| Plon to Smolyan | 1,088.03 mi (1,751.02 km) |
| Plon to Sofia | 985.37 mi (1,585.80 km) |
| Plon to Sopot | 1,027.79 mi (1,654.07 km) |
| Plon to Sozopol | 1,129.75 mi (1,818.15 km) |
| Plon to Sredets | 1,117.77 mi (1,798.87 km) |
| Plon to Stamboliyski | 1,051.38 mi (1,692.04 km) |
| Plon to Stara Zagora | 1,066.26 mi (1,715.97 km) |
| Plon to Svilengrad | 1,120.16 mi (1,802.72 km) |
| Plon to Svishtov | 991.44 mi (1,595.57 km) |
| Plon to Targovishte | 1,049.49 mi (1,689.00 km) |
| Plon to Teteven | 998.77 mi (1,607.36 km) |
| Plon to Troyan | 1,013.56 mi (1,631.17 km) |
| Plon to Tryavna | 1,037.47 mi (1,669.65 km) |
| Plon to Tutrakan | 1,007.86 mi (1,622.00 km) |
| Plon to Varna | 1,093.82 mi (1,760.33 km) |
