| Laeken to Sofia | 1,055.95 mi (1,699.39 km) |
| Laeken to Sopot | 1,114.72 mi (1,793.97 km) |
| Laeken to Sozopol | 1,244.61 mi (2,003.00 km) |
| Laeken to Sredets | 1,226.77 mi (1,974.30 km) |
| Laeken to Stamboliyski | 1,128.28 mi (1,815.80 km) |
| Laeken to Stara Zagora | 1,160.15 mi (1,867.09 km) |
| Laeken to Svilengrad | 1,210.78 mi (1,948.56 km) |
| Laeken to Svishtov | 1,099.82 mi (1,769.98 km) |
| Laeken to Targovishte | 1,165.15 mi (1,875.12 km) |
| Laeken to Teteven | 1,084.06 mi (1,744.62 km) |
| Laeken to Troyan | 1,103.59 mi (1,776.06 km) |
| Laeken to Tryavna | 1,136.04 mi (1,828.28 km) |
| Laeken to Tutrakan | 1,136.02 mi (1,828.25 km) |
| Laeken to Varna | 1,221.93 mi (1,966.50 km) |
| Laeken to Veliki Preslav | 1,178.10 mi (1,895.97 km) |
