The calculated distance (air line) between Nuevo Arraiján and Alcalde Díaz is approximately 18 miles respectively 28 kilometers.
By car or train, the actual journey to Alcalde Díaz is certainly longer, as only the direct route (as the crow flies) between Nuevo Arraiján and Alcalde Díaz has been calculated here.
Air line (approximately)
28 kilometers
15 nautical miles