| Borsbeek to Sofia | 1,060.58 mi (1,706.84 km) |
| Borsbeek to Sopot | 1,118.45 mi (1,799.98 km) |
| Borsbeek to Sozopol | 1,246.81 mi (2,006.54 km) |
| Borsbeek to Sredets | 1,229.33 mi (1,978.41 km) |
| Borsbeek to Stamboliyski | 1,132.72 mi (1,822.94 km) |
| Borsbeek to Stara Zagora | 1,163.55 mi (1,872.56 km) |
| Borsbeek to Svilengrad | 1,214.53 mi (1,954.60 km) |
| Borsbeek to Svishtov | 1,102.06 mi (1,773.59 km) |
| Borsbeek to Targovishte | 1,167.09 mi (1,878.25 km) |
| Borsbeek to Teteven | 1,087.81 mi (1,750.65 km) |
| Borsbeek to Troyan | 1,107.08 mi (1,781.68 km) |
| Borsbeek to Tryavna | 1,139.05 mi (1,833.13 km) |
| Borsbeek to Tutrakan | 1,137.02 mi (1,829.85 km) |
| Borsbeek to Varna | 1,223.16 mi (1,968.49 km) |
| Borsbeek to Veliki Preslav | 1,180.00 mi (1,899.03 km) |
