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Find Deals on Flights 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: Sat Nov 14 2015 Return: Mon Nov 16 2015 Trip spans 3 days
United
United
EWR
LHR
9h 35m
1 stop
LHR
EWR
15h 45m
1 stop
Depart: Sat Nov 7 2015 Return: Mon Nov 9 2015 Trip spans 3 days
United
United
BOS
LHR
12h 35m
2 stops
LHR
BOS
15h 55m
1 stop
Depart: Sat Dec 12 2015 Return: Mon Dec 14 2015 Trip spans 3 days
United
United
IAD
LHR
12h 10m
1 stop
LHR
IAD
12h 45m
1 stop
Depart: Mon Nov 16 2015 Return: Wed Nov 18 2015 Trip spans 3 days
Icelandair
Icelandair
JFK
LHR
18h 30m
1 stop
LHR
JFK
10h 05m
1 stop
Depart: Fri Jan 22 2016 Return: Sun Jan 24 2016 Trip spans 3 days
American Airlines
American Airlines
PHL
LHR
9h 10m
1 stop
LHR
PHL
12h 15m
1 stop
Depart: Fri Oct 30 2015 Return: Sun Nov 1 2015 Trip spans 3 days
US Airways
US Airways
ISP
LHR
10h 35m
1 stop
LHR
ISP
15h 03m
2 stops
Depart: Fri Dec 18 2015 Return: Sun Jan 3 2016 Trip spans 17 days
United
United
LGA
LHR
8h 55m
1 stop
LHR
LGA
13h 52m
1 stop
Depart: Fri Sep 4 2015 Return: Sun Sep 6 2015 Trip spans 3 days
United
United
ORD
LHR
9h 35m
1 stop
LHR
ORD
12h 05m
1 stop
Depart: Sat Oct 3 2015 Return: Mon Oct 5 2015 Trip spans 3 days
United
United
MCO
LHR
11h 45m
1 stop
LHR
MCO
13h 13m
1 stop
Depart: Tue Sep 1 2015 Return: Mon Sep 28 2015 Trip spans 28 days
US Airways
US Airways
DTW
LHR
16h 15m
1 stop
LHR
DTW
20h 59m
2 stops
Depart: Thu Oct 8 2015 Return: Sat Oct 10 2015 Trip spans 3 days
Aeroflot
Aeroflot
LAX
LHR
31h 05m
1 stop
LHR
LAX
24h 50m
1 stop
Depart: Fri Jan 29 2016 Return: Fri Feb 5 2016 Trip spans 8 days
United
United
DCA
LHR
9h 55m
1 stop
LHR
DCA
11h 55m
1 stop
Depart: Mon Sep 28 2015 Return: Fri Oct 9 2015 Trip spans 12 days
US Airways
US Airways
HPN
LHR
10h 04m
1 stop
LHR
HPN
15h 38m
2 stops
Depart: Fri Sep 18 2015 Return: Sun Sep 20 2015 Trip spans 3 days
American Airlines
American Airlines
MIA
LHR
15h 10m
1 stop
LHR
MIA
14h 05m
1 stop
Depart: Fri Dec 4 2015 Return: Sun Dec 6 2015 Trip spans 3 days
KLM Royal Dutch
KLM Royal Dutch
MDW
LHR
11h 10m
1 stop
LHR
MDW
15h 10m
2 stops
Depart: Mon Jan 18 2016 Return: Mon Feb 15 2016 Trip spans 29 days
SAS
SAS
SFO
LHR
14h 30m
1 stop
LHR
SFO
16h 05m
1 stop
Depart: Tue Dec 15 2015 Return: Thu Dec 31 2015 Trip spans 17 days
British Airways
British Airways
BWI
LHR
7h 15m
nonstop
LHR
BWI
8h 35m
nonstop
Depart: Sun Sep 27 2015 Return: Thu Oct 8 2015 Trip spans 12 days
United
United
PDX
LHR
20h 40m
1 stop
LHR
PDX
16h 03m
1 stop
Depart: Tue Oct 20 2015 Return: Sat Oct 31 2015 Trip spans 12 days
US Airways
US Airways
CMH
LHR
15h 35m
1 stop
LHR
CMH
16h 15m
1 stop
Depart: Sun Aug 30 2015 Return: Thu Sep 10 2015 Trip spans 12 days
United
United
ONT
LHR
26h 03m
1 stop
LHR
ONT
14h 07m
1 stop
Airports
Origin

New York
only $673
only $780
Detroit
$824
Portland
$930
Chicago
only $783
only $866
White Plains
$849
Washington
only $638
only $842
Miami
$856
San Francisco
$904
Islip
$757
Baltimore
$915
Orlando
$806
Columbus
$931
Los Angeles
$825
Newark
$619
Ontario
$946
Philadelphia
$705
Boston
$633
Destination

London
$619