London Heathrow
San Francisco
1 stop
32h 05mTAP AIR PORTUGAL
London City
San Francisco
2 stops
50h 05mMultiple Airlines
London City
Los Angeles
2 stops
27h 55mLOT
London Heathrow
San Francisco
Nonstop
11h 05mFinnair
London Heathrow
Los Angeles
1 stop
18h 55mTurkish Airlines
London Heathrow
San Francisco
1 stop
15h 38mBritish Airways
London Heathrow
San Francisco
1 stop
27h 05mSan Francisco
London Heathrow
1 stop
30h 40mTAP AIR PORTUGAL
London Gatwick
Los Angeles
1 stop
27h 40mLos Angeles
London Gatwick
1 stop
30h 25mTurkish Airlines
London Heathrow
San Francisco
Nonstop
11h 05mSan Francisco
London Heathrow
Nonstop
10h 30mMultiple Airlines
London Heathrow
San Francisco
1 stop
15h 20mSan Francisco
London Heathrow
Nonstop
10h 30mBritish Airways
London Heathrow
Los Angeles
Nonstop
11h 18mLos Angeles
London Heathrow
Nonstop
10h 30mFinnair
London Heathrow
San Francisco
2 stops
17h 52mSan Francisco
London Heathrow
2 stops
17h 55mIcelandair
January
£1,740
February
£1,763
March
£1,428
April
£1,805
May
£1,906
June
£2,390
July
£2,802
August
£2,474
September
£2,356
October
£2,021
November
£1,962
December
£1,929
March is currently the cheapest month to fly business class to California. At this moment in time July 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.