With space limited in the London Docklands area, and comparatively low passenger volumes, London City Airport is small compared with several other airports serving London, such as Heathrow, Gatwick, Stansted, Southend and Luton.

London City Airport (LCY) is not considered a "big" airport in terms of physical size or passenger volume when compared to giants like Heathrow or Gatwick. However, it is highly significant due to its specialized role and prime location in the Royal Docks, just miles from the financial heart of the city. It features a single runway that is relatively short, which limits the types of aircraft that can land there; only specific models with "steep approach" certifications, like the Embraer 190 or Airbus A220, are permitted. Because of these constraints, it primarily serves short-haul business routes to Europe and domestic UK destinations. While it may feel small and intimate—boasting one of the fastest "curb-to-gate" times in the world—it is a powerhouse for business travel. It handles millions of passengers annually but maintains the atmosphere of a regional hub rather than a sprawling international terminal, making it a favorite for those who value speed and convenience over scale.