The calculated distance (air line) between Pfäffikon / Pfäffikon (Dorfkern) and Neuchâtel is approximately 91 miles respectively 146 kilometers.
By car or train, the actual journey to Neuchâtel is certainly longer, as only the direct route (as the crow flies) between Pfäffikon / Pfäffikon (Dorfkern) and Neuchâtel has been calculated here.
Air line (approximately)
146 kilometers
79 nautical miles