| Grottaferrata to Setubal | 1,157.63 mi (1,863.02 km) |
| Grottaferrata to Sever do Vouga | 1,092.40 mi (1,758.05 km) |
| Grottaferrata to Silves | 1,166.34 mi (1,877.05 km) |
| Grottaferrata to Sines | 1,168.98 mi (1,881.28 km) |
| Grottaferrata to Sintra | 1,177.38 mi (1,894.80 km) |
| Grottaferrata to Sobrado de Paiva | 1,083.58 mi (1,743.85 km) |
| Grottaferrata to Sobral de Monte Agraco | 1,160.84 mi (1,868.20 km) |
| Grottaferrata to Soure | 1,115.89 mi (1,795.86 km) |
| Grottaferrata to Tabua | 1,080.11 mi (1,738.28 km) |
| Grottaferrata to Tavira | 1,128.11 mi (1,815.52 km) |
| Grottaferrata to Tomar | 1,112.19 mi (1,789.89 km) |
| Grottaferrata to Tondela | 1,080.70 mi (1,739.22 km) |
| Grottaferrata to Torre de Moncorvo | 1,023.50 mi (1,647.16 km) |
| Grottaferrata to Torres Novas | 1,120.55 mi (1,803.36 km) |
| Grottaferrata to Torres Vedras | 1,165.48 mi (1,875.65 km) |
