| Ronciglione to Setubal | 1,137.35 mi (1,830.39 km) |
| Ronciglione to Sever do Vouga | 1,067.64 mi (1,718.20 km) |
| Ronciglione to Silves | 1,149.20 mi (1,849.45 km) |
| Ronciglione to Sines | 1,149.92 mi (1,850.61 km) |
| Ronciglione to Sintra | 1,156.25 mi (1,860.81 km) |
| Ronciglione to Sobrado de Paiva | 1,058.21 mi (1,703.03 km) |
| Ronciglione to Sobral de Monte Agraco | 1,139.39 mi (1,833.67 km) |
| Ronciglione to Soure | 1,092.50 mi (1,758.21 km) |
| Ronciglione to Tabua | 1,056.29 mi (1,699.93 km) |
| Ronciglione to Tavira | 1,111.71 mi (1,789.12 km) |
| Ronciglione to Tomar | 1,089.85 mi (1,753.95 km) |
| Ronciglione to Tondela | 1,056.51 mi (1,700.29 km) |
| Ronciglione to Torre de Moncorvo | 998.10 mi (1,606.29 km) |
| Ronciglione to Torres Novas | 1,098.45 mi (1,767.79 km) |
| Ronciglione to Torres Vedras | 1,143.83 mi (1,840.81 km) |
