| Pontneddfechan to Sinop | 1,921.83 mi (3,092.88 km) |
| Pontneddfechan to Siran | 2,164.14 mi (3,482.84 km) |
| Pontneddfechan to Sirnak | 2,418.68 mi (3,892.50 km) |
| Pontneddfechan to Sirvan | 2,376.81 mi (3,825.11 km) |
| Pontneddfechan to Sivas | 2,092.44 mi (3,367.46 km) |
| Pontneddfechan to Sivasli | 1,840.45 mi (2,961.92 km) |
| Pontneddfechan to Siverek | 2,275.21 mi (3,661.60 km) |
| Pontneddfechan to Sivrice | 2,244.87 mi (3,612.77 km) |
| Pontneddfechan to Sivrihisar | 1,874.46 mi (3,016.65 km) |
| Pontneddfechan to Sogut | 1,793.58 mi (2,886.48 km) |
| Pontneddfechan to Sogutlu | 1,769.18 mi (2,847.23 km) |
| Pontneddfechan to Soke | 1,782.09 mi (2,868.00 km) |
| Pontneddfechan to Solhan | 2,296.84 mi (3,696.41 km) |
| Pontneddfechan to Soma | 1,724.01 mi (2,774.53 km) |
| Pontneddfechan to Sorgun | 2,012.39 mi (3,238.63 km) |
