| Watford to Pombal | 901.52 mi (1,450.86 km) |
| Watford to Ponta Delgada | 1,556.56 mi (2,505.04 km) |
| Watford to Ponta do Sol | 1,557.31 mi (2,506.25 km) |
| Watford to Ponte da Barca | 778.63 mi (1,253.09 km) |
| Watford to Ponte de Lima | 784.14 mi (1,261.95 km) |
| Watford to Ponte de Sor | 932.08 mi (1,500.04 km) |
| Watford to Portalegre | 916.79 mi (1,475.43 km) |
| Watford to Portimao | 1,079.03 mi (1,736.54 km) |
| Watford to Porto | 822.93 mi (1,324.37 km) |
| Watford to Porto de Mos | 925.45 mi (1,489.37 km) |
| Watford to Povoa de Lanhoso | 789.77 mi (1,271.01 km) |
| Watford to Povoa de Santa Iria | 977.78 mi (1,573.59 km) |
| Watford to Povoa de Varzim | 812.53 mi (1,307.63 km) |
| Watford to Praia da Vitoria | 1,561.78 mi (2,513.45 km) |
| Watford to Praia do Carvoeiro | 1,078.74 mi (1,736.06 km) |
