October is by far the best month, wherein you can get cheapest flights for San Francisco to London. Meanwhile, October is perceived as the expensive month due to the varying factors. That’s why it’s highly advised to make advanced online flight booking to save huge amounts of money.
Disclaimer - All the mentioned fares were found within last 48 hrs. The displayed fares are based on historical data and are subject to change. The fares cannot be guaranteed at the time of booking.

San Francisco
06:55
San Francisco International Airport [SFO]
Sun , 03 May 2026

London
06:30
London Heathrow Airport [LHR]
Mon, 04 May 2026

San Francisco
19:40
San Francisco International Airport [SFO]
Mon , 04 May 2026

London
14:10
London Heathrow Airport [LHR]
Tue, 05 May 2026

San Francisco
16:30
San Francisco International Airport [SFO]
Mon , 04 May 2026

London
13:20
London Heathrow Airport [LHR]
Tue, 05 May 2026

San Francisco
19:40
San Francisco International Airport [SFO]
Sun , 03 May 2026

London
14:10
London Heathrow Airport [LHR]
Mon, 04 May 2026

San Francisco
16:30
San Francisco International Airport [SFO]
Sun , 03 May 2026

London
13:20
London Heathrow Airport [LHR]
Mon, 04 May 2026

San Francisco
23:05
San Francisco International Airport [SFO]
Sat , 18 Apr 2026

London
21:35
London Heathrow Airport [LHR]
Sun, 19 Apr 2026

San Francisco
13:20
San Francisco International Airport [SFO]
Mon , 13 Apr 2026

London
13:20
London Heathrow Airport [LHR]
Tue, 14 Apr 2026

San Francisco
10:35
San Francisco International Airport [SFO]
Mon , 04 May 2026

London
09:30
London Heathrow Airport [LHR]
Tue, 05 May 2026

San Francisco
06:55
San Francisco International Airport [SFO]
Mon , 04 May 2026

London
06:30
London Heathrow Airport [LHR]
Tue, 05 May 2026

San Francisco
16:35
San Francisco International Airport [SFO]
Mon , 04 May 2026

London
11:00
London Heathrow Airport [LHR]
Tue, 05 May 2026

San Francisco
16:35
San Francisco International Airport [SFO]
Sun , 03 May 2026

London
11:00
London Heathrow Airport [LHR]
Mon, 04 May 2026









