The calculated distance (air line) between Kojetín and Jablonec nad Nisou is approximately 134 miles respectively 216 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 Kojetín and Jablonec nad Nisou has been calculated here.
Air line (approximately)
216 kilometers
116 nautical miles