| Bonn to Devnya | 1,090.62 mi (1,755.19 km) |
| Bonn to Dimitrovgrad | 1,061.72 mi (1,708.67 km) |
| Bonn to Dobrich | 1,087.75 mi (1,750.56 km) |
| Bonn to Dospat | 1,025.52 mi (1,650.42 km) |
| Bonn to Dupnitsa | 957.19 mi (1,540.44 km) |
| Bonn to Elhovo | 1,094.46 mi (1,761.37 km) |
| Bonn to Etropole | 964.54 mi (1,552.28 km) |
| Bonn to Gabrovo | 1,015.21 mi (1,633.83 km) |
| Bonn to Gorna Oryahovitsa | 1,018.44 mi (1,639.02 km) |
| Bonn to Gotse Delchev | 1,013.38 mi (1,630.88 km) |
| Bonn to Harmanli | 1,078.66 mi (1,735.93 km) |
| Bonn to Haskovo | 1,065.71 mi (1,715.09 km) |
| Bonn to Ihtiman | 975.45 mi (1,569.83 km) |
| Bonn to Isperih | 1,040.67 mi (1,674.79 km) |
| Bonn to Kardzhali | 1,070.99 mi (1,723.59 km) |
