I am planning to arrive to Berlin to Schoenefeld Airport and need a hint on how to get to central Berlin. I am going to stay at Kubrat Hotel near Check Point Charlie.
The Kubrat Hotel (Checkpoint Charlie) at the Leipziger Straße 21: You use the Airport Express RE7 or RB14 in direction Hauptbahnhof which is coming each hour. You leave the train at Friedrichstraße after 20-25 min and enter the U6 in direction Alt-Mariendorf. After two stations you leave the U6 at Stadtmitte. You go in direction Leipziger Straße, after 60m you are directly in vicinity of the Hotel.
Google Maps route planner has you covered. The journey will take around 45 minutes.
Take the RE7 Airport Express and do not take the S-Bahn. It stops very often it will take ages.