| Harpenden to Pombal | 912.24 mi (1,468.11 km) |
| Harpenden to Ponta Delgada | 1,563.52 mi (2,516.25 km) |
| Harpenden to Ponta do Sol | 1,567.19 mi (2,522.16 km) |
| Harpenden to Ponte da Barca | 789.13 mi (1,269.99 km) |
| Harpenden to Ponte de Lima | 794.60 mi (1,278.79 km) |
| Harpenden to Ponte de Sor | 942.98 mi (1,517.58 km) |
| Harpenden to Portalegre | 927.79 mi (1,493.13 km) |
| Harpenden to Portimao | 1,090.01 mi (1,754.20 km) |
| Harpenden to Porto | 833.48 mi (1,341.36 km) |
| Harpenden to Porto de Mos | 936.17 mi (1,506.61 km) |
| Harpenden to Povoa de Lanhoso | 800.35 mi (1,288.03 km) |
| Harpenden to Povoa de Santa Iria | 988.53 mi (1,590.88 km) |
| Harpenden to Povoa de Varzim | 823.01 mi (1,324.51 km) |
| Harpenden to Praia da Vitoria | 1,568.12 mi (2,523.65 km) |
| Harpenden to Praia do Carvoeiro | 1,089.72 mi (1,753.74 km) |
