| Horley to Devnya | 1,402.88 mi (2,257.72 km) |
| Horley to Dimitrovgrad | 1,366.19 mi (2,198.67 km) |
| Horley to Dobrich | 1,401.27 mi (2,255.13 km) |
| Horley to Dospat | 1,324.13 mi (2,130.98 km) |
| Horley to Dupnitsa | 1,255.53 mi (2,020.58 km) |
| Horley to Elhovo | 1,401.59 mi (2,255.64 km) |
| Horley to Etropole | 1,268.37 mi (2,041.25 km) |
| Horley to Gabrovo | 1,322.39 mi (2,128.18 km) |
| Horley to Gorna Oryahovitsa | 1,327.38 mi (2,136.21 km) |
| Horley to Gotse Delchev | 1,310.13 mi (2,108.45 km) |
| Horley to Harmanli | 1,383.38 mi (2,226.33 km) |
| Horley to Haskovo | 1,369.61 mi (2,204.17 km) |
| Horley to Ihtiman | 1,276.87 mi (2,054.92 km) |
| Horley to Isperih | 1,353.33 mi (2,177.98 km) |
| Horley to Kardzhali | 1,373.15 mi (2,209.86 km) |
