| Otopeni to Solofra | 624.29 mi (1,004.70 km) |
| Otopeni to Somma Lombardo | 848.83 mi (1,366.07 km) |
| Otopeni to Somma Vesuviana | 642.17 mi (1,033.48 km) |
| Otopeni to Sommacampagna | 745.11 mi (1,199.14 km) |
| Otopeni to Sona | 745.89 mi (1,200.39 km) |
| Otopeni to Sondrio | 792.98 mi (1,276.19 km) |
| Otopeni to Sora | 656.95 mi (1,057.26 km) |
| Otopeni to Sorbolo | 766.31 mi (1,233.25 km) |
| Otopeni to Soresina | 793.52 mi (1,277.05 km) |
| Otopeni to Sorisole | 802.66 mi (1,291.76 km) |
| Otopeni to Sorrento | 652.98 mi (1,050.87 km) |
| Otopeni to Sorso | 923.58 mi (1,486.36 km) |
| Otopeni to Sortino | 768.73 mi (1,237.15 km) |
| Otopeni to Soverato Marina | 636.53 mi (1,024.40 km) |
| Otopeni to Sovicille | 742.57 mi (1,195.04 km) |
