| Bad Sooden-Allendorf to Smolyan | 966.33 mi (1,555.16 km) |
| Bad Sooden-Allendorf to Sofia | 862.04 mi (1,387.32 km) |
| Bad Sooden-Allendorf to Sopot | 913.83 mi (1,470.67 km) |
| Bad Sooden-Allendorf to Sozopol | 1,032.97 mi (1,662.40 km) |
| Bad Sooden-Allendorf to Sredets | 1,017.39 mi (1,637.33 km) |
| Bad Sooden-Allendorf to Stamboliyski | 932.26 mi (1,500.32 km) |
| Bad Sooden-Allendorf to Stara Zagora | 956.64 mi (1,539.56 km) |
| Bad Sooden-Allendorf to Svilengrad | 1,009.28 mi (1,624.28 km) |
| Bad Sooden-Allendorf to Svishtov | 889.33 mi (1,431.23 km) |
| Bad Sooden-Allendorf to Targovishte | 952.40 mi (1,532.74 km) |
| Bad Sooden-Allendorf to Teteven | 883.53 mi (1,421.91 km) |
| Bad Sooden-Allendorf to Troyan | 901.15 mi (1,450.26 km) |
| Bad Sooden-Allendorf to Tryavna | 930.18 mi (1,496.98 km) |
| Bad Sooden-Allendorf to Tutrakan | 918.05 mi (1,477.45 km) |
| Bad Sooden-Allendorf to Varna | 1,004.82 mi (1,617.11 km) |
