The calculated distance (air line) between Jirkov and Ústí nad Labem is approximately 28 miles respectively 45 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 Jirkov and Ústí nad Labem has been calculated here.
Air line (approximately)
45 kilometers
24 nautical miles