From [wiki=d0a6343a081a7335baa965ce4fd0845c]München[/wiki] there is a train every hour which takes about two hours to reach Sonthofen. Price is €23.30 (Spring 2006).
From [wiki=a330ac6c48198545d4d2f9ff2cb0fc05]Stuttgart[/wiki] there is a train every hour which takes about 2:30 hours to reach Sonthofen. Price is €28.20 (Spring 2006).
From [wiki=4b5860d2a9ea251025de8b6146180bc9]Lindau[/wiki] there is a train every hour which takes about 1:30 hours to reach Sonthofen. Price is €11.70 (Spring 2006).
From north you take the Autobahn until [wiki=34641665d0a80de02f964a3dad089652]Kempten[/wiki] and then take the B19 until you reach Sonthofen. During peak season there is often traffic jams on the B19.
From west you take the B308 to Sonthofen. This road passes the Paradies (Lookout Point) and you might need snow chains after heavy snowfall during winter (announced in traffic radio).