| Gross-Umstadt to Smolyan | 948.60 mi (1,526.63 km) |
| Gross-Umstadt to Sofia | 844.88 mi (1,359.71 km) |
| Gross-Umstadt to Sopot | 902.45 mi (1,452.36 km) |
| Gross-Umstadt to Sozopol | 1,031.27 mi (1,659.68 km) |
| Gross-Umstadt to Sredets | 1,013.58 mi (1,631.20 km) |
| Gross-Umstadt to Stamboliyski | 916.91 mi (1,475.63 km) |
| Gross-Umstadt to Stara Zagora | 947.55 mi (1,524.94 km) |
| Gross-Umstadt to Svilengrad | 998.53 mi (1,606.98 km) |
| Gross-Umstadt to Svishtov | 886.49 mi (1,426.67 km) |
| Gross-Umstadt to Targovishte | 951.75 mi (1,531.69 km) |
| Gross-Umstadt to Teteven | 871.81 mi (1,403.04 km) |
| Gross-Umstadt to Troyan | 891.07 mi (1,434.04 km) |
| Gross-Umstadt to Tryavna | 923.12 mi (1,485.62 km) |
| Gross-Umstadt to Tutrakan | 922.68 mi (1,484.90 km) |
| Gross-Umstadt to Varna | 1,008.53 mi (1,623.07 km) |
