| Maryland Heights to Alenquer | 4,218.08 mi (6,788.34 km) |
| Maryland Heights to Alfena | 4,170.75 mi (6,712.17 km) |
| Maryland Heights to Alijo | 4,217.92 mi (6,788.08 km) |
| Maryland Heights to Aljustrel | 4,295.92 mi (6,913.61 km) |
| Maryland Heights to Almada | 4,223.44 mi (6,796.96 km) |
| Maryland Heights to Almargem | 4,212.61 mi (6,779.53 km) |
| Maryland Heights to Almeirim | 4,232.08 mi (6,810.87 km) |
| Maryland Heights to Amadora | 4,218.14 mi (6,788.44 km) |
| Maryland Heights to Amarante | 4,190.99 mi (6,744.75 km) |
| Maryland Heights to Amares | 4,167.62 mi (6,707.14 km) |
| Maryland Heights to Amora | 4,227.07 mi (6,802.81 km) |
| Maryland Heights to Anadia | 4,200.69 mi (6,760.35 km) |
| Maryland Heights to Angra do Heroismo | 3,339.17 mi (5,373.87 km) |
| Maryland Heights to Ansiao | 4,217.36 mi (6,787.19 km) |
| Maryland Heights to Anta | 4,173.45 mi (6,716.52 km) |
