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City to IATA Code Converter

Choose a direction and enter a city name or IATA code.

How to use

  1. Enter your values in the fields above.
  2. Press Calculate to see your result instantly.
  3. Use the Share button to copy a link to your result.

About this calculator

Every major airport (and many cities as a whole) has a unique three-letter IATA code assigned by the International Air Transport Association — LHR for London Heathrow, JFK for New York, NRT for Tokyo Narita — used on tickets, baggage tags, and flight-booking systems worldwide instead of full airport names. Some codes represent a specific airport while metro-area codes can represent a whole city served by multiple airports.

This converter looks up a city's primary IATA code, or resolves a code back to its city, across roughly 50 of the busiest hubs globally. It's a quick reference for travelers booking flights, travel agents, and anyone working with airline data or booking systems, where recognizing or entering the right three-letter code — rather than a full airport name — is often required.

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