| Alsfeld to Smolyan | 969.35 mi (1,560.02 km) |
| Alsfeld to Sofia | 865.13 mi (1,392.29 km) |
| Alsfeld to Sopot | 919.57 mi (1,479.91 km) |
| Alsfeld to Sozopol | 1,043.12 mi (1,678.74 km) |
| Alsfeld to Sredets | 1,026.61 mi (1,652.16 km) |
| Alsfeld to Stamboliyski | 936.28 mi (1,506.80 km) |
| Alsfeld to Stara Zagora | 963.46 mi (1,550.54 km) |
| Alsfeld to Svilengrad | 1,015.45 mi (1,634.21 km) |
| Alsfeld to Svishtov | 898.76 mi (1,446.41 km) |
| Alsfeld to Targovishte | 962.88 mi (1,549.61 km) |
| Alsfeld to Teteven | 889.07 mi (1,430.81 km) |
| Alsfeld to Troyan | 907.44 mi (1,460.38 km) |
| Alsfeld to Tryavna | 937.84 mi (1,509.31 km) |
| Alsfeld to Tutrakan | 930.74 mi (1,497.88 km) |
| Alsfeld to Varna | 1,017.26 mi (1,637.12 km) |
