London is one of the easiest cities to travel to. Whether you are coming from the US or Oz, there is a connecting flight available. 

London Airports include:

London Heathrow - 20 minute direct train into central London (Paddington)

London Gatwick - 25 minutes train into central London (London Victoria through to and accross most major london stations)

London Luton - 25 minutes direct train into central London (Kings Cross St Pancreas)

London Stansted - 45 minutes direct train into central London (London Liverpool Street)

Happy traveling!