The calculated distance (air line) between Sokolov and Jablonec nad Nisou is approximately 118 miles respectively 189 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 Sokolov and Jablonec nad Nisou has been calculated here.
Air line (approximately)
189 kilometers
102 nautical miles