| Felsberg to Smolyan | 979.57 mi (1,576.47 km) |
| Felsberg to Sofia | 875.28 mi (1,408.62 km) |
| Felsberg to Sopot | 928.34 mi (1,494.02 km) |
| Felsberg to Sozopol | 1,049.52 mi (1,689.03 km) |
| Felsberg to Sredets | 1,033.52 mi (1,663.29 km) |
| Felsberg to Stamboliyski | 945.97 mi (1,522.38 km) |
| Felsberg to Stara Zagora | 971.66 mi (1,563.74 km) |
| Felsberg to Svilengrad | 1,024.02 mi (1,648.00 km) |
| Felsberg to Svishtov | 905.51 mi (1,457.28 km) |
| Felsberg to Targovishte | 969.07 mi (1,559.57 km) |
| Felsberg to Teteven | 897.94 mi (1,445.09 km) |
| Felsberg to Troyan | 915.91 mi (1,474.01 km) |
| Felsberg to Tryavna | 945.58 mi (1,521.76 km) |
| Felsberg to Tutrakan | 935.67 mi (1,505.82 km) |
| Felsberg to Varna | 1,022.36 mi (1,645.33 km) |
