The calculated distance (air line) between Jablonec nad Nisou and Olomouc is approximately 121 miles respectively 194 kilometers.
By car or train, the actual journey to Olomouc is certainly longer, as only the direct route (as the crow flies) between Jablonec nad Nisou and Olomouc has been calculated here.
Air line (approximately)
194 kilometers
105 nautical miles