| Castleford to Keizer (Oregon) | 4,801.41 mi (7,727.13 km) |
| Castleford to Keller (Texas) | 4,643.35 mi (7,472.74 km) |
| Castleford to Kelso (Washington) | 4,732.75 mi (7,616.62 km) |
| Castleford to Kemp Mill (Maryland) | 3,563.23 mi (5,734.47 km) |
| Castleford to Ken Caryl (Colorado) | 4,567.28 mi (7,350.32 km) |
| Castleford to Kendale Lakes (Florida) | 4,366.42 mi (7,027.07 km) |
| Castleford to Kendall (Florida) | 4,366.32 mi (7,026.91 km) |
| Castleford to Kendall Park (New Jersey) | 3,402.80 mi (5,476.28 km) |
| Castleford to Kendall West (Florida) | 4,367.76 mi (7,029.23 km) |
| Castleford to Kenmore (New York) | 3,453.53 mi (5,557.92 km) |
| Castleford to Kenmore (Washington) | 4,622.02 mi (7,438.43 km) |
| Castleford to Kenner (Louisiana) | 4,532.86 mi (7,294.93 km) |
| Castleford to Kennesaw (Georgia) | 4,106.11 mi (6,608.15 km) |
| Castleford to Kennett (Missouri) | 4,202.80 mi (6,763.75 km) |
| Castleford to Kennewick (Washington) | 4,629.66 mi (7,450.72 km) |
