| Watford to Poyo | 745.66 mi (1,200.03 km) |
| Watford to Pozoblanco | 941.98 mi (1,515.97 km) |
| Watford to Premia de Mar | 714.17 mi (1,149.34 km) |
| Watford to Priego de Cordoba | 999.82 mi (1,609.05 km) |
| Watford to Puente-Genil | 1,008.85 mi (1,623.58 km) |
| Watford to Puenteareas | 757.95 mi (1,219.81 km) |
| Watford to Puerto de la Cruz | 1,809.62 mi (2,912.31 km) |
| Watford to Puerto del Rosario | 1,744.70 mi (2,807.83 km) |
| Watford to Puerto Real | 1,083.08 mi (1,743.06 km) |
| Watford to Puertollano | 914.09 mi (1,471.08 km) |
| Watford to Puigcerda | 646.50 mi (1,040.45 km) |
| Watford to Pulpi | 987.01 mi (1,588.44 km) |
| Watford to Puzol | 831.78 mi (1,338.62 km) |
| Watford to Quintanar de la Orden | 843.18 mi (1,356.96 km) |
| Watford to Rafelbunol | 833.46 mi (1,341.33 km) |
