London Heathrow
Los Angeles
1 stop
16h 03mLos Angeles
London Heathrow
1 stop
14h 10mBritish Airways
London Heathrow
San Francisco
1 stop
26h 57mSan Francisco
London Heathrow
1 stop
15h 00mFinnair
London Heathrow
San Francisco
Nonstop
11h 05mSan Francisco
London Heathrow
Nonstop
10h 30mAmerican Airlines
London Heathrow
Ontario
1 stop
15h 59mOntario
London Heathrow
1 stop
26h 41mMultiple Airlines
London Heathrow
Las Vegas Harry Reid Intl
2 stops
26h 18mLas Vegas Harry Reid Intl
London Heathrow
2 stops
17h 24mFinnair
London Heathrow
San Francisco
1 stop
15h 30mSan Francisco
London Heathrow
1 stop
13h 32mAmerican Airlines
London Heathrow
Los Angeles
1 stop
16h 49mBritish Airways
London Heathrow
San Francisco
1 stop
16h 13mFinnair
London Heathrow
Los Angeles
Nonstop
11h 18mBritish Airways
London Heathrow
Los Angeles
Nonstop
11h 18mBritish Airways
London Heathrow
Los Angeles
1 stop
15h 56mBritish Airways
London Heathrow
Los Angeles
1 stop
16h 36mBritish Airways
January
£4,133
February
£4,124
March
£7,856
April
£4,695
May
£4,599
June
£4,445
July
£6,009
August
£5,651
September
£6,120
October
£5,948
November
£5,303
December
£5,922
February is currently the cheapest month to fly first class to California. At this moment in time March 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.