| Mercer Island to Pombal | 5,151.03 mi (8,289.79 km) |
| Mercer Island to Ponta Delgada | 4,629.07 mi (7,449.78 km) |
| Mercer Island to Ponta do Sol | 5,216.85 mi (8,395.71 km) |
| Mercer Island to Ponte da Barca | 5,058.46 mi (8,140.80 km) |
| Mercer Island to Ponte de Lima | 5,055.23 mi (8,135.61 km) |
| Mercer Island to Ponte de Sor | 5,207.24 mi (8,380.24 km) |
| Mercer Island to Portalegre | 5,224.03 mi (8,407.26 km) |
| Mercer Island to Portimao | 5,301.99 mi (8,532.73 km) |
| Mercer Island to Porto | 5,085.30 mi (8,184.00 km) |
| Mercer Island to Porto de Mos | 5,161.24 mi (8,306.21 km) |
| Mercer Island to Povoa de Lanhoso | 5,075.77 mi (8,168.67 km) |
| Mercer Island to Povoa de Santa Iria | 5,191.79 mi (8,355.38 km) |
| Mercer Island to Povoa de Varzim | 5,069.15 mi (8,158.01 km) |
| Mercer Island to Praia da Vitoria | 4,526.83 mi (7,285.23 km) |
| Mercer Island to Praia do Carvoeiro | 5,305.63 mi (8,538.58 km) |
