{"id":3812,"date":"2026-07-22T13:54:15","date_gmt":"2026-07-22T12:54:15","guid":{"rendered":"https:\/\/www.flyness.aero\/?p=3812"},"modified":"2026-07-22T13:54:15","modified_gmt":"2026-07-22T12:54:15","slug":"airport-codes-iata-icao","status":"publish","type":"post","link":"https:\/\/www.flyness.aero\/en\/news-en\/airport-codes-iata-icao\/","title":{"rendered":"Airport codes: what IATA and ICAO codes mean"},"content":{"rendered":"

Airport codes are three or four-letter codes used to uniquely identify airports, cities and airport locations around the world. The best-known are IATA codes<\/strong>, made up of three letters and used on tickets, boarding passes, baggage tags and booking systems. Alongside these are ICAO codes<\/strong>, made up of four letters and mainly used in flight operations, flight plans and air traffic control.<\/p>\n

So, when you read FCO, MXP, CDG, LHR or NRT, you are not looking at a random abbreviation: you are reading a code designed to make communication in air transport clearer and more standardised.<\/p>\n

Behind a simple airport code<\/strong>, there may be geography, history, former names, cities that have changed, airports that no longer exist and even a few linguistic curiosities. Some airport abbreviations<\/strong> are immediately understandable, while others preserve historical traces or seem far from intuitive until you discover where they come from.<\/p>\n

With this context in mind, let\u2019s explore what<\/strong> airport codes<\/strong> really mean<\/strong>, who assigns them, the difference between an IATA code and an ICAO code<\/strong>, and why understanding these codes is important, especially when planning a tailor-made charter flight.<\/p>\n<\/div><\/div><\/div>

What are airport codes?<\/h2><\/div>
\"Viaggiatore<\/span><\/div>

Airport codes are identification codes used to recognise airports and locations within the international air transport system. They make communication faster, more precise and more standardised<\/strong> between airlines, airports, booking systems, logistics operators, air traffic controllers and passengers.<\/p>\n

Think of a route shown as MXP-FCO: in just six letters, two airports, two cities, a route and an entire flight operation are identified.<\/p>\n

Airport codes<\/strong> are useful because they prevent ambiguity. Many cities around the world have similar names, some locations have more than one airport and, in other cases, a single airport may serve an entire metropolitan area. Without shared codes, the risk of confusion would be very high.<\/p>\n<\/div>\n

\n\n\n\n\n\n\n\n\n\n
Element<\/th>\nFunction<\/th>\n<\/tr>\n<\/thead>\n
Airport name<\/td>\nIdentifies the airport in a descriptive way<\/td>\n<\/tr>\n
IATA code<\/td>\nIdentifies the airport or city in commercial systems<\/td>\n<\/tr>\n
ICAO code<\/td>\nIdentifies the airport in aeronautical operations<\/td>\n<\/tr>\n
City served<\/td>\nIndicates the relevant geographical area<\/td>\n<\/tr>\n
Country<\/td>\nPlaces the airport within the international system<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

What is interesting is that not all airport abbreviations convey the same type of information. Some derive directly from the city\u2019s name, others from the official airport\u2019s name, while others preserve historical traces of names that are no longer in use.<\/p>\n<\/div><\/div><\/div>

IATA codes: the airport codes you see on tickets and baggage tags<\/h2><\/div>
\"Carta<\/span><\/div>

IATA codes are probably the most familiar airport codes<\/strong> for travellers. They consist of three letters and are assigned by the International Air Transport Association, the international association representing the air transport industry. IATA also provides official tools to search for the codes assigned to airports and airlines.<\/p>\n

These are the codes you find:<\/p>\n