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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: Mon Nov 9 2015 Return: Wed Nov 11 2015 Trip spans 3 days
US Airways
US Airways
ISP
8:53a
DCA
1:27p
4h 34m
1 stop
DCA
2:43a
ISP
8:28a
5h 45m
1 stop
Depart: Fri Sep 4 2015 Return: Mon Sep 7 2015 Trip spans 4 days
US Airways
US Airways
ISP
9:53a
DCA
2:27p
4h 34m
1 stop
DCA
6:00a
ISP
9:28a
3h 28m
1 stop
Depart: Sat Jun 6 2015 Return: Wed Jun 10 2015 Trip spans 5 days
American Airlines
American Airlines
ISP
10:47a
DCA
4:24p
5h 37m
1 stop
DCA
3:42a
ISP
7:27a
3h 45m
1 stop
Depart: Sat Jun 20 2015 Return: Mon Jun 22 2015 Trip spans 3 days
American Airlines
American Airlines
ISP
10:47a
DCA
4:24p
5h 37m
1 stop
DCA
6:00a
ISP
10:22a
4h 22m
1 stop
Depart: Thu Jul 30 2015 Return: Tue Aug 4 2015 Trip spans 6 days
US Airways
US Airways
ISP
2:50p
DCA
6:28p
3h 38m
1 stop
DCA
7:40a
ISP
10:22a
2h 42m
1 stop
Depart: Fri Jul 31 2015 Return: Tue Aug 4 2015 Trip spans 5 days
American Airlines
American Airlines
ISP
2:50p
DCA
6:28p
3h 38m
1 stop
DCA
7:40a
ISP
10:22a
2h 42m
1 stop
Depart: Tue Jul 28 2015 Return: Wed Jul 29 2015 Trip spans 2 days
US Airways
US Airways
ISP
2:50p
DCA
6:28p
3h 38m
1 stop
DCA
3:42a
ISP
7:27a
3h 45m
1 stop
Depart: Sat Jun 13 2015 Return: Wed Jun 17 2015 Trip spans 5 days
US Airways
US Airways
ISP
10:47a
DCA
4:24p
5h 37m
1 stop
DCA
3:42a
ISP
7:27a
3h 45m
1 stop
Depart: Thu Aug 6 2015 Return: Mon Aug 10 2015 Trip spans 5 days
US Airways
US Airways
ISP
2:50p
DCA
6:28p
3h 38m
1 stop
DCA
3:42a
ISP
7:27a
3h 45m
1 stop
Depart: Sat May 30 2015 Return: Mon Jun 1 2015 Trip spans 3 days
US Airways
US Airways
ISP
11:15a
DCA
3:29p
4h 14m
1 stop
DCA
7:40a
ISP
10:20a
2h 40m
1 stop
Depart: Fri Jun 5 2015 Return: Sun Jun 7 2015 Trip spans 3 days
US Airways
US Airways
ISP
2:42p
DCA
7:52p
5h 10m
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
10:22a
5h 52m
1 stop
Depart: Wed Jun 17 2015 Return: Thu Jun 18 2015 Trip spans 2 days
US Airways
US Airways
ISP
2:42p
DCA
6:28p
3h 46m
1 stop
DCA
3:42a
ISP
7:27a
3h 45m
1 stop
Depart: Fri Jul 10 2015 Return: Sun Jul 12 2015 Trip spans 3 days
American Airlines
American Airlines
ISP
2:50p
DCA
6:28p
3h 38m
1 stop
DCA
4:30a
ISP
7:27a
2h 57m
1 stop
Depart: Thu Jul 23 2015 Return: Mon Jul 27 2015 Trip spans 5 days
US Airways
US Airways
ISP
2:50p
DCA
7:52p
5h 02m
1 stop
DCA
3:42a
ISP
7:27a
3h 45m
1 stop
Depart: Thu Aug 20 2015 Return: Sun Aug 23 2015 Trip spans 4 days
US Airways
US Airways
ISP
9:53a
DCA
2:27p
4h 34m
1 stop
DCA
3:43a
ISP
7:23a
3h 40m
1 stop
Depart: Wed Jul 29 2015 Return: Thu Jul 30 2015 Trip spans 2 days
American Airlines
American Airlines
ISP
2:50p
DCA
6:28p
3h 38m
1 stop
DCA
2:25a
ISP
7:27a
5h 02m
1 stop
Depart: Fri Aug 14 2015 Return: Sun Aug 16 2015 Trip spans 3 days
American Airlines
American Airlines
ISP
2:50p
DCA
6:28p
3h 38m
1 stop
DCA
4:30a
ISP
10:22a
5h 52m
1 stop
Depart: Wed Jun 10 2015 Return: Sat Jun 13 2015 Trip spans 4 days
American Airlines
American Airlines
ISP
2:42p
DCA
6:28p
3h 46m
1 stop
DCA
5:45a
ISP
10:22a
4h 37m
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
1:25a
ISP
10:22a
8h 57m
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
4548 5:50 am 7:05 am Jun 13 - Jun 27
1579 6:00 am 7:15 am May 30 - Jun 6
667 6:00 am 7:15 am May 21 - May 29
667 6:00 am 7:15 am May 31 - Jun 5
2111 6:10 am 7:25 am Jun 8 - Jul 2
4288 6:15 am 7:25 am Jun 7 - Jun 28
580 7:45 am 9:00 am May 31 - Jun 5
580 7:45 am 9:00 am May 21 - May 29
1929 9:45 am 11:00 am May 30 - Jun 6
4565 9:55 am 11:05 am Jun 7 - Jul 2
4267 11:05 am 12:15 pm Jun 13 - Jun 27
4546 11:35 am 12:45 pm Jun 7 - Aug 7
3743 11:50 am 1:05 pm Jun 1 - Jun 5
3743 11:50 am 1:05 pm May 21 - May 29
1297 12:00 pm 1:15 pm May 30 - Jun 6
2177 12:15 pm 1:25 pm Jun 13 - Jun 27
4878 12:45 pm 2:00 pm May 31 - May 31
2411 2:25 pm 3:35 pm Jun 14 - Jul 2
2411 2:25 pm 3:35 pm Jun 7 - Jun 12
2940 2:40 pm 3:55 pm May 21 - May 29
2940 2:40 pm 3:55 pm May 31 - Jun 5
2547 3:50 pm 5:05 pm May 30 - May 30
2547 3:50 pm 5:05 pm Jun 6 - Jun 6
3826 5:35 pm 6:45 pm Jun 13 - Jun 27
325 6:40 pm 7:50 pm May 31 - Jun 5
325 6:40 pm 7:50 pm May 21 - May 29
4285 6:40 pm 7:50 pm Jun 7 - Jul 2
Airports
Origin

Islip
$280
Destination

Washington
only $581
only $280