| Dieburg to Smolyan | 952.97 mi (1,533.65 km) |
| Dieburg to Sofia | 849.25 mi (1,366.73 km) |
| Dieburg to Sopot | 906.80 mi (1,459.36 km) |
| Dieburg to Sozopol | 1,035.58 mi (1,666.61 km) |
| Dieburg to Sredets | 1,017.90 mi (1,638.15 km) |
| Dieburg to Stamboliyski | 921.28 mi (1,482.65 km) |
| Dieburg to Stara Zagora | 951.90 mi (1,531.93 km) |
| Dieburg to Svilengrad | 1,002.88 mi (1,613.98 km) |
| Dieburg to Svishtov | 890.80 mi (1,433.61 km) |
| Dieburg to Targovishte | 956.05 mi (1,538.61 km) |
| Dieburg to Teteven | 876.16 mi (1,410.04 km) |
| Dieburg to Troyan | 895.42 mi (1,441.04 km) |
| Dieburg to Tryavna | 927.46 mi (1,492.60 km) |
| Dieburg to Tutrakan | 926.93 mi (1,491.75 km) |
| Dieburg to Varna | 1,012.80 mi (1,629.94 km) |
