London Heathrow
Los Angeles
1 stop
36h 20mLOT
London City
Los Angeles
1 stop
31h 50mMultiple Airlines
London Heathrow
San Francisco
1 stop
26h 30mTAP AIR PORTUGAL
London Gatwick
San Francisco
3 stops
35h 15mLufthansa
London Heathrow
Los Angeles
Nonstop
11h 05mAustrian Airlines
London Gatwick
Los Angeles
2 stops
18h 44mIcelandair
London Heathrow
Los Angeles
1 stop
16h 05mLos Angeles
London Heathrow
1 stop
27h 15mLOT
London Gatwick
Los Angeles
1 stop
32h 15mLos Angeles
London Gatwick
1 stop
33h 30mTurkish Airlines
London Heathrow
San Francisco
Nonstop
11h 05mSan Francisco
London Heathrow
Nonstop
10h 30mFinnair
London Heathrow
San Francisco
1 stop
16h 43mSan Francisco
London Heathrow
1 stop
14h 40mAir Canada
London Heathrow
San Francisco
Nonstop
11h 05mSan Francisco
London Heathrow
1 stop
14h 23mBritish Airways
London Heathrow
Los Angeles
Nonstop
11h 10mLos Angeles
London Heathrow
Nonstop
10h 30mMultiple Airlines
January
£781
February
£1,821
March
£946
April
£611
May
£870
June
£1,127
July
£1,536
August
£2,301
September
£725
October
£1,414
November
£2,016
December
£806
April is currently the cheapest month to fly business class to California. At this moment in time August 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.