London has six major airports, the busiest being Heathrow Airport. There are several public transport routes to each airport to and from Central London, commonly via the Tube or by train. Some rail services and coaches may travel to some main airports in London from other cities in the UK, though you should always allow plenty of time between your arrival at the airport and your flight departure, particularly in case of any delays.
London City (LCY): London City Airport is the closest airport to Central London, approximately 7 miles away. To travel from the city centre to LCY, you can take the DLR Underground from Canning Town. This service runs around every 8 to 15 minutes.
London Gatwick (LGW): Located south of London, Gatwick is the second busiest airport in the UK. There are regular train services between Central London and Gatwick, including the Gatwick Express running every 30 minutes to London Victoria station.
London Heathrow (LHR): Heathrow is in the west of London and has frequently running connections to and from Central London via the Piccadilly Line. This Underground line runs at least every 10 minutes.
London Luton (LTN): Luton Airport is located in the north-west of London and has regular train and coach services, including East Midlands Railway, Thameslink and National Express, which come and go from Central London every day.
London Southend (SEN): Southend is one of London's smaller airports just east of the centre of London. To get to Southend Airport from Central London, you can take the train from Liverpool Street or Stratford.
London Stansted (STN): London Stansted is located near the M11 motorway just north-east of London. The Stansted Express rail service, the main public transport option going to and from Central London. This service runs around every 15 to 30 minutes.