After leaving customs, follow the signs in the airport to the Sky Train. The Sky Train will take you to the station “Düsseldorf Flughafen”. From there, take a Regional Express train (in the direction of Aachen or in the direction of Koblenz) from Platform 4 to the station “Köln Messe/Deutz”, located adjacent to the exhibition centre. The trip from the airport takes about 45 minutes.http://www.koelnmesse.com/media/downloads/pdf/5anreiseundaufenthalt/e_An-Abreise_Koelnmesse.pdf
From there, take a Regional Express train (in the direction of Aachen or in the direction of Koblenz) from Platform 4 to the station “Köln Messe/Deutz”, located adjacent to the exhibition centre. The trip from the airport takes about 45 minutes.http://www.koelnmesse.com/media/downloads/pdf/5anreiseundaufenthalt/e_An-Abreise_Koelnmesse.pdf