Browse Origins:
Browse Destinations:

Find Flight Deals 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 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: Wed Apr 15 2015 Return: Thu Apr 16 2015 Trip spans 2 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: 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: Sun Mar 29 2015 Return: Mon Mar 30 2015 Trip spans 2 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: 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: Fri Mar 6 2015 Return: Tue Mar 10 2015 Trip spans 4 days
Multiple Airlines
Multiple Airlines
ISP
2:40a
DCA
5:54a
3h 14m
1 stop
DCA
7:52a
ISP
10:27a
2h 35m
1 stop
Depart: Thu Feb 19 2015 Return: Fri Feb 20 2015 Trip spans 2 days
American Airlines
American Airlines
ISP
2:30a
DCA
7:51a
5h 21m
1 stop
DCA
1:30a
ISP
6:20a
4h 50m
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: Fri Feb 6 2015 Trip spans 2 days
US Airways
US Airways
ISP
9:50a
DCA
1:24p
3h 34m
1 stop
DCA
6:55a
ISP
9:27a
2h 32m
1 stop
Depart: Fri Feb 27 2015 Return: Sun Mar 1 2015 Trip spans 3 days
US Airways
US Airways
ISP
2:30a
DCA
7:51a
5h 21m
1 stop
DCA
3:30a
ISP
6:20a
2h 50m
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: Thu Mar 5 2015 Return: Mon Mar 9 2015 Trip spans 4 days
Multiple Airlines
Multiple Airlines
ISP
2:40a
DCA
5:54a
3h 14m
1 stop
DCA
7:52a
ISP
10:27a
2h 35m
1 stop
Depart: Fri Apr 10 2015 Return: Tue Apr 14 2015 Trip spans 5 days
Multiple Airlines
Multiple Airlines
ISP
3:40a
DCA
7:00a
3h 20m
1 stop
DCA
7:40a
ISP
10:27a
2h 47m
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 26 2015 Return: Sun Mar 29 2015 Trip spans 4 days
US Airways
US Airways
ISP
3:40a
DCA
8:51a
5h 11m
1 stop
DCA
4:30a
ISP
7:31a
3h 01m
1 stop
Depart: Sun Feb 15 2015 Return: Tue Feb 17 2015 Trip spans 3 days
$5329
Select
Linear Air Taxi
Linear Air Taxi
ISP
4:00a
IAD
5:51a
1h 51m
nonstop
IAD
3:00p
ISP
4:51p
1h 51m
nonstop
Change your search
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
1332 6:00 am 7:25 am Mar 7 - Mar 7
604 6:05 am 7:30 am Jan 31 - Feb 28
697 6:30 am 7:45 am Jan 27 - Mar 6
4234 7:05 am 8:25 am Mar 8 - Apr 5
2044 9:00 am 10:15 am Feb 1 - Mar 1
3961 10:45 am 12:05 pm Jan 31 - Feb 28
538 11:45 am 1:00 pm Mar 8 - Apr 6
3923 12:05 pm 1:20 pm Jan 27 - Mar 6
3015 12:35 pm 1:45 pm Mar 7 - Mar 7
2519 1:10 pm 2:30 pm Feb 21 - Feb 28
2519 1:10 pm 2:30 pm Feb 14 - Feb 14
2519 1:10 pm 2:30 pm Feb 7 - Feb 7
4288 1:20 pm 2:40 pm Mar 8 - Apr 6
4885 2:55 pm 4:10 pm Jan 27 - Feb 6
4885 2:55 pm 4:10 pm Feb 8 - Mar 6
470 3:50 pm 5:05 pm Mar 7 - Mar 7
1453 4:35 pm 5:45 pm Mar 8 - Mar 15
3179 4:45 pm 6:05 pm Feb 14 - Feb 28
243 5:50 pm 7:05 pm Jan 27 - Mar 6
4502 5:50 pm 7:05 pm Feb 1 - Mar 1
333 6:20 pm 7:30 pm Mar 8 - Apr 6
Airports
Origin

Islip
$188
Destination

Washington
only $5329
only $188