| Cities | Distance |
|---|
| Plonsk to Smolyan | 789.64 mi (1,270.80 km) |
| Plonsk to Sofia | 699.73 mi (1,126.11 km) |
| Plonsk to Sopot | 718.77 mi (1,156.74 km) |
| Plonsk to Sozopol | 783.15 mi (1,260.36 km) |
| Plonsk to Sredets | 777.68 mi (1,251.56 km) |
| Plonsk to Stamboliyski | 750.68 mi (1,208.11 km) |
| Plonsk to Stara Zagora | 745.84 mi (1,200.32 km) |
| Plonsk to Svilengrad | 798.27 mi (1,284.69 km) |
| Plonsk to Svishtov | 663.36 mi (1,067.58 km) |
| Plonsk to Targovishte | 708.35 mi (1,139.98 km) |
| Plonsk to Teteven | 694.88 mi (1,118.30 km) |
| Plonsk to Troyan | 702.76 mi (1,130.98 km) |
| Plonsk to Tryavna | 714.98 mi (1,150.64 km) |
| Plonsk to Tutrakan | 657.93 mi (1,058.84 km) |
| Plonsk to Varna | 737.28 mi (1,186.54 km) |
