| Opera to Arcozelo | 945.13 mi (1,521.04 km) |
| Opera to Arganil | 943.08 mi (1,517.74 km) |
| Opera to Arouca | 929.96 mi (1,496.63 km) |
| Opera to Arruda dos Vinhos | 1,032.11 mi (1,661.02 km) |
| Opera to Aveiro | 958.03 mi (1,541.81 km) |
| Opera to Aver-o-Mar | 941.61 mi (1,515.38 km) |
| Opera to Aves | 918.28 mi (1,477.83 km) |
| Opera to Azambuja | 1,019.94 mi (1,641.44 km) |
| Opera to Baiao | 913.21 mi (1,469.68 km) |
| Opera to Barcelos | 931.32 mi (1,498.81 km) |
| Opera to Barreiro | 1,043.63 mi (1,679.56 km) |
| Opera to Batalha | 996.57 mi (1,603.82 km) |
| Opera to Beja | 1,014.74 mi (1,633.07 km) |
| Opera to Belas | 1,049.01 mi (1,688.22 km) |
| Opera to Benavente | 1,020.48 mi (1,642.31 km) |
