Find Deals on Flights from United States to London

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.
Compare vs. KAYAK all | none
Browse Origins:
Browse Destinations:

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

Book cheap flights to London

(Round-trip)
Depart: Mon Apr 25 2016 Return: Thu May 5 2016 Trip spans 11 days
Norwegian
Norwegian
BOS
LGW
6h 20m
nonstop
LGW
BOS
7h 15m
nonstop
Depart: Wed Apr 13 2016 Return: Fri Apr 22 2016 Trip spans 10 days
Norwegian
Norwegian
JFK
LGW
7h 00m
nonstop
LGW
JFK
8h 00m
nonstop
Depart: Fri May 6 2016 Return: Mon May 9 2016 Trip spans 4 days
Icelandair
Icelandair
JFK
LHR
10h 05m
1 stop
LHR
JFK
10h 50m
1 stop
Depart: Thu Mar 3 2016 Return: Thu Apr 28 2016 Trip spans 56 days
Norwegian
Norwegian
LAX
LGW
10h 30m
nonstop
LGW
LAX
11h 20m
nonstop
Depart: Sat Mar 26 2016 Return: Sun Apr 3 2016 Trip spans 9 days
Major Airline
Major Airline
BOS
LHR
6h 25m
nonstop
LHR
BOS
7h 15m
nonstop
Depart: Wed May 18 2016 Return: Tue May 31 2016 Trip spans 14 days
Major Airline
Major Airline
LGA
LGW
13h 11m
1 stop
LGW
LGA
12h 45m
1 stop
Depart: Mon Mar 21 2016 Return: Wed Apr 13 2016 Trip spans 24 days
Turkish Airlines
Turkish Airlines
IAD
LGW
29h 15m
1 stop
LGW
IAD
35h 40m
1 stop
Depart: Tue Mar 1 2016 Return: Tue Mar 8 2016 Trip spans 8 days
Turkish Airlines
Turkish Airlines
ORD
LGW
29h 55m
1 stop
LGW
ORD
35h 20m
1 stop
Depart: Fri Jun 3 2016 Return: Fri Jun 10 2016 Trip spans 8 days
Major Airline
Major Airline
EWR
LGW
10h 00m
1 stop
LGW
EWR
10h 50m
1 stop
Depart: Fri Mar 11 2016 Return: Sun Mar 13 2016 Trip spans 3 days
United
United
IAD
LHR
17h 26m
1 stop
LHR
IAD
17h 40m
1 stop
Depart: Fri Mar 4 2016 Return: Sat Mar 12 2016 Trip spans 9 days
United
United
EWR
LHR
7h 00m
nonstop
LHR
EWR
8h 50m
nonstop
Depart: Thu Mar 10 2016 Return: Sat Mar 12 2016 Trip spans 3 days
Major Airline
Major Airline
DCA
LHR
9h 10m
1 stop
LHR
DCA
11h 36m
1 stop
Depart: Sat Mar 5 2016 Return: Sat Apr 16 2016 Trip spans 42 days
United
United
LGA
LHR
13h 36m
1 stop
LHR
LGA
20h 47m
1 stop
Depart: Mon Feb 22 2016 Return: Tue Mar 1 2016 Trip spans 9 days
Turkish Airlines
Turkish Airlines
ORD
LHR
19h 00m
1 stop
LHR
ORD
36h 15m
1 stop
Depart: Sun Mar 6 2016 Return: Mon Mar 14 2016 Trip spans 8 days
Turkish Airlines
Turkish Airlines
SFO
LGW
37h 35m
1 stop
LGW
SFO
31h 25m
1 stop
Depart: Mon Apr 18 2016 Return: Wed Apr 27 2016 Trip spans 10 days
SWISS
SWISS
EWR
LCY
15h 00m
1 stop
LCY
EWR
12h 45m
1 stop
Depart: Wed Mar 30 2016 Return: Sun Apr 3 2016 Trip spans 5 days
Air Canada
Air Canada
LAX
LHR
52h 15m
2 stops
LHR
LAX
22h 40m
1 stop
Depart: Sun Jun 26 2016 Return: Mon Jul 4 2016 Trip spans 9 days
Turkish Airlines
Turkish Airlines
ATL
LHR
30h 05m
1 stop
LHR
ATL
25h 50m
1 stop
Depart: Sat Apr 2 2016 Return: Tue Apr 12 2016 Trip spans 11 days
British Airways
British Airways
BWI
LHR
7h 20m
nonstop
LHR
BWI
8h 20m
nonstop
Depart: Wed Feb 10 2016 Return: Tue Feb 16 2016 Trip spans 7 days
Aeromexico
Aeromexico
SFO
LHR
18h 20m
1 stop
LHR
SFO
21h 40m
1 stop
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

We make every attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

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

We aggregate tons of data for you
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 don'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.

More questions or if you have a bad price to report to us
Please send us an email and someone from our team will get back to you promptly.

Airports
Origin

San Francisco
$703
New York
only $562
only $469
Baltimore
$816
Chicago
$632
Atlanta
$815
Los Angeles
$539
Newark
$661
Washington
only $631
only $690
Boston
$381
Destination

London
only $515
only $721
only $381