| Severn to Arcos de Valdevez | 3,495.09 mi (5,624.81 km) |
| Severn to Arcozelo | 3,504.40 mi (5,639.78 km) |
| Severn to Arganil | 3,554.60 mi (5,720.57 km) |
| Severn to Arouca | 3,526.62 mi (5,675.55 km) |
| Severn to Arruda dos Vinhos | 3,537.91 mi (5,693.72 km) |
| Severn to Aveiro | 3,514.72 mi (5,656.40 km) |
| Severn to Aver-o-Mar | 3,489.32 mi (5,615.51 km) |
| Severn to Aves | 3,511.03 mi (5,650.45 km) |
| Severn to Azambuja | 3,545.54 mi (5,705.99 km) |
| Severn to Baiao | 3,530.86 mi (5,682.38 km) |
| Severn to Barcelos | 3,493.83 mi (5,622.78 km) |
| Severn to Barreiro | 3,546.51 mi (5,707.56 km) |
| Severn to Batalha | 3,533.17 mi (5,686.10 km) |
| Severn to Beja | 3,622.82 mi (5,830.36 km) |
| Severn to Belas | 3,533.40 mi (5,686.46 km) |
