| Portimao to Melzo | 1,092.61 mi (1,758.38 km) |
| Portimao to Mendicino | 1,346.71 mi (2,167.33 km) |
| Portimao to Menfi | 1,178.79 mi (1,897.07 km) |
| Portimao to Mentana | 1,174.16 mi (1,889.63 km) |
| Portimao to Merano | 1,203.01 mi (1,936.06 km) |
| Portimao to Merate | 1,099.36 mi (1,769.26 km) |
| Portimao to Mercato San Severino | 1,273.19 mi (2,048.99 km) |
| Portimao to Mercogliano | 1,272.62 mi (2,048.09 km) |
| Portimao to Mesagne | 1,431.37 mi (2,303.56 km) |
| Portimao to Messina | 1,316.02 mi (2,117.94 km) |
| Portimao to Mestre | 1,217.90 mi (1,960.02 km) |
| Portimao to Mestrino | 1,195.59 mi (1,924.12 km) |
| Portimao to Milan | 1,081.72 mi (1,740.86 km) |
| Portimao to Milazzo | 1,298.73 mi (2,090.10 km) |
| Portimao to Minerbio | 1,161.94 mi (1,869.97 km) |
