| Bullas to Smolyan | 1,414.91 mi (2,277.08 km) |
| Bullas to Sofia | 1,349.20 mi (2,171.32 km) |
| Bullas to Sopot | 1,420.81 mi (2,286.57 km) |
| Bullas to Sozopol | 1,570.12 mi (2,526.87 km) |
| Bullas to Sredets | 1,544.51 mi (2,485.65 km) |
| Bullas to Stamboliyski | 1,407.66 mi (2,265.41 km) |
| Bullas to Stara Zagora | 1,465.67 mi (2,358.77 km) |
| Bullas to Svilengrad | 1,492.52 mi (2,401.97 km) |
| Bullas to Svishtov | 1,456.78 mi (2,344.47 km) |
| Bullas to Targovishte | 1,516.21 mi (2,440.10 km) |
| Bullas to Teteven | 1,397.84 mi (2,249.61 km) |
| Bullas to Troyan | 1,420.34 mi (2,285.81 km) |
| Bullas to Tryavna | 1,459.80 mi (2,349.33 km) |
| Bullas to Tutrakan | 1,522.70 mi (2,450.56 km) |
| Bullas to Varna | 1,583.07 mi (2,547.70 km) |
