| Usingen to Smolyan | 980.44 mi (1,577.86 km) |
| Usingen to Sofia | 876.51 mi (1,410.61 km) |
| Usingen to Sopot | 933.10 mi (1,501.68 km) |
| Usingen to Sozopol | 1,060.14 mi (1,706.13 km) |
| Usingen to Sredets | 1,042.86 mi (1,678.32 km) |
| Usingen to Stamboliyski | 948.30 mi (1,526.14 km) |
| Usingen to Stara Zagora | 977.81 mi (1,573.64 km) |
| Usingen to Svilengrad | 1,029.16 mi (1,656.27 km) |
| Usingen to Svishtov | 915.44 mi (1,473.25 km) |
| Usingen to Targovishte | 980.31 mi (1,577.66 km) |
| Usingen to Teteven | 902.49 mi (1,452.41 km) |
| Usingen to Troyan | 921.46 mi (1,482.95 km) |
| Usingen to Tryavna | 952.96 mi (1,533.65 km) |
| Usingen to Tutrakan | 950.06 mi (1,528.97 km) |
| Usingen to Varna | 1,036.21 mi (1,667.62 km) |
