What? Of course there is low cost train travel. It is garbage, but it exists. https://www.flixtrain.com/ https://www.flixtrain.com/ However, if you want to go

What? Of course there is low cost train travel. It is garbage, but it exists. https://www.flixtrain.com/ https://www.flixtrain.com/ However, if you want to go Hamburg-Munich on an ICE (better than flying imo IF (!) everything works) and you do not have purchased a "BahnCard" and you do not book far in advance then it is very expensive. 2nd class ICE ride on that track in 2 weeks is 153€, flex, one way. For that money you get a return flight. If you can be 100% sure to make it to one exact train you can go for ca. 50€. [1] Risk of failing to catch that train is pretty high though. [1] https://reiseauskunft.bahn.de/bin/query.exe/dn?revia=yes&existOptimizePrice=1&country=DEU&dbkanal_007=L01_S01_D001_KIN0001_qf-bahn-svb-kl2_lz03&start=1&protocol=https%3A&REQ0JourneyStopsS0A=1&S=Hamburg+Hbf&REQ0JourneyStopsSID=A%3D1%40O%3DHamburg+Hbf%40X%3D10006909%40Y%3D53552733%40U%3D80%40L%3D008002549%40B%3D1%40p%3D1558994455%40&Z=M%C3%BCnchen+Hbf&REQ0JourneyStopsZID=&date=Di%2C+18.06.19&time=17%3A04&timesel=depart&returnDate=&returnTime=&returnTimesel=depart&optimize=0&auskunft_travelers_number=1&tariffTravellerType.1=E&tariffTravellerReductionClass.1=0&tariffClass=2&rtMode=DB-HYBRID&externRequest=yes&HWAI=JS%21js%3Dyes%21ajax%3Dyes%21 https://reiseauskunft.bahn.de/bin/query.exe/dn?revia=yes&exi...