The calculated distance (air line) between Blatná and Jablonec nad Nisou is approximately 106 miles respectively 171 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 Blatná and Jablonec nad Nisou has been calculated here.
Air line (approximately)
171 kilometers
92 nautical miles