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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 Jun 23 2015 Return: Tue Aug 4 2015 Trip spans 43 days
US Airways
US Airways
ISP
2:42p
DCA
6:28p
3h 46m
1 stop
DCA
7:40a
ISP
10:22a
2h 42m
1 stop
Depart: Fri Jun 26 2015 Return: Sun Jun 28 2015 Trip spans 3 days
US Airways
US Airways
ISP
2:42p
DCA
6:28p
3h 46m
1 stop
DCA
4:30a
ISP
7:27a
2h 57m
1 stop
Depart: Thu Jun 11 2015 Return: Sun Jun 14 2015 Trip spans 4 days
American Airlines
American Airlines
ISP
2:42p
DCA
6:28p
3h 46m
1 stop
DCA
4:30a
ISP
7:27a
2h 57m
1 stop
Depart: Sat Jun 6 2015 Return: Sun Jun 7 2015 Trip spans 2 days
US Airways
US Airways
ISP
10:47a
DCA
4:24p
5h 37m
1 stop
DCA
4:30a
ISP
7:27a
2h 57m
1 stop
Depart: Fri Jun 12 2015 Return: Sun Jun 14 2015 Trip spans 3 days
American Airlines
American Airlines
ISP
2:42p
DCA
6:28p
3h 46m
1 stop
DCA
4:30a
ISP
7:27a
2h 57m
1 stop
Depart: Fri Jul 3 2015 Return: Mon Jul 6 2015 Trip spans 4 days
US Airways
US Airways
ISP
2:42p
DCA
6:28p
3h 46m
1 stop
DCA
2:25a
ISP
7:27a
5h 02m
1 stop
Depart: Wed Jun 3 2015 Return: Sat Jun 6 2015 Trip spans 4 days
US Airways
US Airways
ISP
3:30a
DCA
8:52a
5h 22m
1 stop
DCA
5:45a
ISP
10:22a
4h 37m
1 stop
Depart: Thu Jul 2 2015 Return: Sun Jul 5 2015 Trip spans 4 days
US Airways
US Airways
ISP
2:42p
DCA
6:28p
3h 46m
1 stop
DCA
4:30a
ISP
7:27a
2h 57m
1 stop
Depart: Thu Jul 23 2015 Return: Sun Jul 26 2015 Trip spans 4 days
American Airlines
American Airlines
ISP
2:50p
DCA
7:52p
5h 02m
1 stop
DCA
4:30a
ISP
7:27a
2h 57m
1 stop
Depart: Fri Jul 24 2015 Return: Sun Jul 26 2015 Trip spans 3 days
US Airways
US Airways
ISP
2:50p
DCA
6:28p
3h 38m
1 stop
DCA
4:30a
ISP
7:27a
2h 57m
1 stop
Depart: Thu Jun 4 2015 Return: Mon Jun 8 2015 Trip spans 5 days
American Airlines
American Airlines
ISP
10:47a
DCA
5:01p
6h 14m
1 stop
DCA
6:00a
ISP
10:22a
4h 22m
1 stop
Depart: Fri Jun 5 2015 Return: Sun Jun 7 2015 Trip spans 3 days
US Airways
US Airways
ISP
2:42p
DCA
6:28p
3h 46m
1 stop
DCA
4:30a
ISP
7:27a
2h 57m
1 stop
Depart: Wed Jul 1 2015 Return: Sun Jul 5 2015 Trip spans 5 days
US Airways
US Airways
ISP
2:42p
DCA
6:28p
3h 46m
1 stop
DCA
4:30a
ISP
7:27a
2h 57m
1 stop
Depart: Sat Jul 4 2015 Return: Sat Jul 11 2015 Trip spans 8 days
US Airways
US Airways
ISP
10:47a
DCA
4:24p
5h 37m
1 stop
DCA
5:45a
ISP
10:22a
4h 37m
1 stop
Depart: Tue Jul 21 2015 Return: Mon Jul 27 2015 Trip spans 7 days
American Airlines
