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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: Tue Mar 31 2015 Return: Thu Apr 2 2015 Trip spans 3 days
Multiple Airlines
Multiple Airlines
LAX
3:45a
LHR
11:50p
20h 05m
1 stop
LHR
3:20a
LAX
7:15p
15h 55m
1 stop
Depart: Mon Mar 2 2015 Return: Wed Mar 4 2015 Trip spans 3 days
Lufthansa
Lufthansa
LAX
11:55a
LHR
10:30p
10h 35m
nonstop
LHR
2:35a
LAX
6:25p
15h 50m
1 stop
Depart: Mon Mar 30 2015 Return: Tue Mar 31 2015 Trip spans 2 days
Air Canada
Air Canada
LAX
3:30a
LHR
11:05p
19h 35m
2 stops
LHR
9:00a
LAX
3:00a
18h 00m
2 stops
Depart: Thu Mar 5 2015 Return: Fri Mar 6 2015 Trip spans 2 days
Multiple Airlines
Multiple Airlines
SNA
7:56a
LHR
11:00p
15h 04m
1 stop
LHR
10:00a
SNA
1:07p
27h 07m
2 stops
Depart: Sat Feb 28 2015 Return: Tue Mar 3 2015 Trip spans 4 days
Transaero Airlines
Transaero Airlines
LAX
9:55a
LHR
10:15p
36h 20m
1 stop
LHR
5:55a
LAX
5:25p
11h 30m
nonstop
Depart: Sat Mar 7 2015 Return: Mon Mar 9 2015 Trip spans 2 days
KLM Royal Dutch
KLM Royal Dutch
LAX
8:20a
LHR
10:00p
13h 40m
1 stop
LHR
2:30a
LAX
8:00p
17h 30m
2 stops
Depart: Fri May 8 2015 Return: Sat May 9 2015 Trip spans 2 days
Air Canada
Air Canada
BOS
4:25p
LHR
1:00a
8h 35m
1 stop
LHR
10:10a
BOS
8:53p
10h 43m
1 stop
Depart: Tue Apr 14 2015 Return: Thu Apr 16 2015 Trip spans 3 days
Multiple Airlines
Multiple Airlines
BOS
2:20p
LHR
1:25a
11h 05m
1 stop
LHR
5:05a
BOS
7:20p
14h 15m
1 stop
Depart: Mon Apr 13 2015 Return: Wed Apr 15 2015 Trip spans 3 days
United
United
BOS
1:25p
LHR
12:35a
11h 10m
1 stop
LHR
3:20a
BOS
7:20p
16h 00m
1 stop
Depart: Fri May 29 2015 Return: Sat May 30 2015 Trip spans 2 days
Multiple Airlines
Multiple Airlines
IAD
1:50p
LHR
1:15a
11h 25m
1 stop
LHR
8:35a
IAD
8:35a
24h 00m
1 stop
Depart: Thu Mar 19 2015 Return: Wed Mar 25 2015 Trip spans 7 days
Transaero Airlines
Transaero Airlines
JFK
11:25a
LHR
3:15a
15h 50m
1 stop
LHR
2:30p
JFK
1:15p
22h 45m
1 stop
Depart: Sat May 9 2015 Return: Mon May 11 2015 Trip spans 3 days
Lufthansa
Lufthansa
BOS
3:28p
LHR
1:20a
9h 52m
1 stop
LHR
2:50a
BOS
7:20p
16h 30m
1 stop
Depart: Fri Jun 5 2015 Return: Sat Jun 6 2015 Trip spans 2 days
Air Canada
Air Canada
DCA
4:00p
LHR
1:25a
9h 25m
1 stop
LHR
10:10a
DCA
10:02p
11h 52m
1 stop
Depart: Sat Mar 21 2015 Return: Sun Mar 22 2015 Trip spans 2 days
Lufthansa
Lufthansa
EWR
6:15a
LHR
1:25p
7h 10m
nonstop
LHR
4:05a
EWR
4:00p
11h 55m
1 stop
Depart: Sat May 30 2015 Return: Sun May 31 2015 Trip spans 2 days
Virgin Atlantic
Virgin Atlantic
IAD
2:00a
LHR
11:10a
9h 10m
1 stop
LHR
7:00a
IAD
3:15p
8h 15m
nonstop
Depart: Tue Apr 7 2015 Return: Thu Apr 9 2015 Trip spans 3 days
United
United
IAD
8:33a
LHR
1:25a
16h 52m
1 stop
LHR
3:20a
IAD
4:05p
12h 45m
1 stop
Depart: Sat Apr 4 2015 Return: Sun Apr 5 2015 Trip spans 2 days
Lufthansa
Lufthansa
IAD
5:20a
LHR
12:55p
7h 35m
nonstop
LHR
6:55a
IAD
8:00p
13h 05m
1 stop
Depart: Fri Apr 3 2015 Return: Sun Apr 5 2015 Trip spans 3 days
US Airways
US Airways
BOS
1:01p
LHR
12:00a
10h 59m
1 stop
LHR
2:20a
BOS
3:30p
13h 10m
1 stop
Depart: Mon Apr 6 2015 Return: Wed Apr 8 2015 Trip spans 3 days
Iberia
Iberia
BOS
1:30p
LHR
4:30a
15h 00m
1 stop
LHR
8:50a
BOS
10:17p
13h 27m
1 stop
Depart: Sun Apr 26 2015 Return: Mon Apr 27 2015 Trip spans 2 days
Virgin Atlantic
Virgin Atlantic
DEN
8:00a
LHR
11:00p
15h 00m
1 stop
LHR
10:00a
DEN
12:29a
14h 29m
1 stop
Change your search
Airports
Origin

New York
$714
Santa Ana
$670
Los Angeles
$641
Newark
$722
Denver
$737
Washington
only $710
only $719
Boston
$702
Destination

London
$641