| Birchington to Montana | 1,157.35 mi (1,862.57 km) |
| Birchington to Nova Zagora | 1,308.67 mi (2,106.10 km) |
| Birchington to Novi Iskar | 1,187.68 mi (1,911.39 km) |
| Birchington to Novi Pazar | 1,323.54 mi (2,130.04 km) |
| Birchington to Omurtag | 1,300.73 mi (2,093.32 km) |
| Birchington to Panagyurishte | 1,233.87 mi (1,985.73 km) |
| Birchington to Parvomay | 1,292.54 mi (2,080.14 km) |
| Birchington to Pavlikeni | 1,249.84 mi (2,011.42 km) |
| Birchington to Pazardzhik | 1,252.67 mi (2,015.98 km) |
| Birchington to Pernik | 1,183.49 mi (1,904.65 km) |
| Birchington to Peshtera | 1,258.51 mi (2,025.38 km) |
| Birchington to Petrich | 1,243.55 mi (2,001.30 km) |
| Birchington to Pleven | 1,214.44 mi (1,954.45 km) |
| Birchington to Plovdiv | 1,271.57 mi (2,046.40 km) |
| Birchington to Pomorie | 1,371.58 mi (2,207.34 km) |
