| Portes-les-Valence to Setubal | 833.17 mi (1,340.86 km) |
| Portes-les-Valence to Sever do Vouga | 728.62 mi (1,172.60 km) |
| Portes-les-Valence to Silves | 872.01 mi (1,403.36 km) |
| Portes-les-Valence to Sines | 855.77 mi (1,377.22 km) |
| Portes-les-Valence to Sintra | 844.04 mi (1,358.34 km) |
| Portes-les-Valence to Sobrado de Paiva | 714.60 mi (1,150.04 km) |
| Portes-les-Valence to Sobral de Monte Agraco | 825.04 mi (1,327.77 km) |
| Portes-les-Valence to Soure | 763.72 mi (1,229.09 km) |
| Portes-les-Valence to Tabua | 725.39 mi (1,167.41 km) |
| Portes-les-Valence to Tavira | 843.26 mi (1,357.09 km) |
| Portes-les-Valence to Tomar | 770.12 mi (1,239.39 km) |
| Portes-les-Valence to Tondela | 722.59 mi (1,162.89 km) |
| Portes-les-Valence to Torre de Moncorvo | 656.64 mi (1,056.77 km) |
| Portes-les-Valence to Torres Novas | 780.33 mi (1,255.82 km) |
| Portes-les-Valence to Torres Vedras | 827.66 mi (1,331.99 km) |
