| Cartagena to Smolyan | 1,389.39 mi (2,236.00 km) |
| Cartagena to Sofia | 1,326.25 mi (2,134.40 km) |
| Cartagena to Sopot | 1,397.53 mi (2,249.11 km) |
| Cartagena to Sozopol | 1,546.11 mi (2,488.22 km) |
| Cartagena to Sredets | 1,520.39 mi (2,446.83 km) |
| Cartagena to Stamboliyski | 1,383.30 mi (2,226.21 km) |
| Cartagena to Stara Zagora | 1,441.84 mi (2,320.41 km) |
| Cartagena to Svilengrad | 1,467.29 mi (2,361.38 km) |
| Cartagena to Svishtov | 1,435.48 mi (2,310.17 km) |
| Cartagena to Targovishte | 1,493.94 mi (2,404.27 km) |
| Cartagena to Teteven | 1,375.22 mi (2,213.20 km) |
| Cartagena to Troyan | 1,397.57 mi (2,249.17 km) |
| Cartagena to Tryavna | 1,436.89 mi (2,312.45 km) |
| Cartagena to Tutrakan | 1,502.07 mi (2,417.35 km) |
| Cartagena to Varna | 1,560.59 mi (2,511.53 km) |
