| Buhl to Smolyan | 942.12 mi (1,516.20 km) |
| Buhl to Sofia | 840.02 mi (1,351.88 km) |
| Buhl to Sopot | 901.74 mi (1,451.22 km) |
| Buhl to Sozopol | 1,037.31 mi (1,669.39 km) |
| Buhl to Sredets | 1,018.03 mi (1,638.36 km) |
| Buhl to Stamboliyski | 912.75 mi (1,468.93 km) |
| Buhl to Stara Zagora | 948.28 mi (1,526.10 km) |
| Buhl to Svilengrad | 997.40 mi (1,605.16 km) |
| Buhl to Svishtov | 892.99 mi (1,437.12 km) |
| Buhl to Targovishte | 959.35 mi (1,543.92 km) |
| Buhl to Teteven | 871.15 mi (1,401.98 km) |
| Buhl to Troyan | 891.57 mi (1,434.84 km) |
| Buhl to Tryavna | 925.76 mi (1,489.87 km) |
| Buhl to Tutrakan | 934.83 mi (1,504.47 km) |
| Buhl to Varna | 1,019.13 mi (1,640.13 km) |
