| Swansea to Montijo | 4,318.48 mi (6,949.93 km) |
| Swansea to Montilla | 4,457.36 mi (7,173.43 km) |
| Swansea to Montmelo | 4,629.97 mi (7,451.22 km) |
| Swansea to Montornes del Valles | 4,631.09 mi (7,453.03 km) |
| Swansea to Montoro | 4,454.07 mi (7,168.13 km) |
| Swansea to Monzon | 4,526.48 mi (7,284.67 km) |
| Swansea to Mora | 4,424.73 mi (7,120.91 km) |
| Swansea to Moralzarzal | 4,382.14 mi (7,052.38 km) |
| Swansea to Moron de la Frontera | 4,434.55 mi (7,136.72 km) |
| Swansea to Mostoles | 4,398.42 mi (7,078.58 km) |
| Swansea to Motril | 4,539.61 mi (7,305.80 km) |
| Swansea to Muchamiel | 4,623.20 mi (7,440.33 km) |
| Swansea to Mula | 4,588.36 mi (7,384.25 km) |
| Swansea to Munguia | 4,342.94 mi (6,989.28 km) |
| Swansea to Murcia | 4,607.09 mi (7,414.40 km) |
