Istanbul Airport (ISL)
Airport in Istanbul, Turkey
The airport was planned as the largest in the world with a 150 million annual passenger capacity in its last planned expansion stage while remaining upgradable to handle 200 million annual passengers if required in the future. It is the third international airport to be built in Istanbul after Atatürk Airport and Sabiha Gökçen Airport and is planned to become the main international airport serving Istanbul. Atatürk Airport will be closed down for scheduled passenger flights once the new airport is fully operational, and its IATA code IST will be transferred to the new airport.