The Airport Express train (FEX) is the fastest and cheapest public transportation to Flughafen Berlin-Brandenburg Willy Brandt (BER) from Hauptbahnhof, Potsdamer Platz, and Südkreuz with connections from Mitte, Kurfürstendamm, Zoologischer Garten, and downtown areas of Berlin.
Map of Trains to Berlin Brandenburg Airport © VBB