| Sleaford to La Union | 1,062.67 mi (1,710.20 km) |
| Sleaford to La Victoria de Acentejo | 1,884.03 mi (3,032.05 km) |
| Sleaford to Laguna de Duero | 813.55 mi (1,309.28 km) |
| Sleaford to Lalin | 798.12 mi (1,284.45 km) |
| Sleaford to Lardero | 736.41 mi (1,185.14 km) |
| Sleaford to Laredo | 676.10 mi (1,088.07 km) |
| Sleaford to Las Cabezas de San Juan | 1,138.12 mi (1,831.63 km) |
| Sleaford to Las Palmas | 1,881.71 mi (3,028.31 km) |
| Sleaford to Las Rozas de Madrid | 879.09 mi (1,414.76 km) |
| Sleaford to Las Torres de Cotillas | 1,035.06 mi (1,665.77 km) |
| Sleaford to Lebrija | 1,143.90 mi (1,840.93 km) |
| Sleaford to Leganes | 889.32 mi (1,431.22 km) |
| Sleaford to Leon | 756.25 mi (1,217.07 km) |
| Sleaford to Lepe | 1,135.66 mi (1,827.66 km) |
| Sleaford to Linares | 1,041.81 mi (1,676.64 km) |
