| Orpington to Montana | 1,206.50 mi (1,941.68 km) |
| Orpington to Nova Zagora | 1,358.24 mi (2,185.88 km) |
| Orpington to Novi Iskar | 1,236.38 mi (1,989.77 km) |
| Orpington to Novi Pazar | 1,374.01 mi (2,211.26 km) |
| Orpington to Omurtag | 1,350.83 mi (2,173.94 km) |
| Orpington to Panagyurishte | 1,282.71 mi (2,064.33 km) |
| Orpington to Parvomay | 1,341.52 mi (2,158.97 km) |
| Orpington to Pavlikeni | 1,299.67 mi (2,091.62 km) |
| Orpington to Pazardzhik | 1,301.34 mi (2,094.30 km) |
| Orpington to Pernik | 1,231.87 mi (1,982.50 km) |
| Orpington to Peshtera | 1,307.03 mi (2,103.46 km) |
| Orpington to Petrich | 1,290.94 mi (2,077.57 km) |
| Orpington to Pleven | 1,264.14 mi (2,034.44 km) |
| Orpington to Plovdiv | 1,320.39 mi (2,124.96 km) |
| Orpington to Pomorie | 1,421.73 mi (2,288.05 km) |
