| Prudhoe to Devnya | 1,541.68 mi (2,481.09 km) |
| Prudhoe to Dimitrovgrad | 1,524.92 mi (2,454.12 km) |
| Prudhoe to Dobrich | 1,535.61 mi (2,471.32 km) |
| Prudhoe to Dospat | 1,493.61 mi (2,403.73 km) |
| Prudhoe to Dupnitsa | 1,425.75 mi (2,294.53 km) |
| Prudhoe to Elhovo | 1,554.38 mi (2,501.53 km) |
| Prudhoe to Etropole | 1,428.98 mi (2,299.72 km) |
| Prudhoe to Gabrovo | 1,475.63 mi (2,374.79 km) |
| Prudhoe to Gorna Oryahovitsa | 1,476.35 mi (2,375.96 km) |
| Prudhoe to Gotse Delchev | 1,482.59 mi (2,385.99 km) |
| Prudhoe to Harmanli | 1,541.49 mi (2,480.79 km) |
| Prudhoe to Haskovo | 1,529.45 mi (2,461.41 km) |
| Prudhoe to Ihtiman | 1,441.86 mi (2,320.44 km) |
| Prudhoe to Isperih | 1,491.23 mi (2,399.91 km) |
| Prudhoe to Kardzhali | 1,536.28 mi (2,472.41 km) |
