| Geilenkirchen to Siran | 1,742.18 mi (2,803.78 km) |
| Geilenkirchen to Sirnak | 1,996.94 mi (3,213.77 km) |
| Geilenkirchen to Sirvan | 1,954.98 mi (3,146.23 km) |
| Geilenkirchen to Sivas | 1,671.40 mi (2,689.85 km) |
| Geilenkirchen to Sivasli | 1,432.34 mi (2,305.13 km) |
| Geilenkirchen to Siverek | 1,854.70 mi (2,984.84 km) |
| Geilenkirchen to Sivrice | 1,823.75 mi (2,935.04 km) |
| Geilenkirchen to Sivrihisar | 1,459.61 mi (2,349.01 km) |
| Geilenkirchen to Sogut | 1,379.54 mi (2,220.16 km) |
| Geilenkirchen to Sogutlu | 1,352.36 mi (2,176.41 km) |
| Geilenkirchen to Soke | 1,383.69 mi (2,226.84 km) |
| Geilenkirchen to Solhan | 1,874.92 mi (3,017.39 km) |
| Geilenkirchen to Soma | 1,318.86 mi (2,122.50 km) |
| Geilenkirchen to Sorgun | 1,592.46 mi (2,562.82 km) |
| Geilenkirchen to Suhut | 1,463.43 mi (2,355.16 km) |
