The calculated distance (air line) between Kaplice and Ústí nad Labem is approximately 134 miles respectively 216 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 Kaplice and Ústí nad Labem has been calculated here.
Air line (approximately)
216 kilometers
117 nautical miles