| Northolt to Pontedera | 746.41 mi (1,201.23 km) |
| Northolt to Pontinia | 944.71 mi (1,520.37 km) |
| Northolt to Porcari | 736.35 mi (1,185.05 km) |
| Northolt to Porcia | 704.53 mi (1,133.84 km) |
| Northolt to Pordenone | 706.50 mi (1,137.01 km) |
| Northolt to Portici | 1,018.32 mi (1,638.83 km) |
| Northolt to Porto Empedocle | 1,195.60 mi (1,924.13 km) |
| Northolt to Porto Recanati | 859.79 mi (1,383.70 km) |
| Northolt to Porto Sant'Elpidio | 870.98 mi (1,401.70 km) |
| Northolt to Porto Tolle | 738.84 mi (1,189.05 km) |
| Northolt to Porto Torres | 849.24 mi (1,366.72 km) |
| Northolt to Portoferraio | 783.01 mi (1,260.14 km) |
| Northolt to Portogruaro | 720.55 mi (1,159.61 km) |
| Northolt to Portomaggiore | 732.40 mi (1,178.69 km) |
| Northolt to Potenza | 1,076.65 mi (1,732.70 km) |
