| Schmalkalden to Smolyan | 926.30 mi (1,490.74 km) |
| Schmalkalden to Sofia | 822.00 mi (1,322.89 km) |
| Schmalkalden to Sopot | 874.93 mi (1,408.06 km) |
| Schmalkalden to Sozopol | 996.26 mi (1,603.32 km) |
| Schmalkalden to Sredets | 980.19 mi (1,577.46 km) |
| Schmalkalden to Stamboliyski | 892.62 mi (1,436.54 km) |
| Schmalkalden to Stara Zagora | 918.24 mi (1,477.77 km) |
| Schmalkalden to Svilengrad | 970.60 mi (1,562.03 km) |
| Schmalkalden to Svishtov | 852.19 mi (1,371.47 km) |
| Schmalkalden to Targovishte | 915.84 mi (1,473.91 km) |
| Schmalkalden to Teteven | 844.53 mi (1,359.14 km) |
| Schmalkalden to Troyan | 862.49 mi (1,388.04 km) |
| Schmalkalden to Tryavna | 892.18 mi (1,435.82 km) |
| Schmalkalden to Tutrakan | 882.72 mi (1,420.60 km) |
| Schmalkalden to Varna | 969.37 mi (1,560.05 km) |
