| Houghton Regis to Poggibonsi | 794.80 mi (1,279.10 km) |
| Houghton Regis to Poggio a Caiano | 773.43 mi (1,244.71 km) |
| Houghton Regis to Poggio Renatico | 738.24 mi (1,188.08 km) |
| Houghton Regis to Poggiomarino | 1,047.34 mi (1,685.52 km) |
| Houghton Regis to Poirino | 615.77 mi (990.99 km) |
| Houghton Regis to Policoro | 1,149.27 mi (1,849.57 km) |
| Houghton Regis to Polistena | 1,228.65 mi (1,977.32 km) |
| Houghton Regis to Pomezia | 935.17 mi (1,505.01 km) |
| Houghton Regis to Pomigliano d'Arco | 1,036.16 mi (1,667.54 km) |
| Houghton Regis to Pompei | 1,048.47 mi (1,687.34 km) |
| Houghton Regis to Ponsacco | 770.59 mi (1,240.14 km) |
| Houghton Regis to Pontassieve | 787.52 mi (1,267.39 km) |
| Houghton Regis to Ponte Buggianese | 762.04 mi (1,226.39 km) |
| Houghton Regis to Ponte San Pietro | 627.98 mi (1,010.63 km) |
| Houghton Regis to Pontecorvo | 983.00 mi (1,581.98 km) |
