Airports
Kings Cross St Pancras is the easiest part of Central London to get access to from any airport.
Heathrow simply take the Piccadilly line on the underground direct. No changing, 55 minutes.
Heathrow Express - Arrive to London Paddington in 15 minutes even faster.
Gatwick and Luton are served with the Thameslink Railway. Direct less than 60 minutes.
Stansted - use the Stansted Express to Liverpool Street Station, 60 minutes or the National Express bus service which is cheaper