Normal route from Partnun / Tilisuna side
This is the standard documented mountaineering ascent of Sulzfluh, the best-known summit route on the mountain. It is an alpine route rather than a pure hiking trail, with sections of steep rock and loose terrain. The difficulty is generally moderate, but route-finding can be important in poor visibility. Conditions on the upper mountain can vary with snow and ice lingering into the season. The route is commonly described in Swiss alpine literature as the normal way to the summit from the south side. Exact ascent and descent times vary by starting point and conditions, and I am not confident enough to state them here.
Route Outline
Partnun or Tilisuna approach
Alp / mountain path to the base of the south or southeast slopes
Climbing route on marked rock and scree terrain
Summit of Sulzfluh
Return by the ascent route