Multiple choice general knowledge what is the airport code of - Kolkata (Calcutta), West Bengal CCU KOL WB CLT Reveal answer Fill a bubble to check yourself A Correct answer Explanation CCU is the IATA code for Netaji Subhas Chandra Bose International Airport in Kolkata. It derives from 'CalCUtta', the city's former name. KOL, WB (state code), and CLT are incorrect.