The calculated distance (air line) between Villa di Serio and Trescore Balneario is approximately 6 miles respectively 9 kilometers.
By car or train, the actual journey to Trescore Balneario is certainly longer, as only the direct route (as the crow flies) between Villa di Serio and Trescore Balneario has been calculated here.
Air line (approximately)
9 kilometers
5 nautical miles