| Welwyn Garden City to Poggibonsi | 779.83 mi (1,255.02 km) |
| Welwyn Garden City to Poggio a Caiano | 758.39 mi (1,220.52 km) |
| Welwyn Garden City to Poggio Renatico | 722.90 mi (1,163.40 km) |
| Welwyn Garden City to Poggiomarino | 1,032.26 mi (1,661.26 km) |
| Welwyn Garden City to Poirino | 601.36 mi (967.80 km) |
| Welwyn Garden City to Policoro | 1,133.98 mi (1,824.96 km) |
| Welwyn Garden City to Polistena | 1,213.71 mi (1,953.28 km) |
| Welwyn Garden City to Pomezia | 920.33 mi (1,481.13 km) |
| Welwyn Garden City to Pomigliano d'Arco | 1,021.09 mi (1,643.28 km) |
| Welwyn Garden City to Pompei | 1,033.41 mi (1,663.11 km) |
| Welwyn Garden City to Ponsacco | 755.71 mi (1,216.20 km) |
| Welwyn Garden City to Pontassieve | 772.42 mi (1,243.09 km) |
| Welwyn Garden City to Ponte Buggianese | 747.08 mi (1,202.31 km) |
| Welwyn Garden City to Ponte San Pietro | 612.76 mi (986.14 km) |
| Welwyn Garden City to Pontecorvo | 967.96 mi (1,557.78 km) |
