The calculated distance (air line) between Opava and Jablonec nad Nisou is approximately 132 miles respectively 213 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 Opava and Jablonec nad Nisou has been calculated here.
Air line (approximately)
213 kilometers
115 nautical miles