| Sinnai to Noventa Vicentina | 429.99 mi (692.01 km) |
| Sinnai to Novi di Modena | 395.95 mi (637.21 km) |
| Sinnai to Novi Ligure | 377.62 mi (607.72 km) |
| Sinnai to Nuoro | 70.41 mi (113.31 km) |
| Sinnai to Occhiobello | 406.87 mi (654.79 km) |
| Sinnai to Oderzo | 477.79 mi (768.93 km) |
| Sinnai to Oggiono | 447.84 mi (720.72 km) |
| Sinnai to Olbia | 112.62 mi (181.25 km) |
| Sinnai to Oleggio | 436.07 mi (701.79 km) |
| Sinnai to Olgiate Comasco | 447.93 mi (720.88 km) |
| Sinnai to Olgiate Olona | 437.71 mi (704.43 km) |
| Sinnai to Omegna | 456.12 mi (734.05 km) |
| Sinnai to Opera | 420.14 mi (676.14 km) |
| Sinnai to Oppeano | 426.52 mi (686.42 km) |
| Sinnai to Orbassano | 403.26 mi (648.99 km) |
