The calculated distance (air line) between Tišnov and Mladá Boleslav is approximately 100 miles respectively 161 kilometers.
By car or train, the actual journey to Mladá Boleslav is certainly longer, as only the direct route (as the crow flies) between Tišnov and Mladá Boleslav has been calculated here.
Air line (approximately)
161 kilometers
87 nautical miles