| Aldenhoven to Smolyan | 1,085.27 mi (1,746.58 km) |
| Aldenhoven to Sofia | 981.51 mi (1,579.59 km) |
| Aldenhoven to Sopot | 1,038.72 mi (1,671.66 km) |
| Aldenhoven to Sozopol | 1,166.28 mi (1,876.95 km) |
| Aldenhoven to Sredets | 1,148.94 mi (1,849.05 km) |
| Aldenhoven to Stamboliyski | 1,053.48 mi (1,695.42 km) |
| Aldenhoven to Stara Zagora | 1,083.61 mi (1,743.90 km) |
| Aldenhoven to Svilengrad | 1,134.79 mi (1,826.27 km) |
| Aldenhoven to Svishtov | 1,021.57 mi (1,644.05 km) |
| Aldenhoven to Targovishte | 1,086.48 mi (1,748.51 km) |
| Aldenhoven to Teteven | 1,008.09 mi (1,622.36 km) |
| Aldenhoven to Troyan | 1,027.20 mi (1,653.13 km) |
| Aldenhoven to Tryavna | 1,058.91 mi (1,704.14 km) |
| Aldenhoven to Tutrakan | 1,056.17 mi (1,699.73 km) |
| Aldenhoven to Varna | 1,142.35 mi (1,838.43 km) |
