| Americus to Alenquer | 4,133.96 mi (6,652.97 km) |
| Americus to Alfena | 4,111.56 mi (6,616.91 km) |
| Americus to Alijo | 4,162.66 mi (6,699.15 km) |
| Americus to Aljustrel | 4,203.06 mi (6,764.17 km) |
| Americus to Almada | 4,134.93 mi (6,654.53 km) |
| Americus to Almargem | 4,125.46 mi (6,639.28 km) |
| Americus to Almeirim | 4,150.95 mi (6,680.31 km) |
| Americus to Amadora | 4,129.93 mi (6,646.47 km) |
| Americus to Amarante | 4,133.64 mi (6,652.45 km) |
| Americus to Amares | 4,113.13 mi (6,619.44 km) |
| Americus to Amora | 4,138.14 mi (6,659.69 km) |
| Americus to Anadia | 4,133.23 mi (6,651.79 km) |
| Americus to Angra do Heroismo | 3,192.92 mi (5,138.51 km) |
| Americus to Ansiao | 4,144.43 mi (6,669.82 km) |
| Americus to Anta | 4,111.46 mi (6,616.76 km) |
