The calculated distance (air line) between Nuestra Señora del Rosario de Caá Catí and Posadas is approximately 109 miles respectively 175 kilometers.
By car or train, the actual journey to Posadas is certainly longer, as only the direct route (as the crow flies) between Nuestra Señora del Rosario de Caá Catí and Posadas has been calculated here.
Air line (approximately)
175 kilometers
95 nautical miles