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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 Mar 17 2015 Return: Fri Mar 20 2015 Trip spans 4 days
American Airlines
American Airlines
ISP
3:40a
IAD
1:23p
9h 43m
2 stops
IAD
1:25a
ISP
10:27a
9h 02m
2 stops
Depart: Thu Apr 16 2015 Return: Sun Apr 19 2015 Trip spans 4 days
US Airways
US Airways
ISP
7:56a
IAD
3:17p
7h 21m
2 stops
IAD
1:20a
ISP
7:31a
6h 11m
2 stops
Depart: Mon Mar 16 2015 Return: Thu Mar 19 2015 Trip spans 4 days
US Airways
US Airways
ISP
3:40a
IAD
11:45a
8h 05m
2 stops
IAD
1:25a
ISP
10:27a
9h 02m
2 stops
Depart: Sat Mar 14 2015 Return: Sun Mar 15 2015 Trip spans 2 days
American Airlines
American Airlines
ISP
3:40a
IAD
11:45a
8h 05m
2 stops
IAD
1:20a
ISP
7:20a
6h 00m
2 stops
Depart: Sat Mar 21 2015 Return: Thu Mar 26 2015 Trip spans 6 days
$1333
Select
Linear Air Taxi
Linear Air Taxi
ISP
5:00a
IAD
6:51a
1h 51m
nonstop
IAD
9:00a
ISP
10:51a
1h 51m
nonstop
Depart: Thu Mar 5 2015 Return: Fri Mar 6 2015 Trip spans 2 days
$5329
Select
Linear Air Taxi
Linear Air Taxi
ISP
8:00a
IAD
9:51a
1h 51m
nonstop
IAD
3:00a
ISP
4:51a
1h 51m
nonstop
Depart: Fri Mar 6 2015 Return: Sat Mar 7 2015 Trip spans 2 days
$5329
Select
Linear Air Taxi
Linear Air Taxi
ISP
2:00a
IAD
3:51a
1h 51m
nonstop
IAD
4:00a
ISP
5:51a
1h 51m
nonstop
Depart: Sat Mar 7 2015 Return: Sun Mar 8 2015 Trip spans 1 days
$5329
Select
Linear Air Taxi
Linear Air Taxi
ISP
4:00a
IAD
5:51a
1h 51m
nonstop
IAD
8:00a
ISP
9:51a
1h 51m
nonstop
Depart: Tue Mar 10 2015 Return: Thu Mar 12 2015 Trip spans 3 days
$5329
Select
Linear Air Taxi
Linear Air Taxi
ISP
4:00a
IAD
5:51a
1h 51m
nonstop
IAD
4:00a
ISP
5:51a
1h 51m
nonstop
Depart: Thu Mar 12 2015 Return: Sun Mar 15 2015 Trip spans 4 days
$5329
Select
Linear Air Taxi
Linear Air Taxi
ISP
12:00p
IAD
1:51p
1h 51m
nonstop
IAD
7:00a
ISP
8:51a
1h 51m
nonstop
Depart: Fri Mar 27 2015 Return: Sun Mar 29 2015 Trip spans 3 days
$5329
Select
Linear Air Taxi
Linear Air Taxi
ISP
5:00p
IAD
6:51p
1h 51m
nonstop
IAD
12:00p
ISP
1:51p
1h 51m
nonstop
Depart: Thu Aug 6 2015 Return: Sun Aug 16 2015 Trip spans 11 days
$5329
Select
Linear Air Taxi
Linear Air Taxi
ISP
3:00a
IAD
4:51a
1h 51m
nonstop
IAD
5:00a
ISP
6:51a
1h 51m
nonstop
Airports
Origin

Islip
$480
Destination

Washington
$480