| Buckingham to Devnya | 1,449.51 mi (2,332.77 km) |
| Buckingham to Dimitrovgrad | 1,416.90 mi (2,280.27 km) |
| Buckingham to Dobrich | 1,446.95 mi (2,328.64 km) |
| Buckingham to Dospat | 1,376.93 mi (2,215.96 km) |
| Buckingham to Dupnitsa | 1,308.35 mi (2,105.58 km) |
| Buckingham to Elhovo | 1,451.14 mi (2,335.38 km) |
| Buckingham to Etropole | 1,319.26 mi (2,123.14 km) |
| Buckingham to Gabrovo | 1,371.87 mi (2,207.81 km) |
| Buckingham to Gorna Oryahovitsa | 1,375.98 mi (2,214.43 km) |
| Buckingham to Gotse Delchev | 1,363.50 mi (2,194.35 km) |
| Buckingham to Harmanli | 1,433.99 mi (2,307.78 km) |
| Buckingham to Haskovo | 1,420.55 mi (2,286.15 km) |
| Buckingham to Ihtiman | 1,328.67 mi (2,138.29 km) |
| Buckingham to Isperih | 1,399.66 mi (2,252.54 km) |
| Buckingham to Kardzhali | 1,424.76 mi (2,292.93 km) |
