The calculated distance (air line) between Česká Třebová and Jablonec nad Nisou is approximately 80 miles respectively 128 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 Česká Třebová and Jablonec nad Nisou has been calculated here.
Air line (approximately)
128 kilometers
69 nautical miles