| Grefrath to Somma Lombardo | 405.18 mi (652.07 km) |
| Grefrath to Somma Vesuviana | 819.28 mi (1,318.50 km) |
| Grefrath to Sommacampagna | 459.21 mi (739.03 km) |
| Grefrath to Sona | 456.78 mi (735.12 km) |
| Grefrath to Sondrio | 391.39 mi (629.89 km) |
| Grefrath to Sora | 748.39 mi (1,204.42 km) |
| Grefrath to Sorbolo | 486.65 mi (783.18 km) |
| Grefrath to Soresina | 448.01 mi (721.00 km) |
| Grefrath to Sorisole | 415.40 mi (668.53 km) |
| Grefrath to Sorrento | 833.20 mi (1,340.90 km) |
| Grefrath to Sorso | 735.86 mi (1,184.26 km) |
| Grefrath to Sortino | 1,067.59 mi (1,718.11 km) |
| Grefrath to Soverato Marina | 1,004.29 mi (1,616.25 km) |
| Grefrath to Sovicille | 601.43 mi (967.90 km) |
| Grefrath to Spello | 648.35 mi (1,043.42 km) |
