| Castellon de la Plana to Kinston (North Carolina) | 4,118.93 mi (6,628.78 km) |
| Castellon de la Plana to Kirkland (Washington) | 5,418.71 mi (8,720.58 km) |
| Castellon de la Plana to Kirksville (Missouri) | 4,637.66 mi (7,463.59 km) |
| Castellon de la Plana to Kirkwood (Missouri) | 4,603.77 mi (7,409.06 km) |
| Castellon de la Plana to Kiryas Joel (New York) | 3,760.65 mi (6,052.18 km) |
| Castellon de la Plana to Kissimmee (Florida) | 4,564.47 mi (7,345.81 km) |
| Castellon de la Plana to Klamath Falls (Oregon) | 5,689.33 mi (9,156.10 km) |
| Castellon de la Plana to Knightdale (North Carolina) | 4,145.18 mi (6,671.02 km) |
| Castellon de la Plana to Knik-Fairview (Alaska) | 5,220.15 mi (8,401.02 km) |
| Castellon de la Plana to Knoxville (Tennessee) | 4,400.99 mi (7,082.70 km) |
| Castellon de la Plana to Kokomo (Indiana) | 4,340.79 mi (6,985.83 km) |
| Castellon de la Plana to Kuna (Idaho) | 5,439.94 mi (8,754.73 km) |
| Castellon de la Plana to Kyle (Texas) | 5,297.41 mi (8,525.36 km) |
| Castellon de la Plana to La Cañada Flintridge (California) | 5,972.22 mi (9,611.36 km) |
| Castellon de la Plana to La Crescenta-Montrose (California) | 5,972.43 mi (9,611.70 km) |
