The calculated distance (air line) between Oliveira do Bairro and Santo António dos Olivais is approximately 21 miles respectively 34 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 Oliveira do Bairro and Santo António dos Olivais has been calculated here.
Air line (approximately)
34 kilometers
18 nautical miles