| Sinnai to Somma Lombardo | 441.61 mi (710.70 km) |
| Sinnai to Somma Vesuviana | 297.10 mi (478.14 km) |
| Sinnai to Sommacampagna | 429.57 mi (691.33 km) |
| Sinnai to Sona | 431.66 mi (694.69 km) |
| Sinnai to Sondrio | 475.67 mi (765.52 km) |
| Sinnai to Sora | 285.55 mi (459.55 km) |
| Sinnai to Sorbolo | 388.31 mi (624.92 km) |
| Sinnai to Soresina | 414.79 mi (667.54 km) |
| Sinnai to Sorisole | 445.21 mi (716.49 km) |
| Sinnai to Sorrento | 288.66 mi (464.55 km) |
| Sinnai to Sorso | 108.51 mi (174.64 km) |
| Sinnai to Sortino | 349.04 mi (561.73 km) |
| Sinnai to Soverato Marina | 396.74 mi (638.49 km) |
| Sinnai to Sovicille | 294.52 mi (473.98 km) |
| Sinnai to Spello | 312.10 mi (502.28 km) |
