The calculated distance (air line) between Cervignano del Friuli and Portogruaro is approximately 24 miles respectively 39 kilometers.
By car or train, the actual journey to Portogruaro is certainly longer, as only the direct route (as the crow flies) between Cervignano del Friuli and Portogruaro has been calculated here.
Air line (approximately)
39 kilometers
21 nautical miles