| Saint-Sebastien-sur-Loire to Santiago do Cacem | 732.25 mi (1,178.45 km) |
| Saint-Sebastien-sur-Loire to Santo Andre | 731.48 mi (1,177.20 km) |
| Saint-Sebastien-sur-Loire to Santo Tirso | 532.02 mi (856.20 km) |
| Saint-Sebastien-sur-Loire to Sao Bras de Alportel | 767.28 mi (1,234.82 km) |
| Saint-Sebastien-sur-Loire to Sao Felix da Marinha | 553.36 mi (890.55 km) |
| Saint-Sebastien-sur-Loire to Sao Joao da Madeira | 556.77 mi (896.03 km) |
| Saint-Sebastien-sur-Loire to Sao Joao de Ver | 555.53 mi (894.04 km) |
| Saint-Sebastien-sur-Loire to Sao Mamede de Infesta | 543.54 mi (874.74 km) |
| Saint-Sebastien-sur-Loire to Sao Pedro do Sul | 552.42 mi (889.04 km) |
| Saint-Sebastien-sur-Loire to Satao | 543.81 mi (875.18 km) |
| Saint-Sebastien-sur-Loire to Seia | 561.21 mi (903.18 km) |
| Saint-Sebastien-sur-Loire to Senhora da Hora | 545.93 mi (878.59 km) |
| Saint-Sebastien-sur-Loire to Serpa | 710.71 mi (1,143.78 km) |
| Saint-Sebastien-sur-Loire to Serta | 608.87 mi (979.88 km) |
| Saint-Sebastien-sur-Loire to Sesimbra | 716.81 mi (1,153.60 km) |
