| Sleaford to Kidbrooke | 107.61 mi (173.18 km) |
| Sleaford to Kidderminster | 87.59 mi (140.97 km) |
| Sleaford to Kidlington | 89.09 mi (143.38 km) |
| Sleaford to Kidsgrove | 76.48 mi (123.08 km) |
| Sleaford to Killamarsh | 43.46 mi (69.94 km) |
| Sleaford to Killingworth | 148.11 mi (238.36 km) |
| Sleaford to Kilmarnock | 244.33 mi (393.22 km) |
| Sleaford to Kilsyth | 252.77 mi (406.80 km) |
| Sleaford to Kilwinning | 252.17 mi (405.82 km) |
| Sleaford to King's Lynn | 37.73 mi (60.72 km) |
| Sleaford to Kings Norton | 75.32 mi (121.22 km) |
| Sleaford to Kingsnorth | 140.61 mi (226.29 km) |
| Sleaford to Kingsteignton | 217.17 mi (349.50 km) |
| Sleaford to Kingston upon Hull | 51.82 mi (83.39 km) |
| Sleaford to Kingston upon Thames | 109.67 mi (176.49 km) |
