| Sioux City to Alenquer | 4,362.48 mi (7,020.73 km) |
| Sioux City to Alfena | 4,299.49 mi (6,919.36 km) |
| Sioux City to Alijo | 4,343.34 mi (6,989.93 km) |
| Sioux City to Aljustrel | 4,444.88 mi (7,153.35 km) |
| Sioux City to Almada | 4,370.62 mi (7,033.84 km) |
| Sioux City to Almargem | 4,359.07 mi (7,015.25 km) |
| Sioux City to Almeirim | 4,374.32 mi (7,039.78 km) |
| Sioux City to Amadora | 4,365.22 mi (7,025.14 km) |
| Sioux City to Amarante | 4,318.21 mi (6,949.49 km) |
| Sioux City to Amares | 4,293.31 mi (6,909.42 km) |
| Sioux City to Amora | 4,374.48 mi (7,040.05 km) |
| Sioux City to Anadia | 4,334.43 mi (6,975.59 km) |
| Sioux City to Angra do Heroismo | 3,537.24 mi (5,692.63 km) |
| Sioux City to Ansiao | 4,354.45 mi (7,007.81 km) |
| Sioux City to Anta | 4,304.01 mi (6,926.63 km) |
