The calculated distance (air line) between Kbely and Jablonec nad Nisou is approximately 49 miles respectively 79 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 Kbely and Jablonec nad Nisou has been calculated here.
Air line (approximately)
79 kilometers
43 nautical miles