The calculated distance (air line) between Kutná Hora and Ústí nad Labem is approximately 73 miles respectively 118 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 Kutná Hora and Ústí nad Labem has been calculated here.
Air line (approximately)
118 kilometers
64 nautical miles