| Cities | Distance |
|---|---|
| Smolyan to Siran | 758.80 mi (1,221.17 km) |
| Smolyan to Sirnak | 984.82 mi (1,584.91 km) |
| Smolyan to Sirvan | 949.28 mi (1,527.72 km) |
| Smolyan to Sivas | 657.20 mi (1,057.66 km) |
| Smolyan to Sivasli | 339.57 mi (546.48 km) |
| Smolyan to Siverek | 820.05 mi (1,319.74 km) |
| Smolyan to Sivrice | 801.88 mi (1,290.50 km) |
| Smolyan to Sivrihisar | 388.09 mi (624.56 km) |
| Smolyan to Sogut | 306.33 mi (492.99 km) |
| Smolyan to Sogutlu | 304.09 mi (489.39 km) |
| Smolyan to Soke | 301.45 mi (485.14 km) |
| Smolyan to Solhan | 879.37 mi (1,415.20 km) |
| Smolyan to Soma | 225.40 mi (362.75 km) |
| Smolyan to Sorgun | 562.55 mi (905.34 km) |
| Smolyan to Suhut | 374.09 mi (602.04 km) |