The calculated distance (air line) between Ivančice and Jablonec nad Nisou is approximately 124 miles respectively 200 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 Ivančice and Jablonec nad Nisou has been calculated here.
Air line (approximately)
200 kilometers
108 nautical miles