| Somma Lombardo to Arcozelo | 925.45 mi (1,489.37 km) |
| Somma Lombardo to Arganil | 925.28 mi (1,489.10 km) |
| Somma Lombardo to Arouca | 910.75 mi (1,465.72 km) |
| Somma Lombardo to Arruda dos Vinhos | 1,015.63 mi (1,634.50 km) |
| Somma Lombardo to Aveiro | 939.09 mi (1,511.32 km) |
| Somma Lombardo to Aver-o-Mar | 921.25 mi (1,482.62 km) |
| Somma Lombardo to Aves | 898.13 mi (1,445.40 km) |
| Somma Lombardo to Azambuja | 1,003.49 mi (1,614.95 km) |
| Somma Lombardo to Baiao | 893.72 mi (1,438.31 km) |
| Somma Lombardo to Barcelos | 910.85 mi (1,465.88 km) |
| Somma Lombardo to Barreiro | 1,027.66 mi (1,653.85 km) |
| Somma Lombardo to Batalha | 979.19 mi (1,575.86 km) |
| Somma Lombardo to Beja | 1,000.84 mi (1,610.70 km) |
| Somma Lombardo to Belas | 1,032.70 mi (1,661.98 km) |
| Somma Lombardo to Benavente | 1,004.24 mi (1,616.17 km) |
