| Herdecke to Siran | 1,693.89 mi (2,726.05 km) |
| Herdecke to Sirnak | 1,949.42 mi (3,137.29 km) |
| Herdecke to Sirvan | 1,907.14 mi (3,069.25 km) |
| Herdecke to Sivas | 1,625.59 mi (2,616.13 km) |
| Herdecke to Sivasli | 1,397.52 mi (2,249.10 km) |
| Herdecke to Siverek | 1,809.61 mi (2,912.28 km) |
| Herdecke to Sivrice | 1,777.72 mi (2,860.96 km) |
| Herdecke to Sivrihisar | 1,420.37 mi (2,285.87 km) |
| Herdecke to Sogut | 1,341.04 mi (2,158.19 km) |
| Herdecke to Sogutlu | 1,311.70 mi (2,110.97 km) |
| Herdecke to Soke | 1,353.99 mi (2,179.04 km) |
| Herdecke to Solhan | 1,826.72 mi (2,939.82 km) |
| Herdecke to Soma | 1,285.96 mi (2,069.55 km) |
| Herdecke to Sorgun | 1,548.35 mi (2,491.82 km) |
| Herdecke to Suhut | 1,427.25 mi (2,296.94 km) |
