| Ustron to Masquefa | 994.93 mi (1,601.19 km) |
| Ustron to Matadepera | 982.16 mi (1,580.63 km) |
| Ustron to Mazarron | 1,301.67 mi (2,094.84 km) |
| Ustron to Meco | 1,244.17 mi (2,002.30 km) |
| Ustron to Medina del Campo | 1,280.25 mi (2,060.36 km) |
| Ustron to Medina Sidonia | 1,535.77 mi (2,471.58 km) |
| Ustron to Mejorada del Campo | 1,253.35 mi (2,017.07 km) |
| Ustron to Meliana | 1,170.69 mi (1,884.04 km) |
| Ustron to Mengibar | 1,380.26 mi (2,221.32 km) |
| Ustron to Merida | 1,440.31 mi (2,317.95 km) |
| Ustron to Miajadas | 1,418.29 mi (2,282.52 km) |
| Ustron to Mieres | 1,245.28 mi (2,004.09 km) |
| Ustron to Miguelturra | 1,339.57 mi (2,155.84 km) |
| Ustron to Mijas | 1,478.69 mi (2,379.72 km) |
| Ustron to Miranda de Ebro | 1,142.42 mi (1,838.54 km) |
