| Houghton Regis to Cutrofiano | 1,206.19 mi (1,941.18 km) |
| Houghton Regis to Dalmine | 630.78 mi (1,015.14 km) |
| Houghton Regis to Deruta | 861.04 mi (1,385.70 km) |
| Houghton Regis to Desenzano del Garda | 671.14 mi (1,080.09 km) |
| Houghton Regis to Desio | 619.94 mi (997.70 km) |
| Houghton Regis to Dolianova | 982.03 mi (1,580.43 km) |
| Houghton Regis to Dolo | 726.91 mi (1,169.85 km) |
| Houghton Regis to Domodossola | 564.53 mi (908.52 km) |
| Houghton Regis to Dorgali | 934.66 mi (1,504.18 km) |
| Houghton Regis to Dueville | 698.54 mi (1,124.19 km) |
| Houghton Regis to Eboli | 1,073.64 mi (1,727.86 km) |
| Houghton Regis to Elmas | 986.35 mi (1,587.38 km) |
| Houghton Regis to Empoli | 775.07 mi (1,247.35 km) |
| Houghton Regis to Enna | 1,223.58 mi (1,969.16 km) |
| Houghton Regis to Eraclea | 741.72 mi (1,193.69 km) |
