| Birstonas to Santiago do Cacem | 1,908.91 mi (3,072.09 km) |
| Birstonas to Santo Andre | 1,909.05 mi (3,072.32 km) |
| Birstonas to Santo Tirso | 1,737.33 mi (2,795.96 km) |
| Birstonas to Sao Bras de Alportel | 1,923.86 mi (3,096.15 km) |
| Birstonas to Sao Felix da Marinha | 1,757.40 mi (2,828.26 km) |
| Birstonas to Sao Joao da Madeira | 1,758.82 mi (2,830.55 km) |
| Birstonas to Sao Joao de Ver | 1,758.47 mi (2,829.98 km) |
| Birstonas to Sao Mamede de Infesta | 1,748.68 mi (2,814.22 km) |
| Birstonas to Sao Pedro do Sul | 1,749.93 mi (2,816.24 km) |
| Birstonas to Satao | 1,738.20 mi (2,797.36 km) |
| Birstonas to Seia | 1,752.09 mi (2,819.72 km) |
| Birstonas to Senhora da Hora | 1,751.27 mi (2,818.40 km) |
| Birstonas to Serpa | 1,872.36 mi (3,013.27 km) |
| Birstonas to Serta | 1,797.35 mi (2,892.55 km) |
| Birstonas to Sesimbra | 1,902.02 mi (3,061.01 km) |
