The calculated distance (air line) between Benátky nad Jizerou and Jablonec nad Nisou is approximately 34 miles respectively 54 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 Benátky nad Jizerou and Jablonec nad Nisou has been calculated here.
Air line (approximately)
54 kilometers
29 nautical miles