FlixBus operates a bus from Dornbirn to Munich once daily. Tickets cost $12 - $20 and the journey takes 2 h 50 min. Alternatively, German Railways (DB) operates a train from Dornbirn to Munich hourly. Tickets cost $25 - $31 and the journey takes 2 h 43 min.
From Dornbirn bus to Munich, Munich central bus station. 2 h 50 min 16€. From Dornbirn train to Lindau Hbf then train to München Hbf Gl.27-36. 3 h 52 min 29€. From Dornbirn drive to Munich. 1 h 55 min 25€.