The calculated distance (air line) between Zürich (Kreis 11) / Affoltern and Lugano is approximately 100 miles respectively 160 kilometers.
By car or train, the actual journey to Lugano is certainly longer, as only the direct route (as the crow flies) between Zürich (Kreis 11) / Affoltern and Lugano has been calculated here.
Air line (approximately)
160 kilometers
86 nautical miles