| Geldern to Siran | 1,741.85 mi (2,803.24 km) |
| Geldern to Sirnak | 1,997.32 mi (3,214.38 km) |
| Geldern to Sirvan | 1,955.07 mi (3,146.38 km) |
| Geldern to Sivas | 1,673.27 mi (2,692.86 km) |
| Geldern to Sivasli | 1,442.63 mi (2,321.69 km) |
| Geldern to Siverek | 1,857.19 mi (2,988.86 km) |
| Geldern to Sivrice | 1,825.44 mi (2,937.75 km) |
| Geldern to Sivrihisar | 1,466.72 mi (2,360.47 km) |
| Geldern to Sogut | 1,387.19 mi (2,232.47 km) |
| Geldern to Sogutlu | 1,358.38 mi (2,186.10 km) |
| Geldern to Soke | 1,397.38 mi (2,248.86 km) |
| Geldern to Solhan | 1,874.68 mi (3,017.00 km) |
| Geldern to Soma | 1,330.44 mi (2,141.13 km) |
| Geldern to Sorgun | 1,595.76 mi (2,568.12 km) |
| Geldern to Suhut | 1,472.77 mi (2,370.20 km) |
