| Erkrath to Siran | 1,712.60 mi (2,756.17 km) |
| Erkrath to Sirnak | 1,967.84 mi (3,166.93 km) |
| Erkrath to Sirvan | 1,925.68 mi (3,099.09 km) |
| Erkrath to Sivas | 1,643.28 mi (2,644.60 km) |
| Erkrath to Sivasli | 1,410.70 mi (2,270.31 km) |
| Erkrath to Siverek | 1,827.02 mi (2,940.31 km) |
| Erkrath to Sivrice | 1,795.51 mi (2,889.60 km) |
| Erkrath to Sivrihisar | 1,435.35 mi (2,309.98 km) |
| Erkrath to Sogut | 1,355.71 mi (2,181.80 km) |
| Erkrath to Sogutlu | 1,327.24 mi (2,135.99 km) |
| Erkrath to Soke | 1,365.09 mi (2,196.90 km) |
| Erkrath to Solhan | 1,845.40 mi (2,969.89 km) |
| Erkrath to Soma | 1,298.34 mi (2,089.47 km) |
| Erkrath to Sorgun | 1,565.34 mi (2,519.17 km) |
| Erkrath to Suhut | 1,440.99 mi (2,319.05 km) |
