| Barrhead to Arcos de Valdevez | 980.96 mi (1,578.71 km) |
| Barrhead to Arcozelo | 1,036.79 mi (1,668.56 km) |
| Barrhead to Arganil | 1,089.54 mi (1,753.45 km) |
| Barrhead to Arouca | 1,041.95 mi (1,676.86 km) |
| Barrhead to Arruda dos Vinhos | 1,181.74 mi (1,901.83 km) |
| Barrhead to Aveiro | 1,065.68 mi (1,715.05 km) |
| Barrhead to Aver-o-Mar | 1,014.16 mi (1,632.14 km) |
| Barrhead to Aves | 1,007.79 mi (1,621.88 km) |
| Barrhead to Azambuja | 1,174.40 mi (1,890.02 km) |
| Barrhead to Baiao | 1,024.45 mi (1,648.70 km) |
| Barrhead to Barcelos | 1,005.16 mi (1,617.65 km) |
| Barrhead to Barreiro | 1,203.35 mi (1,936.61 km) |
| Barrhead to Batalha | 1,134.03 mi (1,825.04 km) |
| Barrhead to Beja | 1,238.26 mi (1,992.79 km) |
| Barrhead to Belas | 1,197.67 mi (1,927.46 km) |
