| Hounslow to Melzo | 608.20 mi (978.80 km) |
| Hounslow to Mendicino | 1,160.05 mi (1,866.92 km) |
| Hounslow to Menfi | 1,157.40 mi (1,862.66 km) |
| Hounslow to Mentana | 895.55 mi (1,441.25 km) |
| Hounslow to Merano | 617.38 mi (993.58 km) |
| Hounslow to Merate | 598.87 mi (963.78 km) |
| Hounslow to Mercato San Severino | 1,030.81 mi (1,658.94 km) |
| Hounslow to Mercogliano | 1,022.55 mi (1,645.64 km) |
| Hounslow to Mesagne | 1,146.60 mi (1,845.27 km) |
| Hounslow to Messina | 1,198.96 mi (1,929.55 km) |
| Hounslow to Mestre | 708.54 mi (1,140.28 km) |
| Hounslow to Mestrino | 693.04 mi (1,115.35 km) |
| Hounslow to Milan | 602.31 mi (969.32 km) |
| Hounslow to Milazzo | 1,187.81 mi (1,911.60 km) |
| Hounslow to Minerbio | 721.92 mi (1,161.82 km) |
