| Holyhead to Curtea de Arges | 1,425.24 mi (2,293.71 km) |
| Holyhead to Dabuleni | 1,455.23 mi (2,341.97 km) |
| Holyhead to Darabani | 1,397.79 mi (2,249.53 km) |
| Holyhead to Darmanesti | 1,453.27 mi (2,338.82 km) |
| Holyhead to Dej | 1,318.85 mi (2,122.48 km) |
| Holyhead to Deva | 1,325.80 mi (2,133.67 km) |
| Holyhead to Dolhasca | 1,422.60 mi (2,289.45 km) |
| Holyhead to Dorohoi | 1,397.01 mi (2,248.27 km) |
| Holyhead to Draganesti-Olt | 1,457.60 mi (2,345.78 km) |
| Holyhead to Dragasani | 1,427.05 mi (2,296.61 km) |
| Holyhead to Drobeta-Turnu Severin | 1,363.65 mi (2,194.58 km) |
| Holyhead to Fagaras | 1,410.65 mi (2,270.22 km) |
| Holyhead to Falticeni | 1,408.89 mi (2,267.39 km) |
| Holyhead to Fetesti | 1,580.96 mi (2,544.31 km) |
| Holyhead to Filiasi | 1,407.82 mi (2,265.67 km) |
