| Harlingen to Masquefa | 823.60 mi (1,325.46 km) |
| Harlingen to Matadepera | 814.86 mi (1,311.39 km) |
| Harlingen to Mazarron | 1,123.54 mi (1,808.16 km) |
| Harlingen to Meco | 963.34 mi (1,550.35 km) |
| Harlingen to Medina del Campo | 950.98 mi (1,530.45 km) |
| Harlingen to Medina Sidonia | 1,277.64 mi (2,056.16 km) |
| Harlingen to Mejorada del Campo | 974.59 mi (1,568.45 km) |
| Harlingen to Meliana | 981.49 mi (1,579.56 km) |
| Harlingen to Mengibar | 1,139.39 mi (1,833.68 km) |
| Harlingen to Merida | 1,132.80 mi (1,823.07 km) |
| Harlingen to Miajadas | 1,111.04 mi (1,788.05 km) |
| Harlingen to Mieres | 855.87 mi (1,377.38 km) |
| Harlingen to Miguelturra | 1,077.48 mi (1,734.03 km) |
| Harlingen to Mijas | 1,243.70 mi (2,001.54 km) |
| Harlingen to Miranda de Ebro | 820.40 mi (1,320.31 km) |
