| Porthcawl to Masanasa | 848.96 mi (1,366.28 km) |
| Porthcawl to Masquefa | 736.81 mi (1,185.79 km) |
| Porthcawl to Matadepera | 733.88 mi (1,181.07 km) |
| Porthcawl to Mazarron | 966.11 mi (1,554.80 km) |
| Porthcawl to Meco | 755.12 mi (1,215.25 km) |
| Porthcawl to Medina del Campo | 705.77 mi (1,135.82 km) |
| Porthcawl to Medina Sidonia | 1,043.08 mi (1,678.68 km) |
| Porthcawl to Mejorada del Campo | 765.92 mi (1,232.63 km) |
| Porthcawl to Meliana | 841.32 mi (1,353.97 km) |
| Porthcawl to Mengibar | 933.59 mi (1,502.46 km) |
| Porthcawl to Merida | 878.52 mi (1,413.84 km) |
| Porthcawl to Miajadas | 859.59 mi (1,383.37 km) |
| Porthcawl to Mieres | 576.84 mi (928.34 km) |
| Porthcawl to Miguelturra | 864.68 mi (1,391.56 km) |
| Porthcawl to Mijas | 1,029.15 mi (1,656.26 km) |
