The calculated distance (air line) between Sezimovo Ústí and Chomutov is approximately 93 miles respectively 150 kilometers.
By car or train, the actual journey to Chomutov is certainly longer, as only the direct route (as the crow flies) between Sezimovo Ústí and Chomutov has been calculated here.
Air line (approximately)
150 kilometers
81 nautical miles