| Birkenhead to Devnya | 1,555.17 mi (2,502.81 km) |
| Birkenhead to Dimitrovgrad | 1,528.47 mi (2,459.83 km) |
| Birkenhead to Dobrich | 1,551.21 mi (2,496.44 km) |
| Birkenhead to Dospat | 1,491.47 mi (2,400.28 km) |
| Birkenhead to Dupnitsa | 1,423.01 mi (2,290.11 km) |
| Birkenhead to Elhovo | 1,561.02 mi (2,512.23 km) |
| Birkenhead to Etropole | 1,431.25 mi (2,303.38 km) |
| Birkenhead to Gabrovo | 1,481.80 mi (2,384.72 km) |
| Birkenhead to Gorna Oryahovitsa | 1,484.65 mi (2,389.32 km) |
| Birkenhead to Gotse Delchev | 1,478.83 mi (2,379.94 km) |
| Birkenhead to Harmanli | 1,545.40 mi (2,487.09 km) |
| Birkenhead to Haskovo | 1,532.44 mi (2,466.22 km) |
| Birkenhead to Ihtiman | 1,441.91 mi (2,320.53 km) |
| Birkenhead to Isperih | 1,504.99 mi (2,422.04 km) |
| Birkenhead to Kardzhali | 1,537.59 mi (2,474.51 km) |
