| Swansea to Melzo | 4,781.91 mi (7,695.75 km) |
| Swansea to Mendicino | 5,317.21 mi (8,557.23 km) |
| Swansea to Menfi | 5,253.11 mi (8,454.07 km) |
| Swansea to Mentana | 5,053.46 mi (8,132.76 km) |
| Swansea to Merano | 4,804.58 mi (7,732.22 km) |
| Swansea to Merate | 4,774.78 mi (7,684.26 km) |
| Swansea to Mercato San Severino | 5,192.37 mi (8,356.31 km) |
| Swansea to Mercogliano | 5,185.38 mi (8,345.06 km) |
| Swansea to Mesagne | 5,324.77 mi (8,569.39 km) |
| Swansea to Messina | 5,337.56 mi (8,589.97 km) |
| Swansea to Mestre | 4,893.97 mi (7,876.08 km) |
| Swansea to Mestrino | 4,877.10 mi (7,848.94 km) |
| Swansea to Milan | 4,774.13 mi (7,683.23 km) |
| Swansea to Milazzo | 5,323.21 mi (8,566.88 km) |
| Swansea to Minerbio | 4,899.03 mi (7,884.22 km) |
