The calculated distance (air line) between Brandýs nad Labem-Stará Boleslav and Opava is approximately 145 miles respectively 233 kilometers.
By car or train, the actual journey to Opava is certainly longer, as only the direct route (as the crow flies) between Brandýs nad Labem-Stará Boleslav and Opava has been calculated here.
Air line (approximately)
233 kilometers
126 nautical miles