| Adra to Devnya | 1,669.32 mi (2,686.51 km) |
| Adra to Dimitrovgrad | 1,563.25 mi (2,515.80 km) |
| Adra to Dobrich | 1,684.91 mi (2,711.60 km) |
| Adra to Dospat | 1,487.70 mi (2,394.22 km) |
| Adra to Dupnitsa | 1,438.07 mi (2,314.35 km) |
| Adra to Elhovo | 1,613.22 mi (2,596.23 km) |
| Adra to Etropole | 1,487.37 mi (2,393.69 km) |
| Adra to Gabrovo | 1,554.71 mi (2,502.07 km) |
| Adra to Gorna Oryahovitsa | 1,575.16 mi (2,534.98 km) |
| Adra to Gotse Delchev | 1,464.94 mi (2,357.60 km) |
| Adra to Harmanli | 1,578.09 mi (2,539.70 km) |
| Adra to Haskovo | 1,561.00 mi (2,512.18 km) |
| Adra to Ihtiman | 1,474.83 mi (2,373.51 km) |
| Adra to Isperih | 1,636.33 mi (2,633.42 km) |
| Adra to Kardzhali | 1,549.52 mi (2,493.71 km) |
