The calculated distance (air line) between Zürich (Kreis 7) / Hottingen and Sitten is approximately 97 miles respectively 157 kilometers.
By car or train, the actual journey to Sitten is certainly longer, as only the direct route (as the crow flies) between Zürich (Kreis 7) / Hottingen and Sitten has been calculated here.
Air line (approximately)
157 kilometers
85 nautical miles