The calculated distance (air line) between Sezimovo Ústí and České Budějovice is approximately 30 miles respectively 48 kilometers.
By car or train, the actual journey to České Budějovice is certainly longer, as only the direct route (as the crow flies) between Sezimovo Ústí and České Budějovice has been calculated here.
Air line (approximately)
48 kilometers
26 nautical miles