| Cities | Distance |
|---|---|
| Ploiesti to Smolyan | 241.35 mi (388.41 km) |
| Ploiesti to Sofia | 204.90 mi (329.75 km) |
| Ploiesti to Sopot | 170.54 mi (274.46 km) |
| Ploiesti to Sozopol | 193.50 mi (311.42 km) |
| Ploiesti to Sredets | 188.45 mi (303.29 km) |
| Ploiesti to Stamboliyski | 207.84 mi (334.48 km) |
| Ploiesti to Stara Zagora | 174.27 mi (280.46 km) |
| Ploiesti to Svilengrad | 219.51 mi (353.27 km) |
| Ploiesti to Svishtov | 97.37 mi (156.69 km) |
| Ploiesti to Targovishte | 120.11 mi (193.30 km) |
| Ploiesti to Teteven | 164.91 mi (265.39 km) |
| Ploiesti to Troyan | 156.33 mi (251.58 km) |
| Ploiesti to Tryavna | 145.65 mi (234.41 km) |
| Ploiesti to Tutrakan | 68.18 mi (109.72 km) |
| Ploiesti to Varna | 151.76 mi (244.24 km) |