The calculated distance (air line) between Mattenbach (Kreis 7) / Deutweg and Lugano is approximately 103 miles respectively 166 kilometers.
By car or train, the actual journey to Lugano is certainly longer, as only the direct route (as the crow flies) between Mattenbach (Kreis 7) / Deutweg and Lugano has been calculated here.
Air line (approximately)
166 kilometers
90 nautical miles