The calculated distance (air line) between Frýdek-Místek and Znojmo is approximately 118 miles respectively 191 kilometers.
By car or train, the actual journey to Znojmo is certainly longer, as only the direct route (as the crow flies) between Frýdek-Místek and Znojmo has been calculated here.
Air line (approximately)
191 kilometers
103 nautical miles