| Nettuno to Somma Lombardo | 352.46 mi (567.23 km) |
| Nettuno to Somma Vesuviana | 100.81 mi (162.23 km) |
| Nettuno to Sommacampagna | 286.62 mi (461.27 km) |
| Nettuno to Sona | 289.06 mi (465.20 km) |
| Nettuno to Sondrio | 353.53 mi (568.96 km) |
| Nettuno to Sora | 52.04 mi (83.75 km) |
| Nettuno to Sorbolo | 258.86 mi (416.60 km) |
| Nettuno to Soresina | 299.23 mi (481.56 km) |
| Nettuno to Sorisole | 331.24 mi (533.07 km) |
| Nettuno to Sorrento | 106.16 mi (170.85 km) |
| Nettuno to Sorso | 217.75 mi (350.43 km) |
| Nettuno to Sortino | 322.88 mi (519.62 km) |
| Nettuno to Soverato Marina | 281.26 mi (452.64 km) |
| Nettuno to Sovicille | 145.28 mi (233.80 km) |
| Nettuno to Spello | 105.17 mi (169.26 km) |
