| Caerfyrddin to Dillenburg | 549.14 mi (883.76 km) |
| Caerfyrddin to Dillingen | 690.56 mi (1,111.35 km) |
| Caerfyrddin to Dillingen | 513.93 mi (827.09 km) |
| Caerfyrddin to Dingolfing | 773.66 mi (1,245.09 km) |
| Caerfyrddin to Dinkelsbuhl | 670.53 mi (1,079.11 km) |
| Caerfyrddin to Dinklage | 528.77 mi (850.98 km) |
| Caerfyrddin to Dinslaken | 473.01 mi (761.23 km) |
| Caerfyrddin to Dippoldiswalde | 776.44 mi (1,249.57 km) |
| Caerfyrddin to Ditzingen | 625.06 mi (1,005.93 km) |
| Caerfyrddin to Dobeln | 749.77 mi (1,206.63 km) |
| Caerfyrddin to Doberlug-Kirchhain | 763.42 mi (1,228.61 km) |
| Caerfyrddin to Donaueschingen | 629.84 mi (1,013.63 km) |
| Caerfyrddin to Donauworth | 700.64 mi (1,127.58 km) |
| Caerfyrddin to Donzdorf | 660.23 mi (1,062.54 km) |
| Caerfyrddin to Dorfen | 769.32 mi (1,238.09 km) |
