The calculated distance (air line) between San Pedro de Ycuamandiyú and Asunción is approximately 90 miles respectively 145 kilometers.
By car or train, the actual journey to Asunción is certainly longer, as only the direct route (as the crow flies) between San Pedro de Ycuamandiyú and Asunción has been calculated here.
Air line (approximately)
145 kilometers
78 nautical miles