Flights from London Heathrow to San Francisco

Our cheapest offers for flights from London Heathrow to San Francisco

Here you can compare cheap flights from London Heathrow (LHR) to San Francisco (SFO) for one-way or return trips. The following offers were searched for and found on idealo during the last few days. Or start your own flight search to San Francisco. Prices and availability may change at any time.

Outbound Return Airlines Shop Baggage Price
London Heathrow
San Francisco
Outbound
03/23/26
1 Stopover (CPH)
SK0500, SK0935
15h 55min
Return
04/20/26
1 Stopover (CPH)
SK0936, SK1517
16h 55min
SAS Scandinavian Airlines ?
$591
Best option
London Heathrow
San Francisco
Outbound
03/23/26
direct
AY5527
11h 20min
Return
04/20/26
direct
AY5526
10h 25min
Finnair
$734
London Heathrow
San Francisco
Outbound
03/23/26
2 Stopovers (FRA, SEA)
LH0901, DE2032, AS0528
19h 40min
Return
04/20/26
2 Stopovers (SEA, FRA)
AS0656, DE2033, LH0914
23h 30min
Lufthansa, Condor, Alaska Airlines
$1,056
London Heathrow
San Francisco
Outbound
03/23/26
1 Stopover (CPH)
SK1508, SK0935
27h 05min
Return
04/20/26
1 Stopover (CPH)
SK0936, SK0505
15h 15min
SAS Scandinavian Airlines ?
$599
London Heathrow
San Francisco
Outbound
03/23/26
1 Stopover (CPH)
SK0500, SK0935
15h 55min
Return
04/20/26
2 Stopovers (CPH, OSL)
SK0936, SK1456, SK0809
15h 40min
SAS Scandinavian Airlines
$606
London Heathrow
San Francisco
Outbound
03/23/26
1 Stopover (CPH)
SK0500, SK0935
15h 55min
Return
04/20/26
2 Stopovers (CPH, OSL)
SK0936, SK1456, SK0809
15h 40min
SAS Scandinavian Airlines
$608
London Heathrow
San Francisco
Outbound
03/23/26
1 Stopover (CPH)
SK0502, SK0935
36h 15min
Return
04/20/26
1 Stopover (CPH)
SK0936, SK0501
32h 35min
SAS Scandinavian Airlines
$609
London Heathrow
San Francisco
Outbound
03/23/26
1 Stopover (CPH)
SK0502, SK0935
36h 15min
Return
04/20/26
1 Stopover (CPH)
SK0936, SK0501
32h 35min
SAS Scandinavian Airlines
$610
London Heathrow
San Francisco
Outbound
03/23/26
1 Stopover (CPH)
SK0500, SK0935
15h 55min
Return
04/20/26
1 Stopover (CPH)
SK0936, SK0505
15h 15min
SAS Scandinavian Airlines ?
$613
London Heathrow
San Francisco
Outbound
03/23/26
1 Stopover (CPH)
SK0500, SK0935
15h 55min
Return
04/20/26
1 Stopover (CPH)
SK0936, SK0505
15h 15min
SAS Scandinavian Airlines
$632
Prices based on recent searches, subject to last-minute changes
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Tips and tricks to help you find cheap flights from London Heathrow to San Francisco

Favorite airline: SAS
SAS is the most popular airline for flights from London Heathrow to San Francisco.
SAS
18 %
United Airlines
16 %
Lufthansa
12 %
Stopover flights are the cheapest connection
Compared to flights with a stopover, direct flights are $11.00 more expensive on this route.
non stop flight
1 stop
2 stops
11h 05min
16h 35min
23h 30min
$478
$467
$1,040
Favourite connection: via Copenhagen
23 % of booked tickets on this route are for flights with a transfer in Copenhagen.
Route
bookings
1 stopover Copenhagen
17h 10min, from $475
23 %
Direct flights
11h 05min, from $478
17 %
1 stopover Frankfurt-Main
16h 35min, from $467
16 %

Important flight information

Flight information: London Heathrow - San Francisco

Roundtrip from $590.64
Flight duration min. 11:10 / max. 11:25
Return flight duration min. 10:15/ max. 10:35
Distance 8625 km
Flights per week 47
Departure airport Airport London Heathrow (LHR)
Departure country Flights from United Kingdom
Arrival airport Airport San Francisco International Airport, CA (SFO)
Destination country Flights to United States
Alternative routes to United States
Alternative flights to San Francisco
Flight destinations with a similar price
Flight destinations with a similar price