| Leighton Buzzard to Curtea de Arges | 1,242.52 mi (1,999.64 km) |
| Leighton Buzzard to Dabuleni | 1,268.74 mi (2,041.84 km) |
| Leighton Buzzard to Darabani | 1,228.44 mi (1,976.99 km) |
| Leighton Buzzard to Darmanesti | 1,276.61 mi (2,054.51 km) |
| Leighton Buzzard to Dej | 1,141.20 mi (1,836.59 km) |
| Leighton Buzzard to Deva | 1,142.98 mi (1,839.46 km) |
| Leighton Buzzard to Dolhasca | 1,250.07 mi (2,011.79 km) |
| Leighton Buzzard to Dorohoi | 1,226.41 mi (1,973.71 km) |
| Leighton Buzzard to Draganesti-Olt | 1,272.35 mi (2,047.64 km) |
| Leighton Buzzard to Dragasani | 1,242.62 mi (1,999.80 km) |
| Leighton Buzzard to Drobeta-Turnu Severin | 1,177.36 mi (1,894.78 km) |
| Leighton Buzzard to Fagaras | 1,230.32 mi (1,980.01 km) |
| Leighton Buzzard to Falticeni | 1,236.07 mi (1,989.25 km) |
| Leighton Buzzard to Fetesti | 1,400.13 mi (2,253.29 km) |
| Leighton Buzzard to Filiasi | 1,221.97 mi (1,966.57 km) |
