72625 posts
All Swiss Postal Buses are covered on the Swiss Pass although on some in the mountains you have to have an Alpine Ticket which is like a supplement in addition to the pass. You pay this directly to the driver. There are a very few bus lines that are not covered that give 50% discount with the pass.
Dick
15484 posts
That’s an excellent answer Dick, thank you.
Jooch: just in case you are only planning a few local bus trips, and no further train trips, a local bus pass could fit your plans as well. The options vary per region. The postbus counter at the rail station in Brig can provide more information.