| Ustron to Siran | 1,185.72 mi (1,908.24 km) |
| Ustron to Sirnak | 1,442.31 mi (2,321.18 km) |
| Ustron to Sirvan | 1,399.49 mi (2,252.27 km) |
| Ustron to Sivas | 1,123.20 mi (1,807.61 km) |
| Ustron to Sivasli | 943.22 mi (1,517.97 km) |
| Ustron to Siverek | 1,308.49 mi (2,105.82 km) |
| Ustron to Sivrice | 1,274.25 mi (2,050.70 km) |
| Ustron to Sivrihisar | 943.77 mi (1,518.86 km) |
| Ustron to Sogut | 869.34 mi (1,399.07 km) |
| Ustron to Sogutlu | 830.55 mi (1,336.64 km) |
| Ustron to Soke | 930.28 mi (1,497.15 km) |
| Ustron to Solhan | 1,318.52 mi (2,121.96 km) |
| Ustron to Soma | 845.84 mi (1,361.24 km) |
| Ustron to Sorgun | 1,051.34 mi (1,691.98 km) |
| Ustron to Suhut | 965.18 mi (1,553.30 km) |
