| Opovo to Arcos de Valdevez | 1,455.99 mi (2,343.19 km) |
| Opovo to Arcozelo | 1,485.05 mi (2,389.95 km) |
| Opovo to Arganil | 1,477.67 mi (2,378.08 km) |
| Opovo to Arouca | 1,468.75 mi (2,363.72 km) |
| Opovo to Arruda dos Vinhos | 1,561.46 mi (2,512.92 km) |
| Opovo to Aveiro | 1,496.00 mi (2,407.58 km) |
| Opovo to Aver-o-Mar | 1,483.11 mi (2,386.84 km) |
| Opovo to Aves | 1,459.39 mi (2,348.65 km) |
| Opovo to Azambuja | 1,549.29 mi (2,493.34 km) |
| Opovo to Baiao | 1,452.79 mi (2,338.04 km) |
| Opovo to Barcelos | 1,473.08 mi (2,370.69 km) |
| Opovo to Barreiro | 1,570.87 mi (2,528.08 km) |
| Opovo to Batalha | 1,529.42 mi (2,461.37 km) |
| Opovo to Beja | 1,533.19 mi (2,467.43 km) |
| Opovo to Belas | 1,577.57 mi (2,538.85 km) |
