| Swansea to Massarosa | 4,883.39 mi (7,859.06 km) |
| Swansea to Matelica | 5,016.41 mi (8,073.14 km) |
| Swansea to Matera | 5,272.02 mi (8,484.50 km) |
| Swansea to Matino | 5,362.01 mi (8,629.32 km) |
| Swansea to Mazzarino | 5,319.18 mi (8,560.39 km) |
| Swansea to Meda | 4,765.44 mi (7,669.23 km) |
| Swansea to Medesano | 4,840.13 mi (7,789.44 km) |
| Swansea to Medicina | 4,910.91 mi (7,903.34 km) |
| Swansea to Meldola | 4,941.80 mi (7,953.06 km) |
| Swansea to Melegnano | 4,783.70 mi (7,698.63 km) |
| Swansea to Melendugno | 5,359.57 mi (8,625.40 km) |
| Swansea to Melfi | 5,218.99 mi (8,399.15 km) |
| Swansea to Melilli | 5,363.38 mi (8,631.52 km) |
| Swansea to Melito di Napoli | 5,164.79 mi (8,311.92 km) |
| Swansea to Melito di Porto Salvo | 5,359.34 mi (8,625.03 km) |
