| Sint-Martens-Lennik to Somma Lombardo | 410.69 mi (660.94 km) |
| Sint-Martens-Lennik to Somma Vesuviana | 844.27 mi (1,358.73 km) |
| Sint-Martens-Lennik to Sommacampagna | 484.14 mi (779.14 km) |
| Sint-Martens-Lennik to Sona | 481.82 mi (775.41 km) |
| Sint-Martens-Lennik to Sondrio | 413.23 mi (665.03 km) |
| Sint-Martens-Lennik to Sora | 772.22 mi (1,242.76 km) |
| Sint-Martens-Lennik to Sorbolo | 504.17 mi (811.39 km) |
| Sint-Martens-Lennik to Soresina | 462.96 mi (745.07 km) |
| Sint-Martens-Lennik to Sorisole | 431.57 mi (694.55 km) |
| Sint-Martens-Lennik to Sorrento | 856.89 mi (1,379.02 km) |
| Sint-Martens-Lennik to Sorso | 722.87 mi (1,163.34 km) |
| Sint-Martens-Lennik to Sortino | 1,083.69 mi (1,744.03 km) |
| Sint-Martens-Lennik to Soverato Marina | 1,032.00 mi (1,660.84 km) |
| Sint-Martens-Lennik to Sovicille | 616.58 mi (992.29 km) |
| Sint-Martens-Lennik to Spello | 672.24 mi (1,081.86 km) |
