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Find Flight Deals from United States to London Heathrow

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

Book cheap flights to London Heathrow

(Round-trip)
Depart: Fri Apr 17 2015 Return: Sun Apr 19 2015 Trip spans 3 days
United
United
EWR
4:00p
LHR
5:35a
13h 35m
1 stop
LHR
4:40a
EWR
12:45p
8h 05m
nonstop
Depart: Sat Apr 18 2015 Return: Sun Apr 19 2015 Trip spans 2 days
Air Canada
Air Canada
JFK
2:55a
LHR
9:25p
18h 30m
1 stop
LHR
5:50a
JFK
11:37p
41h 47m
2 stops
Depart: Thu May 14 2015 Return: Mon May 25 2015 Trip spans 12 days
Icelandair
Icelandair
JFK
10:10a
LHR
2:45a
16h 35m
1 stop
LHR
5:10p
JFK
1:25p
20h 15m
1 stop
Depart: Sat May 9 2015 Return: Sat May 16 2015 Trip spans 8 days
Air India
Air India
JFK
5:00p
LHR
12:00a
7h 00m
nonstop
LHR
11:30a
JFK
7:30p
8h 00m
nonstop
Depart: Fri Apr 3 2015 Return: Sun Apr 5 2015 Trip spans 3 days
Air Canada
Air Canada
LGA
1:30p
LHR
4:05a
14h 35m
2 stops
LHR
9:05a
LGA
8:18p
11h 13m
1 stop
Depart: Sat Feb 7 2015 Return: Mon Feb 9 2015 Trip spans 3 days
Multiple Airlines
Multiple Airlines
EWR
4:05p
LHR
1:50a
9h 45m
1 stop
LHR
3:05a
EWR
3:00p
11h 55m
1 stop
Depart: Fri Jan 16 2015 Return: Sun Jan 18 2015 Trip spans 3 days
Multiple Airlines
Multiple Airlines
JFK
5:35a
LHR
1:50a
20h 15m
1 stop
LHR
2:35a
JFK
3:45p
13h 10m
1 stop
Depart: Mon Mar 30 2015 Return: Tue Apr 14 2015 Trip spans 16 days
Icelandair
Icelandair
EWR
4:45p
LHR
2:45a
10h 00m
1 stop
LHR
9:00a
EWR
8:00p
11h 00m
1 stop
Depart: Sat Feb 28 2015 Return: Sun Mar 1 2015 Trip spans 2 days
US Airways
US Airways
JFK
3:30a
LHR
10:15a
6h 45m
nonstop
LHR
4:30a
JFK
3:35p
11h 05m
1 stop
Depart: Sat Jan 10 2015 Return: Mon Jan 12 2015 Trip spans 3 days
Lufthansa
Lufthansa
EWR
11:40a
LHR
1:55a
14h 15m
1 stop
LHR
3:40a
EWR
12:00p
8h 20m
nonstop
Depart: Mon Jan 19 2015 Return: Mon Feb 2 2015 Trip spans 15 days
Icelandair
Icelandair
BOS
3:35p
LHR
1:30a
9h 55m
1 stop
LHR
8:00a
BOS
5:40p
9h 40m
1 stop
Depart: Thu Jan 8 2015 Return: Sat Jan 10 2015 Trip spans 3 days
Finnair
Finnair
JFK
3:25p
LHR
9:15a
17h 50m
1 stop
LHR
1:05p
JFK
3:55p
26h 50m
1 stop
Depart: Wed Jan 14 2015 Return: Thu Feb 26 2015 Trip spans 44 days
Turkish Airlines
Turkish Airlines
JFK
8:15a
LHR
5:10a
20h 55m
1 stop
LHR
5:30p
JFK
11:45a
18h 15m
1 stop
Depart: Sun Jan 11 2015 Return: Wed Jan 21 2015 Trip spans 11 days
Turkish Airlines
Turkish Airlines
BOS
5:55p
LHR
11:00a
17h 05m
1 stop
LHR
11:10a
BOS
5:35p
30h 25m
1 stop
Depart: Sun Mar 15 2015 Return: Mon Apr 6 2015 Trip spans 23 days
Turkish Airlines
Turkish Airlines
IAD
8:30p
LHR
2:25a
29h 55m
1 stop
LHR
10:00a
IAD
7:10p
33h 10m
1 stop
Depart: Fri Dec 26 2014 Return: Sun Dec 28 2014 Trip spans 3 days
British Airways
British Airways
PHL
1:35p
LHR
8:40p
7h 05m
nonstop
LHR
1:30a
PHL
4:05p
14h 35m
1 stop
Depart: Sat Dec 27 2014 Return: Mon Dec 29 2014 Trip spans 3 days
Iberia
Iberia
PHL
4:15p
LHR
11:25p
7h 10m
nonstop
LHR
1:30a
PHL
4:05p
14h 35m
1 stop
Depart: Thu Apr 2 2015 Return: Thu Apr 9 2015 Trip spans 8 days
Kuwait Airways
Kuwait Airways
JFK
6:00p
LHR
1:00a
7h 00m
nonstop
LHR
12:30p
JFK
8:30p
8h 00m
nonstop
Depart: Sun May 3 2015 Return: Sat May 9 2015 Trip spans 7 days
Turkish Airlines
Turkish Airlines
HOU
4:00p
LHR
12:30p
20h 30m
1 stop
LHR
1:40p
HOU
8:05p
30h 25m
1 stop
Depart: Fri Jan 2 2015 Return: Fri Jan 9 2015 Trip spans 8 days
Transaero Airlines
Transaero Airlines
LAX
12:15p
LHR
11:00p
10h 45m
nonstop
LHR
1:30p
LAX
4:10p
26h 40m
1 stop
Change your search
Airports
Origin

New York City
only $673
only $663
Los Angeles
$1060
Newark
$623
Philadelphia
$735
Washington
$730
Houston
$872
Boston
$706
Destination

London
$623