| Rockville to Alenquer | 3,562.68 mi (5,733.58 km) |
| Rockville to Alfena | 3,529.04 mi (5,679.44 km) |
| Rockville to Alijo | 3,578.67 mi (5,759.32 km) |
| Rockville to Aljustrel | 3,636.23 mi (5,851.95 km) |
| Rockville to Almada | 3,565.75 mi (5,738.52 km) |
| Rockville to Almargem | 3,555.59 mi (5,722.17 km) |
| Rockville to Almeirim | 3,578.32 mi (5,758.75 km) |
| Rockville to Amadora | 3,560.59 mi (5,730.21 km) |
| Rockville to Amarante | 3,550.43 mi (5,713.86 km) |
| Rockville to Amares | 3,528.66 mi (5,678.83 km) |
| Rockville to Amora | 3,569.18 mi (5,744.03 km) |
| Rockville to Anadia | 3,554.35 mi (5,720.17 km) |
| Rockville to Angra do Heroismo | 2,651.69 mi (4,267.48 km) |
| Rockville to Ansiao | 3,568.02 mi (5,742.17 km) |
| Rockville to Anta | 3,530.13 mi (5,681.20 km) |
