London Hotel Guide. Marriott Hotels in Heathrow Airport, London, England

A major international flight hub, Heathrow's four terminals are connected to central London by train and Underground services. The Heathrow Express speeds into Paddington Station in 15 minutes. The Underground’s Piccadilly line is cheaper (but slower), stopping at stations including Earl’s Court, Green Park, Leicester Square and Kings Cross. Coaches run to destinations throughout the UK.