There are twelves trasportation fleet in Torajaland. They operated from-to Toraja with all major cities in Sulawesi, especially South Sulawesi. The biggest one is Toraja- Makassar. The buses available from time to time. Most buses depart from-to Toraja at exactly on schedule time basis.
Especially for tourism, there are a special tourism buses that will proposed if you come or leaving Toraja. Usually provided by travel agents.