| Sioux City to Kluczbork | 4,880.39 mi (7,854.24 km) |
| Sioux City to Knurow | 4,932.30 mi (7,937.77 km) |
| Sioux City to Kobylka | 4,903.52 mi (7,891.46 km) |
| Sioux City to Kokoszki | 4,725.77 mi (7,605.40 km) |
| Sioux City to Kolbuszowa | 5,025.06 mi (8,087.05 km) |
| Sioux City to Kolno | 4,870.76 mi (7,838.73 km) |
| Sioux City to Kolo | 4,833.98 mi (7,779.54 km) |
| Sioux City to Kolobrzeg | 4,648.24 mi (7,480.61 km) |
| Sioux City to Koluszki | 4,891.05 mi (7,871.39 km) |
| Sioux City to Komorniki | 4,771.98 mi (7,679.76 km) |
| Sioux City to Konin | 4,822.11 mi (7,760.43 km) |
| Sioux City to Konskie | 4,936.80 mi (7,945.01 km) |
| Sioux City to Konstancin-Jeziorna | 4,913.57 mi (7,907.63 km) |
| Sioux City to Konstantynow Lodzki | 4,877.03 mi (7,848.82 km) |
| Sioux City to Koronowo | 4,759.15 mi (7,659.11 km) |
