| Drogheda to Devnya | 1,693.69 mi (2,725.74 km) |
| Drogheda to Dimitrovgrad | 1,665.83 mi (2,680.89 km) |
| Drogheda to Dobrich | 1,689.87 mi (2,719.59 km) |
| Drogheda to Dospat | 1,627.78 mi (2,619.66 km) |
| Drogheda to Dupnitsa | 1,559.26 mi (2,509.38 km) |
| Drogheda to Elhovo | 1,698.83 mi (2,734.00 km) |
| Drogheda to Etropole | 1,568.47 mi (2,524.20 km) |
| Drogheda to Gabrovo | 1,619.58 mi (2,606.46 km) |
| Drogheda to Gorna Oryahovitsa | 1,622.70 mi (2,611.49 km) |
| Drogheda to Gotse Delchev | 1,614.80 mi (2,598.77 km) |
| Drogheda to Harmanli | 1,682.81 mi (2,708.22 km) |
| Drogheda to Haskovo | 1,669.70 mi (2,687.13 km) |
| Drogheda to Ihtiman | 1,578.72 mi (2,540.70 km) |
| Drogheda to Isperih | 1,643.54 mi (2,645.02 km) |
| Drogheda to Kardzhali | 1,674.56 mi (2,694.94 km) |
