| Key Biscayne to Arcos de Valdevez | 4,147.99 mi (6,675.54 km) |
| Key Biscayne to Arcozelo | 4,145.34 mi (6,671.28 km) |
| Key Biscayne to Arganil | 4,185.32 mi (6,735.62 km) |
| Key Biscayne to Arouca | 4,167.02 mi (6,706.17 km) |
| Key Biscayne to Arruda dos Vinhos | 4,147.25 mi (6,674.36 km) |
| Key Biscayne to Aveiro | 4,149.55 mi (6,678.06 km) |
| Key Biscayne to Aver-o-Mar | 4,134.88 mi (6,654.45 km) |
| Key Biscayne to Aves | 4,158.48 mi (6,692.42 km) |
| Key Biscayne to Azambuja | 4,156.80 mi (6,689.72 km) |
| Key Biscayne to Baiao | 4,175.22 mi (6,719.37 km) |
| Key Biscayne to Barcelos | 4,141.45 mi (6,665.02 km) |
| Key Biscayne to Barreiro | 4,151.16 mi (6,680.65 km) |
| Key Biscayne to Batalha | 4,153.23 mi (6,683.97 km) |
| Key Biscayne to Beja | 4,222.39 mi (6,795.27 km) |
| Key Biscayne to Belas | 4,138.95 mi (6,661.00 km) |
