| Heek to Smolyan | 1,099.93 mi (1,770.17 km) |
| Heek to Sofia | 995.64 mi (1,602.33 km) |
| Heek to Sopot | 1,048.65 mi (1,687.64 km) |
| Heek to Sozopol | 1,169.00 mi (1,881.32 km) |
| Heek to Sredets | 1,153.26 mi (1,855.99 km) |
| Heek to Stamboliyski | 1,066.35 mi (1,716.12 km) |
| Heek to Stara Zagora | 1,091.86 mi (1,757.17 km) |
| Heek to Svilengrad | 1,144.29 mi (1,841.55 km) |
| Heek to Svishtov | 1,025.21 mi (1,649.92 km) |
| Heek to Targovishte | 1,088.47 mi (1,751.72 km) |
| Heek to Teteven | 1,018.26 mi (1,638.74 km) |
| Heek to Troyan | 1,036.17 mi (1,667.55 km) |
| Heek to Tryavna | 1,065.65 mi (1,715.00 km) |
| Heek to Tutrakan | 1,054.28 mi (1,696.70 km) |
| Heek to Varna | 1,141.05 mi (1,836.35 km) |
