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

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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Book cheap flights from Islip Long Island to Washington

(Round-trip)
Depart: Thu May 26 2016 Return: Mon May 30 2016 Trip spans 5 days
American Airlines
American Airlines
ISP
2:30p
DCA
6:14p
3h 44m
1 stop
DCA
1:35p
ISP
5:57p
4h 22m
1 stop
Depart: Thu Jul 14 2016 Return: Mon Jul 18 2016 Trip spans 5 days
Major Airline
Major Airline
ISP
7:53a
IAD
3:15p
7h 22m
2 stops
IAD
1:15a
ISP
10:31a
9h 16m
2 stops
Depart: Fri May 27 2016 Return: Mon May 30 2016 Trip spans 4 days
American Airlines
American Airlines
ISP
7:53a
DCA
10:57a
3h 04m
1 stop
DCA
1:35p
ISP
5:57p
4h 22m
1 stop
Depart: Sat May 14 2016 Return: Mon May 23 2016 Trip spans 10 days
American Airlines
American Airlines
ISP
3:45a
DCA
8:24a
4h 39m
1 stop
DCA
1:35p
ISP
5:57p
4h 22m
1 stop
Depart: Wed May 18 2016 Return: Mon May 23 2016 Trip spans 6 days
American Airlines
American Airlines
ISP
7:53a
DCA
10:57a
3h 04m
1 stop
DCA
1:35p
ISP
5:57p
4h 22m
1 stop
Depart: Tue May 24 2016 Return: Mon May 30 2016 Trip spans 7 days
American Airlines
American Airlines
ISP
2:30p
DCA
6:14p
3h 44m
1 stop
DCA
1:35p
ISP
5:57p
4h 22m
1 stop
Depart: Wed May 25 2016 Return: Mon May 30 2016 Trip spans 6 days
American Airlines
American Airlines
ISP
2:30p
DCA
6:14p
3h 44m
1 stop
DCA
1:35p
ISP
5:57p
4h 22m
1 stop
Depart: Wed Jun 1 2016 Return: Mon Jun 6 2016 Trip spans 6 days
Major Airline
Major Airline
ISP
10:30a
DCA
10:28p
11h 58m
2 stops
DCA
10:30p
ISP
6:31a
8h 01m
2 stops
Depart: Thu May 19 2016 Return: Mon May 23 2016 Trip spans 5 days
American Airlines
American Airlines
ISP
7:53a
DCA
10:57a
3h 04m
1 stop
DCA
1:35p
ISP
5:57p
4h 22m
1 stop
Depart: Mon May 9 2016 Return: Mon May 23 2016 Trip spans 15 days
American Airlines
American Airlines
ISP
2:30p
DCA
6:14p
3h 44m
1 stop
DCA
1:35p
ISP
5:57p
4h 22m
1 stop
Depart: Fri Nov 18 2016 Return: Sat Nov 26 2016 Trip spans 9 days
Major Airline
Major Airline
ISP
10:05p
IAD
1:00a
2h 55m
1 stop
IAD
7:05a
ISP
11:14a
4h 09m
1 stop
Depart: Tue May 10 2016 Return: Mon May 23 2016 Trip spans 14 days
American Airlines
American Airlines
ISP
2:30p
DCA
6:14p
3h 44m
1 stop
DCA
1:35p
ISP
5:57p
4h 22m
1 stop
Depart: Wed May 11 2016 Return: Mon May 23 2016 Trip spans 13 days
American Airlines
American Airlines
ISP
2:30p
DCA
6:14p
3h 44m
1 stop
DCA
1:35p
ISP
5:57p
4h 22m
1 stop
Depart: Thu May 12 2016 Return: Mon May 23 2016 Trip spans 12 days
American Airlines
American Airlines
ISP
7:53a
DCA
10:57a
3h 04m
1 stop
DCA
1:35p
ISP
5:57p
4h 22m
1 stop
Depart: Fri May 13 2016 Return: Mon May 23 2016 Trip spans 11 days
American Airlines
American Airlines
ISP
2:30p
DCA
6:14p
3h 44m
1 stop
DCA
1:35p
ISP
5:57p
4h 22m
1 stop
Depart: Mon May 16 2016 Return: Mon May 23 2016 Trip spans 8 days
American Airlines
American Airlines
ISP
2:30p
DCA
