| Swansea to Marsala | 5,222.01 mi (8,404.02 km) |
| Swansea to Marsciano | 5,003.20 mi (8,051.87 km) |
| Swansea to Martano | 5,361.23 mi (8,628.07 km) |
| Swansea to Martellago | 4,888.54 mi (7,867.34 km) |
| Swansea to Martina Franca | 5,300.11 mi (8,529.71 km) |
| Swansea to Martinengo | 4,793.15 mi (7,713.84 km) |
| Swansea to Martinsicuro | 5,068.46 mi (8,156.90 km) |
| Swansea to Mascali | 5,342.08 mi (8,597.25 km) |
| Swansea to Mascalucia | 5,343.76 mi (8,599.94 km) |
| Swansea to Masera di Padova | 4,886.42 mi (7,863.94 km) |
| Swansea to Maserada sul Piave | 4,886.52 mi (7,864.09 km) |
| Swansea to Massa | 4,868.62 mi (7,835.29 km) |
| Swansea to Massa Lombarda | 4,919.58 mi (7,917.30 km) |
| Swansea to Massafra | 5,296.56 mi (8,523.99 km) |
| Swansea to Massalubrense | 5,182.42 mi (8,340.30 km) |
