| Sioux City to Arcos de Valdevez | 4,280.86 mi (6,889.38 km) |
| Sioux City to Arcozelo | 4,301.53 mi (6,922.65 km) |
| Sioux City to Arganil | 4,359.32 mi (7,015.64 km) |
| Sioux City to Arouca | 4,323.31 mi (6,957.70 km) |
| Sioux City to Arruda dos Vinhos | 4,362.86 mi (7,021.35 km) |
| Sioux City to Aveiro | 4,317.28 mi (6,947.99 km) |
| Sioux City to Aver-o-Mar | 4,282.62 mi (6,892.21 km) |
| Sioux City to Aves | 4,301.50 mi (6,922.59 km) |
| Sioux City to Azambuja | 4,368.47 mi (7,030.37 km) |
| Sioux City to Baiao | 4,323.50 mi (6,958.00 km) |
| Sioux City to Barcelos | 4,284.91 mi (6,895.89 km) |
| Sioux City to Barreiro | 4,375.23 mi (7,041.25 km) |
| Sioux City to Batalha | 4,348.71 mi (6,998.57 km) |
| Sioux City to Beja | 4,452.86 mi (7,166.18 km) |
| Sioux City to Belas | 4,361.87 mi (7,019.76 km) |
