The calculated distance (air line) between Frýdlant nad Ostravicí and Prostějov is approximately 57 miles respectively 91 kilometers.
By car or train, the actual journey to Prostějov is certainly longer, as only the direct route (as the crow flies) between Frýdlant nad Ostravicí and Prostějov has been calculated here.
Air line (approximately)
91 kilometers
49 nautical miles