London Heathrow
Las Vegas Harry Reid Intl
1 stop
14h 49mLas Vegas Harry Reid Intl
London Heathrow
1 stop
13h 25mFinnair
London Heathrow
San Francisco
Nonstop
11h 20mSan Francisco
London Heathrow
1 stop
14h 03mAmerican Airlines
London Heathrow
Las Vegas Harry Reid Intl
1 stop
14h 53mLas Vegas Harry Reid Intl
London Heathrow
1 stop
21h 45mMultiple Airlines
London Heathrow
Las Vegas Harry Reid Intl
1 stop
18h 43mLas Vegas Harry Reid Intl
London Heathrow
1 stop
21h 45mBritish Airways
London Heathrow
San Francisco
1 stop
17h 37mSan Francisco
London Heathrow
1 stop
14h 23mAmerican Airlines
London Heathrow
Las Vegas Harry Reid Intl
1 stop
16h 02mLas Vegas Harry Reid Intl
London Heathrow
1 stop
13h 33mFinnair
London Heathrow
Los Angeles
Nonstop
11h 18mFinnair
London Heathrow
Los Angeles
Nonstop
11h 15mBritish Airways
January
£4,133
February
£4,124
March
£7,856
April
£4,695
May
£4,599
June
£4,445
July
£6,910
August
£5,153
September
£6,071
October
£4,784
November
£3,974
December
£5,922
November 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.