The calculated distance (air line) between Düdingen and Zürich (Kreis 7) is approximately 75 miles respectively 120 kilometers.
By car or train, the actual journey to Zürich (Kreis 7) is certainly longer, as only the direct route (as the crow flies) between Düdingen and Zürich (Kreis 7) has been calculated here.
Air line (approximately)
120 kilometers
65 nautical miles