What is the code for London's Stansted Airport?

The code for London's Stansted Airport is STN.  Other nearby airports are London Heathrow, located within the city limits of London, and London Gatwick Airport, located in West Sussex.

• Which airports serve the London metro area?
• What is the code for London's Gatwick Airport?
• What is the code for London's Heathrow Airport?

• Europe > Western Europe > United Kingdom > England > London

• Transport > Air > Airports