The calculated distance (air line) between Guarda and São Domingos de Rana is approximately 168 miles respectively 271 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 Guarda and São Domingos de Rana has been calculated here.
Air line (approximately)
271 kilometers
146 nautical miles