| Sioux City to Yuncos | 4,545.39 mi (7,315.10 km) |
| Sioux City to Zafra | 4,502.36 mi (7,245.85 km) |
| Sioux City to Zamora | 4,408.01 mi (7,094.00 km) |
| Sioux City to Zaragoza | 4,606.23 mi (7,413.01 km) |
| Sioux City to Zarautz | 4,486.67 mi (7,220.60 km) |
| Sioux City to Zuera | 4,601.06 mi (7,404.68 km) |
| Sioux City to Zumaia | 4,482.43 mi (7,213.77 km) |
| Sioux City to Zumarraga | 4,488.62 mi (7,223.73 km) |
| Sioux City to Longyearbyen | 3,646.93 mi (5,869.16 km) |
| Sioux City to Ahus | 4,530.27 mi (7,290.77 km) |
| Sioux City to Akersberga | 4,478.16 mi (7,206.91 km) |
| Sioux City to Alingsas | 4,390.55 mi (7,065.91 km) |
| Sioux City to Almhult | 4,497.44 mi (7,237.92 km) |
| Sioux City to Alta | 4,485.96 mi (7,219.45 km) |
| Sioux City to Amal | 4,346.91 mi (6,995.68 km) |
