The calculated distance (air line) between San Nicolás de los Agustinos and Aguascalientes is approximately 141 miles respectively 227 kilometers.
By car or train, the actual journey to Aguascalientes is certainly longer, as only the direct route (as the crow flies) between San Nicolás de los Agustinos and Aguascalientes has been calculated here.
Air line (approximately)
227 kilometers
123 nautical miles