| Nettuno to Alfena | 1,096.49 mi (1,764.64 km) |
| Nettuno to Alijo | 1,042.07 mi (1,677.06 km) |
| Nettuno to Aljustrel | 1,131.50 mi (1,820.97 km) |
| Nettuno to Almada | 1,166.65 mi (1,877.53 km) |
| Nettuno to Almargem | 1,169.28 mi (1,881.78 km) |
| Nettuno to Almeirim | 1,128.95 mi (1,816.86 km) |
| Nettuno to Amadora | 1,169.50 mi (1,882.12 km) |
| Nettuno to Amarante | 1,072.62 mi (1,726.22 km) |
| Nettuno to Amares | 1,083.36 mi (1,743.50 km) |
| Nettuno to Amora | 1,165.66 mi (1,875.96 km) |
| Nettuno to Anadia | 1,100.68 mi (1,771.37 km) |
| Nettuno to Angra do Heroismo | 2,099.24 mi (3,378.40 km) |
| Nettuno to Ansiao | 1,107.80 mi (1,782.84 km) |
| Nettuno to Anta | 1,103.92 mi (1,776.59 km) |
| Nettuno to Arcos de Valdevez | 1,086.05 mi (1,747.83 km) |
