| Kirchhain to Smolyan | 984.67 mi (1,584.67 km) |
| Kirchhain to Sofia | 880.47 mi (1,416.99 km) |
| Kirchhain to Sopot | 935.16 mi (1,504.99 km) |
| Kirchhain to Sozopol | 1,059.01 mi (1,704.32 km) |
| Kirchhain to Sredets | 1,042.44 mi (1,677.65 km) |
| Kirchhain to Stamboliyski | 951.71 mi (1,531.62 km) |
| Kirchhain to Stara Zagora | 979.13 mi (1,575.76 km) |
| Kirchhain to Svilengrad | 1,031.06 mi (1,659.34 km) |
| Kirchhain to Svishtov | 914.62 mi (1,471.94 km) |
| Kirchhain to Targovishte | 978.80 mi (1,575.23 km) |
| Kirchhain to Teteven | 904.64 mi (1,455.88 km) |
| Kirchhain to Troyan | 923.08 mi (1,485.55 km) |
| Kirchhain to Tryavna | 953.58 mi (1,534.64 km) |
| Kirchhain to Tutrakan | 946.77 mi (1,523.67 km) |
| Kirchhain to Varna | 1,033.27 mi (1,662.89 km) |
