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Find flight deals from United Kingdom to Islip Long Island

Flexible dates? Here are the best fares found in the past 48 hours...

Book cheap flights to Islip Long Island

(Round-trip)
Depart: Tue 22 Sep 2015 Return: Wed 28 Oct 2015 Trip spans 37 days
£609
Select
American Airlines
American Airlines
LHR
08:45
ISP
22:14
13h 29m
1 stop
ISP
04:05
LHR
14:10
10h 05m
1 stop
Depart: Tue 30 Jun 2015 Return: Tue 28 Jul 2015 Trip spans 29 days
£614
Select
American Airlines
American Airlines
LHR
04:20
ISP
15:22
11h 02m
1 stop
ISP
14:50
LHR
13:10
22h 20m
1 stop
Depart: Wed 1 Jul 2015 Return: Tue 28 Jul 2015 Trip spans 28 days
£614
Select
American Airlines
American Airlines
LHR
04:20
ISP
15:22
11h 02m
1 stop
ISP
14:50
LHR
13:10
22h 20m
1 stop
Depart: Mon 15 Jun 2015 Return: Tue 4 Aug 2015 Trip spans 51 days
£618
Select
American Airlines
American Airlines
LHR
08:45
ISP
19:15
10h 30m
1 stop
ISP
14:50
LHR
01:00
10h 10m
1 stop
Depart: Sat 4 Jul 2015 Return: Tue 28 Jul 2015 Trip spans 25 days
£627
Select
American Airlines
American Airlines
LHR
02:20
ISP
19:50
17h 30m
2 stops
ISP
14:50
LHR
13:10
22h 20m
1 stop
Depart: Mon 30 Nov 2015 Return: Tue 29 Dec 2015 Trip spans 30 days
£631
Select
US Airways
US Airways
LHR
07:05
ISP
21:14
14h 09m
1 stop
ISP
08:53
LHR
23:25
14h 32m
1 stop
Depart: Wed 17 Jun 2015 Return: Tue 4 Aug 2015 Trip spans 49 days
£631
Select
American Airlines
American Airlines
LHR
13:25
ISP
12:27
23h 02m
1 stop
ISP
14:50
LHR
01:00
10h 10m
1 stop
Depart: Thu 18 Jun 2015 Return: Tue 4 Aug 2015 Trip spans 48 days
£631
Select
American Airlines
American Airlines
LHR
04:20
ISP
15:22
11h 02m
1 stop
ISP
14:50
LHR
01:00
10h 10m
1 stop
Depart: Mon 25 May 2015 Return: Thu 4 Jun 2015 Trip spans 11 days
£633
Select
American Airlines
American Airlines
LHR
04:20
ISP
15:20
11h 00m
1 stop
ISP
14:42
LHR
00:00
9h 18m
1 stop
Depart: Thu 28 May 2015 Return: Thu 4 Jun 2015 Trip spans 8 days
£633
Select
American Airlines
American Airlines
LHR
06:15
ISP
22:24
16h 09m
1 stop
ISP
14:42
LHR
00:00
9h 18m
1 stop
Depart: Sun 30 Aug 2015 Return: Tue 15 Sep 2015 Trip spans 17 days
£634
Select
American Airlines
American Airlines
MAN
07:00
ISP
22:14
15h 14m
1 stop
ISP
09:53
MAN
00:05
14h 12m
2 stops
Depart: Fri 3 Jul 2015 Return: Tue 28 Jul 2015 Trip spans 26 days
£634
Select
American Airlines
American Airlines
LHR
06:15
ISP
19:15
13h 00m
1 stop
ISP
14:50
LHR
13:10
22h 20m
1 stop
Depart: Thu 2 Jul 2015 Return: Tue 28 Jul 2015 Trip spans 27 days
£636
Select
American Airlines
American Airlines
LHR
04:20
ISP
15:22
11h 02m
1 stop
ISP
14:50
LHR
13:10
22h 20m
1 stop
Depart: Mon 6 Jul 2015 Return: Tue 28 Jul 2015 Trip spans 23 days
£636
Select
American Airlines
American Airlines
LHR
06:15
ISP
19:25
13h 10m
1 stop
ISP
14:50
LHR
13:10
22h 20m
1 stop
Depart: Thu 6 Aug 2015 Return: Tue 11 Aug 2015 Trip spans 6 days
£636
Select
American Airlines
American Airlines
LHR
06:15
ISP
22:25
16h 10m
1 stop
ISP
14:50
LHR
01:00
10h 10m
1 stop
Depart: Thu 29 Oct 2015 Return: Mon 2 Nov 2015 Trip spans 5 days
£636
Select
US Airways
US Airways
LHR
07:05
ISP
21:14
14h 09m
1 stop
ISP
08:53
LHR
23:25
14h 32m
1 stop
Depart: Thu 30 Jul 2015 Return: Tue 4 Aug 2015 Trip spans 6 days
£640
Select
American Airlines
American Airlines
EDI
03:05
ISP
19:25
16h 20m
2 stops
ISP
10:47
EDI
00:15
13h 28m
2 stops
Depart: Thu 11 Jun 2015 Return: Sun 21 Jun 2015 Trip spans 11 days
£640
Select
American Airlines
American Airlines
LHR
08:45
ISP
19:15
10h 30m
1 stop
ISP
14:42
LHR
13:10
22h 28m
1 stop
Depart: Wed 10 Jun 2015 Return: Tue 16 Jun 2015 Trip spans 7 days
£722
Select
US Airways
US Airways
MAN
07:00
ISP
19:15
12h 15m
1 stop
ISP
14:42
MAN
23:50
9h 08m
1 stop
Depart: Tue 7 Jul 2015 Return: Mon 13 Jul 2015 Trip spans 7 days
£957
Select
US Airways
US Airways
LGW
17:15
ISP
22:25
29h 10m
2 stops
ISP
03:35
LGW
05:00
25h 25m
2 stops
Airports
Origin

London
only £609
only £957
Manchester
£634
Edinburgh
£640
Destination

Islip
£609