The calculated distance (air line) between Blatná and Ústí nad Labem is approximately 86 miles respectively 138 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 Blatná and Ústí nad Labem has been calculated here.
Air line (approximately)
138 kilometers
74 nautical miles