| Houghton Regis to Arcore | 622.34 mi (1,001.56 km) |
| Houghton Regis to Ardea | 939.56 mi (1,512.08 km) |
| Houghton Regis to Arenzano | 668.67 mi (1,076.11 km) |
| Houghton Regis to Arese | 618.56 mi (995.48 km) |
| Houghton Regis to Arezzo | 818.21 mi (1,316.78 km) |
| Houghton Regis to Argelato | 743.20 mi (1,196.07 km) |
| Houghton Regis to Argenta | 757.61 mi (1,219.26 km) |
| Houghton Regis to Ariano Irpino | 1,045.87 mi (1,683.16 km) |
| Houghton Regis to Ariccia | 937.61 mi (1,508.95 km) |
| Houghton Regis to Arluno | 616.93 mi (992.85 km) |
| Houghton Regis to Arona | 591.70 mi (952.25 km) |
| Houghton Regis to Artena | 944.48 mi (1,519.99 km) |
| Houghton Regis to Arzachena | 881.99 mi (1,419.43 km) |
| Houghton Regis to Arzano | 1,031.89 mi (1,660.67 km) |
| Houghton Regis to Arzignano | 696.40 mi (1,120.75 km) |
