WIth "cheap" I mean about 200 EUR including all extra costs. In the meantime I found the following solution: Fly Smart Award ticket to a European Destination I want to visit, not returning to my hometown (GRZ) but going to FRA or STR instead; then I will do two nested weekend roundtrips on Airrail with one night at a cheap hotel in Stuttgart and then I travel home by train! For me thats the best solution!
Anyway! Thanx for your help!
Greetings Thomas