| Slupca to Siran | 1,307.49 mi (2,104.21 km) |
| Slupca to Sirnak | 1,564.53 mi (2,517.87 km) |
| Slupca to Sirvan | 1,520.82 mi (2,447.53 km) |
| Slupca to Sivas | 1,256.01 mi (2,021.36 km) |
| Slupca to Sivasli | 1,110.39 mi (1,786.99 km) |
| Slupca to Siverek | 1,441.45 mi (2,319.80 km) |
| Slupca to Sivrice | 1,404.13 mi (2,259.73 km) |
| Slupca to Sivrihisar | 1,100.95 mi (1,771.81 km) |
| Slupca to Sogut | 1,030.06 mi (1,657.73 km) |
| Slupca to Sogutlu | 986.52 mi (1,587.65 km) |
| Slupca to Soke | 1,105.80 mi (1,779.62 km) |
| Slupca to Solhan | 1,439.15 mi (2,316.08 km) |
| Slupca to Soma | 1,018.37 mi (1,638.91 km) |
| Slupca to Sorgun | 1,191.56 mi (1,917.62 km) |
| Slupca to Suhut | 1,129.14 mi (1,817.17 km) |
