| Plonsk to Skarzysko-Kamienna | 107.23 mi (172.57 km) |
| Plonsk to Skawina | 184.63 mi (297.13 km) |
| Plonsk to Skierniewice | 47.10 mi (75.80 km) |
| Plonsk to Skoczow | 207.52 mi (333.98 km) |
| Plonsk to Skwierzyna | 204.83 mi (329.64 km) |
| Plonsk to Slawno | 193.44 mi (311.32 km) |
| Plonsk to Slubice | 245.41 mi (394.96 km) |
| Plonsk to Slupca | 108.40 mi (174.45 km) |
| Plonsk to Slupsk | 187.01 mi (300.97 km) |
| Plonsk to Sochaczew | 28.35 mi (45.63 km) |
| Plonsk to Sokolka | 139.94 mi (225.22 km) |
| Plonsk to Sokolow Podlaski | 80.12 mi (128.94 km) |
| Plonsk to Solec Kujawski | 94.92 mi (152.77 km) |
| Plonsk to Sopot | 146.00 mi (234.96 km) |
| Plonsk to Sosnowiec | 171.05 mi (275.27 km) |
