Cheap flights from London Heathrow Airport to San Francisco – Compare and Save

LHR — SFO
3 May — 10 May1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Heathrow to San Francisco

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to San Francisco
Explore the most affordable flight options available from Heathrow to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 April 2026.

Fri 25/906:40
LHR
-
SFO
1 stop16h 00m
Scandinavian Airlines
Sun 27/916:45
SFO
-
LHR
1 stop17h 45m
Scandinavian Airlines
Deal found 1/4£406
Tue 14/406:55
LHR
-
SFO
1 stop15h 35m
Lufthansa
Tue 21/412:50
SFO
-
LHR
Nonstop10h 35m
Lufthansa
Deal found 29/3£420
Tue 14/407:25
LHR
-
SFO
1 stop15h 05m
Multiple Airlines
Tue 26/513:35
SFO
-
LHR
1 stop14h 15m
Multiple Airlines
Deal found 29/3£426
Mon 25/506:30
LHR
-
SFO
1 stop16h 45m
Multiple Airlines
Tue 16/613:35
SFO
-
LHR
1 stop14h 15m
Multiple Airlines
Deal found 29/3£427
Mon 20/406:55
LHR
-
SFO
1 stop15h 35m
Lufthansa
Wed 29/416:35
SFO
-
LHR
Nonstop10h 35m
Lufthansa
Deal found 29/3£438
Thu 25/610:45
LHR
-
SFO
Nonstop11h 05m
British Airways
Sun 12/716:35
SFO
-
LHR
Nonstop10h 25m
British Airways
Deal found 31/3£440
Tue 14/413:00
LHR
-
SFO
Nonstop11h 10m
Lufthansa
Tue 21/416:35
SFO
-
LHR
Nonstop10h 35m
Lufthansa
Deal found 29/3£444
Mon 20/406:30
LHR
-
SFO
1 stop14h 10m
Lufthansa
Mon 4/519:30
SFO
-
LHR
Nonstop10h 40m
Lufthansa
Deal found 29/3£448
Mon 20/406:55
LHR
-
SFO
1 stop15h 35m
Lufthansa
Mon 4/516:35
SFO
-
LHR
Nonstop10h 35m
Lufthansa
Deal found 29/3£448
Thu 16/406:55
LHR
-
SFO
1 stop15h 35m
Lufthansa
Wed 22/419:30
SFO
-
LHR
Nonstop10h 40m
Lufthansa
Deal found 29/3£450
Mon 20/407:25
LHR
-
SFO
1 stop15h 05m
Lufthansa
Mon 4/519:30
SFO
-
LHR
Nonstop10h 40m
Lufthansa
Deal found 29/3£451
Mon 20/407:25
LHR
-
SFO
1 stop15h 05m
Multiple Airlines
Mon 4/519:35
SFO
-
LHR
1 stop14h 15m
Multiple Airlines
Deal found 29/3£451

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.