London has five major airports that are operational and cater to commercial flights: Heathrow, Gatwick, Stansted, Luton, and City Airport.
Heathrow Airport
Heathrow, one of the busiest airports globally, offers extensive international connections. Opened in 1946, it has grown to become a major hub with multiple terminals. Reaching central London from Heathrow is easy using the Heathrow Express train (fastest option), the Underground (less expensive), or taxis/private cars. The journey time depends on the mode of transportation you choose.
Gatwick Airport
Gatwick Airport, another significant international airport, provides a wide range of flights. With two terminals, the airport offers various amenities for travellers. You can access central London from Gatwick via Gatwick Express train, the Southern and Thameslink train services, and taxis/private hire vehicles. Depending on your destination in London, the journey time may vary greatly.
Luton Airport
Luton Airport is a smaller airport compared to Heathrow and Gatwick and predominantly serves budget airlines and various European routes. There is a fast train that goes to central London, but also the option of taking the bus, which is a cheaper alternative. However, taxis and private vehicles are also readily available.