| Risca to Solofra | 1,130.22 mi (1,818.91 km) |
| Risca to Somma Lombardo | 674.89 mi (1,086.13 km) |
| Risca to Somma Vesuviana | 1,113.62 mi (1,792.20 km) |
| Risca to Sommacampagna | 766.96 mi (1,234.31 km) |
| Risca to Sona | 764.89 mi (1,230.97 km) |
| Risca to Sondrio | 696.98 mi (1,121.67 km) |
| Risca to Sora | 1,041.90 mi (1,676.78 km) |
| Risca to Sorbolo | 776.85 mi (1,250.22 km) |
| Risca to Soresina | 735.08 mi (1,183.00 km) |
| Risca to Sorisole | 707.51 mi (1,138.63 km) |
| Risca to Sorrento | 1,123.96 mi (1,808.84 km) |
| Risca to Sorso | 929.87 mi (1,496.48 km) |
| Risca to Sortino | 1,332.93 mi (2,145.14 km) |
| Risca to Soverato Marina | 1,301.30 mi (2,094.23 km) |
| Risca to Sovicille | 879.76 mi (1,415.83 km) |
