The calculated distance (air line) between Mariano Roque Alonso and Itauguá is approximately 17 miles respectively 27 kilometers.
By car or train, the actual journey to Itauguá is certainly longer, as only the direct route (as the crow flies) between Mariano Roque Alonso and Itauguá has been calculated here.
Air line (approximately)
27 kilometers
15 nautical miles