Route 1:
München-Salzburg-Villach-Ljubljana-Zagreb-Split-Omis-Mimice
Route 2:
Passau-Linz-Graz-Maribor-Zagreb-Split-Omis-Mimice
Mimice itself does not have an airport, but Split International Airport is just three quarters of an hour away.
Split is a city with very good bus connections from Germany. The bus station is located near the city center and is not far from the train station. From Split there are bus connections to Omis / Mimice. You can find the departure and arrival times of the buses on the website www.buscroatia.com.