The calculated distance (air line) between Sezimovo Ústí and Česká Lípa is approximately 90 miles respectively 145 kilometers.
By car or train, the actual journey to Česká Lípa is certainly longer, as only the direct route (as the crow flies) between Sezimovo Ústí and Česká Lípa has been calculated here.
Air line (approximately)
145 kilometers
78 nautical miles