| Willebroek to Kenosha (Wisconsin) | 4,107.66 mi (6,610.64 km) |
| Willebroek to Kent (Ohio) | 3,926.64 mi (6,319.32 km) |
| Willebroek to Kent (Washington) | 4,933.31 mi (7,939.39 km) |
| Willebroek to Kentwood (Michigan) | 4,008.45 mi (6,450.97 km) |
| Willebroek to Kerman (California) | 5,500.42 mi (8,852.07 km) |
| Willebroek to Kernersville (North Carolina) | 4,111.28 mi (6,616.46 km) |
| Willebroek to Kerrville (Texas) | 5,167.22 mi (8,315.83 km) |
| Willebroek to Kettering (Maryland) | 3,848.31 mi (6,193.25 km) |
| Willebroek to Kettering (Ohio) | 4,102.68 mi (6,602.63 km) |
| Willebroek to Kewanee (Illinois) | 4,248.09 mi (6,836.64 km) |
| Willebroek to Key Biscayne (Florida) | 4,627.31 mi (7,446.93 km) |
| Willebroek to Key Largo (Florida) | 4,666.60 mi (7,510.17 km) |
| Willebroek to Key West (Florida) | 4,752.84 mi (7,648.96 km) |
| Willebroek to Keystone (Florida) | 4,606.18 mi (7,412.93 km) |
| Willebroek to Kihei (Hawaii) | 7,338.41 mi (11,810.03 km) |
