| Holyhead to Dillenburg | 576.34 mi (927.53 km) |
| Holyhead to Dillingen | 732.61 mi (1,179.02 km) |
| Holyhead to Dillingen | 560.89 mi (902.66 km) |
| Holyhead to Dingolfing | 809.83 mi (1,303.30 km) |
| Holyhead to Dinkelsbuhl | 708.85 mi (1,140.79 km) |
| Holyhead to Dinklage | 532.12 mi (856.37 km) |
| Holyhead to Dinslaken | 493.07 mi (793.52 km) |
| Holyhead to Dippoldiswalde | 792.06 mi (1,274.69 km) |
| Holyhead to Ditzingen | 669.11 mi (1,076.82 km) |
| Holyhead to Dobeln | 764.22 mi (1,229.90 km) |
| Holyhead to Doberlug-Kirchhain | 772.85 mi (1,243.78 km) |
| Holyhead to Donaueschingen | 682.80 mi (1,098.86 km) |
| Holyhead to Donauworth | 740.70 mi (1,192.04 km) |
| Holyhead to Donzdorf | 703.22 mi (1,131.72 km) |
| Holyhead to Dorfen | 809.06 mi (1,302.05 km) |
