| Sem to Alfena | 1,487.58 mi (2,394.04 km) |
| Sem to Alijo | 1,461.15 mi (2,351.49 km) |
| Sem to Aljustrel | 1,687.82 mi (2,716.29 km) |
| Sem to Almada | 1,661.36 mi (2,673.71 km) |
| Sem to Almargem | 1,653.44 mi (2,660.96 km) |
| Sem to Almeirim | 1,616.58 mi (2,601.63 km) |
| Sem to Amadora | 1,659.73 mi (2,671.08 km) |
| Sem to Amarante | 1,475.18 mi (2,374.08 km) |
| Sem to Amares | 1,459.75 mi (2,349.25 km) |
| Sem to Amora | 1,663.85 mi (2,677.71 km) |
| Sem to Anadia | 1,535.34 mi (2,470.88 km) |
| Sem to Angra do Heroismo | 2,171.47 mi (3,494.65 km) |
| Sem to Ansiao | 1,567.56 mi (2,522.74 km) |
| Sem to Anta | 1,504.16 mi (2,420.72 km) |
| Sem to Arcos de Valdevez | 1,447.59 mi (2,329.67 km) |
