| Horndean to Devnya | 1,434.43 mi (2,308.49 km) |
| Horndean to Dimitrovgrad | 1,395.40 mi (2,245.69 km) |
| Horndean to Dobrich | 1,433.30 mi (2,306.68 km) |
| Horndean to Dospat | 1,351.94 mi (2,175.74 km) |
| Horndean to Dupnitsa | 1,283.38 mi (2,065.40 km) |
| Horndean to Elhovo | 1,431.49 mi (2,303.77 km) |
| Horndean to Etropole | 1,297.52 mi (2,088.16 km) |
| Horndean to Gabrovo | 1,352.38 mi (2,176.45 km) |
| Horndean to Gorna Oryahovitsa | 1,357.88 mi (2,185.30 km) |
| Horndean to Gotse Delchev | 1,337.54 mi (2,152.57 km) |
| Horndean to Harmanli | 1,412.64 mi (2,273.42 km) |
| Horndean to Haskovo | 1,398.67 mi (2,250.94 km) |
| Horndean to Ihtiman | 1,305.41 mi (2,100.86 km) |
| Horndean to Isperih | 1,385.06 mi (2,229.04 km) |
| Horndean to Kardzhali | 1,401.76 mi (2,255.91 km) |
