| Sioux City to Karis | 4,584.03 mi (7,377.28 km) |
| Sioux City to Karkkila | 4,574.25 mi (7,361.54 km) |
| Sioux City to Kauhajoki | 4,433.95 mi (7,135.75 km) |
| Sioux City to Kauhava | 4,421.87 mi (7,116.32 km) |
| Sioux City to Kauniainen | 4,602.25 mi (7,406.61 km) |
| Sioux City to Kemi | 4,326.05 mi (6,962.11 km) |
| Sioux City to Kemijarvi | 4,333.74 mi (6,974.48 km) |
| Sioux City to Kempele | 4,385.60 mi (7,057.93 km) |
| Sioux City to Kerava | 4,601.66 mi (7,405.65 km) |
| Sioux City to Keuruu | 4,499.81 mi (7,241.75 km) |
| Sioux City to Kiiminki | 4,380.12 mi (7,049.12 km) |
| Sioux City to Kirkkonummi | 4,599.76 mi (7,402.60 km) |
| Sioux City to Kitee | 4,625.17 mi (7,443.49 km) |
| Sioux City to Kiuruvesi | 4,471.57 mi (7,196.30 km) |
| Sioux City to Kivisto | 4,599.53 mi (7,402.22 km) |
