| Two Rivers to Sinop | 5,509.18 mi (8,866.17 km) |
| Two Rivers to Siran | 5,734.48 mi (9,228.76 km) |
| Two Rivers to Sirnak | 5,987.92 mi (9,636.62 km) |
| Two Rivers to Sirvan | 5,943.61 mi (9,565.32 km) |
| Two Rivers to Sivas | 5,693.38 mi (9,162.62 km) |
| Two Rivers to Sivasli | 5,517.14 mi (8,878.97 km) |
| Two Rivers to Siverek | 5,877.97 mi (9,459.67 km) |
| Two Rivers to Sivrice | 5,838.46 mi (9,396.10 km) |
| Two Rivers to Sivrihisar | 5,529.91 mi (8,899.53 km) |
| Two Rivers to Sogut | 5,453.54 mi (8,776.62 km) |
| Two Rivers to Sogutlu | 5,417.34 mi (8,718.37 km) |
| Two Rivers to Soke | 5,474.45 mi (8,810.28 km) |
| Two Rivers to Solhan | 5,862.35 mi (9,434.54 km) |
| Two Rivers to Soma | 5,407.17 mi (8,702.00 km) |
| Two Rivers to Sorgun | 5,631.37 mi (9,062.81 km) |
