| Mercer Island to Alenquer | 5,183.63 mi (8,342.25 km) |
| Mercer Island to Alfena | 5,084.53 mi (8,182.75 km) |
| Mercer Island to Alijo | 5,117.46 mi (8,235.75 km) |
| Mercer Island to Aljustrel | 5,273.26 mi (8,486.49 km) |
| Mercer Island to Almada | 5,198.33 mi (8,365.90 km) |
| Mercer Island to Almargem | 5,185.56 mi (8,345.36 km) |
| Mercer Island to Almeirim | 5,189.42 mi (8,351.56 km) |
| Mercer Island to Amadora | 5,192.92 mi (8,357.21 km) |
| Mercer Island to Amarante | 5,098.32 mi (8,204.95 km) |
| Mercer Island to Amares | 5,070.92 mi (8,160.85 km) |
| Mercer Island to Amora | 5,202.54 mi (8,372.69 km) |
| Mercer Island to Anadia | 5,130.22 mi (8,256.28 km) |
| Mercer Island to Angra do Heroismo | 4,524.52 mi (7,281.52 km) |
| Mercer Island to Ansiao | 5,157.62 mi (8,300.38 km) |
| Mercer Island to Anta | 5,093.38 mi (8,197.01 km) |
