| Darwen to Devnya | 1,538.74 mi (2,476.36 km) |
| Darwen to Dimitrovgrad | 1,514.30 mi (2,437.03 km) |
| Darwen to Dobrich | 1,534.31 mi (2,469.24 km) |
| Darwen to Dospat | 1,478.63 mi (2,379.62 km) |
| Darwen to Dupnitsa | 1,410.27 mi (2,269.61 km) |
| Darwen to Elhovo | 1,546.16 mi (2,488.30 km) |
| Darwen to Etropole | 1,417.33 mi (2,280.97 km) |
| Darwen to Gabrovo | 1,467.00 mi (2,360.90 km) |
| Darwen to Gorna Oryahovitsa | 1,469.36 mi (2,364.71 km) |
| Darwen to Gotse Delchev | 1,466.37 mi (2,359.90 km) |
| Darwen to Harmanli | 1,531.16 mi (2,464.17 km) |
| Darwen to Haskovo | 1,518.41 mi (2,443.64 km) |
| Darwen to Ihtiman | 1,428.52 mi (2,298.98 km) |
| Darwen to Isperih | 1,488.47 mi (2,395.46 km) |
| Darwen to Kardzhali | 1,523.96 mi (2,452.58 km) |
