| Western Springs to Alenquer | 3,999.81 mi (6,437.07 km) |
| Western Springs to Alfena | 3,947.25 mi (6,352.49 km) |
| Western Springs to Alijo | 3,993.45 mi (6,426.84 km) |
| Western Springs to Aljustrel | 4,079.35 mi (6,565.08 km) |
| Western Springs to Almada | 4,006.15 mi (6,447.27 km) |
| Western Springs to Almargem | 3,995.05 mi (6,429.41 km) |
| Western Springs to Almeirim | 4,013.09 mi (6,458.44 km) |
| Western Springs to Amadora | 4,000.81 mi (6,438.67 km) |
| Western Springs to Amarante | 3,967.05 mi (6,384.35 km) |
| Western Springs to Amares | 3,943.17 mi (6,345.93 km) |
| Western Springs to Amora | 4,009.86 mi (6,453.25 km) |
| Western Springs to Anadia | 3,978.83 mi (6,403.31 km) |
| Western Springs to Angra do Heroismo | 3,141.15 mi (5,055.19 km) |
| Western Springs to Ansiao | 3,996.63 mi (6,431.95 km) |
| Western Springs to Anta | 3,950.54 mi (6,357.78 km) |
