| Bailen to Smolyan | 1,522.51 mi (2,450.25 km) |
| Bailen to Sofia | 1,454.46 mi (2,340.73 km) |
| Bailen to Sopot | 1,526.33 mi (2,456.39 km) |
| Bailen to Sozopol | 1,676.23 mi (2,697.63 km) |
| Bailen to Sredets | 1,650.73 mi (2,656.60 km) |
| Bailen to Stamboliyski | 1,514.21 mi (2,436.88 km) |
| Bailen to Stara Zagora | 1,571.69 mi (2,529.39 km) |
| Bailen to Svilengrad | 1,599.79 mi (2,574.61 km) |
| Bailen to Svishtov | 1,560.29 mi (2,511.04 km) |
| Bailen to Targovishte | 1,620.64 mi (2,608.17 km) |
| Bailen to Teteven | 1,502.75 mi (2,418.44 km) |
| Bailen to Troyan | 1,525.37 mi (2,454.84 km) |
| Bailen to Tryavna | 1,564.94 mi (2,518.53 km) |
| Bailen to Tutrakan | 1,625.42 mi (2,615.86 km) |
| Bailen to Varna | 1,687.66 mi (2,716.02 km) |
