| Port-de-Bouc to Settimo Torinese | 182.06 mi (292.99 km) |
| Port-de-Bouc to Seveso | 256.24 mi (412.37 km) |
| Port-de-Bouc to Sezze | 432.13 mi (695.45 km) |
| Port-de-Bouc to Siano | 528.65 mi (850.78 km) |
| Port-de-Bouc to Siena | 318.60 mi (512.73 km) |
| Port-de-Bouc to Signa | 306.86 mi (493.84 km) |
| Port-de-Bouc to Silea | 391.90 mi (630.70 km) |
| Port-de-Bouc to Silvi Paese | 464.95 mi (748.27 km) |
| Port-de-Bouc to Sinalunga | 339.25 mi (545.97 km) |
| Port-de-Bouc to Siniscola | 310.88 mi (500.31 km) |
| Port-de-Bouc to Sinnai | 357.83 mi (575.88 km) |
| Port-de-Bouc to Siracusa | 696.73 mi (1,121.28 km) |
| Port-de-Bouc to Solaro | 252.99 mi (407.15 km) |
| Port-de-Bouc to Soliera | 308.64 mi (496.71 km) |
| Port-de-Bouc to Solofra | 535.32 mi (861.51 km) |
