| Gaithersburg to Pombal | 3,559.89 mi (5,729.08 km) |
| Gaithersburg to Ponta Delgada | 2,752.93 mi (4,430.41 km) |
| Gaithersburg to Ponta do Sol | 3,332.32 mi (5,362.86 km) |
| Gaithersburg to Ponte da Barca | 3,521.22 mi (5,666.86 km) |
| Gaithersburg to Ponte de Lima | 3,514.87 mi (5,656.63 km) |
| Gaithersburg to Ponte de Sor | 3,607.88 mi (5,806.32 km) |
| Gaithersburg to Portalegre | 3,635.46 mi (5,850.70 km) |
| Gaithersburg to Portimao | 3,641.62 mi (5,860.62 km) |
| Gaithersburg to Porto | 3,527.57 mi (5,677.08 km) |
| Gaithersburg to Porto de Mos | 3,559.03 mi (5,727.70 km) |
| Gaithersburg to Povoa de Lanhoso | 3,534.34 mi (5,687.97 km) |
| Gaithersburg to Povoa de Santa Iria | 3,566.69 mi (5,740.04 km) |
| Gaithersburg to Povoa de Varzim | 3,515.31 mi (5,657.34 km) |
| Gaithersburg to Praia da Vitoria | 2,659.82 mi (4,280.57 km) |
| Gaithersburg to Praia do Carvoeiro | 3,646.02 mi (5,867.71 km) |
