The calculated distance (air line) between Benátky nad Jizerou and Olomouc is approximately 118 miles respectively 190 kilometers.
By car or train, the actual journey to Olomouc is certainly longer, as only the direct route (as the crow flies) between Benátky nad Jizerou and Olomouc has been calculated here.
Air line (approximately)
190 kilometers
103 nautical miles