| Idar-Oberstein to Somma Lombardo | 285.68 mi (459.75 km) |
| Idar-Oberstein to Somma Vesuviana | 701.30 mi (1,128.63 km) |
| Idar-Oberstein to Sommacampagna | 340.40 mi (547.82 km) |
| Idar-Oberstein to Sona | 337.99 mi (543.94 km) |
| Idar-Oberstein to Sondrio | 271.78 mi (437.39 km) |
| Idar-Oberstein to Sora | 630.03 mi (1,013.93 km) |
| Idar-Oberstein to Sorbolo | 366.79 mi (590.29 km) |
| Idar-Oberstein to Soresina | 327.93 mi (527.76 km) |
| Idar-Oberstein to Sorisole | 295.34 mi (475.31 km) |
| Idar-Oberstein to Sorrento | 714.92 mi (1,150.55 km) |
| Idar-Oberstein to Sorso | 618.87 mi (995.98 km) |
| Idar-Oberstein to Sortino | 948.13 mi (1,525.87 km) |
| Idar-Oberstein to Soverato Marina | 887.27 mi (1,427.92 km) |
| Idar-Oberstein to Sovicille | 481.52 mi (774.93 km) |
| Idar-Oberstein to Spello | 529.83 mi (852.68 km) |
