| Swansea to Dixon (California) | 1,712.95 mi (2,756.72 km) |
| Swansea to Dixon (Illinois) | 229.10 mi (368.70 km) |
| Swansea to Dobbs Ferry (New York) | 871.13 mi (1,401.95 km) |
| Swansea to Doctor Phillips (Florida) | 851.62 mi (1,370.55 km) |
| Swansea to Dodge City (Kansas) | 547.51 mi (881.13 km) |
| Swansea to Dolton (Illinois) | 247.26 mi (397.93 km) |
| Swansea to Donna (Texas) | 976.92 mi (1,572.20 km) |
| Swansea to Dorado (Puerto Rico) | 1,987.85 mi (3,199.13 km) |
| Swansea to Doral (Florida) | 1,043.21 mi (1,678.89 km) |
| Swansea to Doraville (Georgia) | 451.89 mi (727.24 km) |
| Swansea to Dothan (Alabama) | 568.06 mi (914.20 km) |
| Swansea to Douglas (Arizona) | 1,210.38 mi (1,947.92 km) |
| Swansea to Douglas (Georgia) | 631.75 mi (1,016.70 km) |
| Swansea to Douglasville (Georgia) | 444.07 mi (714.67 km) |
| Swansea to Dover (Delaware) | 778.63 mi (1,253.09 km) |
