| Watford to Palencia | 693.77 mi (1,116.52 km) |
| Watford to Palleja | 715.87 mi (1,152.08 km) |
| Watford to Palma | 847.90 mi (1,364.56 km) |
| Watford to Palma del Rio | 993.07 mi (1,598.20 km) |
| Watford to Palomares del Rio | 1,028.36 mi (1,654.98 km) |
| Watford to Palos de la Frontera | 1,046.03 mi (1,683.43 km) |
| Watford to Pamplona | 613.47 mi (987.29 km) |
| Watford to Paracuellos de Jarama | 781.52 mi (1,257.74 km) |
| Watford to Parla | 805.19 mi (1,295.82 km) |
| Watford to Paterna | 839.64 mi (1,351.27 km) |
| Watford to Peligros | 1,008.90 mi (1,623.66 km) |
| Watford to Penarroya-Pueblonuevo | 952.41 mi (1,532.75 km) |
| Watford to Petrel | 910.59 mi (1,465.45 km) |
| Watford to Picana | 844.25 mi (1,358.68 km) |
| Watford to Picasent | 849.43 mi (1,367.03 km) |
