The calculated distance (air line) between Slavkov u Brna and Frýdek-Místek is approximately 76 miles respectively 122 kilometers.
By car or train, the actual journey to Frýdek-Místek is certainly longer, as only the direct route (as the crow flies) between Slavkov u Brna and Frýdek-Místek has been calculated here.
Air line (approximately)
122 kilometers
66 nautical miles