| Rock Island to Kalispell (Montana) | 1,246.80 mi (2,006.53 km) |
| Rock Island to Kaneohe (Hawaii) | 4,090.76 mi (6,583.45 km) |
| Rock Island to Kankakee (Illinois) | 143.40 mi (230.78 km) |
| Rock Island to Kannapolis (North Carolina) | 677.98 mi (1,091.11 km) |
| Rock Island to Kansas City (Kansas) | 272.67 mi (438.82 km) |
| Rock Island to Kansas City (Missouri) | 264.67 mi (425.94 km) |
| Rock Island to Kapaa (Hawaii) | 4,143.45 mi (6,668.24 km) |
| Rock Island to Kapolei (Hawaii) | 4,107.83 mi (6,610.91 km) |
| Rock Island to Katy (Texas) | 858.73 mi (1,382.00 km) |
| Rock Island to Kaukauna (Wisconsin) | 226.71 mi (364.86 km) |
| Rock Island to Kaysville (Utah) | 1,107.35 mi (1,782.10 km) |
| Rock Island to Kearney (Missouri) | 246.61 mi (396.88 km) |
| Rock Island to Kearney (Nebraska) | 445.68 mi (717.26 km) |
| Rock Island to Kearns (Utah) | 1,114.85 mi (1,794.18 km) |
| Rock Island to Kearny (New Jersey) | 857.13 mi (1,379.41 km) |
