| Opoczno to Solofra | 773.13 mi (1,244.23 km) |
| Opoczno to Somma Lombardo | 658.93 mi (1,060.44 km) |
| Opoczno to Somma Vesuviana | 777.37 mi (1,251.05 km) |
| Opoczno to Sommacampagna | 597.48 mi (961.56 km) |
| Opoczno to Sona | 596.35 mi (959.74 km) |
| Opoczno to Sondrio | 594.42 mi (956.63 km) |
| Opoczno to Sora | 738.17 mi (1,187.97 km) |
| Opoczno to Sorbolo | 638.96 mi (1,028.31 km) |
| Opoczno to Soresina | 636.58 mi (1,024.48 km) |
| Opoczno to Sorisole | 621.99 mi (1,000.99 km) |
| Opoczno to Sorrento | 794.44 mi (1,278.52 km) |
| Opoczno to Sorso | 919.11 mi (1,479.16 km) |
| Opoczno to Sortino | 1,015.00 mi (1,633.48 km) |
| Opoczno to Soverato Marina | 895.54 mi (1,441.23 km) |
| Opoczno to Sovicille | 700.67 mi (1,127.62 km) |
