| Sankt Leon-Rot to Smolyan | 941.07 mi (1,514.50 km) |
| Sankt Leon-Rot to Sofia | 838.02 mi (1,348.66 km) |
| Sankt Leon-Rot to Sopot | 897.72 mi (1,444.74 km) |
| Sankt Leon-Rot to Sozopol | 1,030.05 mi (1,657.71 km) |
| Sankt Leon-Rot to Sredets | 1,011.54 mi (1,627.92 km) |
| Sankt Leon-Rot to Stamboliyski | 910.49 mi (1,465.29 km) |
| Sankt Leon-Rot to Stara Zagora | 943.59 mi (1,518.56 km) |
| Sankt Leon-Rot to Svilengrad | 993.70 mi (1,599.20 km) |
| Sankt Leon-Rot to Svishtov | 885.34 mi (1,424.82 km) |
| Sankt Leon-Rot to Targovishte | 951.23 mi (1,530.86 km) |
| Sankt Leon-Rot to Teteven | 867.06 mi (1,395.40 km) |
| Sankt Leon-Rot to Troyan | 886.93 mi (1,427.37 km) |
| Sankt Leon-Rot to Tryavna | 920.09 mi (1,480.73 km) |
| Sankt Leon-Rot to Tutrakan | 924.43 mi (1,487.72 km) |
| Sankt Leon-Rot to Varna | 1,009.58 mi (1,624.76 km) |
