| Watford to Pandino | 626.58 mi (1,008.38 km) |
| Watford to Paola | 1,158.21 mi (1,863.95 km) |
| Watford to Parabiago | 598.83 mi (963.72 km) |
| Watford to Parabita | 1,192.92 mi (1,919.83 km) |
| Watford to Parma | 682.70 mi (1,098.70 km) |
| Watford to Partanna | 1,158.63 mi (1,864.63 km) |
| Watford to Partinico | 1,145.64 mi (1,843.72 km) |
| Watford to Pasian di Prato | 727.68 mi (1,171.08 km) |
| Watford to Paterno | 1,225.02 mi (1,971.48 km) |
| Watford to Patti | 1,193.81 mi (1,921.25 km) |
| Watford to Paullo | 620.80 mi (999.08 km) |
| Watford to Pavia | 624.81 mi (1,005.53 km) |
| Watford to Pavullo nel Frignano | 723.41 mi (1,164.21 km) |
| Watford to Pedara | 1,227.04 mi (1,974.73 km) |
| Watford to Pellezzano | 1,042.56 mi (1,677.84 km) |
