| Strombeek-Bever to Sofia | 1,057.12 mi (1,701.28 km) |
| Strombeek-Bever to Sopot | 1,115.81 mi (1,795.73 km) |
| Strombeek-Bever to Sozopol | 1,245.57 mi (2,004.55 km) |
| Strombeek-Bever to Sredets | 1,227.76 mi (1,975.89 km) |
| Strombeek-Bever to Stamboliyski | 1,129.44 mi (1,817.65 km) |
| Strombeek-Bever to Stara Zagora | 1,161.22 mi (1,868.80 km) |
| Strombeek-Bever to Svilengrad | 1,211.87 mi (1,950.32 km) |
| Strombeek-Bever to Svishtov | 1,100.78 mi (1,771.53 km) |
| Strombeek-Bever to Targovishte | 1,166.09 mi (1,876.63 km) |
| Strombeek-Bever to Teteven | 1,085.15 mi (1,746.39 km) |
| Strombeek-Bever to Troyan | 1,104.66 mi (1,777.78 km) |
| Strombeek-Bever to Tryavna | 1,137.07 mi (1,829.94 km) |
| Strombeek-Bever to Tutrakan | 1,136.87 mi (1,829.62 km) |
| Strombeek-Bever to Varna | 1,222.80 mi (1,967.91 km) |
| Strombeek-Bever to Veliki Preslav | 1,179.04 mi (1,897.47 km) |
