The European Sleeper line from Brussels to Berlin is being extended further east to Dresden and Prague in March, but operators say they are keeping ticket prices the same as when the route opened in mid-2023. The aim is “to keep the night train attractive as an alternative to flying,” European Sleeper said in its announcement in January. Prices range from €19 for an Amsterdam-Berlin seat to €139 for a bed all the way from Brussels to Prague. The Brussels to Berlin sleeper train, which also stops in Rotterdam and Amsterdam, will be extended to Dresden and Prague from March 25. The connection is…