Istanbul Atatürk Airport (IATA: IST) is the main international airport serving Istanbul, Turkey (followed by Sabiha Gökçen International Airport) and the biggest airport in Turkey by total number of passengers, destinations served and aircraft movements. Opened in 1924 and located in Yeşilköy, on the European side of the city, it is 24 km (15 mi) west of the city centre and functions as the main hub for Turkish Airlines.
In 1980, the airport was renamed Atatürk International Airport in honor of Mustafa Kemal Atatürk, the founder and first president of the Republic of Turkey. It served over 51 million passengers in 2013, making it the 17th busiest airport in the world in terms of total passenger traffic and the 10th busiest in the world in terms of international passenger traffic. It was Europe's 4th busiest airport in 2014. Once the Istanbul New Airport is finished Istanbul-Atatürk Airport is planned to be closed. Wikipedia