| Sioux City to Kamen | 4,510.75 mi (7,259.35 km) |
| Sioux City to Kamenz | 4,737.26 mi (7,623.89 km) |
| Sioux City to Kamp-Lintfort | 4,476.16 mi (7,203.68 km) |
| Sioux City to Kandel | 4,637.42 mi (7,463.21 km) |
| Sioux City to Kappeln | 4,453.41 mi (7,167.07 km) |
| Sioux City to Karben | 4,606.92 mi (7,414.12 km) |
| Sioux City to Karlsdorf-Neuthard | 4,647.13 mi (7,478.83 km) |
| Sioux City to Karlsfeld | 4,789.84 mi (7,708.50 km) |
| Sioux City to Karlsruhe | 4,647.82 mi (7,479.94 km) |
| Sioux City to Kassel | 4,584.27 mi (7,377.67 km) |
| Sioux City to Kaufbeuren | 4,775.83 mi (7,685.95 km) |
| Sioux City to Kaufering | 4,775.70 mi (7,685.74 km) |
| Sioux City to Kaufungen | 4,589.82 mi (7,386.60 km) |
| Sioux City to Kehl | 4,646.48 mi (7,477.79 km) |
| Sioux City to Kelheim | 4,771.56 mi (7,679.09 km) |
