The calculated distance (air line) between Altdorf and Zürich (Kreis 3) is approximately 34 miles respectively 54 kilometers.
By car or train, the actual journey to Zürich (Kreis 3) is certainly longer, as only the direct route (as the crow flies) between Altdorf and Zürich (Kreis 3) has been calculated here.
Air line (approximately)
54 kilometers
29 nautical miles