The calculated distance (air line) between Napajedla and Ústí nad Labem is approximately 186 miles respectively 299 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 Napajedla and Ústí nad Labem has been calculated here.
Air line (approximately)
299 kilometers
161 nautical miles