| Sierre to Santarem | 953.96 mi (1,535.25 km) |
| Sierre to Santiago do Cacem | 1,006.27 mi (1,619.44 km) |
| Sierre to Santo Andre | 1,006.90 mi (1,620.44 km) |
| Sierre to Santo Tirso | 866.35 mi (1,394.26 km) |
| Sierre to Sao Bras de Alportel | 1,012.65 mi (1,629.70 km) |
| Sierre to Sao Felix da Marinha | 883.54 mi (1,421.92 km) |
| Sierre to Sao Joao da Madeira | 882.21 mi (1,419.78 km) |
| Sierre to Sao Joao de Ver | 883.04 mi (1,421.11 km) |
| Sierre to Sao Mamede de Infesta | 876.86 mi (1,411.18 km) |
| Sierre to Sao Pedro do Sul | 868.48 mi (1,397.69 km) |
| Sierre to Satao | 854.22 mi (1,374.74 km) |
| Sierre to Seia | 864.39 mi (1,391.11 km) |
| Sierre to Senhora da Hora | 879.65 mi (1,415.66 km) |
| Sierre to Serpa | 964.05 mi (1,551.49 km) |
| Sierre to Serta | 905.82 mi (1,457.78 km) |
