Return: Wed Mar 4 2015 Trip spans 6 days
US Airways
US Airways
ISP
2:30a
DCA
5:54a
3h 24m
1 stop
DCA
6:52a
ISP
9:27a
2h 35m
1 stop
Depart: Sun Apr 12 2015 Return: Tue Apr 14 2015 Trip spans 3 days
US Airways
US Airways
ISP
3:40a
DCA
8:34a
4h 54m
1 stop
DCA
7:40a
ISP
10:27a
2h 47m
1 stop
Depart: Thu Mar 5 2015 Return: Sun Mar 8 2015 Trip spans 3 days
Multiple Airlines
Multiple Airlines
ISP
2:40a
DCA
5:54a
3h 14m
1 stop
DCA
4:30a
ISP
7:20a
2h 50m
1 stop
Depart: Fri Mar 6 2015 Return: Sun Mar 8 2015 Trip spans 2 days
Multiple Airlines
Multiple Airlines
ISP
2:40a
DCA
5:54a
3h 14m
1 stop
DCA
4:30a
ISP
7:20a
2h 50m
1 stop
Depart: Mon Mar 23 2015 Return: Wed Mar 25 2015 Trip spans 3 days
US Airways
US Airways
ISP
3:40a
DCA
8:51a
5h 11m
1 stop
DCA
7:52a
ISP
10:27a
2h 35m
1 stop
Depart: Wed Feb 25 2015 Return: Thu Feb 26 2015 Trip spans 2 days
US Airways
US Airways
ISP
2:30a
DCA
10:21a
7h 51m
2 stops
DCA
5:10a
ISP
9:27a
4h 17m
1 stop
Depart: Sat Apr 11 2015 Return: Tue Apr 14 2015 Trip spans 4 days
US Airways
US Airways
ISP
3:40a
DCA
7:00a
3h 20m
1 stop
DCA
7:40a
ISP
10:27a
2h 47m
1 stop
Depart: Mon Feb 23 2015 Return: Fri Feb 27 2015 Trip spans 5 days
American Airlines
American Airlines
ISP
2:30a
DCA
5:54a
3h 24m
1 stop
DCA
1:30a
ISP
6:20a
4h 50m
1 stop
Change your search
Airports
Origin

Islip
$188
Destination

Washington
$188