| Houghton Regis to Montana | 1,243.42 mi (2,001.09 km) |
| Houghton Regis to Nova Zagora | 1,394.49 mi (2,244.21 km) |
| Houghton Regis to Novi Iskar | 1,273.94 mi (2,050.20 km) |
| Houghton Regis to Novi Pazar | 1,408.53 mi (2,266.81 km) |
| Houghton Regis to Omurtag | 1,386.12 mi (2,230.74 km) |
| Houghton Regis to Panagyurishte | 1,320.08 mi (2,124.46 km) |
| Houghton Regis to Parvomay | 1,378.68 mi (2,218.78 km) |
| Houghton Regis to Pavlikeni | 1,335.47 mi (2,149.23 km) |
| Houghton Regis to Pazardzhik | 1,338.94 mi (2,154.81 km) |
| Houghton Regis to Pernik | 1,269.85 mi (2,043.62 km) |
| Houghton Regis to Peshtera | 1,344.82 mi (2,164.28 km) |
| Houghton Regis to Petrich | 1,330.03 mi (2,140.48 km) |
| Houghton Regis to Pleven | 1,300.17 mi (2,092.43 km) |
| Houghton Regis to Plovdiv | 1,357.78 mi (2,185.14 km) |
| Houghton Regis to Pomorie | 1,456.92 mi (2,344.68 km) |
