London Heathrow
San Francisco
Nonstop
11h 05mSan Francisco
London Heathrow
Nonstop
10h 30mBritish Airways
London Heathrow
San Francisco
1 stop
15h 49mSan Francisco
London Heathrow
1 stop
13h 40mFinnair
London Heathrow
San Francisco
Nonstop
11h 05mSan Francisco
London Heathrow
Nonstop
10h 30mAmerican Airlines
London Heathrow
Burbank Bob Hope
1 stop
14h 10mBurbank Bob Hope
London Heathrow
1 stop
15h 50mMultiple Airlines
London Heathrow
San Francisco
Nonstop
11h 05mSan Francisco
London Heathrow
1 stop
15h 54mBritish Airways
London Heathrow
San Francisco
1 stop
16h 16mSan Francisco
London Heathrow
1 stop
15h 54mBritish Airways
London Heathrow
Los Angeles
Nonstop
11h 15mBritish Airways
London Heathrow
San Francisco
Nonstop
11h 05mIberia
London Heathrow
San Francisco
1 stop
14h 30mAir France
London Heathrow
San Francisco
Nonstop
11h 05mFinnair
London Heathrow
San Francisco
Nonstop
11h 05mAmerican Airlines
London Heathrow
Los Angeles
1 stop
16h 47mBritish Airways
January
£4,133
February
£4,125
March
£4,318
April
£4,695
May
£4,056
June
£4,315
July
£1,212
August
£4,179
September
£3,932
October
£4,784
November
£3,974
December
£5,922
July is currently the cheapest month to fly first class to California. At this moment in time December is the most expensive month. These prices are determined by multiple factors and booking in advance can help keep costs down if your schedule is not as flexible.