| Ploiesti to Sierpc | 619.45 mi (996.91 km) |
| Ploiesti to Skarzysko-Kamienna | 487.29 mi (784.22 km) |
| Ploiesti to Skawina | 452.40 mi (728.07 km) |
| Ploiesti to Skierniewice | 554.60 mi (892.54 km) |
| Ploiesti to Skoczow | 476.37 mi (766.65 km) |
| Ploiesti to Skwierzyna | 712.45 mi (1,146.58 km) |
| Ploiesti to Slawno | 771.99 mi (1,242.40 km) |
| Ploiesti to Slubice | 730.19 mi (1,175.12 km) |
| Ploiesti to Slupca | 629.46 mi (1,013.02 km) |
| Ploiesti to Slupsk | 769.72 mi (1,238.74 km) |
| Ploiesti to Sochaczew | 568.66 mi (915.17 km) |
| Ploiesti to Sokolka | 595.36 mi (958.14 km) |
| Ploiesti to Sokolow Podlaski | 543.15 mi (874.12 km) |
| Ploiesti to Solec Kujawski | 663.28 mi (1,067.44 km) |
| Ploiesti to Sopot | 735.71 mi (1,184.02 km) |
