| Prestonpans to Arcos de Valdevez | 1,005.31 mi (1,617.89 km) |
| Prestonpans to Arcozelo | 1,061.19 mi (1,707.83 km) |
| Prestonpans to Arganil | 1,112.00 mi (1,789.60 km) |
| Prestonpans to Arouca | 1,065.28 mi (1,714.41 km) |
| Prestonpans to Arruda dos Vinhos | 1,205.97 mi (1,940.82 km) |
| Prestonpans to Aveiro | 1,089.85 mi (1,753.94 km) |
| Prestonpans to Aver-o-Mar | 1,039.12 mi (1,672.30 km) |
| Prestonpans to Aves | 1,031.57 mi (1,660.15 km) |
| Prestonpans to Azambuja | 1,198.22 mi (1,928.35 km) |
| Prestonpans to Baiao | 1,047.38 mi (1,685.59 km) |
| Prestonpans to Barcelos | 1,029.80 mi (1,657.30 km) |
| Prestonpans to Barreiro | 1,227.42 mi (1,975.34 km) |
| Prestonpans to Batalha | 1,158.00 mi (1,863.62 km) |
| Prestonpans to Beja | 1,259.34 mi (2,026.71 km) |
| Prestonpans to Belas | 1,222.25 mi (1,967.03 km) |
