The calculated distance (air line) between Zürich (Kreis 4) / Aussersihl and Neuchâtel is approximately 79 miles respectively 128 kilometers.
By car or train, the actual journey to Neuchâtel is certainly longer, as only the direct route (as the crow flies) between Zürich (Kreis 4) / Aussersihl and Neuchâtel has been calculated here.
Air line (approximately)
128 kilometers
69 nautical miles