The calculated distance (air line) between Rokycany and Jablonec nad Nisou is approximately 97 miles respectively 156 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 Rokycany and Jablonec nad Nisou has been calculated here.
Air line (approximately)
156 kilometers
84 nautical miles