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
Students
under 26
The price shown for each flight will be the average for all passengers including any infants.
Compare vs. KAYAK all | none
I am not a student   change
Browse Origins:
Browse Destinations:

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: Thu Oct 13 2016 Return: Wed Oct 19 2016 Trip spans 7 days
American Airlines
American Airlines
ISP
7:53a
DCA
10:59a
3h 06m
1 stop
DCA
3:35a
ISP
7:22a
3h 47m
1 stop
Depart: Sat Oct 15 2016 Return: Wed Oct 19 2016 Trip spans 5 days
American Airlines
American Airlines
ISP
3:40a
DCA
8:23a
4h 43m
1 stop
DCA
3:35a
ISP
7:22a
3h 47m
1 stop
Depart: Fri Oct 7 2016 Return: Wed Oct 19 2016 Trip spans 13 days
American Airlines
American Airlines
ISP
7:53a
DCA
12:55p
5h 02m
1 stop
DCA
3:35a
ISP
7:22a
3h 47m
1 stop
Depart: Tue Oct 11 2016 Return: Wed Oct 19 2016 Trip spans 9 days
American Airlines
American Airlines
ISP
7:53a
DCA
10:59a
3h 06m
1 stop
DCA
3:35a
ISP
7:22a
3h 47m
1 stop
Depart: Sat Oct 1 2016 Return: Wed Oct 5 2016 Trip spans 5 days
American Airlines
American Airlines
ISP
11:10a
DCA
3:08p
3h 58m
1 stop
DCA
3:35a
ISP
7:22a
3h 47m
1 stop
Depart: Sat Oct 22 2016 Return: Tue Oct 25 2016 Trip spans 4 days
American Airlines
American Airlines
ISP
3:40a
DCA
8:23a
4h 43m
1 stop
DCA
3:35a
ISP
7:22a
3h 47m
1 stop
Depart: Sat Oct 29 2016 Return: Tue Nov 1 2016 Trip spans 4 days
American Airlines
American Airlines
ISP
3:40a
DCA
8:23a
4h 43m
1 stop
DCA
2:51a
ISP
7:22a
4h 31m
1 stop
Depart: Sat Nov 5 2016 Return: Wed Nov 9 2016 Trip spans 5 days
American Airlines
American Airlines
ISP
3:45a
DCA
8:19a
4h 34m
1 stop
DCA
2:35a
ISP
6:22a
3h 47m
1 stop
Depart: Thu Oct 6 2016 Return: Wed Oct 19 2016 Trip spans 14 days
American Airlines
American Airlines
ISP
7:53a
DCA
10:59a
3h 06m
1 stop
DCA
3:35a
ISP
7:22a
3h 47m
1 stop
Depart: Sun Oct 9 2016 Return: Wed Oct 19 2016 Trip spans 11 days
American Airlines
American Airlines
ISP
3:15a
DCA
8:41a
5h 26m
1 stop
DCA
3:35a
ISP
7:22a
3h 47m
1 stop
Depart: Wed Oct 12 2016 Return: Wed Oct 19 2016 Trip spans 8 days
American Airlines
American Airlines
ISP
7:53a
DCA
10:59a
3h 06m
1 stop
DCA
3:35a
ISP
7:22a
3h 47m
1 stop
Depart: Sun Oct 2 2016 Return: Sat Oct 15 2016 Trip spans 14 days
American Airlines
American Airlines
ISP
7:53a
DCA
12:40p
4h 47m
1 stop
DCA
5:50a
ISP
10:54a
5h 04m
1 stop
Depart: Mon Oct 3 2016 Return: Sat Oct 15 2016 Trip spans 13 days
American Airlines
American Airlines
ISP
7:53a
DCA
12:49p
4h 56m
1 stop
DCA
5:50a
ISP
10:54a
5h 04m
1 stop
Depart: Wed Nov 2 2016 Return: Wed Nov 9 2016 Trip spans 8 days
