The calculated distance (air line) between Dačice and Ústí nad Labem is approximately 126 miles respectively 202 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 Dačice and Ústí nad Labem has been calculated here.
Air line (approximately)
202 kilometers
109 nautical miles