| Houghton Regis to Delhi (California) | 5,293.57 mi (8,519.17 km) |
| Houghton Regis to Delray Beach (Florida) | 4,367.78 mi (7,029.27 km) |
| Houghton Regis to Deltona (Florida) | 4,291.36 mi (6,906.28 km) |
| Houghton Regis to Deming (New Mexico) | 5,154.28 mi (8,295.02 km) |
| Houghton Regis to Denison (Texas) | 4,661.13 mi (7,501.37 km) |
| Houghton Regis to Dent (Ohio) | 3,931.13 mi (6,326.53 km) |
| Houghton Regis to Denton (Texas) | 4,711.00 mi (7,581.62 km) |
| Houghton Regis to Dentsville (South Carolina) | 4,026.18 mi (6,479.51 km) |
| Houghton Regis to Denver (Colorado) | 4,650.46 mi (7,484.19 km) |
| Houghton Regis to Depew (New York) | 3,528.47 mi (5,678.52 km) |
| Houghton Regis to Derby (Connecticut) | 3,372.47 mi (5,427.47 km) |
| Houghton Regis to Derby (Kansas) | 4,492.10 mi (7,229.34 km) |
| Houghton Regis to Des Moines (Iowa) | 4,157.63 mi (6,691.06 km) |
| Houghton Regis to Des Moines (Washington) | 4,764.06 mi (7,667.01 km) |
| Houghton Regis to Des Plaines (Illinois) | 3,922.80 mi (6,313.14 km) |
