| Regenstauf to Smolyan | 800.67 mi (1,288.55 km) |
| Regenstauf to Sofia | 696.57 mi (1,121.02 km) |
| Regenstauf to Sopot | 752.42 mi (1,210.90 km) |
| Regenstauf to Sozopol | 879.49 mi (1,415.40 km) |
| Regenstauf to Sredets | 862.08 mi (1,387.38 km) |
| Regenstauf to Stamboliyski | 768.09 mi (1,236.13 km) |
| Regenstauf to Stara Zagora | 797.01 mi (1,282.66 km) |
| Regenstauf to Svilengrad | 848.45 mi (1,365.45 km) |
| Regenstauf to Svishtov | 734.75 mi (1,182.46 km) |
| Regenstauf to Targovishte | 799.80 mi (1,287.15 km) |
| Regenstauf to Teteven | 721.82 mi (1,161.66 km) |
| Regenstauf to Troyan | 740.69 mi (1,192.03 km) |
| Regenstauf to Tryavna | 772.11 mi (1,242.59 km) |
| Regenstauf to Tutrakan | 770.40 mi (1,239.84 km) |
| Regenstauf to Varna | 856.29 mi (1,378.07 km) |
