What is the cheapest month to fly to London?

The cheapest time of year to fly to London from San Francisco is January. The most expensive is June.

What is the cheapest day to fly to London?

The cheapest day of the week is usually Tuesday. The most expensive is usually Sunday.

San Francisco to London flights are approximately 9% more expensive in the afternoon than in the evening

TAP AIR PORTUGAL, American Airlines, and Finnair are the most popular carriers operating from San Francisco to London

Fly from San Francisco to London Stansted for the best San Francisco - London flight prices

The cheapest time to buy a flight from San Francisco to London is approximately 60 days before departure

Best price found	£203	The best flight deal from San Francisco to London found on momondo in the last 72 hours is £203
Fastest flight time	10h 15m	The fastest flight from San Francisco to London takes 10h 15m.
Direct flights	Every day	Direct flights go from San Francisco to London every day.
Airports in London	6 airports	There are 6 airports near London: London City (LCY), London Heathrow (LHR), London Luton (LTN), London Stansted (STN), London Gatwick (LGW), London Southend (SEN)