The calculated distance (air line) between Bohumín and Jablonec nad Nisou is approximately 152 miles respectively 244 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 Bohumín and Jablonec nad Nisou has been calculated here.
Air line (approximately)
244 kilometers
132 nautical miles