American Airlines
American Airlines
ISP
7:53a
DCA
12:55p
5h 02m
1 stop
DCA
2:35a
ISP
6:22a
3h 47m
1 stop
Depart: Tue Oct 4 2016 Return: Sat Oct 15 2016 Trip spans 12 days
American Airlines
American Airlines
ISP
3:15a
DCA
12:24p
9h 09m
2 stops
DCA
5:50a
ISP
10:54a
5h 04m
1 stop
Depart: Sun Oct 16 2016 Return: Wed Oct 19 2016 Trip spans 4 days
American Airlines
American Airlines
ISP
3:15a
DCA
8:41a
5h 26m
1 stop
DCA
3:35a
ISP
7:22a
3h 47m
1 stop
Depart: Thu Dec 29 2016 Return: Sun Jan 1 2017 Trip spans 4 days
American Airlines
American Airlines
ISP
3:05a
DCA
7:32a
4h 27m
1 stop
DCA
2:43a
ISP
6:23a
3h 40m
1 stop
Depart: Sat Oct 8 2016 Return: Wed Oct 19 2016 Trip spans 12 days
American Airlines
American Airlines
ISP
3:40a
DCA
8:23a
4h 43m
1 stop
DCA
3:35a
ISP
7:22a
3h 47m
1 stop
Depart: Tue Oct 18 2016 Return: Tue Oct 25 2016 Trip spans 8 days
American Airlines
American Airlines
ISP
7:53a
DCA
12:55p
5h 02m
1 stop
DCA
3:35a
ISP
7:22a
3h 47m
1 stop
Depart: Tue Oct 25 2016 Return: Sun Oct 30 2016 Trip spans 6 days
American Airlines
American Airlines
ISP
7:53a
DCA
10:59a
3h 06m
1 stop
DCA
3:40a
ISP
7:22a
3h 42m
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
3542 5:40 am 7:05 am Nov 6 - Nov 20
856 6:00 am 7:20 am Oct 31 - Oct 31
3649 6:05 am 7:25 am Nov 1 - Nov 4
3649 6:05 am 7:25 am Oct 2 - Oct 30
1074 6:10 am 7:30 am Oct 8 - Nov 5
181 7:35 am 9:00 am Oct 2 - Oct 30
3366 7:35 am 9:00 am Nov 6 - Nov 21
1402 7:45 am 9:00 am Oct 31 - Oct 31
2777 7:45 am 9:00 am Oct 3 - Oct 28
2777 7:45 am 9:00 am Nov 1 - Nov 4
1147 11:15 am 12:25 pm Oct 31 - Oct 31
1795 11:15 am 12:25 pm Sep 27 - Oct 28
1795 11:15 am 12:25 pm Nov 1 - Nov 4
1795 11:15 am 12:25 pm Oct 30 - Oct 30
1094 11:20 am 12:30 pm Oct 1 - Nov 5
953 11:35 am 12:45 pm Nov 6 - Nov 14
2612 1:25 pm 2:40 pm Nov 6 - Nov 11
376 1:40 pm 2:50 pm Oct 31 - Oct 31
657 1:40 pm 2:50 pm Nov 1 - Nov 4
657 1:40 pm 2:50 pm Oct 2 - Oct 30
846 3:30 pm 4:40 pm Oct 8 - Nov 5
2366 4:55 pm 6:05 pm Oct 31 - Oct 31
3054 5:05 pm 6:15 pm Oct 8 - Nov 5
497 5:25 pm 6:40 pm Nov 6 - Nov 13
2593 5:30 pm 6:40 pm Nov 1 - Nov 4
2593 5:30 pm 6:40 pm Oct 2 - Oct 14
2593 5:30 pm 6:40 pm Oct 16 - Oct 30
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

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

We compile tonnes of data for you
Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

If you have more questions or if you have a bad price to report to us,
please send us an email and someone from our team will get back to you promptly.

Airports
Origin

Islip
$196
Destination

Washington
$196