| Blankenburg to Smolyan | 956.96 mi (1,540.09 km) |
| Blankenburg to Sofia | 852.95 mi (1,372.68 km) |
| Blankenburg to Sopot | 901.54 mi (1,450.88 km) |
| Blankenburg to Sozopol | 1,015.35 mi (1,634.04 km) |
| Blankenburg to Sredets | 1,000.87 mi (1,610.75 km) |
| Blankenburg to Stamboliyski | 921.86 mi (1,483.58 km) |
| Blankenburg to Stara Zagora | 942.99 mi (1,517.59 km) |
| Blankenburg to Svilengrad | 996.21 mi (1,603.25 km) |
| Blankenburg to Svishtov | 872.94 mi (1,404.87 km) |
| Blankenburg to Targovishte | 934.63 mi (1,504.14 km) |
| Blankenburg to Teteven | 871.58 mi (1,402.68 km) |
| Blankenburg to Troyan | 888.27 mi (1,429.54 km) |
| Blankenburg to Tryavna | 915.66 mi (1,473.61 km) |
| Blankenburg to Tutrakan | 897.89 mi (1,445.02 km) |
| Blankenburg to Varna | 984.72 mi (1,584.75 km) |
