The calculated distance (air line) between Villajoyosa and Sant Joan d'Alacant is approximately 13 miles respectively 21 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 Villajoyosa and Sant Joan d'Alacant has been calculated here.
Air line (approximately)
21 kilometers
11 nautical miles