The calculated distance (air line) between Castelo Branco and Santo António dos Olivais is approximately 56 miles respectively 89 kilometers.
By car or train, the actual journey to Santo António dos Olivais is certainly longer, as only the direct route (as the crow flies) between Castelo Branco and Santo António dos Olivais has been calculated here.
Air line (approximately)
89 kilometers
48 nautical miles