| Frondenberg to Devnya | 1,083.20 mi (1,743.24 km) |
| Frondenberg to Dimitrovgrad | 1,061.23 mi (1,707.89 km) |
| Frondenberg to Dobrich | 1,078.84 mi (1,736.22 km) |
| Frondenberg to Dospat | 1,029.06 mi (1,656.12 km) |
| Frondenberg to Dupnitsa | 961.21 mi (1,546.92 km) |
| Frondenberg to Elhovo | 1,091.83 mi (1,757.13 km) |
| Frondenberg to Etropole | 964.91 mi (1,552.88 km) |
| Frondenberg to Gabrovo | 1,012.82 mi (1,629.97 km) |
| Frondenberg to Gorna Oryahovitsa | 1,014.53 mi (1,632.72 km) |
| Frondenberg to Gotse Delchev | 1,018.09 mi (1,638.45 km) |
| Frondenberg to Harmanli | 1,077.93 mi (1,734.76 km) |
| Frondenberg to Haskovo | 1,065.62 mi (1,714.95 km) |
| Frondenberg to Ihtiman | 977.44 mi (1,573.03 km) |
| Frondenberg to Isperih | 1,032.92 mi (1,662.33 km) |
| Frondenberg to Kardzhali | 1,072.08 mi (1,725.35 km) |
