The calculated distance (air line) between Benešov and Frýdek-Místek is approximately 164 miles respectively 263 kilometers.
By car or train, the actual journey to Frýdek-Místek is certainly longer, as only the direct route (as the crow flies) between Benešov and Frýdek-Místek has been calculated here.
Air line (approximately)
263 kilometers
142 nautical miles