| Omegna to Somma Lombardo | 19.51 mi (31.40 km) |
| Omegna to Somma Vesuviana | 459.42 mi (739.37 km) |
| Omegna to Sommacampagna | 122.55 mi (197.23 km) |
| Omegna to Sona | 121.14 mi (194.95 km) |
| Omegna to Sondrio | 73.03 mi (117.52 km) |
| Omegna to Sora | 387.35 mi (623.38 km) |
| Omegna to Sorbolo | 122.09 mi (196.48 km) |
| Omegna to Soresina | 81.16 mi (130.62 km) |
| Omegna to Sorisole | 60.96 mi (98.10 km) |
| Omegna to Sorrento | 470.62 mi (757.39 km) |
| Omegna to Sorso | 351.08 mi (565.02 km) |
| Omegna to Sortino | 692.07 mi (1,113.78 km) |
| Omegna to Soverato Marina | 647.67 mi (1,042.32 km) |
| Omegna to Sovicille | 226.88 mi (365.13 km) |
| Omegna to Spello | 289.98 mi (466.67 km) |
