| Llantrisant to Delhi (California) | 5,223.59 mi (8,406.55 km) |
| Llantrisant to Delray Beach (Florida) | 4,250.86 mi (6,841.09 km) |
| Llantrisant to Deltona (Florida) | 4,176.61 mi (6,721.61 km) |
| Llantrisant to Deming (New Mexico) | 5,064.31 mi (8,150.22 km) |
| Llantrisant to Denison (Texas) | 4,561.92 mi (7,341.70 km) |
| Llantrisant to Dent (Ohio) | 3,827.66 mi (6,160.03 km) |
| Llantrisant to Denton (Texas) | 4,611.76 mi (7,421.91 km) |
| Llantrisant to Dentsville (South Carolina) | 3,915.15 mi (6,300.82 km) |
| Llantrisant to Denver (Colorado) | 4,565.41 mi (7,347.31 km) |
| Llantrisant to Depew (New York) | 3,424.89 mi (5,511.83 km) |
| Llantrisant to Derby (Connecticut) | 3,263.21 mi (5,251.63 km) |
| Llantrisant to Derby (Kansas) | 4,397.34 mi (7,076.84 km) |
| Llantrisant to Des Moines (Iowa) | 4,064.18 mi (6,540.67 km) |
| Llantrisant to Des Moines (Washington) | 4,706.96 mi (7,575.13 km) |
| Llantrisant to Des Plaines (Illinois) | 3,825.14 mi (6,155.97 km) |
