| Ashburn to Arcos de Valdevez | 3,535.64 mi (5,690.06 km) |
| Ashburn to Arcozelo | 3,545.15 mi (5,705.37 km) |
| Ashburn to Arganil | 3,595.50 mi (5,786.40 km) |
| Ashburn to Arouca | 3,567.38 mi (5,741.14 km) |
| Ashburn to Arruda dos Vinhos | 3,579.13 mi (5,760.06 km) |
| Ashburn to Aveiro | 3,555.57 mi (5,722.14 km) |
| Ashburn to Aver-o-Mar | 3,530.00 mi (5,680.98 km) |
| Ashburn to Aves | 3,551.66 mi (5,715.85 km) |
| Ashburn to Azambuja | 3,586.73 mi (5,772.28 km) |
| Ashburn to Baiao | 3,571.55 mi (5,747.85 km) |
| Ashburn to Barcelos | 3,534.47 mi (5,688.18 km) |
| Ashburn to Barreiro | 3,587.79 mi (5,774.00 km) |
| Ashburn to Batalha | 3,574.25 mi (5,752.20 km) |
| Ashburn to Beja | 3,664.14 mi (5,896.87 km) |
| Ashburn to Belas | 3,574.68 mi (5,752.88 km) |
