| Castel San Giorgio to Alfena | 1,207.69 mi (1,943.60 km) |
| Castel San Giorgio to Alijo | 1,153.16 mi (1,855.83 km) |
| Castel San Giorgio to Aljustrel | 1,234.07 mi (1,986.04 km) |
| Castel San Giorgio to Almada | 1,272.06 mi (2,047.18 km) |
| Castel San Giorgio to Almargem | 1,275.20 mi (2,052.24 km) |
| Castel San Giorgio to Almeirim | 1,235.45 mi (1,988.27 km) |
| Castel San Giorgio to Amadora | 1,275.09 mi (2,052.06 km) |
| Castel San Giorgio to Amarante | 1,183.80 mi (1,905.14 km) |
| Castel San Giorgio to Amares | 1,195.25 mi (1,923.58 km) |
| Castel San Giorgio to Amora | 1,270.91 mi (2,045.34 km) |
| Castel San Giorgio to Anadia | 1,210.15 mi (1,947.55 km) |
| Castel San Giorgio to Angra do Heroismo | 2,211.21 mi (3,558.60 km) |
| Castel San Giorgio to Ansiao | 1,216.05 mi (1,957.05 km) |
| Castel San Giorgio to Anta | 1,214.68 mi (1,954.84 km) |
| Castel San Giorgio to Arcos de Valdevez | 1,198.37 mi (1,928.58 km) |
