| Herk-de-Stad to Somma Lombardo | 397.75 mi (640.12 km) |
| Herk-de-Stad to Somma Vesuviana | 824.72 mi (1,327.25 km) |
| Herk-de-Stad to Sommacampagna | 463.50 mi (745.94 km) |
| Herk-de-Stad to Sona | 461.13 mi (742.11 km) |
| Herk-de-Stad to Sondrio | 393.41 mi (633.13 km) |
| Herk-de-Stad to Sora | 753.00 mi (1,211.84 km) |
| Herk-de-Stad to Sorbolo | 486.71 mi (783.28 km) |
| Herk-de-Stad to Soresina | 446.35 mi (718.33 km) |
| Herk-de-Stad to Sorisole | 414.24 mi (666.66 km) |
| Herk-de-Stad to Sorrento | 837.89 mi (1,348.45 km) |
| Herk-de-Stad to Sorso | 719.50 mi (1,157.93 km) |
| Herk-de-Stad to Sortino | 1,068.18 mi (1,719.08 km) |
| Herk-de-Stad to Soverato Marina | 1,011.59 mi (1,628.00 km) |
| Herk-de-Stad to Sovicille | 600.58 mi (966.54 km) |
| Herk-de-Stad to Spello | 652.76 mi (1,050.51 km) |
