Find Cheap 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 Jan 11 2018 Return: Tue Jan 16 2018 Trip spans 6 days
American Airlines
American Airlines
ISP
12:00a
DCA
3:05a
3h 05m
1 stop
DCA
12:00a
ISP
4:22a
4h 22m
1 stop
Depart: Fri Jan 26 2018 Return: Mon Jan 29 2018 Trip spans 4 days
Frontier
Frontier
ISP
12:00a
IAD
4:24p
16h 24m
1 stop
IAD
12:00a
ISP
7:03a
7h 03m
1 stop
Depart: Sat Dec 9 2017 Return: Mon Dec 11 2017 Trip spans 3 days
American Airlines
American Airlines
ISP
12:00a
DCA
3:28a
3h 28m
1 stop
DCA
12:00a
ISP
4:08a
4h 08m
1 stop
Depart: Tue Nov 28 2017 Return: Thu Nov 30 2017 Trip spans 3 days
Frontier
Frontier
ISP
12:00a
IAD
4:46p
16h 46m
1 stop
IAD
12:00a
ISP
8:15a
32h 15m
2 stops
Depart: Thu Nov 30 2017 Return: Sun Dec 3 2017 Trip spans 4 days
American Airlines
American Airlines
ISP
12:00a
DCA
3:02a
3h 02m
1 stop
DCA
12:00a
ISP
4:08a
4h 08m
1 stop
Depart: Fri Dec 1 2017 Return: Sun Dec 3 2017 Trip spans 3 days
Frontier
Frontier
ISP
12:00a
IAD
6:00a
30h 00m
2 stops
IAD
12:00a
ISP
10:30p
22h 30m
1 stop
Depart: Wed Feb 21 2018 Return: Fri Feb 23 2018 Trip spans 3 days
Frontier
Frontier
ISP
12:00a
DCA
1:18a
25h 18m
2 stops
DCA
12:00a
ISP
1:38a
25h 38m
2 stops
Depart: Thu Feb 15 2018 Return: Thu Feb 22 2018 Trip spans 8 days
American Airlines
American Airlines
ISP
12:00a
IAD
9:08a
9h 08m
3 stops
IAD
12:00a
ISP
9:01a
9h 01m
3 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
5153 5:45 am 7:00 am Dec 20 - Jan 2
2212 5:50 am 7:05 am Dec 23 - Dec 30
488 6:05 am 7:20 am Nov 23 - Nov 30
488 6:05 am 7:20 am Dec 25 - Dec 25
488 6:05 am 7:20 am Dec 1 - Dec 19
3663 6:20 am 7:35 am Dec 2 - Dec 16
2182 6:30 am 7:45 am Dec 31 - Dec 31
3376 6:40 am 7:55 am Dec 3 - Dec 17
449 6:40 am 8:00 am Dec 24 - Dec 24
1019 8:55 am 10:10 am Nov 28 - Dec 19
1019 8:55 am 10:10 am Dec 25 - Dec 25
3683 9:35 am 10:50 am Dec 3 - Dec 17
3683 9:35 am 10:50 am Dec 31 - Dec 31
4044 10:20 am 11:35 am Dec 23 - Dec 30
1017 10:25 am 11:40 am Dec 15 - Dec 19
1124 10:30 am 11:45 am Dec 20 - Jan 2
3993 11:35 am 12:50 pm Dec 24 - Dec 24
3994 11:55 am 1:10 pm Dec 3 - Dec 17
3994 11:55 am 1:10 pm Dec 31 - Dec 31
2728 12:15 pm 1:30 pm Dec 2 - Dec 16
2749 12:30 pm 1:45 pm Dec 23 - Dec 30
3480 1:35 pm 2:50 pm Dec 31 - Dec 31
351 1:35 pm 2:50 pm Dec 24 - Dec 24
815 1:35 pm 2:50 pm Dec 3 - Dec 17
6655 2:15 pm 3:30 pm Dec 20 - Jan 2
400 2:40 pm 3:55 pm Dec 4 - Dec 19
400 2:40 pm 3:55 pm Dec 25 - Dec 25
400 2:40 pm 3:55 pm Nov 24 - Dec 1
4946 2:55 pm 4:10 pm Dec 16 - Dec 16
4946 2:55 pm 4:10 pm Dec 2 - Dec 2
2109 3:50 pm 5:05 pm Dec 23 - Dec 30
2860 4:25 pm 5:40 pm Dec 2 - Dec 16
933 5:30 pm 6:45 pm Nov 28 - Dec 19
933 5:30 pm 6:45 pm Dec 25 - Jan 1
2409 5:35 pm 6:50 pm Dec 23 - Dec 30
5713 5:45 pm 7:00 pm Dec 29 - Jan 2
5713 5:45 pm 7:00 pm Dec 22 - Dec 26
5713 5:45 pm 7:00 pm Dec 20 - Dec 28
3992 6:00 pm 7:15 pm Dec 24 - Dec 24
3992 6:00 pm 7:15 pm Dec 3 - Dec 17
3185 7:40 pm 8:55 pm Dec 20 - Jan 2
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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Airports
Origin

Islip
$144
Destination

Washington
only $176
only $144