| London Colney to Devnya | 1,416.73 mi (2,280.00 km) |
| London Colney to Dimitrovgrad | 1,383.23 mi (2,226.09 km) |
| London Colney to Dobrich | 1,414.39 mi (2,276.24 km) |
| London Colney to Dospat | 1,342.89 mi (2,161.18 km) |
| London Colney to Dupnitsa | 1,274.30 mi (2,050.79 km) |
| London Colney to Elhovo | 1,417.71 mi (2,281.58 km) |
| London Colney to Etropole | 1,285.55 mi (2,068.89 km) |
| London Colney to Gabrovo | 1,338.44 mi (2,154.02 km) |
| London Colney to Gorna Oryahovitsa | 1,342.74 mi (2,160.93 km) |
| London Colney to Gotse Delchev | 1,329.38 mi (2,139.42 km) |
| London Colney to Harmanli | 1,400.34 mi (2,253.64 km) |
| London Colney to Haskovo | 1,386.84 mi (2,231.90 km) |
| London Colney to Ihtiman | 1,294.80 mi (2,083.77 km) |
| London Colney to Isperih | 1,366.94 mi (2,199.88 km) |
| London Colney to Kardzhali | 1,390.93 mi (2,238.48 km) |
