| Sleaford to Krosno Odrzanskie | 654.37 mi (1,053.10 km) |
| Sleaford to Krotoszyn | 756.81 mi (1,217.98 km) |
| Sleaford to Kruszwica | 780.36 mi (1,255.86 km) |
| Sleaford to Krynica | 953.63 mi (1,534.71 km) |
| Sleaford to Krzeszowice | 880.29 mi (1,416.69 km) |
| Sleaford to Kudowa-Zdroj | 732.57 mi (1,178.96 km) |
| Sleaford to Kutno | 828.82 mi (1,333.85 km) |
| Sleaford to Kwidzyn | 796.67 mi (1,282.11 km) |
| Sleaford to Lancut | 989.78 mi (1,592.90 km) |
| Sleaford to Lapy | 964.65 mi (1,552.45 km) |
| Sleaford to Lask | 829.07 mi (1,334.27 km) |
| Sleaford to Laziska Gorne | 847.44 mi (1,363.83 km) |
| Sleaford to Lebork | 747.23 mi (1,202.55 km) |
| Sleaford to Leczna | 990.18 mi (1,593.54 km) |
| Sleaford to Leczyca | 824.51 mi (1,326.92 km) |
