The calculated distance (air line) between Pilar and Mariano Roque Alonso is approximately 124 miles respectively 199 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 Pilar and Mariano Roque Alonso has been calculated here.
Air line (approximately)
199 kilometers
107 nautical miles