The calculated distance (air line) between Kostelec nad Orlicí and Teplice is approximately 111 miles respectively 179 kilometers.
By car or train, the actual journey to Teplice is certainly longer, as only the direct route (as the crow flies) between Kostelec nad Orlicí and Teplice has been calculated here.
Air line (approximately)
179 kilometers
97 nautical miles