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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 Apr 7 2015 Return: Wed Apr 8 2015 Trip spans 2 days
American Airlines
American Airlines
ISP
10:52a
DCA
4:57p
6h 05m
1 stop
DCA
2:00a
ISP
7:31a
5h 31m
1 stop
Depart: Fri Apr 24 2015 Return: Sun Apr 26 2015 Trip spans 3 days
US Airways
US Airways
ISP
10:52a
DCA
4:57p
6h 05m
1 stop
DCA
4:30a
ISP
7:31a
3h 01m
1 stop
Depart: Tue Mar 17 2015 Return: Thu Mar 19 2015 Trip spans 3 days
US Airways
US Airways
ISP
3:40a
DCA
6:58a
3h 18m
1 stop
DCA
6:10a
ISP
10:27a
4h 17m
1 stop
Depart: Fri Apr 10 2015 Return: Sun Apr 12 2015 Trip spans 3 days
American Airlines
American Airlines
ISP
10:52a
DCA
4:57p
6h 05m
1 stop
DCA
2:00a
ISP
7:31a
5h 31m
1 stop
Depart: Thu Apr 23 2015 Return: Sun Apr 26 2015 Trip spans 4 days
US Airways
US Airways
ISP
3:40a
DCA
7:00a
3h 20m
1 stop
DCA
4:30a
ISP
7:31a
3h 01m
1 stop
Depart: Fri Apr 3 2015 Return: Mon Apr 6 2015 Trip spans 4 days
US Airways
US Airways
ISP
10:52a
DCA
4:57p
6h 05m
1 stop
DCA
7:40a
ISP
10:27a
2h 47m
1 stop
Depart: Fri Mar 27 2015 Return: Mon Mar 30 2015 Trip spans 4 days
US Airways
US Airways
ISP
3:40a
DCA
8:51a
5h 11m
1 stop
DCA
6:10a
ISP
10:27a
4h 17m
1 stop
Depart: Tue Mar 31 2015 Return: Sat Apr 4 2015 Trip spans 5 days
US Airways
US Airways
ISP
3:40a
DCA
8:52a
5h 12m
1 stop
DCA
3:40a
ISP
6:29a
2h 49m
1 stop
Depart: Sun Mar 29 2015 Return: Tue Mar 31 2015 Trip spans 3 days
American Airlines
American Airlines
ISP
3:40a
DCA
8:34a
4h 54m
1 stop
DCA
2:30a
ISP
7:31a
5h 01m
1 stop
Depart: Thu Mar 26 2015 Return: Sun Mar 29 2015 Trip spans 4 days
US Airways
US Airways
ISP
3:40a
DCA
6:58a
3h 18m
1 stop
DCA
4:30a
ISP
7:31a
3h 01m
1 stop
Depart: Thu Apr 2 2015 Return: Sun Apr 5 2015 Trip spans 4 days
US Airways
US Airways
ISP
3:40a
DCA
7:00a
3h 20m
1 stop
DCA
4:30a
ISP
7:31a
3h 01m
1 stop
Depart: Thu Apr 16 2015 Return: Sun Apr 19 2015 Trip spans 4 days
American Airlines
American Airlines
ISP
10:52a
DCA
4:57p
6h 05m
1 stop
DCA
4:30a
ISP
7:31a
3h 01m
1 stop
Depart: Fri May 8 2015 Return: Sun May 10 2015 Trip spans 3 days
US Airways
US Airways
ISP
10:47a
IAD
7:29p
8h 42m
2 stops
IAD
9:40a
ISP
5:24p
7h 44m
2 stops
Depart: Tue Mar 10 2015 Return: Thu Mar 12 2015 Trip spans 3 days
American Airlines
American Airlines
ISP
3:40a
DCA
6:58a
3h 18m
1 stop
DCA
3:40a
ISP
7:20a
3h 40m
1 stop
Depart: Wed Mar 11 2015 Return: Thu Mar 12 2015 Trip spans 2 days
American Airlines
American Airlines
ISP
3:40a
DCA
6:58a
3h 18m
1 stop
DCA
3:40a
ISP
7:20a
3h 40m
1 stop
Depart: Sun Mar 22 2015 Return: Sun Mar 29 2015 Trip spans 8 days
US Airways
US Airways
ISP
7:40a
DCA
10:46a
3h 06m
1 stop
DCA
4:30a
ISP
7:31a
3h 01m
1 stop
Depart: Wed Apr 8 2015 Return: Fri Apr 10 2015 Trip spans 3 days
US Airways
US Airways
ISP
3:40a
DCA
7:00a
3h 20m
1 stop
DCA
2:30a
ISP
7:31a
5h 01m
1 stop
Depart: Tue Apr 14 2015 Return: Sat Apr 18 2015 Trip spans 5 days
US Airways
US Airways
ISP
10:52a
DCA
4:57p
6h 05m
1 stop
DCA
7:59a
ISP
4:47p
8h 48m
2 stops
Depart: Sun Mar 15 2015 Return: Tue Mar 17 2015 Trip spans 3 days
Multiple Airlines
Multiple Airlines
ISP
3:40a
DCA
7:18a
3h 38m
1 stop
DCA
7:52a
ISP
10:27a
2h 35m
1 stop
Depart: Sat May 9 2015 Return: Wed May 13 2015 Trip spans 5 days
$2665
Select
Linear Air Taxi
Linear Air Taxi
ISP
8:00a
IAD
9:51a
1h 51m
nonstop
IAD
10:00a
ISP
11:51a
1h 51m
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
1579 6:00 am 7:15 am Apr 11 - May 16
2657 6:00 am 7:25 am Mar 14 - Apr 4
667 6:00 am 7:15 am Apr 8 - May 8
28 6:10 am 7:30 am Mar 9 - Mar 13
28 6:10 am 7:30 am Mar 30 - Apr 7
28 6:10 am 7:30 am Mar 16 - Mar 27
4234 7:05 am 8:25 am Mar 8 - Apr 5
580 7:45 am 9:00 am Apr 8 - May 22
1929 9:45 am 11:00 am Apr 11 - Apr 18
144 11:45 am 1:00 pm Apr 7 - Apr 7
538 11:45 am 1:00 pm Mar 8 - Apr 6
3743 11:50 am 1:05 pm Apr 8 - May 22
1297 12:00 pm 1:15 pm Apr 11 - May 16
3015 12:35 pm 1:45 pm Mar 14 - Apr 4
4878 12:45 pm 2:00 pm Apr 12 - May 17
3077 1:20 pm 2:40 pm Apr 7 - Apr 7
4288 1:20 pm 2:40 pm Mar 8 - Apr 6
2940 2:40 pm 3:55 pm Apr 8 - Apr 10
2940 2:40 pm 3:55 pm Apr 12 - May 22
2547 3:50 pm 5:05 pm Apr 11 - Apr 11
3016 3:50 pm 5:05 pm Mar 14 - Apr 4
1453 4:35 pm 5:45 pm Mar 16 - Apr 6
1453 4:35 pm 5:45 pm Mar 8 - Mar 15
3823 4:35 pm 5:45 pm Apr 7 - Apr 7
1232 6:20 pm 7:30 pm Apr 7 - Apr 7
333 6:20 pm 7:30 pm Mar 8 - Apr 6
325 6:40 pm 7:50 pm Apr 8 - May 22
Airports
Origin

Islip
$266
Destination

Washington
only $358
only $266