The calculated distance (air line) between Basse-Nendaz and Schaffhausen is approximately 121 miles respectively 195 kilometers.
By car or train, the actual journey to Schaffhausen is certainly longer, as only the direct route (as the crow flies) between Basse-Nendaz and Schaffhausen has been calculated here.
Air line (approximately)
195 kilometers
105 nautical miles