| Colwyn Bay to Deville-les-Rouen | 333.95 mi (537.45 km) |
| Colwyn Bay to Dieppe | 310.17 mi (499.17 km) |
| Colwyn Bay to Digne-les-Bains | 778.94 mi (1,253.58 km) |
| Colwyn Bay to Dijon | 563.41 mi (906.71 km) |
| Colwyn Bay to Dinan | 341.66 mi (549.84 km) |
| Colwyn Bay to Dinard | 329.58 mi (530.41 km) |
| Colwyn Bay to Divonne-les-Bains | 648.45 mi (1,043.57 km) |
| Colwyn Bay to Dole | 589.52 mi (948.75 km) |
| Colwyn Bay to Dombasle-sur-Meurthe | 542.50 mi (873.07 km) |
| Colwyn Bay to Domerat | 553.11 mi (890.15 km) |
| Colwyn Bay to Domont | 393.35 mi (633.03 km) |
| Colwyn Bay to Douai | 352.57 mi (567.41 km) |
| Colwyn Bay to Douarnenez | 360.19 mi (579.67 km) |
| Colwyn Bay to Douchy-les-Mines | 366.50 mi (589.82 km) |
| Colwyn Bay to Dourdan | 412.17 mi (663.33 km) |
