| Castleford to Kidderminster | 98.93 mi (159.22 km) |
| Castleford to Kidlington | 130.82 mi (210.54 km) |
| Castleford to Kidsgrove | 56.88 mi (91.55 km) |
| Castleford to Killamarsh | 27.39 mi (44.08 km) |
| Castleford to Killingworth | 91.27 mi (146.88 km) |
| Castleford to Kilmarnock | 181.31 mi (291.80 km) |
| Castleford to Kilsyth | 189.81 mi (305.47 km) |
| Castleford to Kilwinning | 189.22 mi (304.52 km) |
| Castleford to King's Lynn | 98.38 mi (158.33 km) |
| Castleford to Kings Norton | 93.49 mi (150.45 km) |
| Castleford to Kingsnorth | 202.36 mi (325.67 km) |
| Castleford to Kingsteignton | 238.73 mi (384.20 km) |
| Castleford to Kingston upon Hull | 41.88 mi (67.40 km) |
| Castleford to Kingston upon Thames | 165.37 mi (266.13 km) |
| Castleford to Kingswinford | 90.60 mi (145.81 km) |
