| Welwyn Garden City to Pontedera | 753.20 mi (1,212.16 km) |
| Welwyn Garden City to Pontinia | 951.47 mi (1,531.24 km) |
| Welwyn Garden City to Porcari | 742.97 mi (1,195.69 km) |
| Welwyn Garden City to Porcia | 706.57 mi (1,137.12 km) |
| Welwyn Garden City to Pordenone | 708.54 mi (1,140.29 km) |
| Welwyn Garden City to Portici | 1,024.53 mi (1,648.83 km) |
| Welwyn Garden City to Porto Empedocle | 1,204.61 mi (1,938.64 km) |
| Welwyn Garden City to Porto Recanati | 864.16 mi (1,390.74 km) |
| Welwyn Garden City to Porto Sant'Elpidio | 875.45 mi (1,408.90 km) |
| Welwyn Garden City to Porto Tolle | 742.56 mi (1,195.03 km) |
| Welwyn Garden City to Porto Torres | 860.37 mi (1,384.63 km) |
| Welwyn Garden City to Portoferraio | 790.93 mi (1,272.88 km) |
| Welwyn Garden City to Portogruaro | 722.68 mi (1,163.04 km) |
| Welwyn Garden City to Portomaggiore | 736.90 mi (1,185.92 km) |
| Welwyn Garden City to Potenza | 1,081.94 mi (1,741.21 km) |
