Find Deals on Flights from Washington to Islip Long Island (WAS - ISP)

Depart
Return
1 adult
Adults
18-64
Seniors
65+
Youths
12-17
Children
2-11
Seat Infants
under 2
Lap Infants
under 2
The price shown for each flight will be the average for all passengers including any infants.
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Dates flexible? Here are the best fares found in the past 48 hours...

Book cheap flights from Washington to Islip Long Island

(Round-trip)
Depart: Tue Feb 21 2017 Return: Thu Feb 23 2017 Trip spans 3 days
American Airlines
American Airlines
IAD
5:43a
ISP
12:15p
6h 32m
2 stops
ISP
1:10a
IAD
8:00a
6h 50m
2 stops
Depart: Wed Apr 5 2017 Return: Thu Apr 6 2017 Trip spans 2 days
American Airlines
American Airlines
DCA
2:30a
ISP
8:35a
6h 05m
1 stop
ISP
1:55p
DCA
6:17p
4h 22m
1 stop
Depart: Thu Mar 9 2017 Return: Mon Mar 13 2017 Trip spans 4 days
American Airlines
American Airlines
DCA
1:30a
ISP
7:30a
6h 00m
1 stop
ISP
1:55p
DCA
6:18p
4h 23m
1 stop
Depart: Wed Feb 22 2017 Return: Fri Feb 24 2017 Trip spans 3 days
American Airlines
American Airlines
IAD
5:43a
ISP
12:15p
6h 32m
2 stops
ISP
1:10a
IAD
8:00a
6h 50m
2 stops
Depart: Mon Feb 20 2017 Return: Fri Feb 24 2017 Trip spans 5 days
American Airlines
American Airlines
IAD
2:00a
ISP
12:15p
10h 15m
2 stops
ISP
1:10a
IAD
10:33a
9h 23m
2 stops
Depart: Sat Apr 22 2017 Return: Mon Apr 24 2017 Trip spans 3 days
American Airlines
American Airlines
DCA
1:55p
ISP
6:01p
4h 06m
1 stop
ISP
1:55p
DCA
6:17p
4h 22m
1 stop
Depart: Fri Mar 10 2017 Return: Mon Mar 13 2017 Trip spans 3 days
American Airlines
American Airlines
DCA
12:55p
ISP
4:58p
4h 03m
1 stop
ISP
1:55p
DCA
6:18p
4h 23m
1 stop
Depart: Fri Apr 21 2017 Return: Mon Apr 24 2017 Trip spans 4 days
American Airlines
American Airlines
DCA
1:55p
ISP
6:01p
4h 06m
1 stop
ISP
1:55p
DCA
6:17p
4h 22m
1 stop
Depart: Thu Mar 23 2017 Return: Mon Mar 27 2017 Trip spans 5 days
American Airlines
American Airlines
DCA
2:30a
ISP
8:30a
6h 00m
1 stop
ISP
1:55p
DCA
6:18p
4h 23m
1 stop
Depart: Sat Mar 25 2017 Return: Sun Mar 26 2017 Trip spans 2 days
American Airlines
American Airlines
DCA
2:30a
ISP
8:30a
6h 00m
1 stop
ISP
1:55p
DCA
6:20p
4h 25m
1 stop
Depart: Sat Jun 3 2017 Return: Sun Jun 4 2017 Trip spans 2 days
American Airlines
American Airlines
DCA
1:29p
ISP
5:55p
4h 26m
1 stop
ISP
2:20p
DCA
5:35p
3h 15m
1 stop
Depart: Fri Mar 24 2017 Return: Sun Mar 26 2017 Trip spans 3 days
American Airlines
American Airlines
DCA
2:30a
ISP
8:30a
6h 00m
1 stop
ISP
1:55p
DCA
6:20p
4h 25m
1 stop
Depart: Fri Jun 2 2017 Return: Sun Jun 4 2017 Trip spans 3 days
American Airlines
American Airlines
DCA
4:24a
ISP
8:30a
4h 06m
1 stop
ISP
2:20p
DCA
5:35p
3h 15m
1 stop
Depart: Fri Apr 7 2017 Return: Sun Apr 9 2017 Trip spans 3 days
American Airlines
American Airlines
DCA
2:30a
ISP
8:35a
6h 05m
1 stop
ISP
2:10a
DCA
9:16a
7h 06m
2 stops
Depart: Sat Feb 18 2017 Return: Tue Feb 21 2017 Trip spans 4 days
American Airlines
American Airlines
DCA
1:45a
ISP
7:30a
5h 45m
1 stop
ISP
8:10a
DCA
11:38a
3h 28m
1 stop
Depart: Sun Feb 19 2017 Return: Tue Feb 21 2017 Trip spans 3 days
American Airlines
American Airlines
DCA
12:55p
ISP
4:48p
3h 53m
1 stop
ISP
8:10a
DCA
11:38a
3h 28m
1 stop
Select an airline:  Southwest
Direct flights WAS to ISP on Southwest
Flight # Depart BWI Arrive ISP Sun Mon Tue Wed Thu Fri Sat Valid Between
1315 10:15 am 11:20 am Mar 13 - Apr 24
1315 10:15 am 11:20 am Mar 9 - Mar 10
1337 10:30 am 11:35 am Feb 14 - Mar 8
6187 10:35 am 11:40 am Mar 11 - Mar 11
6187 10:35 am 11:40 am Mar 18 - Apr 22
4106 10:40 am 11:45 am Feb 18 - Mar 4
6355 11:10 am 12:10 pm Mar 12 - Apr 23
3395 11:30 am 12:30 pm Feb 19 - Mar 5
5 2:15 pm 3:15 pm Mar 9 - Mar 10
5 2:15 pm 3:15 pm Mar 13 - Apr 7
478 3:30 pm 4:30 pm Feb 14 - Mar 8
2518 3:45 pm 4:45 pm Feb 19 - Mar 5
4750 4:15 pm 5:15 pm Mar 13 - Apr 24
5108 4:15 pm 5:15 pm Mar 10 - Mar 10
6102 4:15 pm 5:15 pm Mar 9 - Mar 9
2040 4:25 pm 5:25 pm Feb 18 - Mar 4
5561 4:30 pm 5:30 pm Mar 12 - Apr 23
116 5:45 pm 6:50 pm Mar 11 - Mar 11
116 5:45 pm 6:50 pm Mar 18 - Apr 22
1822 6:10 pm 7:15 pm Feb 15 - Mar 8
4982 7:55 pm 9:00 pm Feb 19 - Mar 5
3102 8:10 pm 9:10 pm Mar 12 - Apr 23
843 8:45 pm 9:50 pm Mar 13 - Apr 24
843 8:45 pm 9:50 pm Mar 9 - Mar 10
5248 9:40 pm 10:40 pm Feb 18 - Mar 4
2104 9:45 pm 10:45 pm Mar 11 - Mar 11
2104 9:45 pm 10:45 pm Mar 18 - Apr 22
1846 10:15 pm 11:20 pm Feb 14 - Mar 8
1244 10:25 pm 11:30 pm Mar 13 - Apr 24
1244 10:25 pm 11:30 pm Mar 9 - Mar 10
2178 10:30 pm 11:35 pm Feb 19 - Mar 5
4113 10:40 pm 11:45 pm Mar 12 - Apr 23
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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Airports
Origin

Washington
only $322
only $335
Destination

Islip
$322