| Sleaford to Irun | 670.29 mi (1,078.72 km) |
| Sleaford to Isla-Cristina | 1,140.98 mi (1,836.22 km) |
| Sleaford to Jaca | 721.78 mi (1,161.59 km) |
| Sleaford to Jaen | 1,064.49 mi (1,713.12 km) |
| Sleaford to Jerez de la Frontera | 1,160.65 mi (1,867.89 km) |
| Sleaford to Jerez de los Caballeros | 1,058.43 mi (1,703.38 km) |
| Sleaford to Jodar | 1,057.05 mi (1,701.16 km) |
| Sleaford to Jumilla | 1,003.96 mi (1,615.71 km) |
| Sleaford to La Algaba | 1,107.16 mi (1,781.80 km) |
| Sleaford to La Baneza | 781.52 mi (1,257.74 km) |
| Sleaford to La Carlota | 1,081.12 mi (1,739.90 km) |
| Sleaford to La Carolina | 1,029.13 mi (1,656.23 km) |
| Sleaford to La Corredoria | 708.71 mi (1,140.56 km) |
| Sleaford to La Eliana | 927.93 mi (1,493.36 km) |
| Sleaford to La Escala | 769.64 mi (1,238.61 km) |
