| Houghton Regis to Ianca | 1,353.90 mi (2,178.89 km) |
| Houghton Regis to Iasi | 1,293.62 mi (2,081.88 km) |
| Houghton Regis to Iernut | 1,173.17 mi (1,888.04 km) |
| Houghton Regis to Ineu | 1,073.59 mi (1,727.77 km) |
| Houghton Regis to Jibou | 1,106.42 mi (1,780.62 km) |
| Houghton Regis to Jilava | 1,324.38 mi (2,131.38 km) |
| Houghton Regis to Jimbolia | 1,049.94 mi (1,689.71 km) |
| Houghton Regis to Liesti | 1,340.16 mi (2,156.77 km) |
| Houghton Regis to Lipova | 1,078.86 mi (1,736.26 km) |
| Houghton Regis to Liteni | 1,238.33 mi (1,992.90 km) |
| Houghton Regis to Ludus | 1,166.62 mi (1,877.49 km) |
| Houghton Regis to Lugoj | 1,102.08 mi (1,773.63 km) |
| Houghton Regis to Lupeni | 1,168.79 mi (1,880.99 km) |
| Houghton Regis to Magurele | 1,321.74 mi (2,127.14 km) |
| Houghton Regis to Mangalia | 1,448.16 mi (2,330.59 km) |
