| Mountain Ash to Arcos de Valdevez | 719.68 mi (1,158.22 km) |
| Mountain Ash to Arcozelo | 775.31 mi (1,247.75 km) |
| Mountain Ash to Arganil | 822.83 mi (1,324.21 km) |
| Mountain Ash to Arouca | 777.61 mi (1,251.44 km) |
| Mountain Ash to Arruda dos Vinhos | 919.11 mi (1,479.16 km) |
| Mountain Ash to Aveiro | 803.41 mi (1,292.97 km) |
| Mountain Ash to Aver-o-Mar | 754.37 mi (1,214.04 km) |
| Mountain Ash to Aves | 744.79 mi (1,198.63 km) |
| Mountain Ash to Azambuja | 910.72 mi (1,465.66 km) |
| Mountain Ash to Baiao | 759.16 mi (1,221.74 km) |
| Mountain Ash to Barcelos | 744.54 mi (1,198.22 km) |
| Mountain Ash to Barreiro | 940.21 mi (1,513.11 km) |
| Mountain Ash to Batalha | 870.91 mi (1,401.59 km) |
| Mountain Ash to Beja | 967.97 mi (1,557.80 km) |
| Mountain Ash to Belas | 935.91 mi (1,506.20 km) |
