| Portici to Alfena | 1,188.76 mi (1,913.13 km) |
| Portici to Alijo | 1,134.23 mi (1,825.36 km) |
| Portici to Aljustrel | 1,215.39 mi (1,955.99 km) |
| Portici to Almada | 1,253.24 mi (2,016.90 km) |
| Portici to Almargem | 1,256.36 mi (2,021.92 km) |
| Portici to Almeirim | 1,216.59 mi (1,957.91 km) |
| Portici to Amadora | 1,256.27 mi (2,021.77 km) |
| Portici to Amarante | 1,164.86 mi (1,874.67 km) |
| Portici to Amares | 1,176.33 mi (1,893.13 km) |
| Portici to Amora | 1,252.10 mi (2,015.07 km) |
| Portici to Anadia | 1,191.22 mi (1,917.08 km) |
| Portici to Angra do Heroismo | 2,192.29 mi (3,528.15 km) |
| Portici to Ansiao | 1,197.14 mi (1,926.61 km) |
| Portici to Anta | 1,195.74 mi (1,924.36 km) |
| Portici to Arcos de Valdevez | 1,179.46 mi (1,898.16 km) |
