| Bosilegrad to Siran | 877.00 mi (1,411.39 km) |
| Bosilegrad to Sirnak | 1,109.14 mi (1,784.99 km) |
| Bosilegrad to Sirvan | 1,072.55 mi (1,726.10 km) |
| Bosilegrad to Sivas | 779.36 mi (1,254.26 km) |
| Bosilegrad to Sivasli | 469.38 mi (755.40 km) |
| Bosilegrad to Siverek | 946.48 mi (1,523.22 km) |
| Bosilegrad to Sivrice | 926.46 mi (1,491.00 km) |
| Bosilegrad to Sivrihisar | 517.36 mi (832.61 km) |
| Bosilegrad to Sogut | 435.34 mi (700.62 km) |
| Bosilegrad to Sogutlu | 427.59 mi (688.15 km) |
| Bosilegrad to Soke | 419.05 mi (674.39 km) |
| Bosilegrad to Solhan | 1,000.69 mi (1,610.46 km) |
| Bosilegrad to Soma | 352.64 mi (567.52 km) |
| Bosilegrad to Sorgun | 686.35 mi (1,104.58 km) |
| Bosilegrad to Suhut | 504.66 mi (812.17 km) |
