| Swansea to Deville-les-Rouen | 4,306.08 mi (6,929.97 km) |
| Swansea to Dieppe | 4,292.72 mi (6,908.46 km) |
| Swansea to Digne-les-Bains | 4,706.19 mi (7,573.88 km) |
| Swansea to Dijon | 4,537.78 mi (7,302.85 km) |
| Swansea to Dinan | 4,213.29 mi (6,780.64 km) |
| Swansea to Dinard | 4,207.35 mi (6,771.08 km) |
| Swansea to Divonne-les-Bains | 4,617.94 mi (7,431.85 km) |
| Swansea to Dole | 4,564.81 mi (7,346.36 km) |
| Swansea to Dombasle-sur-Meurthe | 4,543.35 mi (7,311.82 km) |
| Swansea to Domerat | 4,470.68 mi (7,194.87 km) |
| Swansea to Domont | 4,371.27 mi (7,034.88 km) |
| Swansea to Douai | 4,355.89 mi (7,010.12 km) |
| Swansea to Douarnenez | 4,130.16 mi (6,646.85 km) |
| Swansea to Douchy-les-Mines | 4,370.32 mi (7,033.35 km) |
| Swansea to Dourdan | 4,375.38 mi (7,041.49 km) |
