| Boucau to Devnya | 1,451.93 mi (2,336.65 km) |
| Boucau to Dimitrovgrad | 1,371.16 mi (2,206.67 km) |
| Boucau to Dobrich | 1,460.68 mi (2,350.74 km) |
| Boucau to Dospat | 1,306.18 mi (2,102.09 km) |
| Boucau to Dupnitsa | 1,243.96 mi (2,001.96 km) |
| Boucau to Elhovo | 1,417.50 mi (2,281.24 km) |
| Boucau to Etropole | 1,279.99 mi (2,059.95 km) |
| Boucau to Gabrovo | 1,345.85 mi (2,165.93 km) |
| Boucau to Gorna Oryahovitsa | 1,360.58 mi (2,189.64 km) |
| Boucau to Gotse Delchev | 1,285.93 mi (2,069.50 km) |
| Boucau to Harmanli | 1,388.03 mi (2,233.82 km) |
| Boucau to Haskovo | 1,371.39 mi (2,207.05 km) |
| Boucau to Ihtiman | 1,276.28 mi (2,053.97 km) |
| Boucau to Isperih | 1,409.65 mi (2,268.61 km) |
| Boucau to Kardzhali | 1,366.18 mi (2,198.66 km) |
