| Plonsk to Siran | 1,232.57 mi (1,983.63 km) |
| Plonsk to Sirnak | 1,488.69 mi (2,395.82 km) |
| Plonsk to Sirvan | 1,444.66 mi (2,324.96 km) |
| Plonsk to Sivas | 1,188.10 mi (1,912.07 km) |
| Plonsk to Sivasli | 1,074.14 mi (1,728.66 km) |
| Plonsk to Siverek | 1,372.63 mi (2,209.04 km) |
| Plonsk to Sivrice | 1,333.52 mi (2,146.10 km) |
| Plonsk to Sivrihisar | 1,053.60 mi (1,695.60 km) |
| Plonsk to Sogut | 986.99 mi (1,588.40 km) |
| Plonsk to Sogutlu | 939.08 mi (1,511.31 km) |
| Plonsk to Soke | 1,082.45 mi (1,742.03 km) |
| Plonsk to Solhan | 1,362.94 mi (2,193.44 km) |
| Plonsk to Soma | 990.56 mi (1,594.15 km) |
| Plonsk to Sorgun | 1,129.18 mi (1,817.24 km) |
| Plonsk to Suhut | 1,088.82 mi (1,752.28 km) |
