| Brussels to Sofia | 1,055.18 mi (1,698.15 km) |
| Brussels to Sopot | 1,114.02 mi (1,792.85 km) |
| Brussels to Sozopol | 1,244.05 mi (2,002.10 km) |
| Brussels to Sredets | 1,226.18 mi (1,973.34 km) |
| Brussels to Stamboliyski | 1,127.52 mi (1,814.57 km) |
| Brussels to Stara Zagora | 1,159.49 mi (1,866.02 km) |
| Brussels to Svilengrad | 1,210.08 mi (1,947.43 km) |
| Brussels to Svishtov | 1,099.26 mi (1,769.08 km) |
| Brussels to Targovishte | 1,164.61 mi (1,874.27 km) |
| Brussels to Teteven | 1,083.36 mi (1,743.50 km) |
| Brussels to Troyan | 1,102.92 mi (1,774.97 km) |
| Brussels to Tryavna | 1,135.41 mi (1,827.26 km) |
| Brussels to Tutrakan | 1,135.57 mi (1,827.53 km) |
| Brussels to Varna | 1,221.46 mi (1,965.75 km) |
| Brussels to Veliki Preslav | 1,177.57 mi (1,895.12 km) |
