How to travel with bus from Vienna to Plitvice lakes, as there is no direct buses you first have to take the bus from Vienna to Zagreb, timetable for this bus you can see below, once you arrive at the bus station in Zagreb, you have to change to a bus from Zagreb to Plitvice lakes, departures times you can see here. The end to end travel time for the 550 bus trip from Vienna to National park Plitvice lakes should be around 7-8 hours. From Zagreb to Plitvice the bus passes by cities like Slun, Rastoke, Rakovica and Grabovac, if you ask the driver in do time you should also be able to get of the bus at those places to.