| Birchington to Devnya | 1,343.99 mi (2,162.94 km) |
| Birchington to Dimitrovgrad | 1,310.18 mi (2,108.53 km) |
| Birchington to Dobrich | 1,341.81 mi (2,159.43 km) |
| Birchington to Dospat | 1,269.94 mi (2,043.78 km) |
| Birchington to Dupnitsa | 1,201.36 mi (1,933.40 km) |
| Birchington to Elhovo | 1,344.68 mi (2,164.06 km) |
| Birchington to Etropole | 1,212.50 mi (1,951.33 km) |
| Birchington to Gabrovo | 1,265.42 mi (2,036.50 km) |
| Birchington to Gorna Oryahovitsa | 1,269.78 mi (2,043.51 km) |
| Birchington to Gotse Delchev | 1,256.49 mi (2,022.13 km) |
| Birchington to Harmanli | 1,327.30 mi (2,136.08 km) |
| Birchington to Haskovo | 1,313.79 mi (2,114.34 km) |
| Birchington to Ihtiman | 1,221.78 mi (1,966.26 km) |
| Birchington to Isperih | 1,294.25 mi (2,082.89 km) |
| Birchington to Kardzhali | 1,317.90 mi (2,120.95 km) |
