| Milford Haven to Miranda de Ebro | 631.71 mi (1,016.64 km) |
| Milford Haven to Mislata | 874.28 mi (1,407.01 km) |
| Milford Haven to Moana | 674.39 mi (1,085.33 km) |
| Milford Haven to Moguer | 1,001.51 mi (1,611.77 km) |
| Milford Haven to Molina de Segura | 961.87 mi (1,547.97 km) |
| Milford Haven to Molins de Rey | 785.83 mi (1,264.67 km) |
| Milford Haven to Mollerusa | 750.76 mi (1,208.23 km) |
| Milford Haven to Mollet | 782.06 mi (1,258.60 km) |
| Milford Haven to Moncada | 784.69 mi (1,262.83 km) |
| Milford Haven to Moncada | 869.77 mi (1,399.77 km) |
| Milford Haven to Monforte de Lemos | 645.96 mi (1,039.57 km) |
| Milford Haven to Monforte del Cid | 944.67 mi (1,520.30 km) |
| Milford Haven to Mongat | 787.83 mi (1,267.89 km) |
| Milford Haven to Monovar | 939.62 mi (1,512.18 km) |
| Milford Haven to Monserrat | 879.96 mi (1,416.16 km) |
