| Greenfield to Alenquer | 3,970.03 mi (6,389.14 km) |
| Greenfield to Alfena | 3,914.29 mi (6,299.44 km) |
| Greenfield to Alijo | 3,959.84 mi (6,372.74 km) |
| Greenfield to Aljustrel | 4,050.52 mi (6,518.68 km) |
| Greenfield to Almada | 3,976.94 mi (6,400.27 km) |
| Greenfield to Almargem | 3,965.69 mi (6,382.16 km) |
| Greenfield to Almeirim | 3,982.86 mi (6,409.80 km) |
| Greenfield to Amadora | 3,971.58 mi (6,391.63 km) |
| Greenfield to Amarante | 3,933.78 mi (6,330.81 km) |
| Greenfield to Amares | 3,909.60 mi (6,291.89 km) |
| Greenfield to Amora | 3,980.70 mi (6,406.32 km) |
| Greenfield to Anadia | 3,946.87 mi (6,351.88 km) |
| Greenfield to Angra do Heroismo | 3,123.27 mi (5,026.42 km) |
| Greenfield to Ansiao | 3,965.35 mi (6,381.61 km) |
| Greenfield to Anta | 3,917.93 mi (6,305.30 km) |
