Austrian Airlines flies non-stop. It's only a matter of the cheaper fair class being avaliable on the day Internaut wants to travel.
Originally Posted by Track
As I read Travelocity, a Friday afternoon flight to Vienna (changing planes in Munich) and a Monday morning return would cost about $390. The train (5 hours each way) can be had for about $125 round-trip on a special fare (early purchase), but wouldn't get you back to Nuremberg on Monday in time for work, unless, of course, you start at lunchtime.