| Schmallenberg to Smolyan | 1,020.32 mi (1,642.04 km) |
| Schmallenberg to Sofia | 916.10 mi (1,474.32 km) |
| Schmallenberg to Sopot | 970.55 mi (1,561.94 km) |
| Schmallenberg to Sozopol | 1,093.78 mi (1,760.27 km) |
| Schmallenberg to Sredets | 1,077.37 mi (1,733.86 km) |
| Schmallenberg to Stamboliyski | 987.27 mi (1,588.85 km) |
| Schmallenberg to Stara Zagora | 1,014.39 mi (1,632.51 km) |
| Schmallenberg to Svilengrad | 1,066.41 mi (1,716.23 km) |
| Schmallenberg to Svishtov | 949.48 mi (1,528.05 km) |
| Schmallenberg to Targovishte | 1,013.50 mi (1,631.06 km) |
| Schmallenberg to Teteven | 940.04 mi (1,512.86 km) |
| Schmallenberg to Troyan | 958.40 mi (1,542.39 km) |
| Schmallenberg to Tryavna | 988.73 mi (1,591.20 km) |
| Schmallenberg to Tutrakan | 981.01 mi (1,578.78 km) |
| Schmallenberg to Varna | 1,067.59 mi (1,718.12 km) |
