| Greensboro to Alenquer | 3,781.55 mi (6,085.81 km) |
| Greensboro to Alfena | 3,753.70 mi (6,040.99 km) |
| Greensboro to Alijo | 3,804.13 mi (6,122.15 km) |
| Greensboro to Aljustrel | 3,852.89 mi (6,200.63 km) |
| Greensboro to Almada | 3,783.55 mi (6,089.03 km) |
| Greensboro to Almargem | 3,773.73 mi (6,073.23 km) |
| Greensboro to Almeirim | 3,797.89 mi (6,112.12 km) |
| Greensboro to Amadora | 3,778.46 mi (6,080.85 km) |
| Greensboro to Amarante | 3,775.46 mi (6,076.02 km) |
| Greensboro to Amares | 3,754.34 mi (6,042.03 km) |
| Greensboro to Amora | 3,786.87 mi (6,094.37 km) |
| Greensboro to Anadia | 3,777.12 mi (6,078.69 km) |
| Greensboro to Angra do Heroismo | 2,854.23 mi (4,593.44 km) |
| Greensboro to Ansiao | 3,789.53 mi (6,098.65 km) |
| Greensboro to Anta | 3,754.17 mi (6,041.75 km) |