6:14p
3h 44m
1 stop
DCA
1:35p
ISP
5:57p
4h 22m
1 stop
Depart: Tue May 17 2016 Return: Mon May 23 2016 Trip spans 7 days
American Airlines
American Airlines
ISP
2:30p
DCA
6:14p
3h 44m
1 stop
DCA
1:35p
ISP
5:57p
4h 22m
1 stop
Depart: Thu Jun 2 2016 Return: Sun Jun 5 2016 Trip spans 4 days
American Airlines
American Airlines
ISP
7:53a
DCA
10:52a
2h 59m
1 stop
DCA
3:40a
ISP
7:15a
3h 35m
1 stop
Depart: Tue Jun 7 2016 Return: Tue Jun 21 2016 Trip spans 15 days
American Airlines
American Airlines
ISP
7:53a
DCA
12:31p
4h 38m
1 stop
DCA
3:35a
ISP
7:15a
3h 40m
1 stop
Depart: Wed Jun 8 2016 Return: Tue Jun 21 2016 Trip spans 14 days
American Airlines
American Airlines
ISP
7:53a
DCA
12:31p
4h 38m
1 stop
DCA
3:35a
ISP
7:15a
3h 40m
1 stop
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
452 5:25 am 6:45 am Jun 6 - Jul 1
3485 5:30 am 6:50 am Jun 5 - Jun 26
1829 6:00 am 7:10 am May 1 - May 22
2021 6:00 am 7:10 am Jun 4 - Jun 4
2021 6:00 am 7:10 am May 7 - May 21
3341 6:00 am 7:10 am May 28 - May 28
3348 6:00 am 7:10 am Apr 28 - May 27
3348 6:00 am 7:10 am May 31 - Jun 3
2030 6:05 am 7:15 am May 30 - May 30
361 6:10 am 7:20 am Jun 11 - Aug 6
3348 7:10 am 8:20 am Jun 5 - Jun 26
524 7:25 am 8:35 am Jun 6 - Jul 1
2910 7:45 am 8:55 am May 14 - Jun 4
650 8:15 am 9:25 am May 29 - May 29
1551 9:15 am 10:25 am May 16 - May 20
1551 9:15 am 10:25 am May 15 - May 15
1551 9:15 am 10:25 am May 2 - May 13
1551 9:15 am 10:25 am May 31 - Jun 3
1551 9:15 am 10:25 am May 23 - May 27
1551 9:15 am 10:25 am May 22 - May 22
4157 9:15 am 10:25 am May 29 - May 30
557 9:40 am 10:50 am Jun 11 - Jul 30
1663 10:30 am 11:40 am Jun 5 - Jul 1
3677 11:00 am 12:10 pm May 1 - May 22
538 11:05 am 12:15 pm May 29 - May 29
1566 11:20 am 12:30 pm Apr 28 - May 27
1566 11:20 am 12:30 pm May 31 - Jun 3
2105 11:20 am 12:30 pm May 30 - May 30
5328 12:20 pm 1:30 pm Jun 11 - Aug 6
1210 12:35 pm 1:45 pm Apr 30 - Jun 4
1656 12:45 pm 1:55 pm Jun 5 - Jul 1
4052 1:15 pm 2:25 pm May 16 - May 20
4052 1:15 pm 2:25 pm May 31 - Jun 3
4052 1:15 pm 2:25 pm Apr 28 - May 13
4052 1:15 pm 2:25 pm May 15 - May 15
4052 1:15 pm 2:25 pm May 22 - May 22
4052 1:15 pm 2:25 pm May 23 - May 27
1882 1:35 pm 2:45 pm May 30 - May 30
4092 2:10 pm 3:20 pm May 29 - May 29
1210 3:50 pm 5:00 pm Jun 11 - Jul 2
3509 4:15 pm 5:25 pm Apr 30 - Jun 4
247 6:40 pm 7:50 pm Jun 5 - Jul 1
379 6:40 pm 7:50 pm May 31 - Jun 3
379 6:40 pm 7:50 pm Apr 28 - May 27
3959 6:45 pm 7:55 pm May 29 - May 30
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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We’re not the seller
At KAYAK we don’t set prices, so it’s not possible for us to guarantee what other companies are selling.

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Why aren’t prices accurate 100% of the time?
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Airports
Origin

Islip
$221
Destination

Washington
only $424
only $221