| Horley to Montana | 1,213.48 mi (1,952.91 km) |
| Horley to Nova Zagora | 1,365.61 mi (2,197.74 km) |
| Horley to Novi Iskar | 1,242.94 mi (2,000.32 km) |
| Horley to Novi Pazar | 1,382.39 mi (2,224.74 km) |
| Horley to Omurtag | 1,358.76 mi (2,186.72 km) |
| Horley to Panagyurishte | 1,289.38 mi (2,075.06 km) |
| Horley to Parvomay | 1,348.31 mi (2,169.90 km) |
| Horley to Pavlikeni | 1,307.33 mi (2,103.94 km) |
| Horley to Pazardzhik | 1,307.85 mi (2,104.78 km) |
| Horley to Pernik | 1,238.14 mi (1,992.59 km) |
| Horley to Peshtera | 1,313.40 mi (2,113.72 km) |
| Horley to Petrich | 1,296.39 mi (2,086.33 km) |
| Horley to Pleven | 1,271.66 mi (2,046.54 km) |
| Horley to Plovdiv | 1,327.03 mi (2,135.65 km) |
| Horley to Pomorie | 1,429.71 mi (2,300.89 km) |
