| Letchworth to Pombal | 924.47 mi (1,487.79 km) |
| Letchworth to Ponta Delgada | 1,573.41 mi (2,532.16 km) |
| Letchworth to Ponta do Sol | 1,579.10 mi (2,541.31 km) |
| Letchworth to Ponte da Barca | 801.31 mi (1,289.58 km) |
| Letchworth to Ponte de Lima | 806.77 mi (1,298.37 km) |
| Letchworth to Ponte de Sor | 955.24 mi (1,537.31 km) |
| Letchworth to Portalegre | 940.04 mi (1,512.85 km) |
| Letchworth to Portimao | 1,102.26 mi (1,773.92 km) |
| Letchworth to Porto | 845.67 mi (1,360.97 km) |
| Letchworth to Porto de Mos | 948.40 mi (1,526.29 km) |
| Letchworth to Povoa de Lanhoso | 812.54 mi (1,307.66 km) |
| Letchworth to Povoa de Santa Iria | 1,000.76 mi (1,610.57 km) |
| Letchworth to Povoa de Varzim | 835.18 mi (1,344.09 km) |
| Letchworth to Praia da Vitoria | 1,577.51 mi (2,538.75 km) |
| Letchworth to Praia do Carvoeiro | 1,101.98 mi (1,773.46 km) |
