| Risca to Sinop | 1,899.73 mi (3,057.31 km) |
| Risca to Siran | 2,142.10 mi (3,447.37 km) |
| Risca to Sirnak | 2,396.50 mi (3,856.80 km) |
| Risca to Sirvan | 2,354.69 mi (3,789.50 km) |
| Risca to Sivas | 2,070.04 mi (3,331.41 km) |
| Risca to Sivasli | 1,817.13 mi (2,924.39 km) |
| Risca to Siverek | 2,252.70 mi (3,625.38 km) |
| Risca to Sivrice | 2,222.49 mi (3,576.75 km) |
| Risca to Sivrihisar | 1,851.42 mi (2,979.57 km) |
| Risca to Sogut | 1,770.50 mi (2,849.34 km) |
| Risca to Sogutlu | 1,746.28 mi (2,810.37 km) |
| Risca to Soke | 1,758.58 mi (2,830.16 km) |
| Risca to Solhan | 2,274.78 mi (3,660.90 km) |
| Risca to Soma | 1,700.62 mi (2,736.89 km) |
| Risca to Sorgun | 1,989.80 mi (3,202.27 km) |
