| Clay to Sesimbra | 4,209.92 mi (6,775.21 km) |
| Clay to Setubal | 4,218.26 mi (6,788.64 km) |
| Clay to Sever do Vouga | 4,188.98 mi (6,741.51 km) |
| Clay to Silves | 4,276.04 mi (6,881.62 km) |
| Clay to Sines | 4,234.34 mi (6,814.51 km) |
| Clay to Sintra | 4,186.41 mi (6,737.38 km) |
| Clay to Sobrado de Paiva | 4,186.51 mi (6,737.54 km) |
| Clay to Sobral de Monte Agraco | 4,192.75 mi (6,747.57 km) |
| Clay to Soure | 4,192.74 mi (6,747.56 km) |
| Clay to Tabua | 4,214.75 mi (6,782.99 km) |
| Clay to Tavira | 4,317.97 mi (6,949.10 km) |
| Clay to Tomar | 4,214.71 mi (6,782.92 km) |
| Clay to Tondela | 4,208.21 mi (6,772.45 km) |
| Clay to Torre de Moncorvo | 4,237.49 mi (6,819.57 km) |
| Clay to Torres Novas | 4,212.28 mi (6,779.01 km) |
