| Swansea to Des Plaines (Illinois) | 264.58 mi (425.80 km) |
| Swansea to Desert Hot Springs (California) | 1,507.78 mi (2,426.54 km) |
| Swansea to DeSoto (Texas) | 563.98 mi (907.64 km) |
| Swansea to Destin (Florida) | 597.89 mi (962.21 km) |
| Swansea to Destrehan (Louisiana) | 593.78 mi (955.59 km) |
| Swansea to Detroit (Michigan) | 448.13 mi (721.20 km) |
| Swansea to Diamond Bar (California) | 1,575.43 mi (2,535.41 km) |
| Swansea to Diamond Springs (California) | 1,657.57 mi (2,667.61 km) |
| Swansea to Dickinson (North Dakota) | 866.75 mi (1,394.90 km) |
| Swansea to Dickinson (Texas) | 692.08 mi (1,113.79 km) |
| Swansea to Dickson (Tennessee) | 224.14 mi (360.72 km) |
| Swansea to Difficult Run (Virginia) | 681.15 mi (1,096.20 km) |
| Swansea to Dinuba (California) | 1,610.31 mi (2,591.55 km) |
| Swansea to Discovery Bay (California) | 1,707.92 mi (2,748.63 km) |
| Swansea to Dix Hills (New York) | 897.47 mi (1,444.34 km) |
