| Bulle to Smolyan | 939.71 mi (1,512.32 km) |
| Bulle to Sofia | 842.79 mi (1,356.34 km) |
| Bulle to Sopot | 910.12 mi (1,464.70 km) |
| Bulle to Sozopol | 1,054.46 mi (1,696.99 km) |
| Bulle to Sredets | 1,032.84 mi (1,662.19 km) |
| Bulle to Stamboliyski | 914.97 mi (1,472.50 km) |
| Bulle to Stara Zagora | 958.09 mi (1,541.89 km) |
| Bulle to Svilengrad | 1,003.09 mi (1,614.31 km) |
| Bulle to Svishtov | 913.75 mi (1,470.53 km) |
| Bulle to Targovishte | 980.56 mi (1,578.05 km) |
| Bulle to Teteven | 880.34 mi (1,416.76 km) |
| Bulle to Troyan | 902.23 mi (1,452.00 km) |
| Bulle to Tryavna | 939.30 mi (1,511.66 km) |
| Bulle to Tutrakan | 964.16 mi (1,551.66 km) |
| Bulle to Varna | 1,044.29 mi (1,680.62 km) |
