FlixBus operates a bus from Munich to Braunau am Inn 5 times a week. Tickets cost $7 - $13 and the journey takes 2 h 10 min. Alternatively, German Railways (DB) operates a train from Munich to Braunau am Inn hourly. Tickets cost $23 - $35 and the journey takes 1 h 1 min. German Railways (DB) also services this route hourly.
From Munich, Munich central bus station bus to Braunau. 2 h 10 min 10€. From München Ost train to Mühldorf(Oberbay) then train to Simbach(Inn). 2 h 13 min 31€. From Munich drive to Braunau am Inn. 1 h 24 min 16€.