| Boo to Santarem | 1,818.67 mi (2,926.86 km) |
| Boo to Santiago do Cacem | 1,891.29 mi (3,043.74 km) |
| Boo to Santo Andre | 1,890.67 mi (3,042.74 km) |
| Boo to Santo Tirso | 1,690.13 mi (2,720.00 km) |
| Boo to Sao Bras de Alportel | 1,921.39 mi (3,092.18 km) |
| Boo to Sao Felix da Marinha | 1,711.86 mi (2,754.97 km) |
| Boo to Sao Joao da Madeira | 1,715.93 mi (2,761.52 km) |
| Boo to Sao Joao de Ver | 1,714.42 mi (2,759.09 km) |
| Boo to Sao Mamede de Infesta | 1,701.63 mi (2,738.52 km) |
| Boo to Sao Pedro do Sul | 1,712.48 mi (2,755.96 km) |
| Boo to Satao | 1,704.06 mi (2,742.43 km) |
| Boo to Seia | 1,721.40 mi (2,770.32 km) |
| Boo to Senhora da Hora | 1,703.91 mi (2,742.17 km) |
| Boo to Serpa | 1,865.83 mi (3,002.76 km) |
| Boo to Serta | 1,768.99 mi (2,846.92 km) |
