| Bad Salzdetfurth to Smolyan | 999.77 mi (1,608.97 km) |
| Bad Salzdetfurth to Sofia | 895.65 mi (1,441.41 km) |
| Bad Salzdetfurth to Sopot | 944.95 mi (1,520.75 km) |
| Bad Salzdetfurth to Sozopol | 1,059.61 mi (1,705.28 km) |
| Bad Salzdetfurth to Sredets | 1,045.00 mi (1,681.76 km) |
| Bad Salzdetfurth to Stamboliyski | 964.88 mi (1,552.83 km) |
| Bad Salzdetfurth to Stara Zagora | 986.66 mi (1,587.88 km) |
| Bad Salzdetfurth to Svilengrad | 1,039.80 mi (1,673.39 km) |
| Bad Salzdetfurth to Svishtov | 917.03 mi (1,475.82 km) |
| Bad Salzdetfurth to Targovishte | 978.90 mi (1,575.39 km) |
| Bad Salzdetfurth to Teteven | 914.92 mi (1,472.42 km) |
| Bad Salzdetfurth to Troyan | 931.79 mi (1,499.58 km) |
| Bad Salzdetfurth to Tryavna | 959.47 mi (1,544.12 km) |
| Bad Salzdetfurth to Tutrakan | 942.39 mi (1,516.63 km) |
| Bad Salzdetfurth to Varna | 1,029.22 mi (1,656.37 km) |
