| Solothurn to Siran | 1,638.28 mi (2,636.56 km) |
| Solothurn to Sirnak | 1,885.65 mi (3,034.66 km) |
| Solothurn to Sirvan | 1,845.92 mi (2,970.72 km) |
| Solothurn to Sivas | 1,554.47 mi (2,501.67 km) |
| Solothurn to Sivasli | 1,267.67 mi (2,040.11 km) |
| Solothurn to Siverek | 1,731.64 mi (2,786.81 km) |
| Solothurn to Sivrice | 1,706.09 mi (2,745.68 km) |
| Solothurn to Sivrihisar | 1,313.42 mi (2,113.74 km) |
| Solothurn to Sogut | 1,231.45 mi (1,981.83 km) |
| Solothurn to Sogutlu | 1,214.72 mi (1,954.91 km) |
| Solothurn to Soke | 1,200.26 mi (1,931.63 km) |
| Solothurn to Solhan | 1,768.84 mi (2,846.67 km) |
| Solothurn to Soma | 1,148.48 mi (1,848.30 km) |
| Solothurn to Sorgun | 1,467.73 mi (2,362.08 km) |
| Solothurn to Suhut | 1,303.88 mi (2,098.39 km) |
