The calculated distance (air line) between Castanheira do Ribatejo and Felgueiras is approximately 169 miles respectively 272 kilometers.
By car or train, the actual journey to Felgueiras is certainly longer, as only the direct route (as the crow flies) between Castanheira do Ribatejo and Felgueiras has been calculated here.
Air line (approximately)
272 kilometers
147 nautical miles