| Willebroek to Kinston (North Carolina) | 4,049.04 mi (6,516.30 km) |
| Willebroek to Kirkland (Washington) | 4,915.11 mi (7,910.10 km) |
| Willebroek to Kirksville (Missouri) | 4,396.88 mi (7,076.09 km) |
| Willebroek to Kirkwood (Missouri) | 4,396.79 mi (7,075.94 km) |
| Willebroek to Kiryas Joel (New York) | 3,633.12 mi (5,846.94 km) |
| Willebroek to Kissimmee (Florida) | 4,548.13 mi (7,319.50 km) |
| Willebroek to Klamath Falls (Oregon) | 5,225.33 mi (8,409.36 km) |
| Willebroek to Knightdale (North Carolina) | 4,061.62 mi (6,536.55 km) |
| Willebroek to Knik-Fairview (Alaska) | 4,527.55 mi (7,286.38 km) |
| Willebroek to Knoxville (Tennessee) | 4,273.20 mi (6,877.05 km) |
| Willebroek to Kokomo (Indiana) | 4,142.42 mi (6,666.59 km) |
| Willebroek to Kuna (Idaho) | 5,003.24 mi (8,051.94 km) |
| Willebroek to Kyle (Texas) | 5,122.27 mi (8,243.50 km) |
| Willebroek to La Cañada Flintridge (California) | 5,591.88 mi (8,999.27 km) |
| Willebroek to La Crescenta-Montrose (California) | 5,591.65 mi (8,998.89 km) |
