| Karlsfeld to Smolyan | 791.66 mi (1,274.05 km) |
| Karlsfeld to Sofia | 688.62 mi (1,108.23 km) |
| Karlsfeld to Sopot | 748.63 mi (1,204.81 km) |
| Karlsfeld to Sozopol | 882.26 mi (1,419.86 km) |
| Karlsfeld to Sredets | 863.36 mi (1,389.44 km) |
| Karlsfeld to Stamboliyski | 761.12 mi (1,224.90 km) |
| Karlsfeld to Stara Zagora | 794.69 mi (1,278.93 km) |
| Karlsfeld to Svilengrad | 844.55 mi (1,359.18 km) |
| Karlsfeld to Svishtov | 737.73 mi (1,187.25 km) |
| Karlsfeld to Targovishte | 803.91 mi (1,293.77 km) |
| Karlsfeld to Teteven | 717.98 mi (1,155.48 km) |
| Karlsfeld to Troyan | 738.00 mi (1,187.70 km) |
| Karlsfeld to Tryavna | 771.53 mi (1,241.65 km) |
| Karlsfeld to Tutrakan | 778.77 mi (1,253.32 km) |
| Karlsfeld to Varna | 863.26 mi (1,389.28 km) |
