The calculated distance (air line) between São Brás de Alportel and Barreiro is approximately 123 miles respectively 197 kilometers.
By car or train, the actual journey to Barreiro is certainly longer, as only the direct route (as the crow flies) between São Brás de Alportel and Barreiro has been calculated here.
Air line (approximately)
197 kilometers
107 nautical miles