The calculated distance (air line) between Sastre and San Nicolás de los Arroyos is approximately 144 miles respectively 231 kilometers.
By car or train, the actual journey to San Nicolás de los Arroyos is certainly longer, as only the direct route (as the crow flies) between Sastre and San Nicolás de los Arroyos has been calculated here.
Air line (approximately)
231 kilometers
125 nautical miles