From S+U Berlin Hauptbahnhof bus to Berlin Tegel airport, fly to Copenhagen airport, then train to Copenhagen. 3hrs 36min $69. From S+U Alexanderplatz Bhf train to Berlin Schoenefeld airport, fly to Copenhagen airport, then train to Copenhagen. 3hrs 40min $51. From Berlin Gesundbrunnen train to Koebenhavn H. 6hrs 52min $115. From Berlin Alexanderplatz bus to Rostock central bus station then bus to Copenhagen central train station. 9hrs 15min $37. From S+U Alexanderplatz subway to U Kaiserdamm, walk to Berlin, ZOB am Funkturm, then bus to Kobenhavn, Ingerslevsgade, DGI - Byen. 9hrs 38min $30. From Berlin drive to Świnoujście, car ferry to Trelleborg, then drive to Copenhagen. 9hrs 22min $909.