| Kusterdingen to Smolyan | 896.38 mi (1,442.59 km) |
| Kusterdingen to Sofia | 794.08 mi (1,277.94 km) |
| Kusterdingen to Sopot | 855.50 mi (1,376.79 km) |
| Kusterdingen to Sozopol | 990.77 mi (1,594.50 km) |
| Kusterdingen to Sredets | 971.54 mi (1,563.55 km) |
| Kusterdingen to Stamboliyski | 866.78 mi (1,394.94 km) |
| Kusterdingen to Stara Zagora | 901.95 mi (1,451.55 km) |
| Kusterdingen to Svilengrad | 951.21 mi (1,530.83 km) |
| Kusterdingen to Svishtov | 846.43 mi (1,362.19 km) |
| Kusterdingen to Targovishte | 912.77 mi (1,468.96 km) |
| Kusterdingen to Teteven | 824.89 mi (1,327.54 km) |
| Kusterdingen to Troyan | 845.25 mi (1,360.29 km) |
| Kusterdingen to Tryavna | 879.34 mi (1,415.15 km) |
| Kusterdingen to Tutrakan | 888.25 mi (1,429.50 km) |
| Kusterdingen to Varna | 972.54 mi (1,565.14 km) |
