The calculated distance (air line) between São Domingos de Rana and Portimão is approximately 117 miles respectively 188 kilometers.
By car or train, the actual journey to Portimão is certainly longer, as only the direct route (as the crow flies) between São Domingos de Rana and Portimão has been calculated here.
Air line (approximately)
188 kilometers
101 nautical miles