The calculated distance (air line) between San Juan Bautista and Alcalde Díaz is approximately 99 miles respectively 160 kilometers.
By car or train, the actual journey to Alcalde Díaz is certainly longer, as only the direct route (as the crow flies) between San Juan Bautista and Alcalde Díaz has been calculated here.
Air line (approximately)
160 kilometers
86 nautical miles