The calculated distance (air line) between Olomouc and Ústí nad Labem is approximately 160 miles respectively 258 kilometers.
By car or train, the actual journey to Ústí nad Labem is certainly longer, as only the direct route (as the crow flies) between Olomouc and Ústí nad Labem has been calculated here.
Air line (approximately)
258 kilometers
139 nautical miles