| Helston to Arcos de Valdevez | 589.77 mi (949.15 km) |
| Helston to Arcozelo | 645.63 mi (1,039.04 km) |
| Helston to Arganil | 695.99 mi (1,120.09 km) |
| Helston to Arouca | 649.35 mi (1,045.03 km) |
| Helston to Arruda dos Vinhos | 790.24 mi (1,271.77 km) |
| Helston to Aveiro | 674.16 mi (1,084.96 km) |
| Helston to Aver-o-Mar | 623.89 mi (1,004.05 km) |
| Helston to Aves | 615.77 mi (990.99 km) |
| Helston to Azambuja | 782.36 mi (1,259.08 km) |
| Helston to Baiao | 631.38 mi (1,016.12 km) |
| Helston to Barcelos | 614.39 mi (988.77 km) |
| Helston to Barreiro | 811.62 mi (1,306.18 km) |
| Helston to Batalha | 742.20 mi (1,194.45 km) |
| Helston to Beja | 843.62 mi (1,357.68 km) |
| Helston to Belas | 806.66 mi (1,298.20 km) |
