The calculated distance (air line) between Kutná Hora and Jablonec nad Nisou is approximately 54 miles respectively 87 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 Kutná Hora and Jablonec nad Nisou has been calculated here.
Air line (approximately)
87 kilometers
47 nautical miles