The calculated distance (air line) between Mengibar and Jerez de la Frontera is approximately 156 miles respectively 250 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 Mengibar and Jerez de la Frontera has been calculated here.
Air line (approximately)
250 kilometers
135 nautical miles