The calculated distance (air line) between Třeboň and Jablonec nad Nisou is approximately 120 miles respectively 193 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 Třeboň and Jablonec nad Nisou has been calculated here.
Air line (approximately)
193 kilometers
104 nautical miles