Airport codes are typically three-letter codes used to identify airports. These codes are usually assigned by IATA (the International Air Transport Association). The codes are usually used in flight schedules, reservations, and ticketing to identify the airport. For example, the airport code for John F. Kennedy International Airport in New York is JFK, while the airport code for San Francisco International Airport is SFO. Some examples of other well-known airport codes include LAX (Los Angeles International Airport), LHR (London Heathrow Airport), and CDG (Paris Charles de Gaulle Airport).
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