| Monte Porzio Catone to Alfena | 1,096.69 mi (1,764.95 km) |
| Monte Porzio Catone to Alijo | 1,042.39 mi (1,677.57 km) |
| Monte Porzio Catone to Aljustrel | 1,136.68 mi (1,829.32 km) |
| Monte Porzio Catone to Almada | 1,170.42 mi (1,883.61 km) |
| Monte Porzio Catone to Almargem | 1,172.79 mi (1,887.42 km) |
| Monte Porzio Catone to Almeirim | 1,132.16 mi (1,822.04 km) |
| Monte Porzio Catone to Amadora | 1,173.17 mi (1,888.04 km) |
| Monte Porzio Catone to Amarante | 1,072.85 mi (1,726.59 km) |
| Monte Porzio Catone to Amares | 1,083.00 mi (1,742.93 km) |
| Monte Porzio Catone to Amora | 1,169.53 mi (1,882.17 km) |
| Monte Porzio Catone to Anadia | 1,102.12 mi (1,773.69 km) |
| Monte Porzio Catone to Angra do Heroismo | 2,098.51 mi (3,377.22 km) |
| Monte Porzio Catone to Ansiao | 1,110.02 mi (1,786.41 km) |
| Monte Porzio Catone to Anta | 1,104.45 mi (1,777.45 km) |
| Monte Porzio Catone to Arcos de Valdevez | 1,085.32 mi (1,746.65 km) |
