| Silea to Alfena | 1,084.61 mi (1,745.52 km) |
| Silea to Alijo | 1,033.53 mi (1,663.31 km) |
| Silea to Aljustrel | 1,177.40 mi (1,894.85 km) |
| Silea to Almada | 1,194.93 mi (1,923.06 km) |
| Silea to Almargem | 1,194.34 mi (1,922.11 km) |
| Silea to Almeirim | 1,151.74 mi (1,853.54 km) |
| Silea to Amadora | 1,196.55 mi (1,925.66 km) |
| Silea to Amarante | 1,061.96 mi (1,709.06 km) |
| Silea to Amares | 1,065.33 mi (1,714.49 km) |
| Silea to Amora | 1,195.01 mi (1,923.18 km) |
| Silea to Anadia | 1,103.42 mi (1,775.79 km) |
| Silea to Angra do Heroismo | 2,058.56 mi (3,312.93 km) |
| Silea to Ansiao | 1,119.48 mi (1,801.64 km) |
| Silea to Anta | 1,095.77 mi (1,763.47 km) |
| Silea to Arcos de Valdevez | 1,063.52 mi (1,711.57 km) |
