| Potomac to Pombal | 3,562.38 mi (5,733.10 km) |
| Potomac to Ponta Delgada | 2,754.10 mi (4,432.30 km) |
| Potomac to Ponta do Sol | 3,333.06 mi (5,364.05 km) |
| Potomac to Ponte da Barca | 3,524.04 mi (5,671.40 km) |
| Potomac to Ponte de Lima | 3,517.68 mi (5,661.15 km) |
| Potomac to Ponte de Sor | 3,610.30 mi (5,810.22 km) |
| Potomac to Portalegre | 3,637.92 mi (5,854.67 km) |
| Potomac to Portimao | 3,643.67 mi (5,863.92 km) |
| Potomac to Porto | 3,530.28 mi (5,681.43 km) |
| Potomac to Porto de Mos | 3,561.47 mi (5,731.62 km) |
| Potomac to Povoa de Lanhoso | 3,537.13 mi (5,692.46 km) |
| Potomac to Povoa de Santa Iria | 3,569.00 mi (5,743.74 km) |
| Potomac to Povoa de Varzim | 3,518.04 mi (5,661.74 km) |
| Potomac to Praia da Vitoria | 2,661.13 mi (4,282.68 km) |
| Potomac to Praia do Carvoeiro | 3,648.08 mi (5,871.01 km) |
