| Sleaford to Marsala | 1,216.96 mi (1,958.51 km) |
| Sleaford to Marsciano | 909.86 mi (1,464.27 km) |
| Sleaford to Martano | 1,246.15 mi (2,005.48 km) |
| Sleaford to Martellago | 763.57 mi (1,228.85 km) |
| Sleaford to Martina Franca | 1,187.48 mi (1,911.06 km) |
| Sleaford to Martinengo | 686.99 mi (1,105.61 km) |
| Sleaford to Martinsicuro | 959.96 mi (1,544.90 km) |
| Sleaford to Mascali | 1,291.60 mi (2,078.64 km) |
| Sleaford to Mascalucia | 1,298.44 mi (2,089.64 km) |
| Sleaford to Masera di Padova | 765.79 mi (1,232.41 km) |
| Sleaford to Maserada sul Piave | 758.70 mi (1,221.02 km) |
| Sleaford to Massa | 783.46 mi (1,260.86 km) |
| Sleaford to Massa Lombarda | 809.88 mi (1,303.38 km) |
| Sleaford to Massafra | 1,186.81 mi (1,909.98 km) |
| Sleaford to Massalubrense | 1,099.65 mi (1,769.71 km) |
