Find Deals on Flights from London to San Francisco (LON - SFO)

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

Book cheap flights from London to San Francisco

(Round-trip)
Depart: Sat Apr 16 2016 Return: Sun Apr 17 2016 Trip spans 2 days
Austrian Airlines
Austrian Airlines
LHR
SFO
16h 45m
1 stop
SFO
LHR
13h 03m
1 stop
Depart: Sat Apr 23 2016 Return: Sun Apr 24 2016 Trip spans 2 days
United
United
LHR
SFO
20h 15m
1 stop
SFO
LHR
14h 36m
1 stop
Depart: Mon Aug 29 2016 Return: Thu Sep 29 2016 Trip spans 32 days
WOW air
WOW air
LGW
SFO
13h 20m
1 stop
SFO
LGW
13h 30m
1 stop
Depart: Thu May 19 2016 Return: Mon May 30 2016 Trip spans 12 days
WestJet
WestJet
LGW
SFO
17h 12m
1 stop
SFO
LGW
19h 07m
1 stop
Depart: Sun Mar 6 2016 Return: Sun Mar 13 2016 Trip spans 8 days
Aer Lingus
Aer Lingus
LGW
SFO
14h 15m
1 stop
SFO
LGW
13h 25m
1 stop
Depart: Mon Feb 22 2016 Return: Mon Feb 29 2016 Trip spans 8 days
Aer Lingus
Aer Lingus
LHR
SFO
15h 35m
1 stop
SFO
LHR
15h 25m
1 stop
Depart: Thu Feb 25 2016 Return: Tue Mar 1 2016 Trip spans 6 days
Finnair
Finnair
LHR
SFO
11h 05m
nonstop
SFO
LHR
10h 25m
nonstop
Depart: Thu Feb 11 2016 Return: Thu Feb 25 2016 Trip spans 15 days
Virgin Atlantic
Virgin Atlantic
LHR
SFO
11h 00m
nonstop
SFO
LHR
10h 30m
nonstop
Depart: Thu Aug 25 2016 Return: Tue Aug 30 2016 Trip spans 6 days
Major Airline
Major Airline
LHR
SFO
21h 32m
1 stop
SFO
LHR
33h 00m
1 stop
Depart: Tue Mar 8 2016 Return: Sun Mar 20 2016 Trip spans 12 days
Iberia
Iberia
LHR
SFO
17h 02m
1 stop
SFO
LHR
14h 15m
1 stop
Depart: Tue Aug 16 2016 Return: Tue Aug 30 2016 Trip spans 15 days
KLM
KLM
LHR
SFO
22h 45m
1 stop
SFO
LHR
15h 30m
1 stop
Depart: Wed Jun 1 2016 Return: Mon Jul 4 2016 Trip spans 34 days
KLM
KLM
LCY
SFO
15h 05m
1 stop
SFO
LCY
17h 40m
1 stop
Depart: Tue May 17 2016 Return: Wed May 25 2016 Trip spans 9 days
American Airlines
American Airlines
LGW
SFO
16h 47m
1 stop
SFO
LGW
14h 35m
1 stop
Depart: Fri May 6 2016 Return: Fri May 13 2016 Trip spans 8 days
SAS
SAS
LHR
SFO
26h 15m
1 stop
SFO
LHR
14h 25m
1 stop
Depart: Wed Jul 6 2016 Return: Wed Jul 13 2016 Trip spans 8 days
$1094
Select
Turkish Airlines
Turkish Airlines
LHR
SFO
30h 25m
1 stop
SFO
LHR
31h 40m
1 stop
Depart: Wed Aug 17 2016 Return: Tue Aug 30 2016 Trip spans 14 days
$1211
Select
Brussels Airlines
Brussels Airlines
LHR
SFO
10h 50m
nonstop
SFO
LHR
10h 20m
nonstop
Direct flights LON to SFO on Delta
Flight # Depart LHR Arrive SFO Sun Mon Tue Wed Thu Fri Sat Valid Between
4390 10:45 am 2:10 pm Feb 29 - Mar 12
4390 10:45 am 2:10 pm Feb 8 - Feb 18
4390 10:45 am 2:10 pm Feb 20 - Feb 26
4390 10:45 am 3:10 pm Mar 13 - Mar 26
4362 12:20 pm 4:20 pm Mar 13 - Mar 20
4362 12:20 pm 3:20 pm Mar 8 - Mar 12
4362 12:20 pm 3:20 pm Feb 8 - Feb 18
4362 12:20 pm 3:20 pm Feb 29 - Mar 6
4362 12:20 pm 3:20 pm Feb 21 - Feb 25
4362 3:40 pm 6:40 pm Feb 28 - Feb 28
4362 4:35 pm 7:35 pm Feb 20 - Feb 27
4390 4:35 pm 7:35 pm Feb 19 - Feb 19
* 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.

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Airports
Origin

London
only $621
only $942
only $688
Destination

San Francisco
$621