| Half Moon Bay to Arcos de Valdevez | 5,561.49 mi (8,950.35 km) |
| Half Moon Bay to Arcozelo | 5,590.15 mi (8,996.48 km) |
| Half Moon Bay to Arganil | 5,652.02 mi (9,096.04 km) |
| Half Moon Bay to Arouca | 5,610.97 mi (9,029.98 km) |
| Half Moon Bay to Arruda dos Vinhos | 5,670.53 mi (9,125.84 km) |
| Half Moon Bay to Aveiro | 5,609.52 mi (9,027.65 km) |
| Half Moon Bay to Aver-o-Mar | 5,568.90 mi (8,962.29 km) |
| Half Moon Bay to Aves | 5,585.08 mi (8,988.32 km) |
| Half Moon Bay to Azambuja | 5,674.51 mi (9,132.25 km) |
| Half Moon Bay to Baiao | 5,608.07 mi (9,025.32 km) |
| Half Moon Bay to Barcelos | 5,569.44 mi (8,963.15 km) |
| Half Moon Bay to Barreiro | 5,685.35 mi (9,149.69 km) |
| Half Moon Bay to Batalha | 5,649.78 mi (9,092.45 km) |
| Half Moon Bay to Beja | 5,762.09 mi (9,273.19 km) |
| Half Moon Bay to Belas | 5,672.14 mi (9,128.43 km) |
