| Irthlingborough to Curtea de Arges | 1,246.74 mi (2,006.44 km) |
| Irthlingborough to Dabuleni | 1,275.05 mi (2,051.99 km) |
| Irthlingborough to Darabani | 1,227.37 mi (1,975.26 km) |
| Irthlingborough to Darmanesti | 1,278.19 mi (2,057.04 km) |
| Irthlingborough to Dej | 1,143.12 mi (1,839.67 km) |
| Irthlingborough to Deva | 1,147.22 mi (1,846.28 km) |
| Irthlingborough to Dolhasca | 1,250.09 mi (2,011.82 km) |
| Irthlingborough to Dorohoi | 1,225.75 mi (1,972.66 km) |
| Irthlingborough to Draganesti-Olt | 1,277.92 mi (2,056.61 km) |
| Irthlingborough to Dragasani | 1,247.73 mi (2,008.02 km) |
| Irthlingborough to Drobeta-Turnu Severin | 1,183.52 mi (1,904.70 km) |
| Irthlingborough to Fagaras | 1,233.41 mi (1,984.99 km) |
| Irthlingborough to Falticeni | 1,236.19 mi (1,989.45 km) |
| Irthlingborough to Fetesti | 1,403.50 mi (2,258.71 km) |
| Irthlingborough to Filiasi | 1,227.88 mi (1,976.08 km) |
