| Morfelden-Walldorf to Smolyan | 966.69 mi (1,555.73 km) |
| Morfelden-Walldorf to Sofia | 862.97 mi (1,388.82 km) |
| Morfelden-Walldorf to Sopot | 920.51 mi (1,481.42 km) |
| Morfelden-Walldorf to Sozopol | 1,049.19 mi (1,688.51 km) |
| Morfelden-Walldorf to Sredets | 1,031.54 mi (1,660.10 km) |
| Morfelden-Walldorf to Stamboliyski | 935.00 mi (1,504.73 km) |
| Morfelden-Walldorf to Stara Zagora | 965.59 mi (1,553.96 km) |
| Morfelden-Walldorf to Svilengrad | 1,016.59 mi (1,636.04 km) |
| Morfelden-Walldorf to Svishtov | 904.41 mi (1,455.51 km) |
| Morfelden-Walldorf to Targovishte | 969.63 mi (1,560.46 km) |
| Morfelden-Walldorf to Teteven | 889.87 mi (1,432.10 km) |
| Morfelden-Walldorf to Troyan | 909.12 mi (1,463.08 km) |
| Morfelden-Walldorf to Tryavna | 941.13 mi (1,514.60 km) |
| Morfelden-Walldorf to Tutrakan | 940.39 mi (1,513.42 km) |
| Morfelden-Walldorf to Varna | 1,026.29 mi (1,651.66 km) |
