| Colwyn Bay to Dendermonde | 365.26 mi (587.83 km) |
| Colwyn Bay to Dessel | 398.68 mi (641.62 km) |
| Colwyn Bay to Destelbergen | 353.27 mi (568.53 km) |
| Colwyn Bay to Deurne | 373.28 mi (600.73 km) |
| Colwyn Bay to Diepenbeek | 420.16 mi (676.19 km) |
| Colwyn Bay to Diest | 403.52 mi (649.40 km) |
| Colwyn Bay to Diksmuide | 318.85 mi (513.14 km) |
| Colwyn Bay to Dilbeek | 377.68 mi (607.82 km) |
| Colwyn Bay to Dinant | 423.05 mi (680.84 km) |
| Colwyn Bay to Dison | 446.18 mi (718.06 km) |
| Colwyn Bay to Dour | 376.40 mi (605.76 km) |
| Colwyn Bay to Drongen | 348.21 mi (560.38 km) |
| Colwyn Bay to Duffel | 379.18 mi (610.24 km) |
| Colwyn Bay to Durbuy | 440.14 mi (708.33 km) |
| Colwyn Bay to Ecaussinnes-Lalaing | 384.69 mi (619.09 km) |
