| Houghton Regis to Acqui Terme | 647.34 mi (1,041.79 km) |
| Houghton Regis to Acri | 1,177.65 mi (1,895.24 km) |
| Houghton Regis to Adelfia | 1,114.11 mi (1,792.99 km) |
| Houghton Regis to Adrano | 1,233.53 mi (1,985.18 km) |
| Houghton Regis to Adria | 743.87 mi (1,197.14 km) |
| Houghton Regis to Afragola | 1,033.49 mi (1,663.24 km) |
| Houghton Regis to Agliana | 766.88 mi (1,234.17 km) |
| Houghton Regis to Agrate Brianza | 625.98 mi (1,007.41 km) |
| Houghton Regis to Agrigento | 1,218.99 mi (1,961.77 km) |
| Houghton Regis to Agropoli | 1,085.84 mi (1,747.49 km) |
| Houghton Regis to Ala | 673.62 mi (1,084.09 km) |
| Houghton Regis to Alassio | 677.22 mi (1,089.87 km) |
| Houghton Regis to Alatri | 958.34 mi (1,542.30 km) |
| Houghton Regis to Alba | 633.50 mi (1,019.52 km) |
| Houghton Regis to Albano Laziale | 936.70 mi (1,507.47 km) |
