| Idrija to Solofra | 359.53 mi (578.61 km) |
| Idrija to Somma Lombardo | 257.32 mi (414.12 km) |
| Idrija to Somma Vesuviana | 355.04 mi (571.38 km) |
| Idrija to Sommacampagna | 158.87 mi (255.67 km) |
| Idrija to Sona | 159.02 mi (255.91 km) |
| Idrija to Sondrio | 199.55 mi (321.14 km) |
| Idrija to Sora | 296.83 mi (477.69 km) |
| Idrija to Sorbolo | 191.03 mi (307.43 km) |
| Idrija to Soresina | 207.41 mi (333.79 km) |
| Idrija to Sorisole | 211.06 mi (339.66 km) |
| Idrija to Sorrento | 371.76 mi (598.29 km) |
| Idrija to Sorso | 451.60 mi (726.78 km) |
| Idrija to Sortino | 612.69 mi (986.03 km) |
| Idrija to Soverato Marina | 521.78 mi (839.72 km) |
| Idrija to Sovicille | 232.70 mi (374.50 km) |
