The calculated distance (air line) between Santa Rita and Mariano Roque Alonso is approximately 158 miles respectively 254 kilometers.
By car or train, the actual journey to Mariano Roque Alonso is certainly longer, as only the direct route (as the crow flies) between Santa Rita and Mariano Roque Alonso has been calculated here.
Air line (approximately)
254 kilometers
137 nautical miles