Wikipedia
Berlin-Warszawa-Express
The Berlin-Warszawa-Express (BWE) is a cross-border train service that connects Berlin and Warsaw via Frankfurt (Oder), operated jointly by Deutsche Bahn ( DB Fernverkehr) and Polish State Railways (PKP). The service, classed as EuroCity, runs four times per day in each direction, with the services given the numbers 40–47. Total journey time is 5 hours, 24 minutes.