The calculated distance (air line) between São Brás de Alportel and Portimão is approximately 36 miles respectively 58 kilometers.
By car or train, the actual journey to Portimão is certainly longer, as only the direct route (as the crow flies) between São Brás de Alportel and Portimão has been calculated here.
Air line (approximately)
58 kilometers
31 nautical miles