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Find Flight Deals from United States to London

Dates flexible? Here are the best fares found in the past 48 hours...

Book cheap flights to London

(Round-trip)
Depart: Thu Apr 2 2015 Return: Mon Apr 6 2015 Trip spans 5 days
WOW air
WOW air
BOS
2:55p
LGW
1:50a
10h 55m
1 stop
LGW
4:40p
BOS
6:30p
25h 50m
1 stop
Depart: Sun Feb 8 2015 Return: Tue Feb 10 2015 Trip spans 3 days
Norwegian
Norwegian
JFK
5:00p
LGW
10:10a
17h 10m
2 stops
LGW
1:05p
JFK
9:00p
7h 55m
nonstop
Depart: Wed Jan 21 2015 Return: Sun Feb 8 2015 Trip spans 19 days
Norwegian
Norwegian
LAX
1:20p
LGW
11:50p
10h 30m
nonstop
LGW
7:50a
LAX
7:20p
11h 30m
nonstop
Depart: Sat Apr 18 2015 Return: Mon Apr 20 2015 Trip spans 3 days
United
United
EWR
5:40p
LHR
1:10a
7h 30m
nonstop
LHR
3:05a
EWR
2:55p
11h 50m
1 stop
Depart: Sun Mar 22 2015 Return: Wed Apr 22 2015 Trip spans 32 days
Icelandair
Icelandair
JFK
5:00p
LHR
3:30a
10h 30m
1 stop
LHR
9:00a
JFK
8:00p
11h 00m
1 stop
Depart: Mon Mar 9 2015 Return: Sun Mar 15 2015 Trip spans 7 days
Icelandair
Icelandair
EWR
4:55p
LGW
3:15a
10h 20m
1 stop
LGW
4:55p
EWR
7:00p
26h 05m
1 stop
Depart: Fri Jan 9 2015 Return: Wed Jan 14 2015 Trip spans 6 days
Multiple Airlines
Multiple Airlines
JFK
5:13p
STN
10:10a
16h 57m
1 stop
STN
8:45a
JFK
1:42p
28h 57m
1 stop
Depart: Sat Jan 10 2015 Return: Thu Jan 15 2015 Trip spans 6 days
Multiple Airlines
Multiple Airlines
LGA
11:30a
STN
9:50p
34h 20m
2 stops
STN
5:10p
LGA
9:57p
28h 47m
2 stops
Depart: Sat Dec 27 2014 Return: Sun Dec 28 2014 Trip spans 2 days
British Airways
British Airways
PHL
12:45a
LHR
12:40p
11h 55m
1 stop
LHR
8:15a
PHL
4:20p
8h 05m
nonstop
Depart: Mon Jun 1 2015 Return: Sat Jun 13 2015 Trip spans 13 days
Icelandair
Icelandair
BOS
5:30p
LHR
2:45a
9h 15m
1 stop
LHR
9:00a
BOS
7:35p
10h 35m
1 stop
Depart: Mon Dec 29 2014 Return: Tue Jan 27 2015 Trip spans 30 days
Air Canada
Air Canada
LGA
3:30a
LHR
11:35p
20h 05m
1 stop
LHR
8:00a
LGA
7:20p
11h 20m
1 stop
Depart: Mon Jan 5 2015 Return: Sun Jan 11 2015 Trip spans 7 days
Multiple Airlines
Multiple Airlines
JFK
11:30a
LTN
7:15a
19h 45m
3 stops
LTN
1:30a
JFK
5:20p
15h 50m
2 stops
Depart: Sun May 17 2015 Return: Sat Jun 6 2015 Trip spans 21 days
Icelandair
Icelandair
IAD
4:35p
LHR
2:45a
10h 10m
1 stop
LHR
5:10p
IAD
1:45p
20h 35m
1 stop
Change your search
Airports
Origin

New York City
only $695
only $564
Los Angeles
$635
Newark
$669
Philadelphia
$731
Washington
$797
Boston
$561
Destination

London
only $669
only $797
only $561
only $695