| Castleford to Kenosha (Wisconsin) | 3,808.12 mi (6,128.57 km) |
| Castleford to Kent (Ohio) | 3,632.36 mi (5,845.71 km) |
| Castleford to Kent (Washington) | 4,642.01 mi (7,470.59 km) |
| Castleford to Kentwood (Michigan) | 3,709.81 mi (5,970.35 km) |
| Castleford to Kerman (California) | 5,200.95 mi (8,370.13 km) |
| Castleford to Kernersville (North Carolina) | 3,824.73 mi (6,155.30 km) |
| Castleford to Kerrville (Texas) | 4,869.35 mi (7,836.47 km) |
| Castleford to Kettering (Maryland) | 3,561.27 mi (5,731.31 km) |
| Castleford to Kettering (Ohio) | 3,807.83 mi (6,128.12 km) |
| Castleford to Kewanee (Illinois) | 3,948.46 mi (6,354.42 km) |
| Castleford to Key Biscayne (Florida) | 4,357.49 mi (7,012.71 km) |
| Castleford to Key Largo (Florida) | 4,397.35 mi (7,076.85 km) |
| Castleford to Key West (Florida) | 4,482.12 mi (7,213.28 km) |
| Castleford to Keystone (Florida) | 4,328.31 mi (6,965.74 km) |
| Castleford to Kihei (Hawaii) | 7,080.58 mi (11,395.09 km) |
