The calculated distance (air line) between Polička and Jablonec nad Nisou is approximately 85 miles respectively 137 kilometers.
By car or train, the actual journey to Jablonec nad Nisou is certainly longer, as only the direct route (as the crow flies) between Polička and Jablonec nad Nisou has been calculated here.
Air line (approximately)
137 kilometers
74 nautical miles