The calculated distance (air line) between Kostelec nad Orlicí and Chomutov is approximately 126 miles respectively 202 kilometers.
By car or train, the actual journey to Chomutov is certainly longer, as only the direct route (as the crow flies) between Kostelec nad Orlicí and Chomutov has been calculated here.
Air line (approximately)
202 kilometers
109 nautical miles