| Houghton Regis to Nowy Dwor Mazowiecki | 897.66 mi (1,444.64 km) |
| Houghton Regis to Nowy Sacz | 937.26 mi (1,508.37 km) |
| Houghton Regis to Nowy Targ | 911.64 mi (1,467.15 km) |
| Houghton Regis to Nowy Tomysl | 705.86 mi (1,135.98 km) |
| Houghton Regis to Nysa | 777.68 mi (1,251.56 km) |
| Houghton Regis to Oborniki | 733.13 mi (1,179.85 km) |
| Houghton Regis to Oborniki Slaskie | 747.25 mi (1,202.58 km) |
| Houghton Regis to Olawa | 769.02 mi (1,237.61 km) |
| Houghton Regis to Olecko | 964.90 mi (1,552.86 km) |
| Houghton Regis to Olesnica | 768.96 mi (1,237.52 km) |
| Houghton Regis to Olesno | 817.43 mi (1,315.53 km) |
| Houghton Regis to Olkusz | 876.12 mi (1,409.97 km) |
| Houghton Regis to Olsztyn | 882.76 mi (1,420.67 km) |
| Houghton Regis to Opalenica | 717.72 mi (1,155.05 km) |
| Houghton Regis to Opoczno | 890.07 mi (1,432.44 km) |
