The calculated distance (air line) between Monachil and Jerez de la Frontera is approximately 147 miles respectively 236 kilometers.
By car or train, the actual journey to Jerez de la Frontera is certainly longer, as only the direct route (as the crow flies) between Monachil and Jerez de la Frontera has been calculated here.
Air line (approximately)
236 kilometers
128 nautical miles