The calculated distance (air line) between Chlumec nad Cidlinou and Mladá Boleslav is approximately 30 miles respectively 49 kilometers.
By car or train, the actual journey to Mladá Boleslav is certainly longer, as only the direct route (as the crow flies) between Chlumec nad Cidlinou and Mladá Boleslav has been calculated here.
Air line (approximately)
49 kilometers
26 nautical miles