The calculated distance (air line) between Pfäffikon / Pfäffikon (Dorfkern) and Sitten is approximately 104 miles respectively 167 kilometers.
By car or train, the actual journey to Sitten is certainly longer, as only the direct route (as the crow flies) between Pfäffikon / Pfäffikon (Dorfkern) and Sitten has been calculated here.
Air line (approximately)
167 kilometers
90 nautical miles