| Cities | Distance |
|---|---|
| Portici to Settimo Torinese | 446.13 mi (717.98 km) |
| Portici to Seveso | 423.71 mi (681.90 km) |
| Portici to Sezze | 81.26 mi (130.78 km) |
| Portici to Siano | 18.51 mi (29.80 km) |
| Portici to Siena | 231.56 mi (372.65 km) |
| Portici to Signa | 263.32 mi (423.77 km) |
| Portici to Silea | 349.52 mi (562.50 km) |
| Portici to Silvi Paese | 120.11 mi (193.30 km) |
| Portici to Sinalunga | 212.93 mi (342.67 km) |
| Portici to Siniscola | 243.88 mi (392.48 km) |
| Portici to Sinnai | 291.16 mi (468.58 km) |
| Portici to Siracusa | 264.07 mi (424.98 km) |
| Portici to Solaro | 423.88 mi (682.17 km) |
| Portici to Soliera | 321.36 mi (517.18 km) |
| Portici to Solofra | 26.62 mi (42.85 km) |