| Demir Hisar to Smolyan | 182.94 mi (294.41 km) |
| Demir Hisar to Sofia | 149.61 mi (240.78 km) |
| Demir Hisar to Sopot | 207.31 mi (333.63 km) |
| Demir Hisar to Sozopol | 344.50 mi (554.41 km) |
| Demir Hisar to Sredets | 318.58 mi (512.70 km) |
| Demir Hisar to Stamboliyski | 183.04 mi (294.58 km) |
| Demir Hisar to Stara Zagora | 243.76 mi (392.29 km) |
| Demir Hisar to Svilengrad | 261.30 mi (420.52 km) |
| Demir Hisar to Svishtov | 268.54 mi (432.17 km) |
| Demir Hisar to Targovishte | 308.80 mi (496.96 km) |
| Demir Hisar to Teteven | 195.99 mi (315.42 km) |
| Demir Hisar to Troyan | 213.72 mi (343.95 km) |
| Demir Hisar to Tryavna | 248.04 mi (399.18 km) |
| Demir Hisar to Tutrakan | 337.42 mi (543.03 km) |
| Demir Hisar to Varna | 370.04 mi (595.52 km) |
