Earn point on your loyalty program!arrow arc left

Cheap flights from London (LCY) to San Francisco (SFO)

Know your dates, get live prices in seconds
airplane logo

pin logo

calendar
Departure
calendar backward
Return
airplane logo
1 Adults (11+)
0 Children (2~11)
0 Infants (0~2)
Save up to 31%
Book Flight + Hotel at the same time

How to find the cheapest flight from London (LCY) to San Francisco (SFO)

How to find the cheapest flight from London (LCY) to San Francisco (SFO)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from London (LCY) to San Francisco (SFO)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from London (LCY) to San Francisco (SFO)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.

Cheap flights from London to San Francisco in April , May 2026

29 Apr - 07 May $ 803.00
LCY
London
Swiss International Air Lines
1 STOPS
SFO
San Francisco
SFO
San Francisco
Swiss International Air Lines
1 STOPS
LCY
London
Pick dates
15 Apr - 07 May $ 1,550.00
LCY
London
Swiss International Air Lines
1 STOPS
SFO
San Francisco
SFO
San Francisco
Swiss International Air Lines
1 STOPS
LCY
London
Pick dates
12 Apr - 07 May $ 1,554.00
LCY
London
Swiss International Air Lines
1 STOPS
SFO
San Francisco
SFO
San Francisco
Swiss International Air Lines
1 STOPS
LCY
London
Pick dates

Last minute flights from London to San Francisco

20 Apr - 01 May $ 831.00
LCY
London
Swiss International Air Lines
1 STOPS
SFO
San Francisco
SFO
San Francisco
Swiss International Air Lines
1 STOPS
LCY
London
Pick dates
13 Apr - 01 May $ 1,030.00
LCY
London
Swiss International Air Lines
1 STOPS
SFO
San Francisco
SFO
San Francisco
Swiss International Air Lines
1 STOPS
LCY
London
Pick dates
10 Apr - 01 May $ 1,260.00
LCY
London
Swiss International Air Lines
1 STOPS
SFO
San Francisco
SFO
San Francisco
Swiss International Air Lines
1 STOPS
LCY
London
Pick dates

One-way flights to San Francisco from London

5:10 PM - 1:20 PM
TAP Portugal
3 Stops
32h 45m
LCY - SFO
$ 599
Kiwi
Pick dates
8:15 PM - 9:50 AM
KLM Royal Dutch Airlines
1 Stops
23h 30m
LCY - SFO
$ 1,037
Kiwi
Pick dates
9:15 AM - 12:55 PM
Lufthansa
1 Stops
14h 10m
LCY - SFO
$ 1,252
Kiwi
Pick dates

How to find the cheapest flight from London (LCY) to San Francisco (SFO)

Related info for your journey
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from London (LCY) to San Francisco (SFO)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from London (LCY) to San Francisco (SFO)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.