Cologne-Bonn Airport (German: Flughafen Köln/Bonn Konrad Adenauer) (IATA: CGN, ICAO: EDDK) is the international airport of Germany's fourth-largest city, Cologne, and also serves Bonn, the former capital of West Germany. With approximately 12.4 million passengers passing through it in 2017, it is the seventh-largest passenger airport in Germany and the third-largest in terms of cargo operations. By traffic units, which combine cargo and passengers, the airport is in fifth place in Germany. As of March 2015, Cologne-Bonn Airport had services to 115 passenger destinations in 35 countries. The airport is named after Cologne native Konrad Adenauer, the first post-war Chancellor of West Germany.