| Pontneddfechan to Dover (New Jersey) | 3,329.67 mi (5,358.59 km) |
| Pontneddfechan to Dover (Ohio) | 3,625.91 mi (5,835.34 km) |
| Pontneddfechan to Downers Grove (Illinois) | 3,825.94 mi (6,157.25 km) |
| Pontneddfechan to Downey (California) | 5,319.40 mi (8,560.74 km) |
| Pontneddfechan to Dranesville (Virginia) | 3,527.55 mi (5,677.04 km) |
| Pontneddfechan to Draper (Utah) | 4,750.24 mi (7,644.77 km) |
| Pontneddfechan to Drexel Heights (Arizona) | 5,174.64 mi (8,327.78 km) |
| Pontneddfechan to Drexel Hill (Pennsylvania) | 3,400.66 mi (5,472.84 km) |
| Pontneddfechan to Duarte (California) | 5,300.84 mi (8,530.88 km) |
| Pontneddfechan to Dublin (California) | 5,225.30 mi (8,409.30 km) |
| Pontneddfechan to Dublin (Georgia) | 4,058.50 mi (6,531.52 km) |
| Pontneddfechan to Dublin (Ohio) | 3,711.34 mi (5,972.83 km) |
| Pontneddfechan to Dubuque (Iowa) | 3,896.20 mi (6,270.33 km) |
| Pontneddfechan to Duluth (Georgia) | 4,037.82 mi (6,498.24 km) |
| Pontneddfechan to Duluth (Minnesota) | 3,754.40 mi (6,042.12 km) |
