| Greenock to Arcos de Valdevez | 988.09 mi (1,590.17 km) |
| Greenock to Arcozelo | 1,043.87 mi (1,679.94 km) |
| Greenock to Arganil | 1,097.21 mi (1,765.79 km) |
| Greenock to Arouca | 1,049.37 mi (1,688.80 km) |
| Greenock to Arruda dos Vinhos | 1,188.81 mi (1,913.20 km) |
| Greenock to Aveiro | 1,072.82 mi (1,726.53 km) |
| Greenock to Aver-o-Mar | 1,021.07 mi (1,643.25 km) |
| Greenock to Aves | 1,015.09 mi (1,633.62 km) |
| Greenock to Azambuja | 1,181.61 mi (1,901.61 km) |
| Greenock to Baiao | 1,032.01 mi (1,660.86 km) |
| Greenock to Barcelos | 1,012.18 mi (1,628.94 km) |
| Greenock to Barreiro | 1,210.46 mi (1,948.05 km) |
| Greenock to Batalha | 1,141.20 mi (1,836.58 km) |
| Greenock to Beja | 1,246.30 mi (2,005.73 km) |
| Greenock to Belas | 1,204.61 mi (1,938.63 km) |
