| Ostwald to Somma Lombardo | 203.50 mi (327.50 km) |
| Ostwald to Somma Vesuviana | 624.30 mi (1,004.71 km) |
| Ostwald to Sommacampagna | 263.13 mi (423.47 km) |
| Ostwald to Sona | 260.76 mi (419.65 km) |
| Ostwald to Sondrio | 193.01 mi (310.61 km) |
| Ostwald to Sora | 552.57 mi (889.28 km) |
| Ostwald to Sorbolo | 286.87 mi (461.67 km) |
| Ostwald to Soresina | 247.18 mi (397.80 km) |
| Ostwald to Sorisole | 214.75 mi (345.61 km) |
| Ostwald to Sorrento | 637.46 mi (1,025.90 km) |
| Ostwald to Sorso | 537.33 mi (864.76 km) |
| Ostwald to Sortino | 868.59 mi (1,397.86 km) |
| Ostwald to Soverato Marina | 811.32 mi (1,305.69 km) |
| Ostwald to Sovicille | 401.26 mi (645.76 km) |
| Ostwald to Spello | 452.33 mi (727.95 km) |
