| Bougado to Smolyan | 1,711.44 mi (2,754.29 km) |
| Bougado to Sofia | 1,629.88 mi (2,623.04 km) |
| Bougado to Sopot | 1,701.80 mi (2,738.78 km) |
| Bougado to Sozopol | 1,852.62 mi (2,981.51 km) |
| Bougado to Sredets | 1,828.30 mi (2,942.37 km) |
| Bougado to Stamboliyski | 1,696.38 mi (2,730.06 km) |
| Bougado to Stara Zagora | 1,749.36 mi (2,815.33 km) |
| Bougado to Svilengrad | 1,785.14 mi (2,872.91 km) |
| Bougado to Svishtov | 1,723.11 mi (2,773.08 km) |
| Bougado to Targovishte | 1,787.70 mi (2,877.02 km) |
| Bougado to Teteven | 1,674.97 mi (2,695.60 km) |
| Bougado to Troyan | 1,697.85 mi (2,732.43 km) |
| Bougado to Tryavna | 1,737.28 mi (2,795.88 km) |
| Bougado to Tutrakan | 1,782.48 mi (2,868.62 km) |
| Bougado to Varna | 1,854.45 mi (2,984.44 km) |
