| Swansea to Masanasa | 4,589.33 mi (7,385.81 km) |
| Swansea to Masquefa | 4,612.65 mi (7,423.34 km) |
| Swansea to Matadepera | 4,618.28 mi (7,432.41 km) |
| Swansea to Mazarron | 4,612.63 mi (7,423.30 km) |
| Swansea to Meco | 4,415.64 mi (7,106.29 km) |
| Swansea to Medina del Campo | 4,318.02 mi (6,949.18 km) |
| Swansea to Medina Sidonia | 4,435.08 mi (7,137.57 km) |
| Swansea to Mejorada del Campo | 4,418.28 mi (7,110.54 km) |
| Swansea to Meliana | 4,587.31 mi (7,382.55 km) |
| Swansea to Mengibar | 4,482.75 mi (7,214.29 km) |
| Swansea to Merida | 4,332.19 mi (6,971.99 km) |
| Swansea to Miajadas | 4,336.34 mi (6,978.66 km) |
| Swansea to Mieres | 4,216.13 mi (6,785.21 km) |
| Swansea to Miguelturra | 4,441.41 mi (7,147.76 km) |
| Swansea to Mijas | 4,491.83 mi (7,228.90 km) |
