BusBahnBim is the Austria-wide timetable information service for all public transport connections. With the help of this route planner, you can calculate all journeys from A to B.
Regardless of whether it is from/to an address, stop or an important point. The online Route planner "BusBahnBim" is also available as a free app for smartphones. It is available from Google Play and from the App Store.
A responsive browser version for all other operating systems is available here.