The calculated distance (air line) between Jablonec nad Nisou and Pardubice is approximately 54 miles respectively 87 kilometers.
By car or train, the actual journey to Pardubice is certainly longer, as only the direct route (as the crow flies) between Jablonec nad Nisou and Pardubice has been calculated here.
Air line (approximately)
87 kilometers
47 nautical miles