The calculated distance (air line) between Lugano and Zürich (Kreis 12) is approximately 98 miles respectively 158 kilometers.
By car or train, the actual journey to Zürich (Kreis 12) is certainly longer, as only the direct route (as the crow flies) between Lugano and Zürich (Kreis 12) has been calculated here.
Air line (approximately)
158 kilometers
85 nautical miles