| Sankt Augustin to Smolyan | 1,046.75 mi (1,684.58 km) |
| Sankt Augustin to Sofia | 942.87 mi (1,517.40 km) |
| Sankt Augustin to Sopot | 999.59 mi (1,608.68 km) |
| Sankt Augustin to Sozopol | 1,126.50 mi (1,812.93 km) |
| Sankt Augustin to Sredets | 1,109.29 mi (1,785.23 km) |
| Sankt Augustin to Stamboliyski | 1,014.71 mi (1,633.02 km) |
| Sankt Augustin to Stara Zagora | 1,044.31 mi (1,680.66 km) |
| Sankt Augustin to Svilengrad | 1,095.65 mi (1,763.27 km) |
| Sankt Augustin to Svishtov | 981.82 mi (1,580.09 km) |
| Sankt Augustin to Targovishte | 1,046.63 mi (1,684.38 km) |
| Sankt Augustin to Teteven | 968.97 mi (1,559.41 km) |
| Sankt Augustin to Troyan | 987.96 mi (1,589.97 km) |
| Sankt Augustin to Tryavna | 1,019.45 mi (1,640.64 km) |
| Sankt Augustin to Tutrakan | 1,016.07 mi (1,635.20 km) |
| Sankt Augustin to Varna | 1,102.30 mi (1,773.98 km) |
