The calculated distance (air line) between Silves and São Domingos de Rana is approximately 116 miles respectively 186 kilometers.
By car or train, the actual journey to São Domingos de Rana is certainly longer, as only the direct route (as the crow flies) between Silves and São Domingos de Rana has been calculated here.
Air line (approximately)
186 kilometers
100 nautical miles