| Boscoreale to Settimo Torinese | 454.03 mi (730.69 km) |
| Boscoreale to Seveso | 431.09 mi (693.77 km) |
| Boscoreale to Sezze | 89.45 mi (143.96 km) |
| Boscoreale to Siano | 11.32 mi (18.21 km) |
| Boscoreale to Siena | 239.21 mi (384.97 km) |
| Boscoreale to Signa | 270.80 mi (435.81 km) |
| Boscoreale to Silea | 355.19 mi (571.62 km) |
| Boscoreale to Silvi Paese | 124.66 mi (200.62 km) |
| Boscoreale to Sinalunga | 220.42 mi (354.74 km) |
| Boscoreale to Siniscola | 251.18 mi (404.24 km) |
| Boscoreale to Sinnai | 297.02 mi (478.01 km) |
| Boscoreale to Siracusa | 259.10 mi (416.98 km) |
| Boscoreale to Solaro | 431.29 mi (694.09 km) |
| Boscoreale to Soliera | 328.39 mi (528.50 km) |
| Boscoreale to Solofra | 19.72 mi (31.74 km) |
