| Sleaford to Mancha Real | 1,062.01 mi (1,709.14 km) |
| Sleaford to Manilva | 1,171.48 mi (1,885.32 km) |
| Sleaford to Manises | 933.64 mi (1,502.55 km) |
| Sleaford to Manlleu | 769.96 mi (1,239.13 km) |
| Sleaford to Manresa | 785.59 mi (1,264.29 km) |
| Sleaford to Manzanares | 977.44 mi (1,573.04 km) |
| Sleaford to Manzanares el Real | 862.94 mi (1,388.77 km) |
| Sleaford to Maracena | 1,102.35 mi (1,774.07 km) |
| Sleaford to Marbella | 1,158.97 mi (1,865.18 km) |
| Sleaford to Marchena | 1,108.62 mi (1,784.14 km) |
| Sleaford to Marin | 826.49 mi (1,330.11 km) |
| Sleaford to Marratxi | 934.71 mi (1,504.27 km) |
| Sleaford to Martorell | 803.51 mi (1,293.12 km) |
| Sleaford to Martos | 1,069.36 mi (1,720.97 km) |
| Sleaford to Masamagrell | 927.63 mi (1,492.88 km) |
