London is served by six major airports, making it one of the world's busiest aviation hubs. London Heathrow (LHR) is the primary gateway, hosting legacy carriers like British Airways, Virgin Atlantic, and global giants like Emirates and Air India. London Gatwick (LGW) serves as a massive base for easyJet and British Airways, alongside long-haul low-cost options like Norse Atlantic. London Stansted (STN) and London Luton (LTN) are the strongholds for budget airlines Ryanair and Wizz Air. London City (LCY) focuses on business travel with British Airways and Swiss, while London Southend (SEN) offers regional routes with easyJet and various seasonal charters. In 2026, the market is highly competitive, with over 100 airlines providing direct connections to every inhabited continent.