| Gourock to Alenquer | 1,183.73 mi (1,905.03 km) |
| Gourock to Alfena | 1,030.40 mi (1,658.27 km) |
| Gourock to Alijo | 1,021.18 mi (1,643.43 km) |
| Gourock to Aljustrel | 1,255.85 mi (2,021.10 km) |
| Gourock to Almada | 1,210.09 mi (1,947.45 km) |
| Gourock to Almargem | 1,199.53 mi (1,930.45 km) |
| Gourock to Almeirim | 1,170.60 mi (1,883.90 km) |
| Gourock to Amadora | 1,207.04 mi (1,942.54 km) |
| Gourock to Amarante | 1,025.29 mi (1,650.05 km) |
| Gourock to Amares | 1,003.12 mi (1,614.36 km) |
| Gourock to Amora | 1,213.47 mi (1,952.89 km) |
| Gourock to Anadia | 1,084.84 mi (1,745.89 km) |
| Gourock to Angra do Heroismo | 1,576.09 mi (2,536.47 km) |
| Gourock to Ansiao | 1,120.24 mi (1,802.85 km) |
| Gourock to Anta | 1,046.92 mi (1,684.86 km) |
