| Pirot to Siran | 876.34 mi (1,410.33 km) |
| Pirot to Sirnak | 1,113.37 mi (1,791.80 km) |
| Pirot to Sirvan | 1,075.76 mi (1,731.27 km) |
| Pirot to Sivas | 782.29 mi (1,258.97 km) |
| Pirot to Sivasli | 491.42 mi (790.86 km) |
| Pirot to Siverek | 953.44 mi (1,534.41 km) |
| Pirot to Sivrice | 931.32 mi (1,498.82 km) |
| Pirot to Sivrihisar | 530.03 mi (853.01 km) |
| Pirot to Sogut | 448.06 mi (721.08 km) |
| Pirot to Sogutlu | 434.00 mi (698.45 km) |
| Pirot to Soke | 451.06 mi (725.92 km) |
| Pirot to Solhan | 1,002.26 mi (1,612.98 km) |
| Pirot to Soma | 378.37 mi (608.93 km) |
| Pirot to Sorgun | 691.18 mi (1,112.35 km) |
| Pirot to Suhut | 524.08 mi (843.42 km) |
