The calculated distance (air line) between Brandýs nad Labem-Stará Boleslav and Chomutov is approximately 58 miles respectively 94 kilometers.
By car or train, the actual journey to Chomutov is certainly longer, as only the direct route (as the crow flies) between Brandýs nad Labem-Stará Boleslav and Chomutov has been calculated here.
Air line (approximately)
94 kilometers
50 nautical miles