| Middle Valley to Sesimbra | 4,090.08 mi (6,582.35 km) |
| Middle Valley to Setubal | 4,098.28 mi (6,595.55 km) |
| Middle Valley to Sever do Vouga | 4,066.80 mi (6,544.88 km) |
| Middle Valley to Silves | 4,157.23 mi (6,690.42 km) |
| Middle Valley to Sines | 4,114.91 mi (6,622.31 km) |
| Middle Valley to Sintra | 4,066.32 mi (6,544.11 km) |
| Middle Valley to Sobrado de Paiva | 4,064.05 mi (6,540.45 km) |
| Middle Valley to Sobral de Monte Agraco | 4,072.37 mi (6,553.85 km) |
| Middle Valley to Soure | 4,071.25 mi (6,552.04 km) |
| Middle Valley to Tabua | 4,092.82 mi (6,586.76 km) |
| Middle Valley to Tavira | 4,198.97 mi (6,757.58 km) |
| Middle Valley to Tomar | 4,093.57 mi (6,587.96 km) |
| Middle Valley to Tondela | 4,086.15 mi (6,576.02 km) |
| Middle Valley to Torre de Moncorvo | 4,114.59 mi (6,621.80 km) |
| Middle Valley to Torres Novas | 4,091.30 mi (6,584.31 km) |
