The calculated distance (air line) between Nogueira da Regedoura and Barreiro is approximately 164 miles respectively 264 kilometers.
By car or train, the actual journey to Barreiro is certainly longer, as only the direct route (as the crow flies) between Nogueira da Regedoura and Barreiro has been calculated here.
Air line (approximately)
264 kilometers
142 nautical miles