Airports of London cannot be expanded due to the docks on either side. It is also the only airport serving London which does not operate at night. A light rail service from London City Airport DLR station, which adjoins the terminal building of London City Airport, links it to the financial district of the City of London at Bank and Monument stations, which offer interchanges with London Underground. Located in the London Borough of Hillingdon, Heathrow is by far the largest of London's airports and considered the main gateway into the United Kingdom for non-European visitors. Heathrow has four terminals and two parallel
Airports of London Liverpool Street station up to 8 times per hour. The journey to London takes about one hour. A number of other airports also serve the London area. The following are mainly used by general aviation flights. Airports are listed at their current borough, although the area may have been outside London at the time of construction. There were several Royal Air Force stations in London. This list excludes those that are classed as non-flying stations. Station are listed at their current borough, although the area may have been outside London at the time of construction. Due to London's high capacity,