| Penarth to Devnya | 1,533.39 mi (2,467.76 km) |
| Penarth to Dimitrovgrad | 1,495.60 mi (2,406.93 km) |
| Penarth to Dobrich | 1,531.89 mi (2,465.34 km) |
| Penarth to Dospat | 1,452.50 mi (2,337.58 km) |
| Penarth to Dupnitsa | 1,383.93 mi (2,227.22 km) |
| Penarth to Elhovo | 1,531.41 mi (2,464.57 km) |
| Penarth to Etropole | 1,397.73 mi (2,249.44 km) |
| Penarth to Gabrovo | 1,452.26 mi (2,337.18 km) |
| Penarth to Gorna Oryahovitsa | 1,457.50 mi (2,345.62 km) |
| Penarth to Gotse Delchev | 1,438.16 mi (2,314.50 km) |
| Penarth to Harmanli | 1,512.82 mi (2,434.64 km) |
| Penarth to Haskovo | 1,498.91 mi (2,412.27 km) |
| Penarth to Ihtiman | 1,405.81 mi (2,262.43 km) |
| Penarth to Isperih | 1,483.89 mi (2,388.09 km) |
| Penarth to Kardzhali | 1,502.14 mi (2,417.46 km) |
