| Duffel to Somma Lombardo | 420.43 mi (676.62 km) |
| Duffel to Somma Vesuviana | 850.49 mi (1,368.73 km) |
| Duffel to Sommacampagna | 489.52 mi (787.80 km) |
| Duffel to Sona | 487.16 mi (784.00 km) |
| Duffel to Sondrio | 419.03 mi (674.37 km) |
| Duffel to Sora | 778.62 mi (1,253.07 km) |
| Duffel to Sorbolo | 511.47 mi (823.13 km) |
| Duffel to Soresina | 470.71 mi (757.54 km) |
| Duffel to Sorisole | 438.88 mi (706.30 km) |
| Duffel to Sorrento | 863.45 mi (1,389.59 km) |
| Duffel to Sorso | 737.73 mi (1,187.26 km) |
| Duffel to Sortino | 1,092.36 mi (1,757.98 km) |
| Duffel to Soverato Marina | 1,037.74 mi (1,670.08 km) |
| Duffel to Sovicille | 624.81 mi (1,005.53 km) |
| Duffel to Spello | 678.44 mi (1,091.84 km) |
