| Mortsel to Sofia | 1,060.21 mi (1,706.25 km) |
| Mortsel to Sopot | 1,118.18 mi (1,799.53 km) |
| Mortsel to Sozopol | 1,246.70 mi (2,006.36 km) |
| Mortsel to Sredets | 1,229.18 mi (1,978.17 km) |
| Mortsel to Stamboliyski | 1,132.37 mi (1,822.38 km) |
| Mortsel to Stara Zagora | 1,163.32 mi (1,872.18 km) |
| Mortsel to Svilengrad | 1,214.26 mi (1,954.16 km) |
| Mortsel to Svishtov | 1,101.94 mi (1,773.40 km) |
| Mortsel to Targovishte | 1,167.00 mi (1,878.11 km) |
| Mortsel to Teteven | 1,087.53 mi (1,750.21 km) |
| Mortsel to Troyan | 1,106.83 mi (1,781.28 km) |
| Mortsel to Tryavna | 1,138.86 mi (1,832.81 km) |
| Mortsel to Tutrakan | 1,137.03 mi (1,829.88 km) |
| Mortsel to Varna | 1,223.15 mi (1,968.47 km) |
| Mortsel to Veliki Preslav | 1,179.92 mi (1,898.90 km) |
