| Sleaford to Hoyo de Manzanares | 869.53 mi (1,399.37 km) |
| Sleaford to Huelva | 1,132.49 mi (1,822.57 km) |
| Sleaford to Huercal de Almeria | 1,117.54 mi (1,798.51 km) |
| Sleaford to Huercal-Overa | 1,081.21 mi (1,740.03 km) |
| Sleaford to Huesca | 750.54 mi (1,207.88 km) |
| Sleaford to Huetor Vega | 1,105.34 mi (1,778.87 km) |
| Sleaford to Huetor-Tajar | 1,105.69 mi (1,779.43 km) |
| Sleaford to Humanes de Madrid | 894.91 mi (1,440.23 km) |
| Sleaford to Ibi | 992.82 mi (1,597.79 km) |
| Sleaford to Ibiza | 977.27 mi (1,572.76 km) |
| Sleaford to Icod de los Vinos | 1,894.62 mi (3,049.10 km) |
| Sleaford to Igualada | 794.33 mi (1,278.34 km) |
| Sleaford to Illescas | 904.32 mi (1,455.36 km) |
| Sleaford to Inca | 930.88 mi (1,498.11 km) |
| Sleaford to Ingenio | 1,895.10 mi (3,049.87 km) |
