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Find Flight Deals from Islip Long Island to Washington Dulles Intl (ISP - IAD)

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

Book cheap flights from Islip Long Island to Washington Dulles Intl

(Round-trip)
Depart: Tue Jun 9 2015 Return: Tue Jun 16 2015 Trip spans 8 days
US Airways
US Airways
ISP
10:47a
IAD
5:23p
6h 36m
2 stops
IAD
1:25a
ISP
7:27a
6h 02m
2 stops
Depart: Sat May 16 2015 Return: Tue May 19 2015 Trip spans 4 days
US Airways
US Airways
ISP
11:15a
IAD
4:46a
17h 31m
2 stops
IAD
1:20a
ISP
7:23a
6h 03m
2 stops
Depart: Fri Jun 5 2015 Return: Mon Jun 8 2015 Trip spans 4 days
US Airways
US Airways
ISP
10:47a
IAD
5:23p
6h 36m
2 stops
IAD
1:25a
ISP
7:27a
6h 02m
2 stops
Depart: Tue Apr 28 2015 Return: Wed Apr 29 2015 Trip spans 2 days
US Airways
US Airways
ISP
7:56a
IAD
3:17p
7h 21m
2 stops
IAD
9:40a
ISP
5:24p
7h 44m
2 stops
Depart: Fri May 15 2015 Return: Mon May 18 2015 Trip spans 4 days
US Airways
US Airways
ISP
10:47a
IAD
4:46a
17h 59m
2 stops
IAD
3:59p
ISP
7:23a
15h 24m
2 stops
Depart: Fri May 1 2015 Return: Sun May 3 2015 Trip spans 3 days
US Airways
US Airways
ISP
10:52a
IAD
5:09p
6h 17m
2 stops
IAD
3:00a
ISP
10:27a
7h 27m
2 stops
Depart: Mon Apr 27 2015 Return: Tue Apr 28 2015 Trip spans 2 days
American Airlines
American Airlines
ISP
3:40a
IAD
11:55a
8h 15m
2 stops
IAD
1:20a
ISP
7:31a
6h 11m
2 stops
Airports
Origin

Islip
$478
Destination

Washington
$478