The calculated distance (air line) between Orlová and Jablonec nad Nisou is approximately 156 miles respectively 251 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 Orlová and Jablonec nad Nisou has been calculated here.
Air line (approximately)
251 kilometers
136 nautical miles