The calculated distance (air line) between Šternberk and Jablonec nad Nisou is approximately 116 miles respectively 187 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 Šternberk and Jablonec nad Nisou has been calculated here.
Air line (approximately)
187 kilometers
101 nautical miles