Find Cheap Flights from London Heathrow to United States

Depart
Return
1 adult
Adults
18-64
Seniors
65+
Youths
12-17
Children
2-11
Seat Infants
under 2
Lap Infants
under 2
The price shown for each flight will be the average for all passengers including any infants.
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Book cheap flights from London Heathrow to United States

(Round-trip)
Depart: Fri Nov 17 2017 Return: Mon Nov 20 2017 Trip spans 4 days
TAP Portugal
TAP Portugal
LHR
BOS
14h 40m
1 stop
BOS
LHR
11h 40m
1 stop
Depart: Fri Nov 3 2017 Return: Fri Nov 17 2017 Trip spans 15 days
British Airways
British Airways
LHR
BOS
7h 40m
nonstop
BOS
LHR
6h 25m
nonstop
Depart: Sat Nov 18 2017 Return: Wed Nov 22 2017 Trip spans 5 days
KLM
KLM
LHR
JFK
10h 25m
1 stop
JFK
LHR
10h 05m
1 stop
Depart: Thu Sep 28 2017 Return: Sun Oct 15 2017 Trip spans 18 days
Air France
Air France
LHR
JFK
11h 10m
1 stop
JFK
LHR
11h 55m
1 stop
Depart: Thu Nov 2 2017 Return: Sun Nov 5 2017 Trip spans 4 days
Austrian Airlines
Austrian Airlines
LHR
EWR
8h 30m
nonstop
EWR
LHR
7h 05m
nonstop
Depart: Mon Oct 30 2017 Return: Fri Nov 10 2017 Trip spans 12 days
Delta
Delta
LHR
LGA
17h 00m
2 stops
LGA
LHR
12h 35m
2 stops
Depart: Mon Nov 20 2017 Return: Mon Dec 4 2017 Trip spans 15 days
Air New Zealand
Air New Zealand
LHR
LAX
11h 25m
nonstop
LAX
LHR
10h 30m
nonstop
Depart: Fri Sep 29 2017 Return: Sun Oct 15 2017 Trip spans 17 days
Virgin Atlantic
Virgin Atlantic
LHR
MSY
20h 19m
1 stop
MSY
LHR
31h 10m
1 stop
Depart: Wed Jul 5 2017 Return: Mon Jul 10 2017 Trip spans 6 days
Air India
Air India
LHR
EWR
7h 30m
nonstop
EWR
LHR
6h 45m
nonstop
Depart: Thu Aug 24 2017 Return: Mon Sep 4 2017 Trip spans 12 days
Icelandair
Icelandair
LHR
JFK
10h 50m
1 stop
JFK
LHR
18h 30m
1 stop
Depart: Mon Jun 12 2017 Return: Sun Jun 18 2017 Trip spans 7 days
Flybe
Flybe
LHR
EWR
10h 20m
1 stop
EWR
LHR
14h 30m
1 stop
Depart: Sun Jun 4 2017 Return: Sun Jun 11 2017 Trip spans 8 days
Lufthansa
Lufthansa
LHR
EWR
7h 55m
nonstop
EWR
LHR
7h 10m
nonstop
Depart: Fri Sep 22 2017 Return: Sun Sep 24 2017 Trip spans 3 days
Air Canada
Air Canada
LHR
LGA
12h 13m
1 stop
LGA
LHR
10h 45m
1 stop
Depart: Mon Sep 11 2017 Return: Thu Sep 21 2017 Trip spans 11 days
Aer Lingus
Aer Lingus
LHR
JFK
21h 45m
1 stop
JFK
LHR
9h 35m
1 stop
Depart: Mon May 29 2017 Return: Mon Jun 12 2017 Trip spans 15 days
American Airlines
American Airlines
LHR
JFK
7h 50m
nonstop
JFK
LHR
7h 10m
nonstop
Depart: Sat Aug 19 2017 Return: Mon Sep 4 2017 Trip spans 17 days
United
United
LHR
BOS
26h 22m
2 stops
BOS
LHR
16h 15m
1 stop
Depart: Thu Nov 2 2017 Return: Mon Nov 13 2017 Trip spans 12 days
Brussels Airlines
Brussels Airlines
LHR
FLL
17h 41m
2 stops
FLL
LHR
28h 05m
2 stops
Depart: Mon Oct 16 2017 Return: Thu Nov 30 2017 Trip spans 46 days
Finnair
Finnair
LHR
SJC
11h 00m
nonstop
SJC
LHR
10h 05m
nonstop
Depart: Fri Jun 9 2017 Return: Sun Jun 11 2017 Trip spans 3 days
SWISS
SWISS
LHR
SFO
15h 20m
1 stop
SFO
LHR
16h 00m
1 stop
Depart: Wed Sep 20 2017 Return: Wed Oct 4 2017 Trip spans 15 days
Turkish Airlines
Turkish Airlines
LHR
ATL
17h 55m
1 stop
ATL
LHR
17h 20m
1 stop
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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Here's why:

We’re not the seller.
At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

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Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

If you have more questions or if you have a bad price to report to us,
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Airports
Origin

London
$368
Destination

San Francisco
$659
New York
only $438
only $397
Atlanta
$683
Fort Lauderdale
$590
New Orleans
$461
Los Angeles
$447
Newark
$416
San Jose
$604
Boston
$368