American Airlines
ISP
2:50p
DCA
6:28p
3h 38m
1 stop
DCA
3:42a
ISP
7:27a
3h 45m
1 stop
Depart: Wed Jul 22 2015 Return: Mon Jul 27 2015 Trip spans 6 days
American Airlines
American Airlines
ISP
2:50p
DCA
7:52p
5h 02m
1 stop
DCA
3:42a
ISP
7:27a
3h 45m
1 stop
Depart: Tue May 19 2015 Return: Wed May 20 2015 Trip spans 2 days
US Airways
US Airways
ISP
10:47a
DCA
5:00p
6h 13m
1 stop
DCA
3:41a
ISP
7:23a
3h 42m
1 stop
Depart: Sat May 23 2015 Return: Mon May 25 2015 Trip spans 3 days
US Airways
US Airways
ISP
11:15a
DCA
4:23p
5h 08m
1 stop
DCA
6:10a
ISP
10:20a
4h 10m
1 stop
Depart: Tue Jun 16 2015 Return: Sat Jun 20 2015 Trip spans 5 days
US Airways
US Airways
ISP
10:47a
IAD
5:23p
6h 36m
2 stops
IAD
5:20a
ISP
2:50p
9h 30m
2 stops
Depart: Mon May 18 2015 Return: Wed May 20 2015 Trip spans 3 days
American Airlines
American Airlines
ISP
10:47a
IAD
7:29p
8h 42m
2 stops
IAD
1:20a
ISP
10:20a
9h 00m
2 stops
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 May 30 - Jun 6
1579 6:00 am 7:15 am May 2 - May 16
1592 6:00 am 7:15 am May 23 - May 23
1970 6:00 am 7:15 am May 25 - May 25
667 6:00 am 7:15 am May 26 - Jun 5
667 6:00 am 7:15 am May 3 - May 22
2111 6:10 am 7:25 am Jun 8 - Jul 2
4288 6:15 am 7:25 am Jun 7 - Jun 28
1809 7:45 am 9:00 am May 25 - May 25
580 7:45 am 9:00 am May 26 - Jun 5
580 7:45 am 9:00 am May 3 - May 22
1075 7:50 am 9:05 am May 24 - May 24
1929 9:45 am 11:00 am May 30 - Jun 6
1929 9:45 am 11:00 am May 9 - May 16
1952 9:45 am 11:00 am May 23 - May 23
4565 9:55 am 11:05 am Jun 7 - Jul 2
4546 11:35 am 12:45 pm Jun 7 - Aug 7
3743 11:45 am 1:00 pm May 24 - May 24
161 11:50 am 1:05 pm May 25 - May 25
3743 11:50 am 1:05 pm May 26 - Jun 5
3743 11:50 am 1:05 pm May 4 - May 22
1297 12:00 pm 1:15 pm May 2 - May 16
1297 12:00 pm 1:15 pm May 30 - Jun 6
1300 12:00 pm 1:15 pm May 23 - May 23
4878 12:45 pm 2:00 pm May 3 - May 17
4878 12:45 pm 2:00 pm May 31 - May 31
2411 2:25 pm 3:35 pm Jun 7 - Jun 12
2940 2:40 pm 3:55 pm May 26 - Jun 5
2940 2:40 pm 3:55 pm May 3 - May 22
3715 2:40 pm 3:55 pm May 24 - May 25
2080 3:50 pm 5:05 pm May 23 - May 23
2547 3:50 pm 5:05 pm May 2 - May 16
2547 3:50 pm 5:05 pm Jun 6 - Jun 6
2547 3:50 pm 5:05 pm May 30 - May 30
853 6:35 pm 7:45 pm May 24 - May 24
853 6:35 pm 7:45 pm May 25 - May 25
325 6:40 pm 7:50 pm May 3 - May 22
325 6:40 pm 7:50 pm May 26 - Jun 5
4285 6:40 pm 7:50 pm Jun 7 - Jul 2
Airports
Origin

Islip
$280
Destination

Washington
only $504
only $280