The calculated distance (air line) between Monforte del Cid and Sant Joan d'Alacant is approximately 16 miles respectively 26 kilometers.
By car or train, the actual journey to Sant Joan d'Alacant is certainly longer, as only the direct route (as the crow flies) between Monforte del Cid and Sant Joan d'Alacant has been calculated here.
Air line (approximately)
26 kilometers
14 nautical miles