The calculated distance (air line) between Jilemnice and Jablonec nad Nisou is approximately 17 miles respectively 27 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 Jilemnice and Jablonec nad Nisou has been calculated here.
Air line (approximately)
27 kilometers
15 nautical miles