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 February , March 2026

23 Feb - 18 Mar $ 511.00
LCY
London
Swiss International Air Lines
1 STOPS
SFO
San Francisco
SFO
San Francisco
Swiss International Air Lines
1 STOPS
LCY
London
Pick dates
16 Feb - 11 Mar $ 1,118.00
LCY
London
ITA Airways
1 STOPS
SFO
San Francisco
SFO
San Francisco
ITA Airways
1 STOPS
LCY
London
Pick dates
10 Feb - 04 Mar $ 1,967.00
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 Feb - 01 Mar $ 539.00
LCY
London
Swiss International Air Lines
1 STOPS
SFO
San Francisco
SFO
San Francisco
Swiss International Air Lines
1 STOPS
LCY
London
Pick dates
16 Feb - 02 Mar $ 736.00
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 Feb - 01 Mar $ 2,009.00
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

7:30 AM - 5:50 PM
French Bee
2 Stops
20h 40m
LCY - SFO
$ 595
Kiwi
Pick dates
5:45 PM - 1:15 PM
Swiss International Air Lines
1 Stops
30h 45m
LCY - SFO
$ 681
Kiwi
Pick dates
9:50 AM - 1:20 PM
United Airlines
1 Stops
14h 5m
LCY - SFO
$ 1,633
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.